forked from OSchip/llvm-project
18 lines
515 B
LLVM
18 lines
515 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -verify-machineinstrs \
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; RUN: -mtriple=aarch64-unknown-unknown < %s | FileCheck %s
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declare i64 @llvm.abs.i64(i64, i1 immarg)
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define i64@neg_abs(i64 %x) {
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; CHECK-LABEL: neg_abs:
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; CHECK: // %bb.0:
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; CHECK-NEXT: asr x8, x0, #63
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; CHECK-NEXT: eor x9, x0, x8
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; CHECK-NEXT: sub x0, x8, x9
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; CHECK-NEXT: ret
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%abs = tail call i64 @llvm.abs.i64(i64 %x, i1 true)
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%neg = sub nsw i64 0, %abs
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ret i64 %neg
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}
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