1 ; RUN: llc %s -o - -aarch64-enable-atomic-cfg-tidy=0 | FileCheck %s
2 ; Check that ANDS (tst) is not merged with ADD when the immediate
4 ; <rdar://problem/16693089>
5 target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
6 target triple = "arm64-apple-ios"
9 ; CHECK: add [[REG:w[0-9]+]], w{{[0-9]+}}, #1
10 ; CHECK: tst [[REG]], #0x1
11 define void @tst1(i1 %tst, i32 %true) {
13 br i1 %tst, label %for.end, label %for.body
15 for.body: ; preds = %for.body, %entry
16 %result.09 = phi i32 [ %add2.result.0, %for.body ], [ 1, %entry ]
17 %i.08 = phi i32 [ %inc, %for.body ], [ 2, %entry ]
18 %and = and i32 %i.08, 1
19 %cmp1 = icmp eq i32 %and, 0
20 %add2.result.0 = select i1 %cmp1, i32 %true, i32 %result.09
21 %inc = add nsw i32 %i.08, 1
22 %cmp = icmp slt i32 %i.08, %true
23 br i1 %cmp, label %for.body, label %for.cond.for.end_crit_edge
25 for.cond.for.end_crit_edge: ; preds = %for.body
26 %add2.result.0.lcssa = phi i32 [ %add2.result.0, %for.body ]
29 for.end: ; preds = %for.cond.for.end_crit_edge, %entry