mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-01 16:33:37 +01:00
21 lines
406 B
LLVM
21 lines
406 B
LLVM
; This test shows a case where SCCP is incorrectly eliminating the PHI node
|
|
; because it thinks it has a constant 0 value, when it really doesn't.
|
|
|
|
; RUN: llvm-upgrade < %s | llvm-as | opt -sccp | llvm-dis | grep phi
|
|
|
|
int "test"(int %A, bool %c) {
|
|
bb1:
|
|
br label %BB2
|
|
BB2:
|
|
%V = phi int [0, %bb1], [%A, %BB4]
|
|
br label %BB3
|
|
|
|
BB3:
|
|
br bool %c, label %BB4, label %BB5
|
|
BB4:
|
|
br label %BB2
|
|
|
|
BB5:
|
|
ret int %V
|
|
}
|