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57 lines
1.6 KiB
LLVM
57 lines
1.6 KiB
LLVM
; RUN: llc < %s -march=x86 -mattr=+sse2 | FileCheck %s
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; When loading the shift amount from memory, avoid generating the splat.
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define void @shift5a(<4 x i32> %val, <4 x i32>* %dst, i32* %pamt) nounwind {
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entry:
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; CHECK: shift5a:
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; CHECK: movd
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; CHECK-NEXT: pslld
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%amt = load i32* %pamt
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%tmp0 = insertelement <4 x i32> undef, i32 %amt, i32 0
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%shamt = shufflevector <4 x i32> %tmp0, <4 x i32> undef, <4 x i32> zeroinitializer
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%shl = shl <4 x i32> %val, %shamt
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store <4 x i32> %shl, <4 x i32>* %dst
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ret void
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}
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define void @shift5b(<4 x i32> %val, <4 x i32>* %dst, i32* %pamt) nounwind {
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entry:
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; CHECK: shift5b:
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; CHECK: movd
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; CHECK-NEXT: psrad
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%amt = load i32* %pamt
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%tmp0 = insertelement <4 x i32> undef, i32 %amt, i32 0
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%shamt = shufflevector <4 x i32> %tmp0, <4 x i32> undef, <4 x i32> zeroinitializer
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%shr = ashr <4 x i32> %val, %shamt
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store <4 x i32> %shr, <4 x i32>* %dst
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ret void
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}
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define void @shift5c(<4 x i32> %val, <4 x i32>* %dst, i32 %amt) nounwind {
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entry:
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; CHECK: shift5c:
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; CHECK: movd
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; CHECK-NEXT: pslld
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%tmp0 = insertelement <4 x i32> undef, i32 %amt, i32 0
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%shamt = shufflevector <4 x i32> %tmp0, <4 x i32> undef, <4 x i32> zeroinitializer
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%shl = shl <4 x i32> %val, %shamt
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store <4 x i32> %shl, <4 x i32>* %dst
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ret void
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}
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define void @shift5d(<4 x i32> %val, <4 x i32>* %dst, i32 %amt) nounwind {
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entry:
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; CHECK: shift5d:
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; CHECK: movd
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; CHECK-NEXT: psrad
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%tmp0 = insertelement <4 x i32> undef, i32 %amt, i32 0
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%shamt = shufflevector <4 x i32> %tmp0, <4 x i32> undef, <4 x i32> zeroinitializer
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%shr = ashr <4 x i32> %val, %shamt
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store <4 x i32> %shr, <4 x i32>* %dst
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ret void
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}
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