Pierre-vh updated this revision to Diff 480431.
Pierre-vh added a comment.
- Only accept bf16 on AMDGCN; r600 doesn't support it (we could but it's not
worth the effort I think; I'll look at it if we find out it's needed)
- Remove bf16 types from a few register classes
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D139398/new/
https://reviews.llvm.org/D139398
Files:
clang/lib/Basic/Targets/AMDGPU.cpp
clang/lib/Basic/Targets/AMDGPU.h
clang/test/CodeGenCUDA/amdgpu-bf16.cu
clang/test/SemaCUDA/amdgpu-bf16.cu
llvm/lib/Target/AMDGPU/AMDGPUCallingConv.td
llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp
llvm/lib/Target/AMDGPU/SIISelLowering.cpp
llvm/lib/Target/AMDGPU/SIInstructions.td
llvm/lib/Target/AMDGPU/SIRegisterInfo.td
llvm/lib/Target/AMDGPU/VOP3PInstructions.td
llvm/test/CodeGen/AMDGPU/bf16-ops.ll
llvm/test/CodeGen/AMDGPU/bf16.ll
Index: llvm/test/CodeGen/AMDGPU/bf16.ll
===================================================================
--- /dev/null
+++ llvm/test/CodeGen/AMDGPU/bf16.ll
@@ -0,0 +1,956 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -march=amdgcn -verify-machineinstrs | FileCheck %s -check-prefixes=GCN
+; RUN: llc < %s -march=amdgcn -mcpu=hawaii -verify-machineinstrs | FileCheck %s -check-prefixes=GFX7
+; RUN: llc < %s -march=amdgcn -mcpu=tonga -verify-machineinstrs | FileCheck %s -check-prefixes=GFX8
+; RUN: llc < %s -march=amdgcn -mcpu=gfx900 -verify-machineinstrs | FileCheck %s -check-prefixes=GFX9
+; RUN: llc < %s -march=amdgcn -mcpu=gfx1010 -verify-machineinstrs | FileCheck %s -check-prefixes=GFX10
+
+; We only have storage-only BF16 support. We can load/store those values as we treat them as u16, but
+; we don't support operations on them. As such, codegen is expected to fail for any operation other
+; than simple load/stores.
+
+define void @test_load_store(bfloat addrspace(1)* %in, bfloat addrspace(1)* %out) {
+; GCN-LABEL: test_load_store:
+; GCN: ; %bb.0:
+; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GCN-NEXT: s_mov_b32 s6, 0
+; GCN-NEXT: s_mov_b32 s7, 0xf000
+; GCN-NEXT: s_mov_b32 s4, s6
+; GCN-NEXT: s_mov_b32 s5, s6
+; GCN-NEXT: buffer_load_ushort v0, v[0:1], s[4:7], 0 addr64
+; GCN-NEXT: s_waitcnt vmcnt(0)
+; GCN-NEXT: buffer_store_short v0, v[2:3], s[4:7], 0 addr64
+; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0)
+; GCN-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX7-LABEL: test_load_store:
+; GFX7: ; %bb.0:
+; GFX7-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX7-NEXT: s_mov_b32 s6, 0
+; GFX7-NEXT: s_mov_b32 s7, 0xf000
+; GFX7-NEXT: s_mov_b32 s4, s6
+; GFX7-NEXT: s_mov_b32 s5, s6
+; GFX7-NEXT: buffer_load_ushort v0, v[0:1], s[4:7], 0 addr64
+; GFX7-NEXT: s_waitcnt vmcnt(0)
+; GFX7-NEXT: buffer_store_short v0, v[2:3], s[4:7], 0 addr64
+; GFX7-NEXT: s_waitcnt vmcnt(0)
+; GFX7-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX8-LABEL: test_load_store:
+; GFX8: ; %bb.0:
+; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX8-NEXT: flat_load_ushort v0, v[0:1]
+; GFX8-NEXT: s_waitcnt vmcnt(0)
+; GFX8-NEXT: flat_store_short v[2:3], v0
+; GFX8-NEXT: s_waitcnt vmcnt(0)
+; GFX8-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX9-LABEL: test_load_store:
+; GFX9: ; %bb.0:
+; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-NEXT: global_load_ushort v0, v[0:1], off
+; GFX9-NEXT: s_waitcnt vmcnt(0)
+; GFX9-NEXT: global_store_short v[2:3], v0, off
+; GFX9-NEXT: s_waitcnt vmcnt(0)
+; GFX9-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX10-LABEL: test_load_store:
+; GFX10: ; %bb.0:
+; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT: global_load_ushort v0, v[0:1], off
+; GFX10-NEXT: s_waitcnt vmcnt(0)
+; GFX10-NEXT: global_store_short v[2:3], v0, off
+; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT: s_setpc_b64 s[30:31]
+ %val = load bfloat, bfloat addrspace(1)* %in
+ store bfloat %val, bfloat addrspace(1) * %out
+ ret void
+}
+
+define void @test_load_store_v2bf16(<2 x bfloat> addrspace(1)* %in, <2 x bfloat> addrspace(1)* %out) {
+; GCN-LABEL: test_load_store_v2bf16:
+; GCN: ; %bb.0:
+; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GCN-NEXT: s_mov_b32 s6, 0
+; GCN-NEXT: s_mov_b32 s7, 0xf000
+; GCN-NEXT: s_mov_b32 s4, s6
+; GCN-NEXT: s_mov_b32 s5, s6
+; GCN-NEXT: buffer_load_dword v0, v[0:1], s[4:7], 0 addr64
+; GCN-NEXT: s_waitcnt vmcnt(0)
+; GCN-NEXT: buffer_store_dword v0, v[2:3], s[4:7], 0 addr64
+; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0)
+; GCN-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX7-LABEL: test_load_store_v2bf16:
+; GFX7: ; %bb.0:
+; GFX7-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX7-NEXT: s_mov_b32 s6, 0
+; GFX7-NEXT: s_mov_b32 s7, 0xf000
+; GFX7-NEXT: s_mov_b32 s4, s6
+; GFX7-NEXT: s_mov_b32 s5, s6
+; GFX7-NEXT: buffer_load_dword v0, v[0:1], s[4:7], 0 addr64
+; GFX7-NEXT: s_waitcnt vmcnt(0)
+; GFX7-NEXT: buffer_store_dword v0, v[2:3], s[4:7], 0 addr64
+; GFX7-NEXT: s_waitcnt vmcnt(0)
+; GFX7-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX8-LABEL: test_load_store_v2bf16:
+; GFX8: ; %bb.0:
+; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX8-NEXT: flat_load_dword v0, v[0:1]
+; GFX8-NEXT: s_waitcnt vmcnt(0)
+; GFX8-NEXT: flat_store_dword v[2:3], v0
+; GFX8-NEXT: s_waitcnt vmcnt(0)
+; GFX8-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX9-LABEL: test_load_store_v2bf16:
+; GFX9: ; %bb.0:
+; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-NEXT: global_load_dword v0, v[0:1], off
+; GFX9-NEXT: s_waitcnt vmcnt(0)
+; GFX9-NEXT: global_store_dword v[2:3], v0, off
+; GFX9-NEXT: s_waitcnt vmcnt(0)
+; GFX9-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX10-LABEL: test_load_store_v2bf16:
+; GFX10: ; %bb.0:
+; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT: global_load_dword v0, v[0:1], off
+; GFX10-NEXT: s_waitcnt vmcnt(0)
+; GFX10-NEXT: global_store_dword v[2:3], v0, off
+; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT: s_setpc_b64 s[30:31]
+ %val = load <2 x bfloat>, <2 x bfloat> addrspace(1)* %in
+ store <2 x bfloat> %val, <2 x bfloat> addrspace(1) * %out
+ ret void
+}
+
+define void @test_load_store_v4bf16(<4 x bfloat> addrspace(1)* %in, <4 x bfloat> addrspace(1)* %out) {
+; GCN-LABEL: test_load_store_v4bf16:
+; GCN: ; %bb.0:
+; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GCN-NEXT: s_mov_b32 s6, 0
+; GCN-NEXT: s_mov_b32 s7, 0xf000
+; GCN-NEXT: s_mov_b32 s4, s6
+; GCN-NEXT: s_mov_b32 s5, s6
+; GCN-NEXT: buffer_load_dwordx2 v[0:1], v[0:1], s[4:7], 0 addr64
+; GCN-NEXT: s_waitcnt vmcnt(0)
+; GCN-NEXT: buffer_store_dwordx2 v[0:1], v[2:3], s[4:7], 0 addr64
+; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0)
+; GCN-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX7-LABEL: test_load_store_v4bf16:
+; GFX7: ; %bb.0:
+; GFX7-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX7-NEXT: s_mov_b32 s6, 0
+; GFX7-NEXT: s_mov_b32 s7, 0xf000
+; GFX7-NEXT: s_mov_b32 s4, s6
+; GFX7-NEXT: s_mov_b32 s5, s6
+; GFX7-NEXT: buffer_load_dwordx2 v[0:1], v[0:1], s[4:7], 0 addr64
+; GFX7-NEXT: s_waitcnt vmcnt(0)
+; GFX7-NEXT: buffer_store_dwordx2 v[0:1], v[2:3], s[4:7], 0 addr64
+; GFX7-NEXT: s_waitcnt vmcnt(0)
+; GFX7-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX8-LABEL: test_load_store_v4bf16:
+; GFX8: ; %bb.0:
+; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX8-NEXT: flat_load_dwordx2 v[0:1], v[0:1]
+; GFX8-NEXT: s_waitcnt vmcnt(0)
+; GFX8-NEXT: flat_store_dwordx2 v[2:3], v[0:1]
+; GFX8-NEXT: s_waitcnt vmcnt(0)
+; GFX8-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX9-LABEL: test_load_store_v4bf16:
+; GFX9: ; %bb.0:
+; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-NEXT: global_load_dwordx2 v[0:1], v[0:1], off
+; GFX9-NEXT: s_waitcnt vmcnt(0)
+; GFX9-NEXT: global_store_dwordx2 v[2:3], v[0:1], off
+; GFX9-NEXT: s_waitcnt vmcnt(0)
+; GFX9-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX10-LABEL: test_load_store_v4bf16:
+; GFX10: ; %bb.0:
+; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT: global_load_dwordx2 v[0:1], v[0:1], off
+; GFX10-NEXT: s_waitcnt vmcnt(0)
+; GFX10-NEXT: global_store_dwordx2 v[2:3], v[0:1], off
+; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT: s_setpc_b64 s[30:31]
+ %val = load <4 x bfloat>, <4 x bfloat> addrspace(1)* %in
+ store <4 x bfloat> %val, <4 x bfloat> addrspace(1) * %out
+ ret void
+}
+
+define void @test_load_store_v8bf16(<8 x bfloat> addrspace(1)* %in, <8 x bfloat> addrspace(1)* %out) {
+; GCN-LABEL: test_load_store_v8bf16:
+; GCN: ; %bb.0:
+; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GCN-NEXT: s_mov_b32 s6, 0
+; GCN-NEXT: s_mov_b32 s7, 0xf000
+; GCN-NEXT: s_mov_b32 s4, s6
+; GCN-NEXT: s_mov_b32 s5, s6
+; GCN-NEXT: buffer_load_dwordx4 v[4:7], v[0:1], s[4:7], 0 addr64
+; GCN-NEXT: s_waitcnt vmcnt(0)
+; GCN-NEXT: buffer_store_dwordx4 v[4:7], v[2:3], s[4:7], 0 addr64
+; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0)
+; GCN-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX7-LABEL: test_load_store_v8bf16:
+; GFX7: ; %bb.0:
+; GFX7-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX7-NEXT: s_mov_b32 s6, 0
+; GFX7-NEXT: s_mov_b32 s7, 0xf000
+; GFX7-NEXT: s_mov_b32 s4, s6
+; GFX7-NEXT: s_mov_b32 s5, s6
+; GFX7-NEXT: buffer_load_dwordx4 v[4:7], v[0:1], s[4:7], 0 addr64
+; GFX7-NEXT: s_waitcnt vmcnt(0)
+; GFX7-NEXT: buffer_store_dwordx4 v[4:7], v[2:3], s[4:7], 0 addr64
+; GFX7-NEXT: s_waitcnt vmcnt(0)
+; GFX7-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX8-LABEL: test_load_store_v8bf16:
+; GFX8: ; %bb.0:
+; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX8-NEXT: flat_load_dwordx4 v[4:7], v[0:1]
+; GFX8-NEXT: s_waitcnt vmcnt(0)
+; GFX8-NEXT: flat_store_dwordx4 v[2:3], v[4:7]
+; GFX8-NEXT: s_waitcnt vmcnt(0)
+; GFX8-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX9-LABEL: test_load_store_v8bf16:
+; GFX9: ; %bb.0:
+; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-NEXT: global_load_dwordx4 v[4:7], v[0:1], off
+; GFX9-NEXT: s_waitcnt vmcnt(0)
+; GFX9-NEXT: global_store_dwordx4 v[2:3], v[4:7], off
+; GFX9-NEXT: s_waitcnt vmcnt(0)
+; GFX9-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX10-LABEL: test_load_store_v8bf16:
+; GFX10: ; %bb.0:
+; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT: global_load_dwordx4 v[4:7], v[0:1], off
+; GFX10-NEXT: s_waitcnt vmcnt(0)
+; GFX10-NEXT: global_store_dwordx4 v[2:3], v[4:7], off
+; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT: s_setpc_b64 s[30:31]
+ %val = load <8 x bfloat>, <8 x bfloat> addrspace(1)* %in
+ store <8 x bfloat> %val, <8 x bfloat> addrspace(1) * %out
+ ret void
+}
+
+define void @test_load_store_v16bf16(<16 x bfloat> addrspace(1)* %in, <16 x bfloat> addrspace(1)* %out) {
+; GCN-LABEL: test_load_store_v16bf16:
+; GCN: ; %bb.0:
+; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GCN-NEXT: s_mov_b32 s6, 0
+; GCN-NEXT: s_mov_b32 s7, 0xf000
+; GCN-NEXT: s_mov_b32 s4, s6
+; GCN-NEXT: s_mov_b32 s5, s6
+; GCN-NEXT: buffer_load_dwordx4 v[4:7], v[0:1], s[4:7], 0 addr64 offset:16
+; GCN-NEXT: buffer_load_dwordx4 v[8:11], v[0:1], s[4:7], 0 addr64
+; GCN-NEXT: s_waitcnt vmcnt(1)
+; GCN-NEXT: buffer_store_dwordx4 v[4:7], v[2:3], s[4:7], 0 addr64 offset:16
+; GCN-NEXT: s_waitcnt vmcnt(1)
+; GCN-NEXT: buffer_store_dwordx4 v[8:11], v[2:3], s[4:7], 0 addr64
+; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0)
+; GCN-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX7-LABEL: test_load_store_v16bf16:
+; GFX7: ; %bb.0:
+; GFX7-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX7-NEXT: s_mov_b32 s6, 0
+; GFX7-NEXT: s_mov_b32 s7, 0xf000
+; GFX7-NEXT: s_mov_b32 s4, s6
+; GFX7-NEXT: s_mov_b32 s5, s6
+; GFX7-NEXT: buffer_load_dwordx4 v[4:7], v[0:1], s[4:7], 0 addr64 offset:16
+; GFX7-NEXT: buffer_load_dwordx4 v[8:11], v[0:1], s[4:7], 0 addr64
+; GFX7-NEXT: s_waitcnt vmcnt(1)
+; GFX7-NEXT: buffer_store_dwordx4 v[4:7], v[2:3], s[4:7], 0 addr64 offset:16
+; GFX7-NEXT: s_waitcnt vmcnt(1)
+; GFX7-NEXT: buffer_store_dwordx4 v[8:11], v[2:3], s[4:7], 0 addr64
+; GFX7-NEXT: s_waitcnt vmcnt(0)
+; GFX7-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX8-LABEL: test_load_store_v16bf16:
+; GFX8: ; %bb.0:
+; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX8-NEXT: v_add_u32_e32 v8, vcc, 16, v0
+; GFX8-NEXT: v_addc_u32_e32 v9, vcc, 0, v1, vcc
+; GFX8-NEXT: flat_load_dwordx4 v[4:7], v[0:1]
+; GFX8-NEXT: flat_load_dwordx4 v[8:11], v[8:9]
+; GFX8-NEXT: v_add_u32_e32 v0, vcc, 16, v2
+; GFX8-NEXT: v_addc_u32_e32 v1, vcc, 0, v3, vcc
+; GFX8-NEXT: s_waitcnt vmcnt(1)
+; GFX8-NEXT: flat_store_dwordx4 v[2:3], v[4:7]
+; GFX8-NEXT: s_waitcnt vmcnt(1)
+; GFX8-NEXT: flat_store_dwordx4 v[0:1], v[8:11]
+; GFX8-NEXT: s_waitcnt vmcnt(0)
+; GFX8-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX9-LABEL: test_load_store_v16bf16:
+; GFX9: ; %bb.0:
+; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-NEXT: global_load_dwordx4 v[4:7], v[0:1], off offset:16
+; GFX9-NEXT: global_load_dwordx4 v[8:11], v[0:1], off
+; GFX9-NEXT: s_waitcnt vmcnt(1)
+; GFX9-NEXT: global_store_dwordx4 v[2:3], v[4:7], off offset:16
+; GFX9-NEXT: s_waitcnt vmcnt(1)
+; GFX9-NEXT: global_store_dwordx4 v[2:3], v[8:11], off
+; GFX9-NEXT: s_waitcnt vmcnt(0)
+; GFX9-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX10-LABEL: test_load_store_v16bf16:
+; GFX10: ; %bb.0:
+; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT: s_clause 0x1
+; GFX10-NEXT: global_load_dwordx4 v[4:7], v[0:1], off offset:16
+; GFX10-NEXT: global_load_dwordx4 v[8:11], v[0:1], off
+; GFX10-NEXT: s_waitcnt vmcnt(1)
+; GFX10-NEXT: global_store_dwordx4 v[2:3], v[4:7], off offset:16
+; GFX10-NEXT: s_waitcnt vmcnt(0)
+; GFX10-NEXT: global_store_dwordx4 v[2:3], v[8:11], off
+; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT: s_setpc_b64 s[30:31]
+ %val = load <16 x bfloat>, <16 x bfloat> addrspace(1)* %in
+ store <16 x bfloat> %val, <16 x bfloat> addrspace(1) * %out
+ ret void
+}
+
+define void @test_arg_store(bfloat %in, bfloat addrspace(1)* %out) {
+; GCN-LABEL: test_arg_store:
+; GCN: ; %bb.0:
+; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GCN-NEXT: s_mov_b32 s7, 0xf000
+; GCN-NEXT: s_mov_b32 s6, 0
+; GCN-NEXT: v_cvt_f16_f32_e32 v0, v0
+; GCN-NEXT: s_mov_b32 s4, s6
+; GCN-NEXT: s_mov_b32 s5, s6
+; GCN-NEXT: buffer_store_short v0, v[1:2], s[4:7], 0 addr64
+; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0)
+; GCN-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX7-LABEL: test_arg_store:
+; GFX7: ; %bb.0:
+; GFX7-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX7-NEXT: v_cvt_f16_f32_e32 v0, v0
+; GFX7-NEXT: s_mov_b32 s6, 0
+; GFX7-NEXT: s_mov_b32 s7, 0xf000
+; GFX7-NEXT: s_mov_b32 s4, s6
+; GFX7-NEXT: s_mov_b32 s5, s6
+; GFX7-NEXT: buffer_store_short v0, v[1:2], s[4:7], 0 addr64
+; GFX7-NEXT: s_waitcnt vmcnt(0)
+; GFX7-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX8-LABEL: test_arg_store:
+; GFX8: ; %bb.0:
+; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX8-NEXT: flat_store_short v[1:2], v0
+; GFX8-NEXT: s_waitcnt vmcnt(0)
+; GFX8-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX9-LABEL: test_arg_store:
+; GFX9: ; %bb.0:
+; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-NEXT: global_store_short v[1:2], v0, off
+; GFX9-NEXT: s_waitcnt vmcnt(0)
+; GFX9-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX10-LABEL: test_arg_store:
+; GFX10: ; %bb.0:
+; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT: global_store_short v[1:2], v0, off
+; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT: s_setpc_b64 s[30:31]
+ store bfloat %in, bfloat addrspace(1) * %out
+ ret void
+}
+
+define void @test_arg_store_v2bf16(<2 x bfloat> %in, <2 x bfloat> addrspace(1)* %out) {
+; GCN-LABEL: test_arg_store_v2bf16:
+; GCN: ; %bb.0:
+; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GCN-NEXT: s_mov_b32 s7, 0xf000
+; GCN-NEXT: s_mov_b32 s6, 0
+; GCN-NEXT: v_cvt_f16_f32_e32 v1, v1
+; GCN-NEXT: s_mov_b32 s4, s6
+; GCN-NEXT: s_mov_b32 s5, s6
+; GCN-NEXT: v_lshlrev_b32_e32 v1, 16, v1
+; GCN-NEXT: v_cvt_f16_f32_e32 v0, v0
+; GCN-NEXT: v_or_b32_e32 v0, v0, v1
+; GCN-NEXT: buffer_store_dword v0, v[2:3], s[4:7], 0 addr64
+; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0)
+; GCN-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX7-LABEL: test_arg_store_v2bf16:
+; GFX7: ; %bb.0:
+; GFX7-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX7-NEXT: v_cvt_f16_f32_e32 v1, v1
+; GFX7-NEXT: v_cvt_f16_f32_e32 v0, v0
+; GFX7-NEXT: s_mov_b32 s6, 0
+; GFX7-NEXT: s_mov_b32 s7, 0xf000
+; GFX7-NEXT: v_lshlrev_b32_e32 v1, 16, v1
+; GFX7-NEXT: s_mov_b32 s4, s6
+; GFX7-NEXT: s_mov_b32 s5, s6
+; GFX7-NEXT: v_or_b32_e32 v0, v0, v1
+; GFX7-NEXT: buffer_store_dword v0, v[2:3], s[4:7], 0 addr64
+; GFX7-NEXT: s_waitcnt vmcnt(0)
+; GFX7-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX8-LABEL: test_arg_store_v2bf16:
+; GFX8: ; %bb.0:
+; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX8-NEXT: flat_store_dword v[1:2], v0
+; GFX8-NEXT: s_waitcnt vmcnt(0)
+; GFX8-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX9-LABEL: test_arg_store_v2bf16:
+; GFX9: ; %bb.0:
+; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-NEXT: global_store_dword v[1:2], v0, off
+; GFX9-NEXT: s_waitcnt vmcnt(0)
+; GFX9-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX10-LABEL: test_arg_store_v2bf16:
+; GFX10: ; %bb.0:
+; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT: global_store_dword v[1:2], v0, off
+; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT: s_setpc_b64 s[30:31]
+ store <2 x bfloat> %in, <2 x bfloat> addrspace(1) * %out
+ ret void
+}
+
+define void @test_arg_store_v4bf16(<4 x bfloat> %in, <4 x bfloat> addrspace(1)* %out) {
+; GCN-LABEL: test_arg_store_v4bf16:
+; GCN: ; %bb.0:
+; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GCN-NEXT: v_cvt_f16_f32_e32 v3, v3
+; GCN-NEXT: v_cvt_f16_f32_e32 v2, v2
+; GCN-NEXT: v_cvt_f16_f32_e32 v1, v1
+; GCN-NEXT: v_cvt_f16_f32_e32 v0, v0
+; GCN-NEXT: s_mov_b32 s6, 0
+; GCN-NEXT: v_lshlrev_b32_e32 v3, 16, v3
+; GCN-NEXT: v_lshlrev_b32_e32 v6, 16, v1
+; GCN-NEXT: v_or_b32_e32 v1, v2, v3
+; GCN-NEXT: v_or_b32_e32 v0, v0, v6
+; GCN-NEXT: s_mov_b32 s7, 0xf000
+; GCN-NEXT: s_mov_b32 s4, s6
+; GCN-NEXT: s_mov_b32 s5, s6
+; GCN-NEXT: buffer_store_dwordx2 v[0:1], v[4:5], s[4:7], 0 addr64
+; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0)
+; GCN-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX7-LABEL: test_arg_store_v4bf16:
+; GFX7: ; %bb.0:
+; GFX7-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX7-NEXT: v_cvt_f16_f32_e32 v3, v3
+; GFX7-NEXT: v_cvt_f16_f32_e32 v2, v2
+; GFX7-NEXT: v_cvt_f16_f32_e32 v6, v1
+; GFX7-NEXT: v_cvt_f16_f32_e32 v0, v0
+; GFX7-NEXT: v_lshlrev_b32_e32 v1, 16, v3
+; GFX7-NEXT: v_or_b32_e32 v1, v2, v1
+; GFX7-NEXT: v_lshlrev_b32_e32 v2, 16, v6
+; GFX7-NEXT: s_mov_b32 s6, 0
+; GFX7-NEXT: v_or_b32_e32 v0, v0, v2
+; GFX7-NEXT: s_mov_b32 s7, 0xf000
+; GFX7-NEXT: s_mov_b32 s4, s6
+; GFX7-NEXT: s_mov_b32 s5, s6
+; GFX7-NEXT: buffer_store_dwordx2 v[0:1], v[4:5], s[4:7], 0 addr64
+; GFX7-NEXT: s_waitcnt vmcnt(0)
+; GFX7-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX8-LABEL: test_arg_store_v4bf16:
+; GFX8: ; %bb.0:
+; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX8-NEXT: flat_store_dwordx2 v[2:3], v[0:1]
+; GFX8-NEXT: s_waitcnt vmcnt(0)
+; GFX8-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX9-LABEL: test_arg_store_v4bf16:
+; GFX9: ; %bb.0:
+; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-NEXT: global_store_dwordx2 v[2:3], v[0:1], off
+; GFX9-NEXT: s_waitcnt vmcnt(0)
+; GFX9-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX10-LABEL: test_arg_store_v4bf16:
+; GFX10: ; %bb.0:
+; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT: global_store_dwordx2 v[2:3], v[0:1], off
+; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT: s_setpc_b64 s[30:31]
+ store <4 x bfloat> %in, <4 x bfloat> addrspace(1) * %out
+ ret void
+}
+
+define void @test_arg_store_v8bf16(<8 x bfloat> %in, <8 x bfloat> addrspace(1)* %out) {
+; GCN-LABEL: test_arg_store_v8bf16:
+; GCN: ; %bb.0:
+; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GCN-NEXT: s_mov_b32 s7, 0xf000
+; GCN-NEXT: s_mov_b32 s6, 0
+; GCN-NEXT: v_cvt_f16_f32_e32 v7, v7
+; GCN-NEXT: v_cvt_f16_f32_e32 v6, v6
+; GCN-NEXT: v_cvt_f16_f32_e32 v5, v5
+; GCN-NEXT: v_cvt_f16_f32_e32 v4, v4
+; GCN-NEXT: v_cvt_f16_f32_e32 v3, v3
+; GCN-NEXT: v_cvt_f16_f32_e32 v10, v2
+; GCN-NEXT: v_cvt_f16_f32_e32 v1, v1
+; GCN-NEXT: v_cvt_f16_f32_e32 v0, v0
+; GCN-NEXT: s_mov_b32 s4, s6
+; GCN-NEXT: s_mov_b32 s5, s6
+; GCN-NEXT: v_lshlrev_b32_e32 v2, 16, v7
+; GCN-NEXT: v_lshlrev_b32_e32 v5, 16, v5
+; GCN-NEXT: v_lshlrev_b32_e32 v7, 16, v3
+; GCN-NEXT: v_lshlrev_b32_e32 v11, 16, v1
+; GCN-NEXT: v_or_b32_e32 v3, v6, v2
+; GCN-NEXT: v_or_b32_e32 v2, v4, v5
+; GCN-NEXT: v_or_b32_e32 v1, v10, v7
+; GCN-NEXT: v_or_b32_e32 v0, v0, v11
+; GCN-NEXT: buffer_store_dwordx4 v[0:3], v[8:9], s[4:7], 0 addr64
+; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0)
+; GCN-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX7-LABEL: test_arg_store_v8bf16:
+; GFX7: ; %bb.0:
+; GFX7-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX7-NEXT: v_cvt_f16_f32_e32 v7, v7
+; GFX7-NEXT: v_cvt_f16_f32_e32 v6, v6
+; GFX7-NEXT: v_cvt_f16_f32_e32 v10, v5
+; GFX7-NEXT: v_cvt_f16_f32_e32 v3, v3
+; GFX7-NEXT: v_cvt_f16_f32_e32 v1, v1
+; GFX7-NEXT: v_cvt_f16_f32_e32 v4, v4
+; GFX7-NEXT: v_cvt_f16_f32_e32 v2, v2
+; GFX7-NEXT: v_cvt_f16_f32_e32 v0, v0
+; GFX7-NEXT: v_lshlrev_b32_e32 v5, 16, v7
+; GFX7-NEXT: s_mov_b32 s6, 0
+; GFX7-NEXT: v_or_b32_e32 v5, v6, v5
+; GFX7-NEXT: v_lshlrev_b32_e32 v6, 16, v10
+; GFX7-NEXT: v_lshlrev_b32_e32 v3, 16, v3
+; GFX7-NEXT: v_lshlrev_b32_e32 v1, 16, v1
+; GFX7-NEXT: s_mov_b32 s7, 0xf000
+; GFX7-NEXT: s_mov_b32 s4, s6
+; GFX7-NEXT: s_mov_b32 s5, s6
+; GFX7-NEXT: v_or_b32_e32 v4, v4, v6
+; GFX7-NEXT: v_or_b32_e32 v3, v2, v3
+; GFX7-NEXT: v_or_b32_e32 v2, v0, v1
+; GFX7-NEXT: buffer_store_dwordx4 v[2:5], v[8:9], s[4:7], 0 addr64
+; GFX7-NEXT: s_waitcnt vmcnt(0)
+; GFX7-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX8-LABEL: test_arg_store_v8bf16:
+; GFX8: ; %bb.0:
+; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX8-NEXT: flat_store_dwordx4 v[4:5], v[0:3]
+; GFX8-NEXT: s_waitcnt vmcnt(0)
+; GFX8-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX9-LABEL: test_arg_store_v8bf16:
+; GFX9: ; %bb.0:
+; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-NEXT: global_store_dwordx4 v[4:5], v[0:3], off
+; GFX9-NEXT: s_waitcnt vmcnt(0)
+; GFX9-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX10-LABEL: test_arg_store_v8bf16:
+; GFX10: ; %bb.0:
+; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT: global_store_dwordx4 v[4:5], v[0:3], off
+; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT: s_setpc_b64 s[30:31]
+ store <8 x bfloat> %in, <8 x bfloat> addrspace(1) * %out
+ ret void
+}
+
+define void @test_arg_store_v16bf16(<16 x bfloat> %in, <16 x bfloat> addrspace(1)* %out) {
+; GCN-LABEL: test_arg_store_v16bf16:
+; GCN: ; %bb.0:
+; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GCN-NEXT: v_cvt_f16_f32_e32 v7, v7
+; GCN-NEXT: v_cvt_f16_f32_e32 v6, v6
+; GCN-NEXT: v_cvt_f16_f32_e32 v5, v5
+; GCN-NEXT: v_cvt_f16_f32_e32 v4, v4
+; GCN-NEXT: v_cvt_f16_f32_e32 v3, v3
+; GCN-NEXT: v_cvt_f16_f32_e32 v18, v2
+; GCN-NEXT: v_cvt_f16_f32_e32 v1, v1
+; GCN-NEXT: v_cvt_f16_f32_e32 v0, v0
+; GCN-NEXT: s_mov_b32 s7, 0xf000
+; GCN-NEXT: s_mov_b32 s6, 0
+; GCN-NEXT: v_cvt_f16_f32_e32 v2, v15
+; GCN-NEXT: v_cvt_f16_f32_e32 v14, v14
+; GCN-NEXT: v_cvt_f16_f32_e32 v13, v13
+; GCN-NEXT: v_cvt_f16_f32_e32 v12, v12
+; GCN-NEXT: v_cvt_f16_f32_e32 v11, v11
+; GCN-NEXT: v_cvt_f16_f32_e32 v10, v10
+; GCN-NEXT: v_cvt_f16_f32_e32 v9, v9
+; GCN-NEXT: v_cvt_f16_f32_e32 v8, v8
+; GCN-NEXT: v_lshlrev_b32_e32 v7, 16, v7
+; GCN-NEXT: v_lshlrev_b32_e32 v5, 16, v5
+; GCN-NEXT: v_lshlrev_b32_e32 v15, 16, v3
+; GCN-NEXT: v_lshlrev_b32_e32 v19, 16, v1
+; GCN-NEXT: s_mov_b32 s4, s6
+; GCN-NEXT: s_mov_b32 s5, s6
+; GCN-NEXT: v_lshlrev_b32_e32 v20, 16, v2
+; GCN-NEXT: v_lshlrev_b32_e32 v13, 16, v13
+; GCN-NEXT: v_lshlrev_b32_e32 v11, 16, v11
+; GCN-NEXT: v_lshlrev_b32_e32 v9, 16, v9
+; GCN-NEXT: v_or_b32_e32 v3, v6, v7
+; GCN-NEXT: v_or_b32_e32 v2, v4, v5
+; GCN-NEXT: v_or_b32_e32 v1, v18, v15
+; GCN-NEXT: v_or_b32_e32 v0, v0, v19
+; GCN-NEXT: v_or_b32_e32 v7, v14, v20
+; GCN-NEXT: v_or_b32_e32 v6, v12, v13
+; GCN-NEXT: v_or_b32_e32 v5, v10, v11
+; GCN-NEXT: v_or_b32_e32 v4, v8, v9
+; GCN-NEXT: buffer_store_dwordx4 v[4:7], v[16:17], s[4:7], 0 addr64 offset:16
+; GCN-NEXT: buffer_store_dwordx4 v[0:3], v[16:17], s[4:7], 0 addr64
+; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0)
+; GCN-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX7-LABEL: test_arg_store_v16bf16:
+; GFX7: ; %bb.0:
+; GFX7-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX7-NEXT: v_cvt_f16_f32_e32 v7, v7
+; GFX7-NEXT: v_cvt_f16_f32_e32 v3, v3
+; GFX7-NEXT: v_cvt_f16_f32_e32 v1, v1
+; GFX7-NEXT: v_cvt_f16_f32_e32 v6, v6
+; GFX7-NEXT: v_cvt_f16_f32_e32 v18, v5
+; GFX7-NEXT: v_cvt_f16_f32_e32 v2, v2
+; GFX7-NEXT: v_cvt_f16_f32_e32 v0, v0
+; GFX7-NEXT: v_cvt_f16_f32_e32 v4, v4
+; GFX7-NEXT: v_lshlrev_b32_e32 v5, 16, v7
+; GFX7-NEXT: v_lshlrev_b32_e32 v3, 16, v3
+; GFX7-NEXT: v_lshlrev_b32_e32 v1, 16, v1
+; GFX7-NEXT: v_or_b32_e32 v5, v6, v5
+; GFX7-NEXT: v_lshlrev_b32_e32 v6, 16, v18
+; GFX7-NEXT: v_or_b32_e32 v3, v2, v3
+; GFX7-NEXT: v_or_b32_e32 v2, v0, v1
+; GFX7-NEXT: v_cvt_f16_f32_e32 v0, v15
+; GFX7-NEXT: v_or_b32_e32 v4, v4, v6
+; GFX7-NEXT: v_cvt_f16_f32_e32 v1, v14
+; GFX7-NEXT: v_cvt_f16_f32_e32 v6, v13
+; GFX7-NEXT: v_cvt_f16_f32_e32 v7, v12
+; GFX7-NEXT: v_lshlrev_b32_e32 v0, 16, v0
+; GFX7-NEXT: v_or_b32_e32 v13, v1, v0
+; GFX7-NEXT: v_lshlrev_b32_e32 v0, 16, v6
+; GFX7-NEXT: v_or_b32_e32 v12, v7, v0
+; GFX7-NEXT: v_cvt_f16_f32_e32 v0, v11
+; GFX7-NEXT: v_cvt_f16_f32_e32 v1, v10
+; GFX7-NEXT: v_cvt_f16_f32_e32 v6, v9
+; GFX7-NEXT: v_cvt_f16_f32_e32 v7, v8
+; GFX7-NEXT: v_lshlrev_b32_e32 v0, 16, v0
+; GFX7-NEXT: s_mov_b32 s6, 0
+; GFX7-NEXT: v_or_b32_e32 v11, v1, v0
+; GFX7-NEXT: v_lshlrev_b32_e32 v0, 16, v6
+; GFX7-NEXT: s_mov_b32 s7, 0xf000
+; GFX7-NEXT: s_mov_b32 s4, s6
+; GFX7-NEXT: s_mov_b32 s5, s6
+; GFX7-NEXT: v_or_b32_e32 v10, v7, v0
+; GFX7-NEXT: buffer_store_dwordx4 v[10:13], v[16:17], s[4:7], 0 addr64 offset:16
+; GFX7-NEXT: buffer_store_dwordx4 v[2:5], v[16:17], s[4:7], 0 addr64
+; GFX7-NEXT: s_waitcnt vmcnt(0)
+; GFX7-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX8-LABEL: test_arg_store_v16bf16:
+; GFX8: ; %bb.0:
+; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX8-NEXT: flat_store_dwordx4 v[8:9], v[0:3]
+; GFX8-NEXT: s_nop 0
+; GFX8-NEXT: v_add_u32_e32 v0, vcc, 16, v8
+; GFX8-NEXT: v_addc_u32_e32 v1, vcc, 0, v9, vcc
+; GFX8-NEXT: flat_store_dwordx4 v[0:1], v[4:7]
+; GFX8-NEXT: s_waitcnt vmcnt(0)
+; GFX8-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX9-LABEL: test_arg_store_v16bf16:
+; GFX9: ; %bb.0:
+; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-NEXT: global_store_dwordx4 v[8:9], v[4:7], off offset:16
+; GFX9-NEXT: global_store_dwordx4 v[8:9], v[0:3], off
+; GFX9-NEXT: s_waitcnt vmcnt(0)
+; GFX9-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX10-LABEL: test_arg_store_v16bf16:
+; GFX10: ; %bb.0:
+; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT: global_store_dwordx4 v[8:9], v[4:7], off offset:16
+; GFX10-NEXT: global_store_dwordx4 v[8:9], v[0:3], off
+; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT: s_setpc_b64 s[30:31]
+ store <16 x bfloat> %in, <16 x bfloat> addrspace(1) * %out
+ ret void
+}
+
+define amdgpu_gfx void @test_inreg_arg_store(bfloat inreg %in, bfloat addrspace(1)* %out) {
+; GCN-LABEL: test_inreg_arg_store:
+; GCN: ; %bb.0:
+; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GCN-NEXT: s_mov_b32 s39, 0xf000
+; GCN-NEXT: s_mov_b32 s38, 0
+; GCN-NEXT: v_cvt_f16_f32_e32 v2, s4
+; GCN-NEXT: s_mov_b32 s36, s38
+; GCN-NEXT: s_mov_b32 s37, s38
+; GCN-NEXT: buffer_store_short v2, v[0:1], s[36:39], 0 addr64
+; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0)
+; GCN-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX7-LABEL: test_inreg_arg_store:
+; GFX7: ; %bb.0:
+; GFX7-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX7-NEXT: v_cvt_f16_f32_e32 v2, s4
+; GFX7-NEXT: s_mov_b32 s38, 0
+; GFX7-NEXT: s_mov_b32 s39, 0xf000
+; GFX7-NEXT: s_mov_b32 s36, s38
+; GFX7-NEXT: s_mov_b32 s37, s38
+; GFX7-NEXT: buffer_store_short v2, v[0:1], s[36:39], 0 addr64
+; GFX7-NEXT: s_waitcnt vmcnt(0)
+; GFX7-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX8-LABEL: test_inreg_arg_store:
+; GFX8: ; %bb.0:
+; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX8-NEXT: v_mov_b32_e32 v2, s4
+; GFX8-NEXT: flat_store_short v[0:1], v2
+; GFX8-NEXT: s_waitcnt vmcnt(0)
+; GFX8-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX9-LABEL: test_inreg_arg_store:
+; GFX9: ; %bb.0:
+; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-NEXT: v_mov_b32_e32 v2, s4
+; GFX9-NEXT: global_store_short v[0:1], v2, off
+; GFX9-NEXT: s_waitcnt vmcnt(0)
+; GFX9-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX10-LABEL: test_inreg_arg_store:
+; GFX10: ; %bb.0:
+; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT: v_mov_b32_e32 v2, s4
+; GFX10-NEXT: global_store_short v[0:1], v2, off
+; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT: s_setpc_b64 s[30:31]
+ store bfloat %in, bfloat addrspace(1) * %out
+ ret void
+}
+
+define void @test_bitcast_from_bfloat(bfloat addrspace(1)* %in, i16 addrspace(1)* %out) {
+; GCN-LABEL: test_bitcast_from_bfloat:
+; GCN: ; %bb.0:
+; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GCN-NEXT: s_mov_b32 s6, 0
+; GCN-NEXT: s_mov_b32 s7, 0xf000
+; GCN-NEXT: s_mov_b32 s4, s6
+; GCN-NEXT: s_mov_b32 s5, s6
+; GCN-NEXT: buffer_load_ushort v0, v[0:1], s[4:7], 0 addr64
+; GCN-NEXT: s_waitcnt vmcnt(0)
+; GCN-NEXT: buffer_store_short v0, v[2:3], s[4:7], 0 addr64
+; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0)
+; GCN-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX7-LABEL: test_bitcast_from_bfloat:
+; GFX7: ; %bb.0:
+; GFX7-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX7-NEXT: s_mov_b32 s6, 0
+; GFX7-NEXT: s_mov_b32 s7, 0xf000
+; GFX7-NEXT: s_mov_b32 s4, s6
+; GFX7-NEXT: s_mov_b32 s5, s6
+; GFX7-NEXT: buffer_load_ushort v0, v[0:1], s[4:7], 0 addr64
+; GFX7-NEXT: s_waitcnt vmcnt(0)
+; GFX7-NEXT: buffer_store_short v0, v[2:3], s[4:7], 0 addr64
+; GFX7-NEXT: s_waitcnt vmcnt(0)
+; GFX7-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX8-LABEL: test_bitcast_from_bfloat:
+; GFX8: ; %bb.0:
+; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX8-NEXT: flat_load_ushort v0, v[0:1]
+; GFX8-NEXT: s_waitcnt vmcnt(0)
+; GFX8-NEXT: flat_store_short v[2:3], v0
+; GFX8-NEXT: s_waitcnt vmcnt(0)
+; GFX8-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX9-LABEL: test_bitcast_from_bfloat:
+; GFX9: ; %bb.0:
+; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-NEXT: global_load_ushort v0, v[0:1], off
+; GFX9-NEXT: s_waitcnt vmcnt(0)
+; GFX9-NEXT: global_store_short v[2:3], v0, off
+; GFX9-NEXT: s_waitcnt vmcnt(0)
+; GFX9-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX10-LABEL: test_bitcast_from_bfloat:
+; GFX10: ; %bb.0:
+; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT: global_load_ushort v0, v[0:1], off
+; GFX10-NEXT: s_waitcnt vmcnt(0)
+; GFX10-NEXT: global_store_short v[2:3], v0, off
+; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT: s_setpc_b64 s[30:31]
+ %val = load bfloat, bfloat addrspace(1) * %in
+ %val_int = bitcast bfloat %val to i16
+ store i16 %val_int, i16 addrspace(1)* %out
+ ret void
+}
+
+define void @test_bitcast_to_bfloat(bfloat addrspace(1)* %out, i16 addrspace(1)* %in) {
+; GCN-LABEL: test_bitcast_to_bfloat:
+; GCN: ; %bb.0:
+; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GCN-NEXT: s_mov_b32 s6, 0
+; GCN-NEXT: s_mov_b32 s7, 0xf000
+; GCN-NEXT: s_mov_b32 s4, s6
+; GCN-NEXT: s_mov_b32 s5, s6
+; GCN-NEXT: buffer_load_ushort v2, v[2:3], s[4:7], 0 addr64
+; GCN-NEXT: s_waitcnt vmcnt(0)
+; GCN-NEXT: buffer_store_short v2, v[0:1], s[4:7], 0 addr64
+; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0)
+; GCN-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX7-LABEL: test_bitcast_to_bfloat:
+; GFX7: ; %bb.0:
+; GFX7-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX7-NEXT: s_mov_b32 s6, 0
+; GFX7-NEXT: s_mov_b32 s7, 0xf000
+; GFX7-NEXT: s_mov_b32 s4, s6
+; GFX7-NEXT: s_mov_b32 s5, s6
+; GFX7-NEXT: buffer_load_ushort v2, v[2:3], s[4:7], 0 addr64
+; GFX7-NEXT: s_waitcnt vmcnt(0)
+; GFX7-NEXT: buffer_store_short v2, v[0:1], s[4:7], 0 addr64
+; GFX7-NEXT: s_waitcnt vmcnt(0)
+; GFX7-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX8-LABEL: test_bitcast_to_bfloat:
+; GFX8: ; %bb.0:
+; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX8-NEXT: flat_load_ushort v2, v[2:3]
+; GFX8-NEXT: s_waitcnt vmcnt(0)
+; GFX8-NEXT: flat_store_short v[0:1], v2
+; GFX8-NEXT: s_waitcnt vmcnt(0)
+; GFX8-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX9-LABEL: test_bitcast_to_bfloat:
+; GFX9: ; %bb.0:
+; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-NEXT: global_load_ushort v2, v[2:3], off
+; GFX9-NEXT: s_waitcnt vmcnt(0)
+; GFX9-NEXT: global_store_short v[0:1], v2, off
+; GFX9-NEXT: s_waitcnt vmcnt(0)
+; GFX9-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX10-LABEL: test_bitcast_to_bfloat:
+; GFX10: ; %bb.0:
+; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT: global_load_ushort v2, v[2:3], off
+; GFX10-NEXT: s_waitcnt vmcnt(0)
+; GFX10-NEXT: global_store_short v[0:1], v2, off
+; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT: s_setpc_b64 s[30:31]
+ %val = load i16, i16 addrspace(1)* %in
+ %val_fp = bitcast i16 %val to bfloat
+ store bfloat %val_fp, bfloat addrspace(1)* %out
+ ret void
+}
+
+define bfloat @test_ret(bfloat %in) {
+; GCN-LABEL: test_ret:
+; GCN: ; %bb.0: ; %entry
+; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GCN-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX7-LABEL: test_ret:
+; GFX7: ; %bb.0: ; %entry
+; GFX7-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX7-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX8-LABEL: test_ret:
+; GFX8: ; %bb.0: ; %entry
+; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX8-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX9-LABEL: test_ret:
+; GFX9: ; %bb.0: ; %entry
+; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX10-LABEL: test_ret:
+; GFX10: ; %bb.0: ; %entry
+; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT: s_setpc_b64 s[30:31]
+entry:
+ ret bfloat %in
+}
+
+define bfloat @test_alloca_load_store_ret(bfloat %in) {
+; GCN-LABEL: test_alloca_load_store_ret:
+; GCN: ; %bb.0: ; %entry
+; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GCN-NEXT: v_cvt_f16_f32_e32 v0, v0
+; GCN-NEXT: buffer_store_short v0, off, s[0:3], s32
+; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0)
+; GCN-NEXT: buffer_load_ushort v0, off, s[0:3], s32 glc
+; GCN-NEXT: s_waitcnt vmcnt(0)
+; GCN-NEXT: v_cvt_f32_f16_e32 v0, v0
+; GCN-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX7-LABEL: test_alloca_load_store_ret:
+; GFX7: ; %bb.0: ; %entry
+; GFX7-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX7-NEXT: v_cvt_f16_f32_e32 v0, v0
+; GFX7-NEXT: buffer_store_short v0, off, s[0:3], s32
+; GFX7-NEXT: s_waitcnt vmcnt(0)
+; GFX7-NEXT: buffer_load_ushort v0, off, s[0:3], s32 glc
+; GFX7-NEXT: s_waitcnt vmcnt(0)
+; GFX7-NEXT: v_cvt_f32_f16_e32 v0, v0
+; GFX7-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX8-LABEL: test_alloca_load_store_ret:
+; GFX8: ; %bb.0: ; %entry
+; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX8-NEXT: buffer_store_short v0, off, s[0:3], s32
+; GFX8-NEXT: s_waitcnt vmcnt(0)
+; GFX8-NEXT: buffer_load_ushort v0, off, s[0:3], s32 glc
+; GFX8-NEXT: s_waitcnt vmcnt(0)
+; GFX8-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX9-LABEL: test_alloca_load_store_ret:
+; GFX9: ; %bb.0: ; %entry
+; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-NEXT: buffer_store_short v0, off, s[0:3], s32
+; GFX9-NEXT: s_waitcnt vmcnt(0)
+; GFX9-NEXT: buffer_load_ushort v0, off, s[0:3], s32 glc
+; GFX9-NEXT: s_waitcnt vmcnt(0)
+; GFX9-NEXT: s_setpc_b64 s[30:31]
+;
+; GFX10-LABEL: test_alloca_load_store_ret:
+; GFX10: ; %bb.0: ; %entry
+; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT: buffer_store_short v0, off, s[0:3], s32
+; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
+; GFX10-NEXT: buffer_load_ushort v0, off, s[0:3], s32 glc dlc
+; GFX10-NEXT: s_waitcnt vmcnt(0)
+; GFX10-NEXT: s_setpc_b64 s[30:31]
+entry:
+ %in.addr = alloca bfloat, align 2, addrspace(5)
+ store volatile bfloat %in, bfloat addrspace(5)* %in.addr, align 2
+ %0 = load volatile bfloat, bfloat addrspace(5)* %in.addr, align 2
+ ret bfloat %0
+}
+
Index: llvm/test/CodeGen/AMDGPU/bf16-ops.ll
===================================================================
--- /dev/null
+++ llvm/test/CodeGen/AMDGPU/bf16-ops.ll
@@ -0,0 +1,32 @@
+; RUN: not llc < %s -march=amdgcn -mcpu=hawaii -verify-machineinstrs
+; RUN: not llc < %s -march=amdgcn -mcpu=tonga -verify-machineinstrs
+; RUN: not llc < %s -march=amdgcn -mcpu=gfx900 -verify-machineinstrs
+; RUN: not llc < %s -march=amdgcn -mcpu=gfx1010 -verify-machineinstrs
+
+; TODO: Add GlobalISel tests, currently it silently miscompiles as GISel does not handle BF16 at all.
+
+; We only have storage-only BF16 support so check codegen fails if we attempt to do operations on bfloats.
+
+define void @test_fneg(bfloat %a, bfloat addrspace(1)* %out) {
+ %result = fneg bfloat %a
+ store bfloat %result, bfloat addrspace(1) * %out
+ ret void
+}
+
+define void @test_fabs(bfloat %a, bfloat addrspace(1)* %out) {
+ %result = fabs bfloat %a
+ store bfloat %result, bfloat addrspace(1) * %out
+ ret void
+}
+
+define void @test_add(bfloat %a, bfloat %b, bfloat addrspace(1)* %out) {
+ %result = fadd bfloat %a, %b
+ store bfloat %result, bfloat addrspace(1) * %out
+ ret void
+}
+
+define void @test_mul(bfloat %a, bfloat %b, bfloat addrspace(1)* %out) {
+ %result = fmul bfloat %a, %b
+ store bfloat %result, bfloat addrspace(1) * %out
+ ret void
+}
Index: llvm/lib/Target/AMDGPU/VOP3PInstructions.td
===================================================================
--- llvm/lib/Target/AMDGPU/VOP3PInstructions.td
+++ llvm/lib/Target/AMDGPU/VOP3PInstructions.td
@@ -161,9 +161,9 @@
// because dealing with the write to high half of the register is
// difficult.
def : GCNPat <
- (build_vector f16:$elt0, (fpround (fma_like (f32 (VOP3PMadMixMods f16:$src0, i32:$src0_modifiers)),
- (f32 (VOP3PMadMixMods f16:$src1, i32:$src1_modifiers)),
- (f32 (VOP3PMadMixMods f16:$src2, i32:$src2_modifiers))))),
+ (build_vector f16:$elt0, (f16 (fpround (fma_like (f32 (VOP3PMadMixMods f16:$src0, i32:$src0_modifiers)),
+ (f32 (VOP3PMadMixMods f16:$src1, i32:$src1_modifiers)),
+ (f32 (VOP3PMadMixMods f16:$src2, i32:$src2_modifiers)))))),
(v2f16 (mixhi_inst $src0_modifiers, $src0,
$src1_modifiers, $src1,
$src2_modifiers, $src2,
@@ -174,9 +174,9 @@
def : GCNPat <
(build_vector
f16:$elt0,
- (AMDGPUclamp (fpround (fma_like (f32 (VOP3PMadMixMods f16:$src0, i32:$src0_modifiers)),
- (f32 (VOP3PMadMixMods f16:$src1, i32:$src1_modifiers)),
- (f32 (VOP3PMadMixMods f16:$src2, i32:$src2_modifiers)))))),
+ (AMDGPUclamp (f16 (fpround (fma_like (f32 (VOP3PMadMixMods f16:$src0, i32:$src0_modifiers)),
+ (f32 (VOP3PMadMixMods f16:$src1, i32:$src1_modifiers)),
+ (f32 (VOP3PMadMixMods f16:$src2, i32:$src2_modifiers))))))),
(v2f16 (mixhi_inst $src0_modifiers, $src0,
$src1_modifiers, $src1,
$src2_modifiers, $src2,
@@ -186,12 +186,12 @@
def : GCNPat <
(AMDGPUclamp (build_vector
- (fpround (fma_like (f32 (VOP3PMadMixMods f16:$lo_src0, i32:$lo_src0_modifiers)),
- (f32 (VOP3PMadMixMods f16:$lo_src1, i32:$lo_src1_modifiers)),
- (f32 (VOP3PMadMixMods f16:$lo_src2, i32:$lo_src2_modifiers)))),
- (fpround (fma_like (f32 (VOP3PMadMixMods f16:$hi_src0, i32:$hi_src0_modifiers)),
- (f32 (VOP3PMadMixMods f16:$hi_src1, i32:$hi_src1_modifiers)),
- (f32 (VOP3PMadMixMods f16:$hi_src2, i32:$hi_src2_modifiers)))))),
+ (f16 (fpround (fma_like (f32 (VOP3PMadMixMods f16:$lo_src0, i32:$lo_src0_modifiers)),
+ (f32 (VOP3PMadMixMods f16:$lo_src1, i32:$lo_src1_modifiers)),
+ (f32 (VOP3PMadMixMods f16:$lo_src2, i32:$lo_src2_modifiers))))),
+ (f16 (fpround (fma_like (f32 (VOP3PMadMixMods f16:$hi_src0, i32:$hi_src0_modifiers)),
+ (f32 (VOP3PMadMixMods f16:$hi_src1, i32:$hi_src1_modifiers)),
+ (f32 (VOP3PMadMixMods f16:$hi_src2, i32:$hi_src2_modifiers))))))),
(v2f16 (mixhi_inst $hi_src0_modifiers, $hi_src0,
$hi_src1_modifiers, $hi_src1,
$hi_src2_modifiers, $hi_src2,
Index: llvm/lib/Target/AMDGPU/SIRegisterInfo.td
===================================================================
--- llvm/lib/Target/AMDGPU/SIRegisterInfo.td
+++ llvm/lib/Target/AMDGPU/SIRegisterInfo.td
@@ -390,7 +390,7 @@
// TODO: Do we need to set DwarfRegAlias on register tuples?
-def SGPR_LO16 : SIRegisterClass<"AMDGPU", [i16, f16], 16,
+def SGPR_LO16 : SIRegisterClass<"AMDGPU", [i16, f16, bf16], 16,
(add (sequence "SGPR%u_LO16", 0, 105))> {
let AllocationPriority = 0;
let Size = 16;
@@ -398,7 +398,7 @@
let HasSGPR = 1;
}
-def SGPR_HI16 : SIRegisterClass<"AMDGPU", [i16, f16], 16,
+def SGPR_HI16 : SIRegisterClass<"AMDGPU", [i16, f16, bf16], 16,
(add (sequence "SGPR%u_HI16", 0, 105))> {
let isAllocatable = 0;
let Size = 16;
@@ -407,7 +407,7 @@
}
// SGPR 32-bit registers
-def SGPR_32 : SIRegisterClass<"AMDGPU", [i32, f32, i16, f16, v2i16, v2f16], 32,
+def SGPR_32 : SIRegisterClass<"AMDGPU", [i32, f32, i16, f16, bf16, v2i16, v2f16, v2bf16], 32,
(add (sequence "SGPR%u", 0, 105))> {
// Give all SGPR classes higher priority than VGPR classes, because
// we want to spill SGPRs to VGPRs.
@@ -589,8 +589,8 @@
list<ValueType> types = reg_types;
}
-def Reg16Types : RegisterTypes<[i16, f16]>;
-def Reg32Types : RegisterTypes<[i32, f32, v2i16, v2f16, p2, p3, p5, p6]>;
+def Reg16Types : RegisterTypes<[i16, f16, bf16]>;
+def Reg32Types : RegisterTypes<[i32, f32, v2i16, v2f16, v2bf16, p2, p3, p5, p6]>;
let HasVGPR = 1 in {
def VGPR_LO16 : SIRegisterClass<"AMDGPU", Reg16Types.types, 16,
@@ -725,14 +725,14 @@
// Register classes used as source and destination
//===----------------------------------------------------------------------===//
-def Pseudo_SReg_32 : SIRegisterClass<"AMDGPU", [i32, f32, i16, f16, v2i16, v2f16], 32,
+def Pseudo_SReg_32 : SIRegisterClass<"AMDGPU", [i32, f32, i16, f16, bf16, v2i16, v2f16, v2bf16], 32,
(add FP_REG, SP_REG)> {
let isAllocatable = 0;
let CopyCost = -1;
let HasSGPR = 1;
}
-def Pseudo_SReg_128 : SIRegisterClass<"AMDGPU", [v4i32, v2i64, v2f64, v8i16, v8f16], 32,
+def Pseudo_SReg_128 : SIRegisterClass<"AMDGPU", [v4i32, v2i64, v2f64, v8i16, v8f16, v8bf16], 32,
(add PRIVATE_RSRC_REG)> {
let isAllocatable = 0;
let CopyCost = -1;
@@ -748,7 +748,7 @@
let GeneratePressureSet = 0, HasSGPR = 1 in {
// Subset of SReg_32 without M0 for SMRD instructions and alike.
// See comments in SIInstructions.td for more info.
-def SReg_32_XM0_XEXEC : SIRegisterClass<"AMDGPU", [i32, f32, i16, f16, v2i16, v2f16, i1], 32,
+def SReg_32_XM0_XEXEC : SIRegisterClass<"AMDGPU", [i32, f32, i16, f16, bf16, v2i16, v2f16, v2bf16, i1], 32,
(add SGPR_32, VCC_LO, VCC_HI, FLAT_SCR_LO, FLAT_SCR_HI, XNACK_MASK_LO, XNACK_MASK_HI,
SGPR_NULL, SGPR_NULL_HI, TTMP_32, TMA_LO, TMA_HI, TBA_LO, TBA_HI, SRC_SHARED_BASE_LO,
SRC_SHARED_LIMIT_LO, SRC_PRIVATE_BASE_LO, SRC_PRIVATE_LIMIT_LO, SRC_SHARED_BASE_HI,
@@ -757,7 +757,7 @@
let AllocationPriority = 0;
}
-def SReg_LO16_XM0_XEXEC : SIRegisterClass<"AMDGPU", [i16, f16], 16,
+def SReg_LO16_XM0_XEXEC : SIRegisterClass<"AMDGPU", [i16, f16, bf16], 16,
(add SGPR_LO16, VCC_LO_LO16, VCC_HI_LO16, FLAT_SCR_LO_LO16, FLAT_SCR_HI_LO16,
XNACK_MASK_LO_LO16, XNACK_MASK_HI_LO16, SGPR_NULL_LO16, SGPR_NULL_HI_LO16, TTMP_LO16,
TMA_LO_LO16, TMA_HI_LO16, TBA_LO_LO16, TBA_HI_LO16, SRC_SHARED_BASE_LO_LO16,
@@ -769,29 +769,29 @@
let AllocationPriority = 0;
}
-def SReg_32_XEXEC_HI : SIRegisterClass<"AMDGPU", [i32, f32, i16, f16, v2i16, v2f16, i1], 32,
+def SReg_32_XEXEC_HI : SIRegisterClass<"AMDGPU", [i32, f32, i16, f16, bf16, v2i16, v2f16, v2bf16, i1], 32,
(add SReg_32_XM0_XEXEC, EXEC_LO, M0_CLASS)> {
let AllocationPriority = 0;
}
-def SReg_LO16_XEXEC_HI : SIRegisterClass<"AMDGPU", [i16, f16], 16,
+def SReg_LO16_XEXEC_HI : SIRegisterClass<"AMDGPU", [i16, f16, bf16], 16,
(add SReg_LO16_XM0_XEXEC, EXEC_LO_LO16, M0_CLASS_LO16)> {
let Size = 16;
let AllocationPriority = 0;
}
-def SReg_32_XM0 : SIRegisterClass<"AMDGPU", [i32, f32, i16, f16, v2i16, v2f16, i1], 32,
+def SReg_32_XM0 : SIRegisterClass<"AMDGPU", [i32, f32, i16, f16, bf16, v2i16, v2f16, v2bf16, i1], 32,
(add SReg_32_XM0_XEXEC, EXEC_LO, EXEC_HI)> {
let AllocationPriority = 0;
}
-def SReg_LO16_XM0 : SIRegisterClass<"AMDGPU", [i16, f16], 16,
+def SReg_LO16_XM0 : SIRegisterClass<"AMDGPU", [i16, f16, bf16], 16,
(add SReg_LO16_XM0_XEXEC, EXEC_LO_LO16, EXEC_HI_LO16)> {
let Size = 16;
let AllocationPriority = 0;
}
-def SReg_LO16 : SIRegisterClass<"AMDGPU", [i16, f16], 16,
+def SReg_LO16 : SIRegisterClass<"AMDGPU", [i16, f16, bf16], 16,
(add SGPR_LO16, SReg_LO16_XM0, M0_CLASS_LO16, EXEC_LO_LO16, EXEC_HI_LO16, SReg_LO16_XEXEC_HI)> {
let Size = 16;
let AllocationPriority = 0;
@@ -799,33 +799,33 @@
} // End GeneratePressureSet = 0
// Register class for all scalar registers (SGPRs + Special Registers)
-def SReg_32 : SIRegisterClass<"AMDGPU", [i32, f32, i16, f16, v2i16, v2f16, i1], 32,
+def SReg_32 : SIRegisterClass<"AMDGPU", [i32, f32, i16, f16, bf16, v2i16, v2f16, v2bf16, i1], 32,
(add SReg_32_XM0, M0_CLASS, EXEC_LO, EXEC_HI, SReg_32_XEXEC_HI)> {
let AllocationPriority = 0;
let HasSGPR = 1;
}
let GeneratePressureSet = 0 in {
-def SRegOrLds_32 : SIRegisterClass<"AMDGPU", [i32, f32, i16, f16, v2i16, v2f16], 32,
+def SRegOrLds_32 : SIRegisterClass<"AMDGPU", [i32, f32, i16, f16, bf16, v2i16, v2f16, v2bf16], 32,
(add SReg_32, LDS_DIRECT_CLASS)> {
let isAllocatable = 0;
let HasSGPR = 1;
}
-def SGPR_64 : SIRegisterClass<"AMDGPU", [v2i32, i64, v2f32, f64, v4i16, v4f16], 32,
+def SGPR_64 : SIRegisterClass<"AMDGPU", [v2i32, i64, v2f32, f64, v4i16, v4f16, v4bf16], 32,
(add SGPR_64Regs)> {
let CopyCost = 1;
let AllocationPriority = 1;
let HasSGPR = 1;
}
-def TTMP_64 : SIRegisterClass<"AMDGPU", [v2i32, i64, f64, v4i16, v4f16], 32,
+def TTMP_64 : SIRegisterClass<"AMDGPU", [v2i32, i64, f64, v4i16, v4f16, v4bf16], 32,
(add TTMP_64Regs)> {
let isAllocatable = 0;
let HasSGPR = 1;
}
-def SReg_64_XEXEC : SIRegisterClass<"AMDGPU", [v2i32, i64, v2f32, f64, i1, v4i16, v4f16], 32,
+def SReg_64_XEXEC : SIRegisterClass<"AMDGPU", [v2i32, i64, v2f32, f64, i1, v4i16, v4f16, v4bf16], 32,
(add SGPR_64, VCC, FLAT_SCR, XNACK_MASK, SGPR_NULL64, SRC_SHARED_BASE,
SRC_SHARED_LIMIT, SRC_PRIVATE_BASE, SRC_PRIVATE_LIMIT, TTMP_64, TBA, TMA)> {
let CopyCost = 1;
@@ -833,7 +833,7 @@
let HasSGPR = 1;
}
-def SReg_64 : SIRegisterClass<"AMDGPU", [v2i32, i64, v2f32, f64, i1, v4i16, v4f16], 32,
+def SReg_64 : SIRegisterClass<"AMDGPU", [v2i32, i64, v2f32, f64, i1, v4i16, v4f16, v4bf16], 32,
(add SReg_64_XEXEC, EXEC)> {
let CopyCost = 1;
let AllocationPriority = 1;
@@ -901,7 +901,7 @@
defm "" : SRegClass<32, [v32i32, v32f32, v16i64, v16f64], SGPR_1024Regs>;
}
-def VRegOrLds_32 : SIRegisterClass<"AMDGPU", [i32, f32, i16, f16, v2i16, v2f16], 32,
+def VRegOrLds_32 : SIRegisterClass<"AMDGPU", [i32, f32, i16, f16, bf16, v2i16, v2f16, v2bf16], 32,
(add VGPR_32, LDS_DIRECT_CLASS)> {
let isAllocatable = 0;
let HasVGPR = 1;
@@ -930,15 +930,15 @@
}
}
-defm VReg_64 : VRegClass<2, [i64, f64, v2i32, v2f32, v4f16, v4i16, p0, p1, p4],
+defm VReg_64 : VRegClass<2, [i64, f64, v2i32, v2f32, v4f16, v4bf16, v4i16, p0, p1, p4],
(add VGPR_64)>;
defm VReg_96 : VRegClass<3, [v3i32, v3f32], (add VGPR_96)>;
-defm VReg_128 : VRegClass<4, [v4i32, v4f32, v2i64, v2f64, v8i16, v8f16], (add VGPR_128)>;
+defm VReg_128 : VRegClass<4, [v4i32, v4f32, v2i64, v2f64, v8i16, v8f16, v8bf16], (add VGPR_128)>;
defm VReg_160 : VRegClass<5, [v5i32, v5f32], (add VGPR_160)>;
defm VReg_192 : VRegClass<6, [v6i32, v6f32, v3i64, v3f64], (add VGPR_192)>;
defm VReg_224 : VRegClass<7, [v7i32, v7f32], (add VGPR_224)>;
-defm VReg_256 : VRegClass<8, [v8i32, v8f32, v4i64, v4f64, v16i16, v16f16], (add VGPR_256)>;
+defm VReg_256 : VRegClass<8, [v8i32, v8f32, v4i64, v4f64, v16i16, v16f16, v16bf16], (add VGPR_256)>;
defm VReg_288 : VRegClass<9, [v9i32, v9f32], (add VGPR_288)>;
defm VReg_320 : VRegClass<10, [v10i32, v10f32], (add VGPR_320)>;
defm VReg_352 : VRegClass<11, [v11i32, v11f32], (add VGPR_352)>;
@@ -989,14 +989,14 @@
let HasVGPR = 1;
}
-def VS_32 : SIRegisterClass<"AMDGPU", [i32, f32, i16, f16, v2i16, v2f16], 32,
+def VS_32 : SIRegisterClass<"AMDGPU", [i32, f32, i16, f16, bf16, v2i16, v2f16, v2bf16], 32,
(add VGPR_32, SReg_32, LDS_DIRECT_CLASS)> {
let isAllocatable = 0;
let HasVGPR = 1;
let HasSGPR = 1;
}
-def VS_32_Lo128 : SIRegisterClass<"AMDGPU", [i32, f32, i16, f16, v2i16, v2f16], 32,
+def VS_32_Lo128 : SIRegisterClass<"AMDGPU", [i32, f32, i16, f16, bf16, v2i16, v2f16, v2bf16], 32,
(add VGPR_32_Lo128, SReg_32, LDS_DIRECT_CLASS)> {
let isAllocatable = 0;
let HasVGPR = 1;
Index: llvm/lib/Target/AMDGPU/SIInstructions.td
===================================================================
--- llvm/lib/Target/AMDGPU/SIInstructions.td
+++ llvm/lib/Target/AMDGPU/SIInstructions.td
@@ -1427,6 +1427,8 @@
def : BitConvert <f16, i16, VGPR_32>;
def : BitConvert <i16, f16, SReg_32>;
def : BitConvert <f16, i16, SReg_32>;
+def : BitConvert <bf16, i16, VGPR_32>;
+def : BitConvert <i16, bf16, SReg_32>;
// 32-bit bitcast
def : BitConvert <i32, f32, VGPR_32>;
Index: llvm/lib/Target/AMDGPU/SIISelLowering.cpp
===================================================================
--- llvm/lib/Target/AMDGPU/SIISelLowering.cpp
+++ llvm/lib/Target/AMDGPU/SIISelLowering.cpp
@@ -144,16 +144,21 @@
if (Subtarget->has16BitInsts()) {
addRegisterClass(MVT::i16, &AMDGPU::SReg_32RegClass);
addRegisterClass(MVT::f16, &AMDGPU::SReg_32RegClass);
+ addRegisterClass(MVT::bf16, &AMDGPU::SReg_32RegClass);
// Unless there are also VOP3P operations, not operations are really legal.
addRegisterClass(MVT::v2i16, &AMDGPU::SReg_32RegClass);
addRegisterClass(MVT::v2f16, &AMDGPU::SReg_32RegClass);
+ addRegisterClass(MVT::v2bf16, &AMDGPU::SReg_32RegClass);
addRegisterClass(MVT::v4i16, &AMDGPU::SReg_64RegClass);
addRegisterClass(MVT::v4f16, &AMDGPU::SReg_64RegClass);
+ addRegisterClass(MVT::v4bf16, &AMDGPU::SReg_64RegClass);
addRegisterClass(MVT::v8i16, &AMDGPU::SGPR_128RegClass);
addRegisterClass(MVT::v8f16, &AMDGPU::SGPR_128RegClass);
+ addRegisterClass(MVT::v8bf16, &AMDGPU::SGPR_128RegClass);
addRegisterClass(MVT::v16i16, &AMDGPU::SGPR_256RegClass);
addRegisterClass(MVT::v16f16, &AMDGPU::SGPR_256RegClass);
+ addRegisterClass(MVT::v16bf16, &AMDGPU::SGPR_256RegClass);
}
addRegisterClass(MVT::v32i32, &AMDGPU::VReg_1024RegClass);
@@ -256,13 +261,13 @@
// We only support LOAD/STORE and vector manipulation ops for vectors
// with > 4 elements.
for (MVT VT :
- {MVT::v8i32, MVT::v8f32, MVT::v9i32, MVT::v9f32, MVT::v10i32,
- MVT::v10f32, MVT::v11i32, MVT::v11f32, MVT::v12i32, MVT::v12f32,
- MVT::v16i32, MVT::v16f32, MVT::v2i64, MVT::v2f64, MVT::v4i16,
- MVT::v4f16, MVT::v3i64, MVT::v3f64, MVT::v6i32, MVT::v6f32,
- MVT::v4i64, MVT::v4f64, MVT::v8i64, MVT::v8f64, MVT::v8i16,
- MVT::v8f16, MVT::v16i16, MVT::v16f16, MVT::v16i64, MVT::v16f64,
- MVT::v32i32, MVT::v32f32}) {
+ {MVT::v8i32, MVT::v8f32, MVT::v9i32, MVT::v9f32, MVT::v10i32,
+ MVT::v10f32, MVT::v11i32, MVT::v11f32, MVT::v12i32, MVT::v12f32,
+ MVT::v16i32, MVT::v16f32, MVT::v2i64, MVT::v2f64, MVT::v4i16,
+ MVT::v4f16, MVT::v4bf16, MVT::v3i64, MVT::v3f64, MVT::v6i32,
+ MVT::v6f32, MVT::v4i64, MVT::v4f64, MVT::v8i64, MVT::v8f64,
+ MVT::v8i16, MVT::v8f16, MVT::v16i16, MVT::v16f16, MVT::v16bf16,
+ MVT::v16i64, MVT::v16f64, MVT::v32i32, MVT::v32f32}) {
for (unsigned Op = 0; Op < ISD::BUILTIN_OP_END; ++Op) {
switch (Op) {
case ISD::LOAD:
@@ -475,6 +480,9 @@
setOperationAction({ISD::FSIN, ISD::FCOS, ISD::FDIV}, MVT::f32, Custom);
setOperationAction(ISD::FDIV, MVT::f64, Custom);
+ setOperationAction(ISD::BF16_TO_FP, MVT::i16, Custom);
+ setOperationAction(ISD::FP_TO_BF16, MVT::i16, Custom);
+
if (Subtarget->has16BitInsts()) {
setOperationAction({ISD::Constant, ISD::SMIN, ISD::SMAX, ISD::UMIN,
ISD::UMAX, ISD::UADDSAT, ISD::USUBSAT},
@@ -502,6 +510,15 @@
setOperationAction({ISD::FP_TO_SINT, ISD::FP_TO_UINT}, MVT::i16, Custom);
+ // BF16 - Constant Actions.
+ setOperationAction(ISD::ConstantFP, MVT::bf16, Legal);
+
+ // BF16 - Load/store Actions.
+ setOperationAction(ISD::LOAD, MVT::bf16, Promote);
+ AddPromotedToType(ISD::LOAD, MVT::bf16, MVT::i16);
+ setOperationAction(ISD::STORE, MVT::bf16, Promote);
+ AddPromotedToType(ISD::STORE, MVT::bf16, MVT::i16);
+
// F16 - Constant Actions.
setOperationAction(ISD::ConstantFP, MVT::f16, Legal);
@@ -571,11 +588,15 @@
AddPromotedToType(ISD::STORE, MVT::v2i16, MVT::i32);
setOperationAction(ISD::STORE, MVT::v2f16, Promote);
AddPromotedToType(ISD::STORE, MVT::v2f16, MVT::i32);
+ setOperationAction(ISD::STORE, MVT::v2bf16, Promote);
+ AddPromotedToType(ISD::STORE, MVT::v2bf16, MVT::i32);
setOperationAction(ISD::LOAD, MVT::v2i16, Promote);
AddPromotedToType(ISD::LOAD, MVT::v2i16, MVT::i32);
setOperationAction(ISD::LOAD, MVT::v2f16, Promote);
AddPromotedToType(ISD::LOAD, MVT::v2f16, MVT::i32);
+ setOperationAction(ISD::LOAD, MVT::v2bf16, Promote);
+ AddPromotedToType(ISD::LOAD, MVT::v2bf16, MVT::i32);
setOperationAction(ISD::AND, MVT::v2i16, Promote);
AddPromotedToType(ISD::AND, MVT::v2i16, MVT::i32);
@@ -588,36 +609,50 @@
AddPromotedToType(ISD::LOAD, MVT::v4i16, MVT::v2i32);
setOperationAction(ISD::LOAD, MVT::v4f16, Promote);
AddPromotedToType(ISD::LOAD, MVT::v4f16, MVT::v2i32);
+ setOperationAction(ISD::LOAD, MVT::v4bf16, Promote);
+ AddPromotedToType(ISD::LOAD, MVT::v4bf16, MVT::v2i32);
setOperationAction(ISD::STORE, MVT::v4i16, Promote);
AddPromotedToType(ISD::STORE, MVT::v4i16, MVT::v2i32);
setOperationAction(ISD::STORE, MVT::v4f16, Promote);
AddPromotedToType(ISD::STORE, MVT::v4f16, MVT::v2i32);
+ setOperationAction(ISD::STORE, MVT::v4bf16, Promote);
+ AddPromotedToType(ISD::STORE, MVT::v4bf16, MVT::v2i32);
setOperationAction(ISD::LOAD, MVT::v8i16, Promote);
AddPromotedToType(ISD::LOAD, MVT::v8i16, MVT::v4i32);
setOperationAction(ISD::LOAD, MVT::v8f16, Promote);
AddPromotedToType(ISD::LOAD, MVT::v8f16, MVT::v4i32);
+ setOperationAction(ISD::LOAD, MVT::v8bf16, Promote);
+ AddPromotedToType(ISD::LOAD, MVT::v8bf16, MVT::v4i32);
setOperationAction(ISD::STORE, MVT::v4i16, Promote);
AddPromotedToType(ISD::STORE, MVT::v4i16, MVT::v2i32);
setOperationAction(ISD::STORE, MVT::v4f16, Promote);
AddPromotedToType(ISD::STORE, MVT::v4f16, MVT::v2i32);
+ setOperationAction(ISD::STORE, MVT::v4bf16, Promote);
+ AddPromotedToType(ISD::STORE, MVT::v4bf16, MVT::v2i32);
setOperationAction(ISD::STORE, MVT::v8i16, Promote);
AddPromotedToType(ISD::STORE, MVT::v8i16, MVT::v4i32);
setOperationAction(ISD::STORE, MVT::v8f16, Promote);
AddPromotedToType(ISD::STORE, MVT::v8f16, MVT::v4i32);
+ setOperationAction(ISD::STORE, MVT::v8bf16, Promote);
+ AddPromotedToType(ISD::STORE, MVT::v8bf16, MVT::v4i32);
setOperationAction(ISD::LOAD, MVT::v16i16, Promote);
AddPromotedToType(ISD::LOAD, MVT::v16i16, MVT::v8i32);
setOperationAction(ISD::LOAD, MVT::v16f16, Promote);
AddPromotedToType(ISD::LOAD, MVT::v16f16, MVT::v8i32);
+ setOperationAction(ISD::LOAD, MVT::v16bf16, Promote);
+ AddPromotedToType(ISD::LOAD, MVT::v16bf16, MVT::v8i32);
setOperationAction(ISD::STORE, MVT::v16i16, Promote);
AddPromotedToType(ISD::STORE, MVT::v16i16, MVT::v8i32);
setOperationAction(ISD::STORE, MVT::v16f16, Promote);
AddPromotedToType(ISD::STORE, MVT::v16f16, MVT::v8i32);
+ setOperationAction(ISD::STORE, MVT::v16bf16, Promote);
+ AddPromotedToType(ISD::STORE, MVT::v16bf16, MVT::v8i32);
setOperationAction({ISD::ANY_EXTEND, ISD::ZERO_EXTEND, ISD::SIGN_EXTEND},
MVT::v2i32, Expand);
@@ -4780,6 +4815,21 @@
return lowerXMUL_LOHI(Op, DAG);
case ISD::DYNAMIC_STACKALLOC:
return LowerDYNAMIC_STACKALLOC(Op, DAG);
+ case ISD::BF16_TO_FP: {
+ // When we don't have 16 bit instructions, bf16 is illegal and gets
+ // softened to i16 for storage, with float being used for arithmetic.
+ //
+ // After softening, some i16 -> fp32 bf16_to_fp operations can be left over.
+ // Lower those to (f32 (fp_extend (f16 (bitconvert x))))
+ if (!Op->getValueType(0).isFloatingPoint() ||
+ Op->getOperand(0).getValueType() != MVT::i16)
+ break;
+
+ SDLoc SL(Op);
+ return DAG.getNode(
+ ISD::FP_EXTEND, SL, MVT::f32,
+ DAG.getNode(ISD::BITCAST, SL, MVT::f16, Op->getOperand(0)));
+ }
}
return SDValue();
}
@@ -5131,6 +5181,22 @@
Results.push_back(DAG.getNode(ISD::BITCAST, SL, MVT::v2f16, Op));
return;
}
+ case ISD::FP_TO_BF16: {
+ // When we don't have 16 bit instructions, bf16 is illegal and gets
+ // softened to i16 for storage, with float being used for arithmetic.
+ //
+ // After softening, fp_to_bf16 can be emitted, but with a i16 VT instead.
+ // Of course those won't work, so we handle them here by lowering them
+ // to (i16 (bitconvert (f32 (fptrunc x))))
+ if (N->getValueType(0) != MVT::i16)
+ break;
+
+ SDLoc SL(N);
+ Results.push_back(
+ DAG.getNode(ISD::BITCAST, SL, MVT::i16,
+ DAG.getFPExtendOrRound(N->getOperand(0), SL, MVT::f16)));
+ return;
+ }
default:
break;
}
Index: llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp
===================================================================
--- llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp
+++ llvm/lib/Target/AMDGPU/AMDGPUISelLowering.cpp
@@ -163,6 +163,7 @@
Expand);
setLoadExtAction(ISD::EXTLOAD, MVT::f32, MVT::f16, Expand);
+ setLoadExtAction(ISD::EXTLOAD, MVT::f32, MVT::bf16, Expand);
setLoadExtAction(ISD::EXTLOAD, MVT::v2f32, MVT::v2f16, Expand);
setLoadExtAction(ISD::EXTLOAD, MVT::v3f32, MVT::v3f16, Expand);
setLoadExtAction(ISD::EXTLOAD, MVT::v4f32, MVT::v4f16, Expand);
@@ -178,6 +179,7 @@
setLoadExtAction(ISD::EXTLOAD, MVT::v16f64, MVT::v16f32, Expand);
setLoadExtAction(ISD::EXTLOAD, MVT::f64, MVT::f16, Expand);
+ setLoadExtAction(ISD::EXTLOAD, MVT::f64, MVT::bf16, Expand);
setLoadExtAction(ISD::EXTLOAD, MVT::v2f64, MVT::v2f16, Expand);
setLoadExtAction(ISD::EXTLOAD, MVT::v3f64, MVT::v3f16, Expand);
setLoadExtAction(ISD::EXTLOAD, MVT::v4f64, MVT::v4f16, Expand);
@@ -272,6 +274,7 @@
setTruncStoreAction(MVT::v2i64, MVT::v2i16, Expand);
setTruncStoreAction(MVT::v2i64, MVT::v2i32, Expand);
+ setTruncStoreAction(MVT::f32, MVT::bf16, Expand);
setTruncStoreAction(MVT::f32, MVT::f16, Expand);
setTruncStoreAction(MVT::v2f32, MVT::v2f16, Expand);
setTruncStoreAction(MVT::v3f32, MVT::v3f16, Expand);
Index: llvm/lib/Target/AMDGPU/AMDGPUCallingConv.td
===================================================================
--- llvm/lib/Target/AMDGPU/AMDGPUCallingConv.td
+++ llvm/lib/Target/AMDGPU/AMDGPUCallingConv.td
@@ -17,6 +17,9 @@
// Calling convention for SI
def CC_SI_Gfx : CallingConv<[
+ CCIfType<[bf16], CCBitConvertToType<i16>>,
+ CCIfType<[v2bf16], CCBitConvertToType<i32>>,
+
// 0-3 are reserved for the stack buffer descriptor
// 30-31 are reserved for the return address
// 32 is reserved for the stack pointer
@@ -42,7 +45,8 @@
def RetCC_SI_Gfx : CallingConv<[
CCIfType<[i1], CCPromoteToType<i32>>,
CCIfType<[i1, i16], CCIfExtend<CCPromoteToType<i32>>>,
-
+ CCIfType<[bf16], CCBitConvertToType<i16>>,
+ CCIfType<[v2bf16], CCBitConvertToType<i32>>,
CCIfNotInReg<CCIfType<[f32, i32, f16, i16, v2i16, v2f16] , CCAssignToReg<[
VGPR0, VGPR1, VGPR2, VGPR3, VGPR4, VGPR5, VGPR6, VGPR7,
VGPR8, VGPR9, VGPR10, VGPR11, VGPR12, VGPR13, VGPR14, VGPR15,
@@ -65,6 +69,8 @@
]>;
def CC_SI_SHADER : CallingConv<[
+ CCIfType<[bf16], CCBitConvertToType<i16>>,
+ CCIfType<[v2bf16], CCBitConvertToType<i32>>,
CCIfInReg<CCIfType<[f32, i32, f16, i16, v2i16, v2f16] , CCAssignToReg<[
SGPR0, SGPR1, SGPR2, SGPR3, SGPR4, SGPR5, SGPR6, SGPR7,
@@ -99,6 +105,8 @@
def RetCC_SI_Shader : CallingConv<[
CCIfType<[i1, i16], CCIfExtend<CCPromoteToType<i32>>>,
+ CCIfType<[bf16], CCBitConvertToType<i16>>,
+ CCIfType<[v2bf16], CCBitConvertToType<i32>>,
CCIfType<[i32, i16] , CCAssignToReg<[
SGPR0, SGPR1, SGPR2, SGPR3, SGPR4, SGPR5, SGPR6, SGPR7,
SGPR8, SGPR9, SGPR10, SGPR11, SGPR12, SGPR13, SGPR14, SGPR15,
@@ -183,6 +191,8 @@
CCIfByVal<CCPassByVal<4, 4>>,
CCIfType<[i1], CCPromoteToType<i32>>,
CCIfType<[i8, i16], CCIfExtend<CCPromoteToType<i32>>>,
+ CCIfType<[bf16], CCBitConvertToType<i16>>,
+ CCIfType<[v2bf16], CCBitConvertToType<i32>>,
CCIfType<[i32, f32, i16, f16, v2i16, v2f16, i1], CCAssignToReg<[
VGPR0, VGPR1, VGPR2, VGPR3, VGPR4, VGPR5, VGPR6, VGPR7,
VGPR8, VGPR9, VGPR10, VGPR11, VGPR12, VGPR13, VGPR14, VGPR15,
@@ -195,6 +205,8 @@
def RetCC_AMDGPU_Func : CallingConv<[
CCIfType<[i1], CCPromoteToType<i32>>,
CCIfType<[i1, i16], CCIfExtend<CCPromoteToType<i32>>>,
+ CCIfType<[bf16], CCBitConvertToType<i16>>,
+ CCIfType<[v2bf16], CCBitConvertToType<i32>>,
CCIfType<[i32, f32, i16, f16, v2i16, v2f16], CCAssignToReg<[
VGPR0, VGPR1, VGPR2, VGPR3, VGPR4, VGPR5, VGPR6, VGPR7,
VGPR8, VGPR9, VGPR10, VGPR11, VGPR12, VGPR13, VGPR14, VGPR15,
Index: clang/test/SemaCUDA/amdgpu-bf16.cu
===================================================================
--- /dev/null
+++ clang/test/SemaCUDA/amdgpu-bf16.cu
@@ -0,0 +1,52 @@
+// REQUIRES: amdgpu-registered-target
+// REQUIRES: x86-registered-target
+
+// RUN: %clang_cc1 "-triple" "x86_64-unknown-linux-gnu" "-aux-triple" "amdgcn-amd-amdhsa"\
+// RUN: "-target-cpu" "x86-64" -fsyntax-only -verify=amdgcn %s
+// RUN: %clang_cc1 "-aux-triple" "x86_64-unknown-linux-gnu" "-triple" "amdgcn-amd-amdhsa"\
+// RUN: -fcuda-is-device "-aux-target-cpu" "x86-64" -fsyntax-only -verify=amdgcn %s
+
+// RUN: %clang_cc1 "-aux-triple" "x86_64-unknown-linux-gnu" "-triple" "r600-unknown-unknown"\
+// RUN: -fcuda-is-device "-aux-target-cpu" "x86-64" -fsyntax-only -verify=amdgcn,r600 %s
+
+// AMDGCN has storage-only support for bf16. R600 does not support it should error out when
+// it's the main target.
+
+#include "Inputs/cuda.h"
+
+// There should be no errors on using the type itself, or when loading/storing values for amdgcn.
+// r600 should error on all uses of the type.
+
+// r600-error@+1 2 {{__bf16 is not supported on this target}}
+__device__ void test(bool b, __bf16 *out, __bf16 in) {
+ __bf16 bf16 = in; // r600-error {{__bf16 is not supported on this target}}
+
+ bf16 + bf16; // amdgcn-error {{invalid operands to binary expression ('__bf16' and '__bf16')}}
+ bf16 - bf16; // amdgcn-error {{invalid operands to binary expression ('__bf16' and '__bf16')}}
+ bf16 * bf16; // amdgcn-error {{invalid operands to binary expression ('__bf16' and '__bf16')}}
+ bf16 / bf16; // amdgcn-error {{invalid operands to binary expression ('__bf16' and '__bf16')}}
+
+ __fp16 fp16;
+
+ bf16 + fp16; // amdgcn-error {{invalid operands to binary expression ('__bf16' and '__fp16')}}
+ fp16 + bf16; // amdgcn-error {{invalid operands to binary expression ('__fp16' and '__bf16')}}
+ bf16 - fp16; // amdgcn-error {{invalid operands to binary expression ('__bf16' and '__fp16')}}
+ fp16 - bf16; // amdgcn-error {{invalid operands to binary expression ('__fp16' and '__bf16')}}
+ bf16 * fp16; // amdgcn-error {{invalid operands to binary expression ('__bf16' and '__fp16')}}
+ fp16 * bf16; // amdgcn-error {{invalid operands to binary expression ('__fp16' and '__bf16')}}
+ bf16 / fp16; // amdgcn-error {{invalid operands to binary expression ('__bf16' and '__fp16')}}
+ fp16 / bf16; // amdgcn-error {{invalid operands to binary expression ('__fp16' and '__bf16')}}
+ bf16 = fp16; // amdgcn-error {{assigning to '__bf16' from incompatible type '__fp16'}}
+ fp16 = bf16; // amdgcn-error {{assigning to '__fp16' from incompatible type '__bf16'}}
+ bf16 + (b ? fp16 : bf16); // amdgcn-error {{incompatible operand types ('__fp16' and '__bf16')}}
+ *out = bf16;
+}
+
+// r600-error@+1 2 {{__bf16 is not supported on this target}}
+__bf16 hostfn(__bf16 a) {
+ return a;
+}
+
+// r600-error@+2 {{__bf16 is not supported on this target}}
+// r600-error@+1 {{vector size not an integral multiple of component size}}
+typedef __bf16 foo __attribute__((__vector_size__(16), __aligned__(16)));
Index: clang/test/CodeGenCUDA/amdgpu-bf16.cu
===================================================================
--- /dev/null
+++ clang/test/CodeGenCUDA/amdgpu-bf16.cu
@@ -0,0 +1,59 @@
+// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py
+// REQUIRES: amdgpu-registered-target
+// REQUIRES: x86-registered-target
+
+// RUN: %clang_cc1 "-aux-triple" "x86_64-unknown-linux-gnu" "-triple" "amdgcn-amd-amdhsa" \
+// RUN: -fcuda-is-device "-aux-target-cpu" "x86-64" -emit-llvm -o - %s | FileCheck %s
+
+#include "Inputs/cuda.h"
+
+// CHECK-LABEL: @_Z8test_argPu6__bf16u6__bf16(
+// CHECK-NEXT: entry:
+// CHECK-NEXT: [[OUT_ADDR:%.*]] = alloca ptr, align 8, addrspace(5)
+// CHECK-NEXT: [[IN_ADDR:%.*]] = alloca bfloat, align 2, addrspace(5)
+// CHECK-NEXT: [[BF16:%.*]] = alloca bfloat, align 2, addrspace(5)
+// CHECK-NEXT: [[OUT_ADDR_ASCAST:%.*]] = addrspacecast ptr addrspace(5) [[OUT_ADDR]] to ptr
+// CHECK-NEXT: [[IN_ADDR_ASCAST:%.*]] = addrspacecast ptr addrspace(5) [[IN_ADDR]] to ptr
+// CHECK-NEXT: [[BF16_ASCAST:%.*]] = addrspacecast ptr addrspace(5) [[BF16]] to ptr
+// CHECK-NEXT: store ptr [[OUT:%.*]], ptr [[OUT_ADDR_ASCAST]], align 8
+// CHECK-NEXT: store bfloat [[IN:%.*]], ptr [[IN_ADDR_ASCAST]], align 2
+// CHECK-NEXT: [[TMP0:%.*]] = load bfloat, ptr [[IN_ADDR_ASCAST]], align 2
+// CHECK-NEXT: store bfloat [[TMP0]], ptr [[BF16_ASCAST]], align 2
+// CHECK-NEXT: [[TMP1:%.*]] = load bfloat, ptr [[BF16_ASCAST]], align 2
+// CHECK-NEXT: [[TMP2:%.*]] = load ptr, ptr [[OUT_ADDR_ASCAST]], align 8
+// CHECK-NEXT: store bfloat [[TMP1]], ptr [[TMP2]], align 2
+// CHECK-NEXT: ret void
+//
+__device__ void test_arg(__bf16 *out, __bf16 in) {
+ __bf16 bf16 = in;
+ *out = bf16;
+}
+
+// CHECK-LABEL: @_Z8test_retu6__bf16(
+// CHECK-NEXT: entry:
+// CHECK-NEXT: [[RETVAL:%.*]] = alloca bfloat, align 2, addrspace(5)
+// CHECK-NEXT: [[IN_ADDR:%.*]] = alloca bfloat, align 2, addrspace(5)
+// CHECK-NEXT: [[RETVAL_ASCAST:%.*]] = addrspacecast ptr addrspace(5) [[RETVAL]] to ptr
+// CHECK-NEXT: [[IN_ADDR_ASCAST:%.*]] = addrspacecast ptr addrspace(5) [[IN_ADDR]] to ptr
+// CHECK-NEXT: store bfloat [[IN:%.*]], ptr [[IN_ADDR_ASCAST]], align 2
+// CHECK-NEXT: [[TMP0:%.*]] = load bfloat, ptr [[IN_ADDR_ASCAST]], align 2
+// CHECK-NEXT: ret bfloat [[TMP0]]
+//
+__device__ __bf16 test_ret( __bf16 in) {
+ return in;
+}
+
+// CHECK-LABEL: @_Z9test_callu6__bf16(
+// CHECK-NEXT: entry:
+// CHECK-NEXT: [[RETVAL:%.*]] = alloca bfloat, align 2, addrspace(5)
+// CHECK-NEXT: [[IN_ADDR:%.*]] = alloca bfloat, align 2, addrspace(5)
+// CHECK-NEXT: [[RETVAL_ASCAST:%.*]] = addrspacecast ptr addrspace(5) [[RETVAL]] to ptr
+// CHECK-NEXT: [[IN_ADDR_ASCAST:%.*]] = addrspacecast ptr addrspace(5) [[IN_ADDR]] to ptr
+// CHECK-NEXT: store bfloat [[IN:%.*]], ptr [[IN_ADDR_ASCAST]], align 2
+// CHECK-NEXT: [[TMP0:%.*]] = load bfloat, ptr [[IN_ADDR_ASCAST]], align 2
+// CHECK-NEXT: [[CALL:%.*]] = call contract noundef bfloat @_Z8test_retu6__bf16(bfloat noundef [[TMP0]]) #[[ATTR1:[0-9]+]]
+// CHECK-NEXT: ret bfloat [[CALL]]
+//
+__device__ __bf16 test_call( __bf16 in) {
+ return test_ret(in);
+}
Index: clang/lib/Basic/Targets/AMDGPU.h
===================================================================
--- clang/lib/Basic/Targets/AMDGPU.h
+++ clang/lib/Basic/Targets/AMDGPU.h
@@ -115,6 +115,9 @@
return getTriple().getArch() == llvm::Triple::amdgcn ? 64 : 32;
}
+ bool hasBFloat16Type() const override { return isAMDGCN(getTriple()); }
+ const char *getBFloat16Mangling() const override { return "u6__bf16"; };
+
const char *getClobbers() const override { return ""; }
ArrayRef<const char *> getGCCRegNames() const override;
Index: clang/lib/Basic/Targets/AMDGPU.cpp
===================================================================
--- clang/lib/Basic/Targets/AMDGPU.cpp
+++ clang/lib/Basic/Targets/AMDGPU.cpp
@@ -365,6 +365,12 @@
!isAMDGCN(Triple));
UseAddrSpaceMapMangling = true;
+ if (isAMDGCN(Triple)) {
+ // __bf16 is always available as a load/store only type on AMDGCN.
+ BFloat16Width = BFloat16Align = 16;
+ BFloat16Format = &llvm::APFloat::BFloat();
+ }
+
HasLegalHalfType = true;
HasFloat16 = true;
WavefrontSize = GPUFeatures & llvm::AMDGPU::FEATURE_WAVE32 ? 32 : 64;
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