diff options
Diffstat (limited to 'test/CodeGen/X86/x86-setcc-int-to-fp-combine.ll')
-rw-r--r-- | test/CodeGen/X86/x86-setcc-int-to-fp-combine.ll | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/test/CodeGen/X86/x86-setcc-int-to-fp-combine.ll b/test/CodeGen/X86/x86-setcc-int-to-fp-combine.ll new file mode 100644 index 0000000..4317d8a --- /dev/null +++ b/test/CodeGen/X86/x86-setcc-int-to-fp-combine.ll @@ -0,0 +1,74 @@ +; RUN: llc < %s -mtriple=x86_64-apple-darwin | FileCheck %s + +define <4 x float> @foo(<4 x float> %val, <4 x float> %test) nounwind { +; CHECK-LABEL: LCPI0_0: +; CHECK-NEXT: .long 1065353216 ## 0x3f800000 +; CHECK-NEXT: .long 1065353216 ## 0x3f800000 +; CHECK-NEXT: .long 1065353216 ## 0x3f800000 +; CHECK-NEXT: .long 1065353216 ## 0x3f800000 +; CHECK-LABEL: foo: +; CHECK: cmpeqps %xmm1, %xmm0 +; CHECK-NEXT: andps LCPI0_0(%rip), %xmm0 +; CHECK-NEXT: retq + + %cmp = fcmp oeq <4 x float> %val, %test + %ext = zext <4 x i1> %cmp to <4 x i32> + %result = sitofp <4 x i32> %ext to <4 x float> + ret <4 x float> %result +} + +; Make sure the operation doesn't try to get folded when the sizes don't match, +; as that ends up crashing later when trying to form a bitcast operation for +; the folded nodes. +define void @foo1(<4 x float> %val, <4 x float> %test, <4 x double>* %p) nounwind { +; CHECK-LABEL: LCPI1_0: +; CHECK-NEXT: .long 1 ## 0x1 +; CHECK-NEXT: .long 1 ## 0x1 +; CHECK-NEXT: .long 1 ## 0x1 +; CHECK-NEXT: .long 1 ## 0x1 +; CHECK-LABEL: foo1: +; FIXME: The operation gets scalarized. If/when the compiler learns to better +; use [V]CVTDQ2PD, this will need updated. +; CHECK: cvtsi2sdq +; CHECK: cvtsi2sdq +; CHECK: cvtsi2sdq +; CHECK: cvtsi2sdq + %cmp = fcmp oeq <4 x float> %val, %test + %ext = zext <4 x i1> %cmp to <4 x i32> + %result = sitofp <4 x i32> %ext to <4 x double> + store <4 x double> %result, <4 x double>* %p + ret void +} + +; Also test the general purpose constant folding of int->fp. +define void @foo2(<4 x float>* noalias %result) nounwind { +; CHECK-LABEL: LCPI2_0: +; CHECK-NEXT: .long 1082130432 ## float 4.000000e+00 +; CHECK-NEXT: .long 1084227584 ## float 5.000000e+00 +; CHECK-NEXT: .long 1086324736 ## float 6.000000e+00 +; CHECK-NEXT: .long 1088421888 ## float 7.000000e+00 +; CHECK-LABEL: foo2: +; CHECK: movaps LCPI2_0(%rip), %xmm0 + + %val = uitofp <4 x i32> <i32 4, i32 5, i32 6, i32 7> to <4 x float> + store <4 x float> %val, <4 x float>* %result + ret void +} + +; Fold explicit AND operations when the constant isn't a splat of a single +; scalar value like what the zext creates. +define <4 x float> @foo3(<4 x float> %val, <4 x float> %test) nounwind { +; CHECK-LABEL: LCPI3_0: +; CHECK-NEXT: .long 1065353216 ## 0x3f800000 +; CHECK-NEXT: .long 0 ## 0x0 +; CHECK-NEXT: .long 1065353216 ## 0x3f800000 +; CHECK-NEXT: .long 0 ## 0x0 +; CHECK-LABEL: foo3: +; CHECK: cmpeqps %xmm1, %xmm0 +; CHECK-NEXT: andps LCPI3_0(%rip), %xmm0 + %cmp = fcmp oeq <4 x float> %val, %test + %ext = zext <4 x i1> %cmp to <4 x i32> + %and = and <4 x i32> %ext, <i32 255, i32 256, i32 257, i32 258> + %result = sitofp <4 x i32> %and to <4 x float> + ret <4 x float> %result +} |