23 lines
661 B
LLVM
23 lines
661 B
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=x86_64-unknown -mattr=lzcnt | FileCheck %s
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; Make sure we emit opoosite setcc instructions.
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define i64 @pr35399(i64, i8*, i8*) {
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; CHECK-LABEL: pr35399:
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; CHECK: # %bb.0:
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; CHECK-NEXT: lzcntq %rdi, %rax
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; CHECK-NEXT: setae (%rsi)
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; CHECK-NEXT: setb (%rdx)
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; CHECK-NEXT: retq
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%4 = tail call i64 @llvm.ctlz.i64(i64 %0, i1 false)
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%5 = icmp ne i64 %0, 0
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%6 = zext i1 %5 to i8
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store i8 %6, i8* %1, align 1
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%7 = xor i1 %5, true
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%8 = zext i1 %7 to i8
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store i8 %8, i8* %2, align 1
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ret i64 %4
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}
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declare i64 @llvm.ctlz.i64(i64, i1)
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