1; RUN: llc -mtriple=aarch64-apple-darwin -O0 -fast-isel -fast-isel-abort=1 -verify-machineinstrs < %s | FileCheck %s
2
3; CHECK-LABEL: int_ext_opt
4define i64 @int_ext_opt(i8* %addr, i1 %c1, i1 %c2) {
5entry:
6  %0 = load i8, i8* %addr
7  br i1 %c1, label %bb1, label %bb2
8
9bb1:
10  %1 = zext i8 %0 to i64
11  br i1 %c2, label %bb2, label %exit
12
13bb2:
14  %2 = phi i64 [1, %entry], [%1, %bb1]
15  ret i64 %2
16
17exit:
18  ret i64 0
19}
20