llvm-6502/test/Transforms/SCCP/2002-05-20-MissedIncomingValue.ll
2003-09-16 15:29:54 +00:00

21 lines
391 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-as < %s | 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
}