xref: /aosp_15_r20/external/llvm/test/Transforms/SimplifyCFG/PR16069.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; NOTE: Assertions have been autogenerated by update_test_checks.py
2*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -simplifycfg -S | FileCheck %s
3*9880d681SAndroid Build Coastguard Worker
4*9880d681SAndroid Build Coastguard Worker@b = extern_weak global i32
5*9880d681SAndroid Build Coastguard Worker
6*9880d681SAndroid Build Coastguard Workerdefine i32 @foo(i1 %y) {
7*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @foo(
8*9880d681SAndroid Build Coastguard Worker; CHECK:         [[COND_I:%.*]] = phi i32 [ srem (i32 1, i32 zext (i1 icmp eq (i32* @b, i32* null) to i32)), %bb2 ], [ 0, %0 ]
9*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    ret i32 [[COND_I]]
10*9880d681SAndroid Build Coastguard Worker;
11*9880d681SAndroid Build Coastguard Worker  br i1 %y, label %bb1, label %bb2
12*9880d681SAndroid Build Coastguard Workerbb1:
13*9880d681SAndroid Build Coastguard Worker  br label %bb3
14*9880d681SAndroid Build Coastguard Workerbb2:
15*9880d681SAndroid Build Coastguard Worker  br label %bb3
16*9880d681SAndroid Build Coastguard Workerbb3:
17*9880d681SAndroid Build Coastguard Worker  %cond.i = phi i32 [ 0, %bb1 ], [ srem (i32 1, i32 zext (i1 icmp eq (i32* @b, i32* null) to i32)), %bb2 ]
18*9880d681SAndroid Build Coastguard Worker  ret i32 %cond.i
19*9880d681SAndroid Build Coastguard Worker}
20*9880d681SAndroid Build Coastguard Worker
21*9880d681SAndroid Build Coastguard Workerdefine i32 @foo2(i1 %x) {
22*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @foo2(
23*9880d681SAndroid Build Coastguard Worker; CHECK:         [[COND:%.*]] = phi i32 [ 0, %bb1 ], [ srem (i32 1, i32 zext (i1 icmp eq (i32* @b, i32* null) to i32)), %bb0 ]
24*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT:    ret i32 [[COND]]
25*9880d681SAndroid Build Coastguard Worker;
26*9880d681SAndroid Build Coastguard Workerbb0:
27*9880d681SAndroid Build Coastguard Worker  br i1 %x, label %bb1, label %bb2
28*9880d681SAndroid Build Coastguard Workerbb1:
29*9880d681SAndroid Build Coastguard Worker  br label %bb2
30*9880d681SAndroid Build Coastguard Workerbb2:
31*9880d681SAndroid Build Coastguard Worker  %cond = phi i32 [ 0, %bb1 ], [ srem (i32 1, i32 zext (i1 icmp eq (i32* @b, i32* null) to i32)), %bb0 ]
32*9880d681SAndroid Build Coastguard Worker  ret i32 %cond
33*9880d681SAndroid Build Coastguard Worker}
34