forked from OSchip/llvm-project
99 lines
3.8 KiB
LLVM
99 lines
3.8 KiB
LLVM
; RUN: llc < %s -mtriple=x86_64-apple-darwin | FileCheck %s
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define <4 x float> @foo(<4 x float> %val, <4 x float> %test) nounwind {
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; CHECK-LABEL: LCPI0_0:
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; CHECK-NEXT: .long 1065353216 ## 0x3f800000
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; CHECK-NEXT: .long 1065353216 ## 0x3f800000
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; CHECK-NEXT: .long 1065353216 ## 0x3f800000
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; CHECK-NEXT: .long 1065353216 ## 0x3f800000
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; CHECK-LABEL: foo:
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; CHECK: ## %bb.0:
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; CHECK-NEXT: cmpeqps %xmm1, %xmm0
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; CHECK-NEXT: andps {{.*}}(%rip), %xmm0
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; CHECK-NEXT: retq
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%cmp = fcmp oeq <4 x float> %val, %test
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%ext = zext <4 x i1> %cmp to <4 x i32>
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%result = sitofp <4 x i32> %ext to <4 x float>
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ret <4 x float> %result
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}
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; Make sure the operation doesn't try to get folded when the sizes don't match,
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; as that ends up crashing later when trying to form a bitcast operation for
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; the folded nodes.
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define void @foo1(<4 x float> %val, <4 x float> %test, <4 x double>* %p) nounwind {
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; CHECK-LABEL: LCPI1_0:
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; CHECK-NEXT: .long 1 ## 0x1
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; CHECK-NEXT: .long 1 ## 0x1
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; CHECK-NEXT: .long 1 ## 0x1
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; CHECK-NEXT: .long 1 ## 0x1
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; CHECK-LABEL: foo1:
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; CHECK: ## %bb.0:
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; CHECK-NEXT: cmpeqps %xmm1, %xmm0
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; CHECK-NEXT: andps {{.*}}(%rip), %xmm0
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; CHECK-NEXT: pshufd {{.*#+}} xmm1 = xmm0[2,3,0,1]
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; CHECK-NEXT: cvtdq2pd %xmm1, %xmm1
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; CHECK-NEXT: cvtdq2pd %xmm0, %xmm0
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; CHECK-NEXT: movaps %xmm0, (%rdi)
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; CHECK-NEXT: movaps %xmm1, 16(%rdi)
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; CHECK-NEXT: retq
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%cmp = fcmp oeq <4 x float> %val, %test
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%ext = zext <4 x i1> %cmp to <4 x i32>
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%result = sitofp <4 x i32> %ext to <4 x double>
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store <4 x double> %result, <4 x double>* %p
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ret void
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}
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; Also test the general purpose constant folding of int->fp.
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define void @foo2(<4 x float>* noalias %result) nounwind {
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; CHECK-LABEL: LCPI2_0:
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; CHECK-NEXT: .long 1082130432 ## float 4
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; CHECK-NEXT: .long 1084227584 ## float 5
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; CHECK-NEXT: .long 1086324736 ## float 6
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; CHECK-NEXT: .long 1088421888 ## float 7
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; CHECK-LABEL: foo2:
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; CHECK: ## %bb.0:
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; CHECK-NEXT: movaps {{.*#+}} xmm0 = [4.0E+0,5.0E+0,6.0E+0,7.0E+0]
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; CHECK-NEXT: movaps %xmm0, (%rdi)
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; CHECK-NEXT: retq
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%val = uitofp <4 x i32> <i32 4, i32 5, i32 6, i32 7> to <4 x float>
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store <4 x float> %val, <4 x float>* %result
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ret void
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}
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; Fold explicit AND operations when the constant isn't a splat of a single
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; scalar value like what the zext creates.
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define <4 x float> @foo3(<4 x float> %val, <4 x float> %test) nounwind {
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; CHECK-LABEL: LCPI3_0:
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; CHECK-NEXT: .long 1065353216 ## 0x3f800000
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; CHECK-NEXT: .long 0 ## 0x0
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; CHECK-NEXT: .long 1065353216 ## 0x3f800000
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; CHECK-NEXT: .long 0 ## 0x0
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; CHECK-LABEL: foo3:
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; CHECK: ## %bb.0:
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; CHECK-NEXT: cmpeqps %xmm1, %xmm0
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; CHECK-NEXT: andps {{.*}}(%rip), %xmm0
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; CHECK-NEXT: retq
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%cmp = fcmp oeq <4 x float> %val, %test
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%ext = zext <4 x i1> %cmp to <4 x i32>
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%and = and <4 x i32> %ext, <i32 255, i32 256, i32 257, i32 258>
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%result = sitofp <4 x i32> %and to <4 x float>
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ret <4 x float> %result
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}
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; Test the general purpose constant folding of uint->fp.
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define void @foo4(<4 x float>* noalias %result) nounwind {
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; CHECK-LABEL: LCPI4_0:
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; CHECK-NEXT: .long 1065353216 ## float 1
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; CHECK-NEXT: .long 1123942400 ## float 127
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; CHECK-NEXT: .long 1124073472 ## float 128
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; CHECK-NEXT: .long 1132396544 ## float 255
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; CHECK-LABEL: foo4:
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; CHECK: ## %bb.0:
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; CHECK-NEXT: movaps {{.*#+}} xmm0 = [1.0E+0,1.27E+2,1.28E+2,2.55E+2]
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; CHECK-NEXT: movaps %xmm0, (%rdi)
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; CHECK-NEXT: retq
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%val = uitofp <4 x i8> <i8 1, i8 127, i8 -128, i8 -1> to <4 x float>
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store <4 x float> %val, <4 x float>* %result
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ret void
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}
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