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; RUN: opt -simplifycfg -S < %s | FileCheck %s
declare { i32, i1 } @llvm.uadd.with.overflow.i32(i32, i32) #1
define i32 @f(i32 %a, i32 %b) #0 {
entry:
%uadd = tail call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 %a, i32 %b)
%cmp = extractvalue { i32, i1 } %uadd, 1
br i1 %cmp, label %return, label %if.end
if.end: ; preds = %entry
%0 = extractvalue { i32, i1 } %uadd, 0
br label %return
return: ; preds = %entry, %if.end
%retval.0 = phi i32 [ %0, %if.end ], [ 0, %entry ]
ret i32 %retval.0
; CHECK-LABEL: @f(
; CHECK-NOT: phi
; CHECK: select
}
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