llvm/test/Analysis/BasicAA/2006-03-03-BadArraySubscript.ll
2006-12-02 04:23:10 +00:00

32 lines
1.3 KiB
LLVM

; RUN: llvm-upgrade < %s | llvm-as | opt -aa-eval -disable-output 2>&1 | grep '2 no alias respon'
;; TEST that A[1][0] may alias A[0][i].
void %test(int %N) {
entry:
%X = alloca [3 x [3 x int]] ; <[3 x [3 x int]]*> [#uses=4]
%tmp.24 = setgt int %N, 0 ; <bool> [#uses=1]
br bool %tmp.24, label %no_exit, label %loopexit
no_exit: ; preds = %no_exit, %entry
%i.0.0 = phi int [ 0, %entry ], [ %inc, %no_exit ] ; <int> [#uses=2]
%tmp.6 = getelementptr [3 x [3 x int]]* %X, int 0, int 0, int %i.0.0 ; <int*> [#uses=1]
store int 1, int* %tmp.6
%tmp.8 = getelementptr [3 x [3 x int]]* %X, int 0, int 0, int 0 ; <int*> [#uses=1]
%tmp.9 = load int* %tmp.8 ; <int> [#uses=1]
%tmp.11 = getelementptr [3 x [3 x int]]* %X, int 0, int 1, int 0 ; <int*> [#uses=1]
%tmp.12 = load int* %tmp.11 ; <int> [#uses=1]
%tmp.13 = add int %tmp.12, %tmp.9 ; <int> [#uses=1]
%inc = add int %i.0.0, 1 ; <int> [#uses=2]
%tmp.2 = setlt int %inc, %N ; <bool> [#uses=1]
br bool %tmp.2, label %no_exit, label %loopexit
loopexit: ; preds = %no_exit, %entry
%Y.0.1 = phi int [ 0, %entry ], [ %tmp.13, %no_exit ] ; <int> [#uses=1]
%tmp.4 = getelementptr [3 x [3 x int]]* %X, int 0, int 0 ; <[3 x int]*> [#uses=1]
%tmp.15 = call int (...)* %foo( [3 x int]* %tmp.4, int %Y.0.1 ) ; <int> [#uses=0]
ret void
}
declare int %foo(...)