https://github.com/shiltian closed
https://github.com/llvm/llvm-project/pull/80908
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https://github.com/rampitec approved this pull request.
Thanks. There are definitely at least 2 outstanding problems, but it seems
there are no regressions comparing to what we have now. LGTM.
https://github.com/llvm/llvm-project/pull/80908
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https://github.com/shiltian updated
https://github.com/llvm/llvm-project/pull/80908
>From 5b66bb22a91690078a955cea6c02b6b746b6502b Mon Sep 17 00:00:00 2001
From: Shilei Tian
Date: Fri, 16 Feb 2024 15:08:35 -0500
Subject: [PATCH] [RFC][WIP][AMDGPU] Use `bf16` instead of `i16` for bfloat
Current
@@ -0,0 +1,8 @@
+// RUN: llvm-mc -arch=amdgcn -mcpu=gfx1100 -show-encoding %s | FileCheck %s
+// RUN: llvm-mc -arch=amdgcn -mcpu=gfx1200 -show-encoding %s | FileCheck %s
+
+v_dot2_bf16_bf16 v5, v1, v2, 100.0
+// CHECK: v_dot2_bf16_bf16 v5, v1, v2, 0x42c8 ; encoding:
[0x05,0x00,0x
https://github.com/shiltian edited
https://github.com/llvm/llvm-project/pull/80908
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https://github.com/shiltian edited
https://github.com/llvm/llvm-project/pull/80908
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https://github.com/shiltian edited
https://github.com/llvm/llvm-project/pull/80908
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https://github.com/shiltian edited
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@@ -0,0 +1,8 @@
+// RUN: llvm-mc -arch=amdgcn -mcpu=gfx1100 -show-encoding %s | FileCheck %s
+// RUN: llvm-mc -arch=amdgcn -mcpu=gfx1200 -show-encoding %s | FileCheck %s
+
+v_dot2_bf16_bf16 v5, v1, v2, 100.0
+// CHECK: v_dot2_bf16_bf16 v5, v1, v2, 0x42c8 ; encoding:
[0x05,0x00,0x
@@ -0,0 +1,8 @@
+// RUN: llvm-mc -arch=amdgcn -mcpu=gfx1100 -show-encoding %s | FileCheck %s
+// RUN: llvm-mc -arch=amdgcn -mcpu=gfx1200 -show-encoding %s | FileCheck %s
+
+v_dot2_bf16_bf16 v5, v1, v2, 100.0
+// CHECK: v_dot2_bf16_bf16 v5, v1, v2, 0x42c8 ; encoding:
[0x05,0x00,0x
@@ -2652,6 +2652,23 @@ bool isInlinableLiteral32(int32_t Literal, bool
HasInv2Pi) {
(Val == 0x3e22f983 && HasInv2Pi);
}
+bool isInlinableLiteralBF16(int16_t Literal, bool HasInv2Pi) {
+ if (!HasInv2Pi)
+return false;
rampitec wrote:
It does not
@@ -157,6 +157,27 @@ static uint32_t getLit16Encoding(uint16_t Val, const
MCSubtargetInfo &STI) {
return 255;
}
+static uint32_t getLitBF16Encoding(uint16_t Val) {
+ uint16_t IntImm = getIntInlineImmEncoding(static_cast(Val));
+ if (IntImm != 0)
+return IntImm;
+
+ /
@@ -157,6 +157,27 @@ static uint32_t getLit16Encoding(uint16_t Val, const
MCSubtargetInfo &STI) {
return 255;
}
+static uint32_t getLitBF16Encoding(uint16_t Val) {
+ uint16_t IntImm = getIntInlineImmEncoding(static_cast(Val));
+ if (IntImm != 0)
+return IntImm;
+
+ /
@@ -157,6 +157,27 @@ static uint32_t getLit16Encoding(uint16_t Val, const
MCSubtargetInfo &STI) {
return 255;
}
+static uint32_t getLitBF16Encoding(uint16_t Val) {
+ uint16_t IntImm = getIntInlineImmEncoding(static_cast(Val));
+ if (IntImm != 0)
+return IntImm;
+
+ /
https://github.com/shiltian updated
https://github.com/llvm/llvm-project/pull/80908
>From d95e99ebcefa76ba2e8068f663be86340c14ab5b Mon Sep 17 00:00:00 2001
From: Shilei Tian
Date: Fri, 16 Feb 2024 11:29:47 -0500
Subject: [PATCH] [RFC][WIP][AMDGPU] Use `bf16` instead of `i16` for bfloat
Current
https://github.com/shiltian edited
https://github.com/llvm/llvm-project/pull/80908
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