xref: /aosp_15_r20/external/llvm/test/Transforms/Sink/convergent.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: opt -sink -S < %s | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker
3*9880d681SAndroid Build Coastguard Worker; Verify that IR sinking does not move convergent operations to
4*9880d681SAndroid Build Coastguard Worker; blocks that are not control equivalent.
5*9880d681SAndroid Build Coastguard Worker
6*9880d681SAndroid Build Coastguard Worker; CHECK: define i32 @foo
7*9880d681SAndroid Build Coastguard Worker; CHECK: entry
8*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: call i32 @bar
9*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: br i1 %arg
10*9880d681SAndroid Build Coastguard Worker
11*9880d681SAndroid Build Coastguard Workerdefine i32 @foo(i1 %arg) {
12*9880d681SAndroid Build Coastguard Workerentry:
13*9880d681SAndroid Build Coastguard Worker  %c = call i32 @bar() readonly convergent
14*9880d681SAndroid Build Coastguard Worker  br i1 %arg, label %then, label %end
15*9880d681SAndroid Build Coastguard Worker
16*9880d681SAndroid Build Coastguard Workerthen:
17*9880d681SAndroid Build Coastguard Worker  ret i32 %c
18*9880d681SAndroid Build Coastguard Worker
19*9880d681SAndroid Build Coastguard Workerend:
20*9880d681SAndroid Build Coastguard Worker  ret i32 0
21*9880d681SAndroid Build Coastguard Worker}
22*9880d681SAndroid Build Coastguard Worker
23*9880d681SAndroid Build Coastguard Workerdeclare i32 @bar() readonly convergent
24