29 lines
761 B
C
29 lines
761 B
C
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// RUN: %clang_cc1 -emit-llvm -o - %s
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// <rdar://problem/6108358>
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/* For posterity, the issue here begins initial "char []" decl for
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* s. This is a tentative definition and so a global was being
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* emitted, however the mapping in GlobalDeclMap referred to a bitcast
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* of this global.
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*
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* The problem was that later when the correct definition for s is
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* emitted we were doing a RAUW on the old global which was destroying
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* the bitcast in the GlobalDeclMap (since it cannot be replaced
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* properly), leaving a dangling pointer.
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*
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* The purpose of bar is just to trigger a use of the old decl
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* sometime after the dangling pointer has been introduced.
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*/
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char s[];
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static void bar(void *db) {
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eek(s);
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}
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char s[5] = "hi";
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int foo() {
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bar(0);
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}
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