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https://github.com/c64scene-ar/llvm-6502.git
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12ff96854d
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17514 91177308-0d34-0410-b5e6-96231b3b80d8
25 lines
618 B
LLVM
25 lines
618 B
LLVM
; a load or store of a pointer indicates that the pointer is not null.
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; Any succeeding uses of the pointer should get this info
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;
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; XFAIL: *
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; RUN: llvm-as < %s | opt -cee -instcombine -simplifycfg | llvm-dis | not grep br
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implementation ; Functions:
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declare void %foo()
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declare void %bar()
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int %nullptr(int* %j) {
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bb0:
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store int 7, int* %j ; j != null
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%cond220 = seteq int* %j, null ; F
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br bool %cond220, label %bb3, label %bb4 ; direct branch
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bb3:
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call void %foo()
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ret int 4 ; Dead code
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bb4:
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call void %bar()
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ret int 3 ; Live code
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}
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