24 lines
739 B
LLVM
24 lines
739 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=s390x-linux-gnu | FileCheck %s
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define i8 @test(i8 %x) {
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; CHECK-LABEL: test:
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; CHECK: # %bb.0:
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; CHECK-NEXT: slgfi %r0, 1
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; CHECK-NEXT: ipm %r0
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; CHECK-NEXT: afi %r0, -536870912
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; CHECK-NEXT: srl %r0, 31
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; CHECK-NEXT: ar %r2, %r0
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; CHECK-NEXT: br %r14
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%usubo = tail call { i64, i1 } @llvm.usub.with.overflow.i64(i64 undef, i64 1)
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%ov = extractvalue { i64, i1 } %usubo, 1
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%ovext = zext i1 %ov to i8
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%ret = add i8 %x, %ovext
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ret i8 %ret
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}
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; Function Attrs: nounwind readnone speculatable
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declare { i64, i1 } @llvm.usub.with.overflow.i64(i64, i64) #0
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attributes #0 = { nounwind readnone speculatable }
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