llvm-6502/test/Analysis/BasicAA/phi-aa.ll
2009-10-14 01:45:10 +00:00

30 lines
588 B
LLVM

; RUN: opt < %s -basicaa -aa-eval -print-all-alias-modref-info -disable-output |& grep {NoAlias:.*%P,.*@Z}
; rdar://7282591
@X = common global i32 0
@Y = common global i32 0
@Z = common global i32 0
define void @foo(i32 %cond) nounwind ssp {
entry:
%"alloca point" = bitcast i32 0 to i32
%tmp = icmp ne i32 %cond, 0
br i1 %tmp, label %bb, label %bb1
bb:
br label %bb2
bb1:
br label %bb2
bb2:
%P = phi i32* [ @X, %bb ], [ @Y, %bb1 ]
%tmp1 = load i32* @Z, align 4
store i32 123, i32* %P, align 4
%tmp2 = load i32* @Z, align 4
br label %return
return:
ret void
}