llvm-6502/test/Transforms/BasicAA/2004-01-29-InvariantMemory.llx
2004-01-30 22:18:47 +00:00

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; RUN: llvm-as < %s | opt -load-vn -gcse -instcombine | llvm-dis | not grep load
%X = constant [2 x int] [int 4, int 5]
int %test(int* %Y, long %idx) {
%P = getelementptr [2 x int]* %X, long 0, long %idx
%A = load int* %P ; Load from invariant memory
store int 4, int* %Y ; Store could not be to %X
%B = load int* %P
%C = sub int %A, %B
ret int %C
}