97 lines
3.8 KiB
LLVM
97 lines
3.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -instcombine -S | FileCheck %s
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declare void @use_f32(float)
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declare void @use_v4f32(<4 x float>)
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define <4 x float> @bitcast_inselt(i32 %x, <4 x i32> %v) {
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; CHECK-LABEL: @bitcast_inselt(
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; CHECK-NEXT: [[TMP1:%.*]] = insertelement <4 x i32> [[V:%.*]], i32 [[X:%.*]], i64 0
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; CHECK-NEXT: [[R:%.*]] = bitcast <4 x i32> [[TMP1]] to <4 x float>
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; CHECK-NEXT: ret <4 x float> [[R]]
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;
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%xf = bitcast i32 %x to float
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%vf = bitcast <4 x i32> %v to <4 x float>
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%r = insertelement <4 x float> %vf, float %xf, i32 0
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ret <4 x float> %r
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}
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define <4 x float> @bitcast_inselt_use1(i32 %x, <4 x i32> %v) {
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; CHECK-LABEL: @bitcast_inselt_use1(
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; CHECK-NEXT: [[XF:%.*]] = bitcast i32 [[X:%.*]] to float
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; CHECK-NEXT: call void @use_f32(float [[XF]])
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; CHECK-NEXT: [[TMP1:%.*]] = insertelement <4 x i32> [[V:%.*]], i32 [[X]], i64 1
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; CHECK-NEXT: [[R:%.*]] = bitcast <4 x i32> [[TMP1]] to <4 x float>
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; CHECK-NEXT: ret <4 x float> [[R]]
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;
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%xf = bitcast i32 %x to float
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call void @use_f32(float %xf)
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%vf = bitcast <4 x i32> %v to <4 x float>
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%r = insertelement <4 x float> %vf, float %xf, i32 1
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ret <4 x float> %r
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}
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define <4 x float> @bitcast_inselt_use2(i32 %x, <4 x i32> %v, i32 %index) {
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; CHECK-LABEL: @bitcast_inselt_use2(
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; CHECK-NEXT: [[VF:%.*]] = bitcast <4 x i32> [[V:%.*]] to <4 x float>
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; CHECK-NEXT: call void @use_v4f32(<4 x float> [[VF]])
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; CHECK-NEXT: [[TMP1:%.*]] = insertelement <4 x i32> [[V]], i32 [[X:%.*]], i32 [[INDEX:%.*]]
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; CHECK-NEXT: [[R:%.*]] = bitcast <4 x i32> [[TMP1]] to <4 x float>
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; CHECK-NEXT: ret <4 x float> [[R]]
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;
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%xf = bitcast i32 %x to float
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%vf = bitcast <4 x i32> %v to <4 x float>
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call void @use_v4f32(<4 x float> %vf)
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%r = insertelement <4 x float> %vf, float %xf, i32 %index
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ret <4 x float> %r
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}
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; Negative test - 2 extra uses would require an extra instruction.
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define <4 x float> @bitcast_inselt_use3(i32 %x, <4 x i32> %v) {
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; CHECK-LABEL: @bitcast_inselt_use3(
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; CHECK-NEXT: [[XF:%.*]] = bitcast i32 [[X:%.*]] to float
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; CHECK-NEXT: call void @use_f32(float [[XF]])
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; CHECK-NEXT: [[VF:%.*]] = bitcast <4 x i32> [[V:%.*]] to <4 x float>
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; CHECK-NEXT: call void @use_v4f32(<4 x float> [[VF]])
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; CHECK-NEXT: [[R:%.*]] = insertelement <4 x float> [[VF]], float [[XF]], i64 0
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; CHECK-NEXT: ret <4 x float> [[R]]
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;
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%xf = bitcast i32 %x to float
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call void @use_f32(float %xf)
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%vf = bitcast <4 x i32> %v to <4 x float>
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call void @use_v4f32(<4 x float> %vf)
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%r = insertelement <4 x float> %vf, float %xf, i32 0
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ret <4 x float> %r
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}
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; Negative test - wrong source type for vector.
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define <2 x float> @bitcast_inselt_wrong_bitcast1(i32 %x, i64 %notv) {
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; CHECK-LABEL: @bitcast_inselt_wrong_bitcast1(
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; CHECK-NEXT: [[XF:%.*]] = bitcast i32 [[X:%.*]] to float
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; CHECK-NEXT: [[VF:%.*]] = bitcast i64 [[NOTV:%.*]] to <2 x float>
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; CHECK-NEXT: [[R:%.*]] = insertelement <2 x float> [[VF]], float [[XF]], i64 0
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; CHECK-NEXT: ret <2 x float> [[R]]
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;
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%xf = bitcast i32 %x to float
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%vf = bitcast i64 %notv to <2 x float>
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%r = insertelement <2 x float> %vf, float %xf, i32 0
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ret <2 x float> %r
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}
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; Negative test - wrong source type for scalar.
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define <2 x float> @bitcast_inselt_wrong_bitcast2(<2 x i16> %notscalar, <2 x i32> %v) {
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; CHECK-LABEL: @bitcast_inselt_wrong_bitcast2(
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; CHECK-NEXT: [[XF:%.*]] = bitcast <2 x i16> [[NOTSCALAR:%.*]] to float
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; CHECK-NEXT: [[VF:%.*]] = bitcast <2 x i32> [[V:%.*]] to <2 x float>
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; CHECK-NEXT: [[R:%.*]] = insertelement <2 x float> [[VF]], float [[XF]], i64 0
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; CHECK-NEXT: ret <2 x float> [[R]]
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;
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%xf = bitcast <2 x i16> %notscalar to float
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%vf = bitcast <2 x i32> %v to <2 x float>
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%r = insertelement <2 x float> %vf, float %xf, i32 0
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ret <2 x float> %r
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}
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