xref: /aosp_15_r20/external/llvm/test/Transforms/IndVarSimplify/pr25576.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: opt -S -indvars < %s | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker
3*9880d681SAndroid Build Coastguard Workertarget datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
4*9880d681SAndroid Build Coastguard Workertarget triple = "x86_64-unknown-linux-gnu"
5*9880d681SAndroid Build Coastguard Worker
6*9880d681SAndroid Build Coastguard Workerdefine void @fn1() {
7*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @fn1(
8*9880d681SAndroid Build Coastguard Workerentry:
9*9880d681SAndroid Build Coastguard Worker  br label %for.cond.loopexit
10*9880d681SAndroid Build Coastguard Worker
11*9880d681SAndroid Build Coastguard Workerfor.cond.loopexit:                                ; preds = %for.inc7, %for.cond.loopexit, %entry
12*9880d681SAndroid Build Coastguard Worker  %c.1.lcssa = phi i32 [ %inc8, %for.inc7 ], [ 0, %for.cond.loopexit ], [ 0, %entry ]
13*9880d681SAndroid Build Coastguard Worker  br i1 undef, label %for.cond.loopexit, label %for.cond4.preheader
14*9880d681SAndroid Build Coastguard Worker
15*9880d681SAndroid Build Coastguard Workerfor.cond4.preheader:                              ; preds = %for.inc7, %for.cond.loopexit
16*9880d681SAndroid Build Coastguard Worker  %c.17 = phi i32 [ %inc8, %for.inc7 ], [ 0, %for.cond.loopexit ]
17*9880d681SAndroid Build Coastguard Worker  br label %for.body6
18*9880d681SAndroid Build Coastguard Worker
19*9880d681SAndroid Build Coastguard Workerfor.body6:                                        ; preds = %for.body6, %for.cond4.preheader
20*9880d681SAndroid Build Coastguard Worker  %inc14 = phi i32 [ 0, %for.cond4.preheader ], [ %inc, %for.body6 ]
21*9880d681SAndroid Build Coastguard Worker  %idxprom = zext i32 %inc14 to i64
22*9880d681SAndroid Build Coastguard Worker  %inc = add i32 %inc14, 1
23*9880d681SAndroid Build Coastguard Worker  %cmp5 = icmp ult i32 %inc, 2
24*9880d681SAndroid Build Coastguard Worker  br i1 %cmp5, label %for.body6, label %for.inc7
25*9880d681SAndroid Build Coastguard Worker
26*9880d681SAndroid Build Coastguard Workerfor.inc7:                                         ; preds = %for.body6
27*9880d681SAndroid Build Coastguard Worker  %inc.lcssa = phi i32 [ %inc, %for.body6 ]
28*9880d681SAndroid Build Coastguard Worker  %inc8 = add i32 %c.17, 1
29*9880d681SAndroid Build Coastguard Worker  %cmp = icmp ult i32 %inc8, %inc.lcssa
30*9880d681SAndroid Build Coastguard Worker  br i1 %cmp, label %for.cond4.preheader, label %for.cond.loopexit
31*9880d681SAndroid Build Coastguard Worker}
32