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llvm-project/clang/test/PCH/fuzzy-pch.c

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Allow some differences between the predefines buffer used to build a PCH file and the predefines buffer used when including the PCH file. We (explicitly) detect conflicting macro definitions (rejecting the PCH file) and about missing macro definitions (they'll be automatically pulled from the PCH file anyway). We're missing some checking to make sure that new macro definitions won't have any impact on the PCH file itself (e.g., #define'ing an identifier that the PCH file used). llvm-svn: 70316
2009-04-29 02:58:38 +08:00
// Test with pch.
Update tests to use %clang_cc1 instead of 'clang-cc' or 'clang -cc1'. - This is designed to make it obvious that %clang_cc1 is a "test variable" which is substituted. It is '%clang_cc1' instead of '%clang -cc1' because it can be useful to redefine what gets run as 'clang -cc1' (for example, to set a default target). llvm-svn: 91446
2009-12-16 04:14:24 +08:00
// RUN: %clang_cc1 -emit-pch -DFOO -o %t %S/variables.h
// RUN: %clang_cc1 -DBAR=int -include-pch %t -fsyntax-only -pedantic %s
// RUN: %clang_cc1 -DFOO -DBAR=int -include-pch %t -Werror %s
// RUN: not %clang_cc1 -DFOO -DBAR=int -DX=5 -include-pch %t -Werror %s
Allow some differences between the predefines buffer used to build a PCH file and the predefines buffer used when including the PCH file. We (explicitly) detect conflicting macro definitions (rejecting the PCH file) and about missing macro definitions (they'll be automatically pulled from the PCH file anyway). We're missing some checking to make sure that new macro definitions won't have any impact on the PCH file itself (e.g., #define'ing an identifier that the PCH file used). llvm-svn: 70316
2009-04-29 02:58:38 +08:00
BAR bar = 17;
#ifndef FOO
# error FOO was not defined
#endif
#if FOO != 1
# error FOO has the wrong definition
#endif
#ifndef BAR
# error BAR was not defined
#endif