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23 lines
814 B
LLVM
23 lines
814 B
LLVM
; RUN: opt < %s -instcombine -S | FileCheck %s
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define <4 x i32> @psignd_3(<4 x i32> %a, <4 x i32> %b) nounwind ssp {
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entry:
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%cmp = icmp slt <4 x i32> %b, zeroinitializer
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%sext = sext <4 x i1> %cmp to <4 x i32>
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%sub = sub nsw <4 x i32> zeroinitializer, %a
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%0 = icmp slt <4 x i32> %sext, zeroinitializer
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%sext3 = sext <4 x i1> %0 to <4 x i32>
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%1 = xor <4 x i32> %sext3, <i32 -1, i32 -1, i32 -1, i32 -1>
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%2 = and <4 x i32> %a, %1
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%3 = and <4 x i32> %sext3, %sub
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%cond = or <4 x i32> %2, %3
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ret <4 x i32> %cond
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; CHECK: ashr <4 x i32> %b, <i32 31, i32 31, i32 31, i32 31>
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; CHECK: sub nsw <4 x i32> zeroinitializer, %a
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; CHECK: xor <4 x i32> %b.lobit, <i32 -1, i32 -1, i32 -1, i32 -1>
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; CHECK: and <4 x i32> %a, %0
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; CHECK: and <4 x i32> %b.lobit, %sub
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; CHECK: or <4 x i32> %1, %2
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}
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