llvm-project/llvm/test/CodeGen/X86/add-of-carry.ll

15 lines
344 B
LLVM

; RUN: llc < %s -march=x86 | FileCheck %s
; <rdar://problem/8449754>
define i32 @add32carry(i32 %sum, i32 %x) nounwind readnone ssp {
entry:
; CHECK: sbbl %ecx, %ecx
; CHECK-NOT: addl
; CHECK: subl %ecx, %eax
%add4 = add i32 %x, %sum
%cmp = icmp ult i32 %add4, %x
%inc = zext i1 %cmp to i32
%z.0 = add i32 %add4, %inc
ret i32 %z.0
}