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| author | Alexander Kornienko <alexfh@google.com> | 2012-08-29 16:56:24 +0000 |
|---|---|---|
| committer | Alexander Kornienko <alexfh@google.com> | 2012-08-29 16:56:24 +0000 |
| commit | c0b4928df87a856696aee603ca994739df476675 (patch) | |
| tree | 36eac4a91b4f4a5684b87e55bfa8807211d47c15 /clang/test/Preprocessor/pragma-pushpop-macro.c | |
| parent | 771f1607588293a2bd0f3d2a7686792cdcc5efee (diff) | |
| download | bcm5719-llvm-c0b4928df87a856696aee603ca994739df476675.tar.gz bcm5719-llvm-c0b4928df87a856696aee603ca994739df476675.zip | |
Fixed a problem with #pragma push_macro/pop_macro implementation.
Summary:
The problem was with the following sequence:
#pragma push_macro("long")
#undef long
#pragma pop_macro("long")
in case when "long" didn't represent a macro.
Fixed crash and removed code duplication for #undef/pop_macro case. Added regression tests.
Reviewers: doug.gregor, klimek
Reviewed By: doug.gregor
CC: cfe-commits, chapuni
Differential Revision: http://llvm-reviews.chandlerc.com/D31
llvm-svn: 162845
Diffstat (limited to 'clang/test/Preprocessor/pragma-pushpop-macro.c')
| -rw-r--r-- | clang/test/Preprocessor/pragma-pushpop-macro.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/clang/test/Preprocessor/pragma-pushpop-macro.c b/clang/test/Preprocessor/pragma-pushpop-macro.c index 08a65704e4c..0aee074c55c 100644 --- a/clang/test/Preprocessor/pragma-pushpop-macro.c +++ b/clang/test/Preprocessor/pragma-pushpop-macro.c @@ -31,6 +31,22 @@ int pmy1 = Y; #define Y 4 int pmy2 = Y; +// The sequence push, define/undef, pop caused problems if macro was not +// previously defined. +#pragma push_macro("PREVIOUSLY_UNDEFINED1") +#undef PREVIOUSLY_UNDEFINED1 +#pragma pop_macro("PREVIOUSLY_UNDEFINED1") +#ifndef PREVIOUSLY_UNDEFINED1 +int Q; +#endif + +#pragma push_macro("PREVIOUSLY_UNDEFINED2") +#define PREVIOUSLY_UNDEFINED2 +#pragma pop_macro("PREVIOUSLY_UNDEFINED2") +#ifndef PREVIOUSLY_UNDEFINED2 +int P; +#endif + // CHECK: int pmx0 = 1 // CHECK: int pmy0 = 2 // CHECK: int pmx1 = 1 @@ -38,4 +54,5 @@ int pmy2 = Y; // CHECK: int pmx3 = 1 // CHECK: int pmy1 = 3 // CHECK: int pmy2 = 4 - +// CHECK: int Q; +// CHECK: int P; |
