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24 lines
482 B
LLVM
24 lines
482 B
LLVM
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; Test that GCSE uses basicaa to do alias analysis, which is capable of
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; disambiguating some obvious cases. All loads should be removable in
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; this testcase.
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; RUN: if as < %s | opt -basicaa -gcse -instcombine -dce | dis | grep load
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; RUN: then exit 1
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; RUN: else exit 0
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; RUN: fi
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%A = global int 7
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%B = global int 8
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implementation
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int %test() {
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%A1 = load int* %A
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store int 123, int* %B ; Store cannot alias %A
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%A2 = load int* %A
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%X = sub int %A1, %A2
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ret int %X
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}
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