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| author | Reid Kleckner <rnk@google.com> | 2017-05-22 21:42:58 +0000 |
|---|---|---|
| committer | Reid Kleckner <rnk@google.com> | 2017-05-22 21:42:58 +0000 |
| commit | eb00ee07beff4fab367fa16b8074ba9856469f52 (patch) | |
| tree | 3637cd56cb1854a57d96615c43e6062e6ebf031e /clang/test/Frontend/system-header-line-directive.c | |
| parent | b238cb8fbca233fef4a65e1ef3e28bb4f1eb42f2 (diff) | |
| download | bcm5719-llvm-eb00ee07beff4fab367fa16b8074ba9856469f52.tar.gz bcm5719-llvm-eb00ee07beff4fab367fa16b8074ba9856469f52.zip | |
Give files from #line the characteristics of the current file
This allows #line directives to appear in system headers that have code
that clang would normally warn on. This is compatible with GCC, which is
easy to test by running `gcc -E`.
Fixes PR30752
llvm-svn: 303582
Diffstat (limited to 'clang/test/Frontend/system-header-line-directive.c')
| -rw-r--r-- | clang/test/Frontend/system-header-line-directive.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/clang/test/Frontend/system-header-line-directive.c b/clang/test/Frontend/system-header-line-directive.c new file mode 100644 index 00000000000..16dde643a5b --- /dev/null +++ b/clang/test/Frontend/system-header-line-directive.c @@ -0,0 +1,20 @@ +// RUN: %clang_cc1 -Wall %s -isystem %S/Inputs/SystemHeaderPrefix -verify +// RUN: %clang_cc1 %s -E -o - -isystem %S/Inputs/SystemHeaderPrefix | FileCheck %s +#include <noline.h> +#include <line.h> + +// This tests that "#line" directives in system headers preserve system +// header-ness just like GNU line markers that don't have filenames. This was +// PR30752. + +// expected-no-diagnostics + +// CHECK: # {{[0-9]+}} "{{.*}}system-header-line-directive.c" 2 +// CHECK: # 1 "{{.*}}noline.h" 1 3 +// CHECK: foo(); +// CHECK: # 4 "{{.*}}system-header-line-directive.c" 2 +// CHECK: # 1 "{{.*}}line.h" 1 3 +// The "3" below indicates that "foo.h" is considered a system header. +// CHECK: # 1 "foo.h" 3 +// CHECK: foo(); +// CHECK: # {{[0-9]+}} "{{.*}}system-header-line-directive.c" 2 |
