[clang] [llvm] [SPIRV] add pre legalization instruction combine (PR #122839)

[Vyacheslav Levytskyy via llvm-commits]

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@@ -1,33 +1,44 @@
-; RUN: llc -O0 -mtriple=spirv-unknown-unknown %s -o - | FileCheck %s
-; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv-unknown-unknown %s -o - -filetype=obj | spirv-val %}
-
-; Make sure SPIRV operation function calls for distance are lowered correctly.
-
-; CHECK-DAG: %[[#op_ext_glsl:]] = OpExtInstImport "GLSL.std.450"
-; CHECK-DAG: %[[#float_16:]] = OpTypeFloat 16
-; CHECK-DAG: %[[#vec4_float_16:]] = OpTypeVector %[[#float_16]] 4
-; CHECK-DAG: %[[#float_32:]] = OpTypeFloat 32
-; CHECK-DAG: %[[#vec4_float_32:]] = OpTypeVector %[[#float_32]] 4
-
-define noundef half @distance_half4(<4 x half> noundef %a, <4 x half> noundef %b) {
-entry:
-  ; CHECK: %[[#]] = OpFunction %[[#float_16]] None %[[#]]
-  ; CHECK: %[[#arg0:]] = OpFunctionParameter %[[#vec4_float_16]]
-  ; CHECK: %[[#arg1:]] = OpFunctionParameter %[[#vec4_float_16]]
-  ; CHECK: %[[#]] = OpExtInst %[[#float_16]] %[[#op_ext_glsl]] Distance %[[#arg0]] %[[#arg1]]
-  %spv.distance = call half @llvm.spv.distance.f16(<4 x half> %a, <4 x half> %b)
-  ret half %spv.distance
-}
-
-define noundef float @distance_float4(<4 x float> noundef %a, <4 x float> noundef %b) {
-entry:
-  ; CHECK: %[[#]] = OpFunction %[[#float_32]] None %[[#]]
-  ; CHECK: %[[#arg0:]] = OpFunctionParameter %[[#vec4_float_32]]
-  ; CHECK: %[[#arg1:]] = OpFunctionParameter %[[#vec4_float_32]]
-  ; CHECK: %[[#]] = OpExtInst %[[#float_32]] %[[#op_ext_glsl]] Distance %[[#arg0]] %[[#arg1]]
-  %spv.distance = call float @llvm.spv.distance.f32(<4 x float> %a, <4 x float> %b)
-  ret float %spv.distance
-}
-
-declare half @llvm.spv.distance.f16(<4 x half>, <4 x half>)
-declare float @llvm.spv.distance.f32(<4 x float>, <4 x float>)
+; RUN: llc -O0 -mtriple=spirv-unknown-unknown %s -o - | FileCheck %s
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VyacheslavLevytskyy wrote:

Can we please add -verify-machineinstrs here to be sure that expensive_checks run will be happy?

https://github.com/llvm/llvm-project/pull/122839