forked from OSchip/llvm-project
75 lines
2.9 KiB
LLVM
75 lines
2.9 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: cmpeqps %xmm1, %xmm0
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; CHECK-NEXT: andps LCPI0_0(%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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; FIXME: The operation gets scalarized. If/when the compiler learns to better
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; use [V]CVTDQ2PD, this will need updated.
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; CHECK: cvtsi2sdq
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; CHECK: cvtsi2sdq
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; CHECK: cvtsi2sdq
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; CHECK: cvtsi2sdq
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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 4.000000e+00
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; CHECK-NEXT: .long 1084227584 ## float 5.000000e+00
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; CHECK-NEXT: .long 1086324736 ## float 6.000000e+00
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; CHECK-NEXT: .long 1088421888 ## float 7.000000e+00
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; CHECK-LABEL: foo2:
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; CHECK: movaps LCPI2_0(%rip), %xmm0
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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: cmpeqps %xmm1, %xmm0
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; CHECK-NEXT: andps LCPI3_0(%rip), %xmm0
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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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