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f8d448d5e5
Post-commit feedback (https://reviews.llvm.org/D156565#4654773) found that the changes in 84a3aadf0f2483dde0acfc4e79f2a075a5f35bd1 caused us to diagnose use of VLAs in C89 mode by default which was an unintended change. This adds -Wvla-cxx-extension as a warning group and adds the C++- specific warnings to it while leaving the C warnings under -Wvla-extension. -Wvla-cxx-extension is then added to -Wall.
25 lines
911 B
C
25 lines
911 B
C
/* RUN: %clang_cc1 -verify=off -std=c89 %s
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* RUN: %clang_cc1 -verify=off -Wall -std=c89 %s
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* RUN: %clang_cc1 -verify -pedantic -std=c89 %s
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* RUN: %clang_cc1 -verify -Wvla-extension -std=c89 %s
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* RUN: %clang_cc1 -verify=off -Wvla-cxx-extension -std=c89 %s
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* RUN: %clang_cc1 -verify=off -pedantic -std=c99 %s
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* RUN: %clang_cc1 -verify=off -Wall -std=c99 %s
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* RUN: %clang_cc1 -verify=off -std=c99 -Wvla-extension %s
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* The next run line still issues the extension warning because VLAs are an
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* extension in C89, but the line after it will issue the congratulatory
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* diagnostic.
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* RUN: %clang_cc1 -verify -Wvla -std=c89 %s
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* RUN: %clang_cc1 -verify=wvla -Wvla -std=c99 %s
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*/
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/* off-no-diagnostics */
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void func(int n) {
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int array[n]; /* expected-warning {{variable length arrays are a C99 feature}}
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wvla-warning {{variable length array used}}
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*/
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(void)array;
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}
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