1 ; RUN: llc < %s -march=thumb -mattr=+thumb2 | FileCheck %s 2 ; If-conversion defeats the purpose of this test, which is to check CBZ 3 ; generation, so use memory barrier instruction to make sure it doesn't 4 ; happen and we get actual branches. 5 6 define i32 @t1(i32 %a, i32 %b, i32 %c) { 7 ; CHECK: t1: 8 ; CHECK: cbz 9 %tmp2 = icmp eq i32 %a, 0 10 br i1 %tmp2, label %cond_false, label %cond_true 11 12 cond_true: 13 call void @llvm.memory.barrier(i1 true, i1 true, i1 true, i1 true, i1 false) 14 %tmp5 = add i32 %b, 1 15 %tmp6 = and i32 %tmp5, %c 16 ret i32 %tmp6 17 18 cond_false: 19 call void @llvm.memory.barrier(i1 true, i1 true, i1 true, i1 true, i1 false) 20 %tmp7 = add i32 %b, -1 21 %tmp8 = xor i32 %tmp7, %c 22 ret i32 %tmp8 23 } 24 25 declare void @llvm.memory.barrier(i1, i1, i1, i1, i1) nounwind 26
