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26 lines
694 B
LLVM
26 lines
694 B
LLVM
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; RUN: llc < %s -march=x86-64 -mcpu=skx | FileCheck %s
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define i8 @mask8(i8 %x) {
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%m0 = bitcast i8 %x to <8 x i1>
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%m1 = xor <8 x i1> %m0, <i1 -1, i1 -1, i1 -1, i1 -1, i1 -1, i1 -1, i1 -1, i1 -1>
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%ret = bitcast <8 x i1> %m1 to i8
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ret i8 %ret
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; CHECK: mask8
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; CHECK: knotb
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; CHECK: ret
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}
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define void @mask8_mem(i8* %ptr) {
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%x = load i8* %ptr, align 4
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%m0 = bitcast i8 %x to <8 x i1>
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%m1 = xor <8 x i1> %m0, <i1 -1, i1 -1, i1 -1, i1 -1, i1 -1, i1 -1, i1 -1, i1 -1>
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%ret = bitcast <8 x i1> %m1 to i8
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store i8 %ret, i8* %ptr, align 4
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ret void
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; CHECK-LABEL: mask8_mem
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; CHECK: kmovb (%rdi), %k{{[0-7]}}
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; CHECK-NEXT: knotb
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; CHECK-NEXT: kmovb %k{{[0-7]}}, (%rdi)
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; CHECK: ret
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}
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