22 lines
767 B
LLVM
22 lines
767 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=x86_64-- -O0 < %s | FileCheck %s
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; FIXME: This is currently miscompiled due to an eflags clobber.
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define i64 @adder(i64 %lhs, i64 %rhs) {
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; CHECK-LABEL: adder:
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; CHECK: # %bb.0:
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; CHECK-NEXT: addq %rsi, %rdi
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; CHECK-NEXT: seto %al
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; CHECK-NEXT: xorl %eax, %eax
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; CHECK-NEXT: # kill: def $rax killed $eax
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; CHECK-NEXT: movl $148, %ecx
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; CHECK-NEXT: cmovoq %rcx, %rax
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; CHECK-NEXT: retq
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%res = call { i64, i1 } @llvm.sadd.with.overflow.i64(i64 %lhs, i64 %rhs)
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%errorbit = extractvalue { i64, i1 } %res, 1
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%errorval = select i1 %errorbit, i64 148, i64 0
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ret i64 %errorval
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}
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declare { i64, i1 } @llvm.sadd.with.overflow.i64(i64 %a, i64 %b)
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