================
@@ -0,0 +1,186 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
UTC_ARGS: --version 2
+; RUN: llc -mtriple=aarch64-linux-gnu -mattr=+sme2 -mattr=+fp8
-force-streaming -verify-machineinstrs < %s | FileCheck %s
+
+; FSCALE (Single, x2)
+
+define { <vscale x 8 x half>, <vscale x 8 x half> }
@multi_vec_scale_single_x2_half( <vscale x 8 x half> %zdn1, <vscale x 8 x half>
%zdn2, <vscale x 8 x i16> %zm) {
+; CHECK-LABEL: multi_vec_scale_single_x2_half:
+; CHECK: // %bb.0:
+; CHECK-NEXT: // kill: def $z1 killed $z1 killed $z0_z1 def $z0_z1
+; CHECK-NEXT: // kill: def $z0 killed $z0 killed $z0_z1 def $z0_z1
+; CHECK-NEXT: fscale { z0.h, z1.h }, { z0.h, z1.h }, z2.h
+; CHECK-NEXT: ret
+ %res = call { <vscale x 8 x half>, <vscale x 8 x half> }
@llvm.aarch64.sme.fp8.scale.single.x2.nxv8f16(<vscale x 8 x half> %zdn1,
<vscale x 8 x half> %zdn2, <vscale x 8 x i16> %zm)
+ ret { <vscale x 8 x half>, <vscale x 8 x half> } %res
+}
+
+define { <vscale x 4 x float>, <vscale x 4 x float> }
@multi_vec_scale_single_x2_float( <vscale x 4 x float> %zdn1, <vscale x 4 x
float> %zdn2, <vscale x 4 x i32> %zm) {
+; CHECK-LABEL: multi_vec_scale_single_x2_float:
+; CHECK: // %bb.0:
+; CHECK-NEXT: // kill: def $z1 killed $z1 killed $z0_z1 def $z0_z1
+; CHECK-NEXT: // kill: def $z0 killed $z0 killed $z0_z1 def $z0_z1
+; CHECK-NEXT: fscale { z0.s, z1.s }, { z0.s, z1.s }, z2.s
+; CHECK-NEXT: ret
+ %res = call { <vscale x 4 x float>, <vscale x 4 x float> }
@llvm.aarch64.sme.fp8.scale.single.x2.nxv4f32(<vscale x 4 x float> %zdn1,
<vscale x 4 x float> %zdn2, <vscale x 4 x i32> %zm)
+ ret { <vscale x 4 x float>, <vscale x 4 x float> } %res
+}
+
+define { <vscale x 2 x double>, <vscale x 2 x double> }
@multi_vec_scale_single_x2_double( <vscale x 2 x double> %zdn1, <vscale x 2 x
double> %zdn2, <vscale x 2 x i64> %zm) {
+; CHECK-LABEL: multi_vec_scale_single_x2_double:
+; CHECK: // %bb.0:
+; CHECK-NEXT: // kill: def $z1 killed $z1 killed $z0_z1 def $z0_z1
+; CHECK-NEXT: // kill: def $z0 killed $z0 killed $z0_z1 def $z0_z1
+; CHECK-NEXT: fscale { z0.d, z1.d }, { z0.d, z1.d }, z2.d
+; CHECK-NEXT: ret
+ %res = call { <vscale x 2 x double>, <vscale x 2 x double> }
@llvm.aarch64.sme.fp8.scale.single.x2.nxv2f64(<vscale x 2 x double> %zdn1,
<vscale x 2 x double> %zdn2, <vscale x 2 x i64> %zm)
+ ret { <vscale x 2 x double>, <vscale x 2 x double> } %res
+}
+
+; FSCALE (Single, x4)
+
+define { <vscale x 8 x half>, <vscale x 8 x half>, <vscale x 8 x half>,
<vscale x 8 x half> } @multi_vec_scale_single_x4_half( <vscale x 8 x half>
%zdn1, <vscale x 8 x half> %zdn2, <vscale x 8 x half> %zdn3, <vscale x 8 x
half> %zdn4, <vscale x 8 x i16> %zm) {
+; CHECK-LABEL: multi_vec_scale_single_x4_half:
+; CHECK: // %bb.0:
+; CHECK-NEXT: // kill: def $z3 killed $z3 killed $z0_z1_z2_z3 def
$z0_z1_z2_z3
+; CHECK-NEXT: // kill: def $z2 killed $z2 killed $z0_z1_z2_z3 def
$z0_z1_z2_z3
+; CHECK-NEXT: // kill: def $z1 killed $z1 killed $z0_z1_z2_z3 def
$z0_z1_z2_z3
+; CHECK-NEXT: // kill: def $z0 killed $z0 killed $z0_z1_z2_z3 def
$z0_z1_z2_z3
+; CHECK-NEXT: fscale { z0.h - z3.h }, { z0.h - z3.h }, z4.h
+; CHECK-NEXT: ret
+ %res = call { <vscale x 8 x half>, <vscale x 8 x half>, <vscale x 8 x half>,
<vscale x 8 x half> } @llvm.aarch64.sme.fp8.scale.single.x4.nxv8f16(<vscale x 8
x half> %zdn1, <vscale x 8 x half> %zdn2, <vscale x 8 x half> %zdn3, <vscale x
8 x half> %zdn4, <vscale x 8 x i16> %zm)
+ ret { <vscale x 8 x half>, <vscale x 8 x half>, <vscale x 8 x half>, <vscale
x 8 x half> } %res
+}
+
+define { <vscale x 4 x float>, <vscale x 4 x float>, <vscale x 4 x float>,
<vscale x 4 x float> } @multi_vec_scale_single_x4_float( <vscale x 4 x float>
%zdn1, <vscale x 4 x float> %zdn2, <vscale x 4 x float> %zdn3, <vscale x 4 x
float> %zdn4, <vscale x 4 x i32> %zm) {
+; CHECK-LABEL: multi_vec_scale_single_x4_float:
+; CHECK: // %bb.0:
+; CHECK-NEXT: // kill: def $z3 killed $z3 killed $z0_z1_z2_z3 def
$z0_z1_z2_z3
+; CHECK-NEXT: // kill: def $z2 killed $z2 killed $z0_z1_z2_z3 def
$z0_z1_z2_z3
+; CHECK-NEXT: // kill: def $z1 killed $z1 killed $z0_z1_z2_z3 def
$z0_z1_z2_z3
+; CHECK-NEXT: // kill: def $z0 killed $z0 killed $z0_z1_z2_z3 def
$z0_z1_z2_z3
+; CHECK-NEXT: fscale { z0.s - z3.s }, { z0.s - z3.s }, z4.s
+; CHECK-NEXT: ret
+ %res = call { <vscale x 4 x float>, <vscale x 4 x float>, <vscale x 4 x
float>, <vscale x 4 x float> }
@llvm.aarch64.sme.fp8.scale.single.x4.nxv4f32(<vscale x 4 x float> %zdn1,
<vscale x 4 x float> %zdn2, <vscale x 4 x float> %zdn3, <vscale x 4 x float>
%zdn4, <vscale x 4 x i32> %zm)
+ ret { <vscale x 4 x float>, <vscale x 4 x float>, <vscale x 4 x float>,
<vscale x 4 x float> } %res
+}
+
+define { <vscale x 2 x double>, <vscale x 2 x double>, <vscale x 2 x double>,
<vscale x 2 x double> } @multi_vec_scale_single_x4_double( <vscale x 2 x
double> %zdn1, <vscale x 2 x double> %zdn2, <vscale x 2 x double> %zdn3,
<vscale x 2 x double> %zdn4, <vscale x 2 x i64> %zm) {
+; CHECK-LABEL: multi_vec_scale_single_x4_double:
+; CHECK: // %bb.0:
+; CHECK-NEXT: // kill: def $z3 killed $z3 killed $z0_z1_z2_z3 def
$z0_z1_z2_z3
+; CHECK-NEXT: // kill: def $z2 killed $z2 killed $z0_z1_z2_z3 def
$z0_z1_z2_z3
+; CHECK-NEXT: // kill: def $z1 killed $z1 killed $z0_z1_z2_z3 def
$z0_z1_z2_z3
+; CHECK-NEXT: // kill: def $z0 killed $z0 killed $z0_z1_z2_z3 def
$z0_z1_z2_z3
+; CHECK-NEXT: fscale { z0.d - z3.d }, { z0.d - z3.d }, z4.d
+; CHECK-NEXT: ret
+ %res = call { <vscale x 2 x double>, <vscale x 2 x double>, <vscale x 2 x
double>, <vscale x 2 x double> }
@llvm.aarch64.sme.fp8.scale.single.x4.nxv2f64(<vscale x 2 x double> %zdn1,
<vscale x 2 x double> %zdn2, <vscale x 2 x double> %zdn3, <vscale x 2 x double>
%zdn4, <vscale x 2 x i64> %zm)
+ ret { <vscale x 2 x double>, <vscale x 2 x double>, <vscale x 2 x double>,
<vscale x 2 x double> } %res
+}
+
+; FSCALE (Multi, x2)
+define { <vscale x 8 x half>, <vscale x 8 x half> } @multi_vec_scale_x2_half(
<vscale x 8 x half> %zdn1, <vscale x 8 x half> %zdn2, <vscale x 8 x i16> %zm1,
<vscale x 8 x i16> %zm2) {
+; CHECK-LABEL: multi_vec_scale_x2_half:
+; CHECK: // %bb.0:
+; CHECK-NEXT: // kill: def $z1 killed $z1 killed $z0_z1 def $z0_z1
+; CHECK-NEXT: // kill: def $z3 killed $z3 killed $z2_z3 def $z2_z3
+; CHECK-NEXT: // kill: def $z0 killed $z0 killed $z0_z1 def $z0_z1
+; CHECK-NEXT: // kill: def $z2 killed $z2 killed $z2_z3 def $z2_z3
+; CHECK-NEXT: fscale { z0.h, z1.h }, { z0.h, z1.h }, { z2.h, z3.h }
+; CHECK-NEXT: ret
+ %res = call { <vscale x 8 x half>, <vscale x 8 x half> }
@llvm.aarch64.sme.fp8.scale.x2.nxv8f16(<vscale x 8 x half> %zdn1, <vscale x 8 x
half> %zdn2, <vscale x 8 x i16> %zm1, <vscale x 8 x i16> %zm2)
+ ret { <vscale x 8 x half>, <vscale x 8 x half> } %res
+}
+
+define { <vscale x 4 x float>, <vscale x 4 x float> }
@multi_vec_scale_x2_float( <vscale x 4 x float> %zdn1, <vscale x 4 x float>
%zdn2, <vscale x 4 x i32> %zm1, <vscale x 4 x i32> %zm2 ) {
+; CHECK-LABEL: multi_vec_scale_x2_float:
+; CHECK: // %bb.0:
+; CHECK-NEXT: // kill: def $z1 killed $z1 killed $z0_z1 def $z0_z1
+; CHECK-NEXT: // kill: def $z3 killed $z3 killed $z2_z3 def $z2_z3
+; CHECK-NEXT: // kill: def $z0 killed $z0 killed $z0_z1 def $z0_z1
+; CHECK-NEXT: // kill: def $z2 killed $z2 killed $z2_z3 def $z2_z3
+; CHECK-NEXT: fscale { z0.s, z1.s }, { z0.s, z1.s }, { z2.s, z3.s }
+; CHECK-NEXT: ret
+ %res = call { <vscale x 4 x float>, <vscale x 4 x float> }
@llvm.aarch64.sme.fp8.scale.x2.nxv4f32(<vscale x 4 x float> %zdn1, <vscale x 4
x float> %zdn2, <vscale x 4 x i32> %zm1, <vscale x 4 x i32> %zm2)
+ ret { <vscale x 4 x float>, <vscale x 4 x float> } %res
+}
+
+define { <vscale x 2 x double>, <vscale x 2 x double> }
@multi_vec_scale_x2_double( <vscale x 2 x double> %zdn1, <vscale x 2 x double>
%zdn2, <vscale x 2 x i64> %zm1, <vscale x 2 x i64> %zm2) {
+; CHECK-LABEL: multi_vec_scale_x2_double:
+; CHECK: // %bb.0:
+; CHECK-NEXT: // kill: def $z1 killed $z1 killed $z0_z1 def $z0_z1
+; CHECK-NEXT: // kill: def $z3 killed $z3 killed $z2_z3 def $z2_z3
+; CHECK-NEXT: // kill: def $z0 killed $z0 killed $z0_z1 def $z0_z1
+; CHECK-NEXT: // kill: def $z2 killed $z2 killed $z2_z3 def $z2_z3
+; CHECK-NEXT: fscale { z0.d, z1.d }, { z0.d, z1.d }, { z2.d, z3.d }
+; CHECK-NEXT: ret
+ %res = call { <vscale x 2 x double>, <vscale x 2 x double> }
@llvm.aarch64.sme.fp8.scale.x2.nxv2f64(<vscale x 2 x double> %zdn1, <vscale x 2
x double> %zdn2, <vscale x 2 x i64> %zm1, <vscale x 2 x i64> %zm2)
+ ret { <vscale x 2 x double>, <vscale x 2 x double> } %res
+}
+
+; FSCALE (Multi, x4)
+define { <vscale x 8 x half>, <vscale x 8 x half>, <vscale x 8 x half>,
<vscale x 8 x half> } @multi_vec_scale_x4_half( <vscale x 8 x half> %zdn1,
<vscale x 8 x half> %zdn2, <vscale x 8 x half> %zdn3, <vscale x 8 x half>
%zdn4, <vscale x 8 x i16> %zm1, <vscale x 8 x i16> %zm2, <vscale x 8 x i16>
%zm3, <vscale x 8 x i16> %zm4) {
+; CHECK-LABEL: multi_vec_scale_x4_half:
+; CHECK: // %bb.0:
+; CHECK-NEXT: // kill: def $z3 killed $z3 killed $z0_z1_z2_z3 def
$z0_z1_z2_z3
+; CHECK-NEXT: // kill: def $z7 killed $z7 killed $z4_z5_z6_z7 def
$z4_z5_z6_z7
+; CHECK-NEXT: // kill: def $z2 killed $z2 killed $z0_z1_z2_z3 def
$z0_z1_z2_z3
+; CHECK-NEXT: // kill: def $z6 killed $z6 killed $z4_z5_z6_z7 def
$z4_z5_z6_z7
+; CHECK-NEXT: // kill: def $z1 killed $z1 killed $z0_z1_z2_z3 def
$z0_z1_z2_z3
+; CHECK-NEXT: // kill: def $z5 killed $z5 killed $z4_z5_z6_z7 def
$z4_z5_z6_z7
+; CHECK-NEXT: // kill: def $z0 killed $z0 killed $z0_z1_z2_z3 def
$z0_z1_z2_z3
+; CHECK-NEXT: // kill: def $z4 killed $z4 killed $z4_z5_z6_z7 def
$z4_z5_z6_z7
+; CHECK-NEXT: fscale { z0.h - z3.h }, { z0.h - z3.h }, { z4.h - z7.h }
+; CHECK-NEXT: ret
+ %res = call { <vscale x 8 x half>, <vscale x 8 x half>, <vscale x 8 x half>,
<vscale x 8 x half> } @llvm.aarch64.sme.fp8.scale.x4.nxv8f16(<vscale x 8 x
half> %zdn1, <vscale x 8 x half> %zdn2, <vscale x 8 x half> %zdn3, <vscale x 8
x half> %zdn4, <vscale x 8 x i16> %zm1, <vscale x 8 x i16> %zm2, <vscale x 8 x
i16> %zm3, <vscale x 8 x i16> %zm4)
+ ret { <vscale x 8 x half>, <vscale x 8 x half>, <vscale x 8 x half>, <vscale
x 8 x half> } %res
+}
+
+define { <vscale x 4 x float>, <vscale x 4 x float>, <vscale x 4 x float>,
<vscale x 4 x float> } @multi_vec_scale_x4_float( <vscale x 4 x float> %zdn1,
<vscale x 4 x float> %zdn2, <vscale x 4 x float> %zdn3, <vscale x 4 x float>
%zdn4, <vscale x 4 x i32> %zm1, <vscale x 4 x i32> %zm2, <vscale x 4 x i32>
%zm3, <vscale x 4 x i32> %zm4) {
+; CHECK-LABEL: multi_vec_scale_x4_float:
+; CHECK: // %bb.0:
+; CHECK-NEXT: // kill: def $z3 killed $z3 killed $z0_z1_z2_z3 def
$z0_z1_z2_z3
+; CHECK-NEXT: // kill: def $z7 killed $z7 killed $z4_z5_z6_z7 def
$z4_z5_z6_z7
+; CHECK-NEXT: // kill: def $z2 killed $z2 killed $z0_z1_z2_z3 def
$z0_z1_z2_z3
+; CHECK-NEXT: // kill: def $z6 killed $z6 killed $z4_z5_z6_z7 def
$z4_z5_z6_z7
+; CHECK-NEXT: // kill: def $z1 killed $z1 killed $z0_z1_z2_z3 def
$z0_z1_z2_z3
+; CHECK-NEXT: // kill: def $z5 killed $z5 killed $z4_z5_z6_z7 def
$z4_z5_z6_z7
+; CHECK-NEXT: // kill: def $z0 killed $z0 killed $z0_z1_z2_z3 def
$z0_z1_z2_z3
+; CHECK-NEXT: // kill: def $z4 killed $z4 killed $z4_z5_z6_z7 def
$z4_z5_z6_z7
+; CHECK-NEXT: fscale { z0.s - z3.s }, { z0.s - z3.s }, { z4.s - z7.s }
+; CHECK-NEXT: ret
+ %res = call { <vscale x 4 x float>, <vscale x 4 x float>, <vscale x 4 x
float>, <vscale x 4 x float> } @llvm.aarch64.sme.fp8.scale.x4.nxv4f32(<vscale x
4 x float> %zdn1, <vscale x 4 x float> %zdn2, <vscale x 4 x float> %zdn3,
<vscale x 4 x float> %zdn4, <vscale x 4 x i32> %zm1, <vscale x 4 x i32> %zm2,
<vscale x 4 x i32> %zm3, <vscale x 4 x i32> %zm4)
+ ret { <vscale x 4 x float>, <vscale x 4 x float>, <vscale x 4 x float>,
<vscale x 4 x float> } %res
+}
+
+define { <vscale x 2 x double>, <vscale x 2 x double>, <vscale x 2 x double>,
<vscale x 2 x double> } @multi_vec_scale_x4_double( <vscale x 2 x double>
%zdn1, <vscale x 2 x double> %zdn2, <vscale x 2 x double> %zdn3, <vscale x 2 x
double> %zdn4, <vscale x 2 x i64> %zm1, <vscale x 2 x i64> %zm2, <vscale x 2 x
i64> %zm3, <vscale x 2 x i64> %zm4) {
+; CHECK-LABEL: multi_vec_scale_x4_double:
+; CHECK: // %bb.0:
+; CHECK-NEXT: mov z27.d, z7.d
+; CHECK-NEXT: // kill: def $z3 killed $z3 killed $z0_z1_z2_z3 def
$z0_z1_z2_z3
+; CHECK-NEXT: mov z25.d, z6.d
+; CHECK-NEXT: // kill: def $z2 killed $z2 killed $z0_z1_z2_z3 def
$z0_z1_z2_z3
+; CHECK-NEXT: mov z24.d, z4.d
+; CHECK-NEXT: // kill: def $z1 killed $z1 killed $z0_z1_z2_z3 def
$z0_z1_z2_z3
+; CHECK-NEXT: mov z26.d, z25.d
+; CHECK-NEXT: // kill: def $z0 killed $z0 killed $z0_z1_z2_z3 def
$z0_z1_z2_z3
+; CHECK-NEXT: fscale { z0.d - z3.d }, { z0.d - z3.d }, { z24.d - z27.d }
+; CHECK-NEXT: ret
+ %res = call { <vscale x 2 x double>, <vscale x 2 x double>, <vscale x 2 x
double>, <vscale x 2 x double> } @llvm.aarch64.sme.fp8.scale.x4.nxv2f64(<vscale
x 2 x double> %zdn1, <vscale x 2 x double> %zdn2, <vscale x 2 x double> %zdn3,
<vscale x 2 x double> %zdn4, <vscale x 2 x i64> %zm1, <vscale x 2 x i64> %zm3,
<vscale x 2 x i64> %zm3, <vscale x 2 x i64> %zm4)
----------------
SpencerAbson wrote:
I think this call incorrectly uses `%zm3` twice instead of `%zm2`, which is why
the sequence of `mov` instructions makes little sense.
I believe we should have `fscale {z0.d - z3.d}, {z0.d - z3.d}, {z4.d - z7.d}`.
https://github.com/llvm/llvm-project/pull/100128
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