59dadd178b
`HeaderSearch` currently assumes `LookupFileCache` is eventually populated in `LookupFile`. However, that's not always the case with `-fms-compatibility` and its early returns. This patch adds a defensive check that the iterator pulled out of the cache is actually valid before using it. (This bug was introduced in D119721. Before that, the cache was initialized to `0` - essentially the `search_dir_begin()` iterator.) Reviewed By: dexonsmith, erichkeane Differential Revision: https://reviews.llvm.org/D122237
23 lines
549 B
C
23 lines
549 B
C
// RUN: rm -rf %t
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// RUN: split-file %s %t
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// RUN: %clang_cc1 -Eonly -fms-compatibility %t/test.c -I %t/include -verify
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//--- test.c
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#include "x/header.h"
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#include "z/header.h"
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// expected-warning-re@include/y/header.h:1 {{#include resolved using non-portable Microsoft search rules as: {{.*}}x/culprit.h}}
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// expected-error@include/z/header.h:1 {{'culprit.h' file not found}}
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//--- include/x/header.h
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#include "y/header.h"
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//--- include/y/header.h
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#include "culprit.h"
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//--- include/x/culprit.h
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//--- include/z/header.h
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#include "culprit.h"
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