[cfe-commits] r138842 - in /cfe/trunk: include/clang/Basic/DiagnosticLexKinds.td include/clang/Lex/Preprocessor.h lib/Frontend/DependencyFile.cpp lib/Lex/PPDirectives.cpp lib/Lex/Pragma.cpp test/Misc/warning-flags.c test/Preprocessor/missing-system-header.c test/Preprocessor/missing-system-header.h
Eli Friedman
eli.friedman at gmail.com
Tue Aug 30 16:07:51 PDT 2011
Author: efriedma
Date: Tue Aug 30 18:07:51 2011
New Revision: 138842
URL: http://llvm.org/viewvc/llvm-project?rev=138842&view=rev
Log:
Change err_pp_file_not_found back to an Error; when it's a Warning, we suppress it in system headers. And it is not a good idea to suppress it in system headers. (This was originally changed in r134996 to implement -MG.)
Fixes <rdar://10041960>. And also brings down the number of warnings without a flag by one :)
Added:
cfe/trunk/test/Preprocessor/missing-system-header.c
cfe/trunk/test/Preprocessor/missing-system-header.h
Modified:
cfe/trunk/include/clang/Basic/DiagnosticLexKinds.td
cfe/trunk/include/clang/Lex/Preprocessor.h
cfe/trunk/lib/Frontend/DependencyFile.cpp
cfe/trunk/lib/Lex/PPDirectives.cpp
cfe/trunk/lib/Lex/Pragma.cpp
cfe/trunk/test/Misc/warning-flags.c
Modified: cfe/trunk/include/clang/Basic/DiagnosticLexKinds.td
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/DiagnosticLexKinds.td?rev=138842&r1=138841&r2=138842&view=diff
==============================================================================
--- cfe/trunk/include/clang/Basic/DiagnosticLexKinds.td (original)
+++ cfe/trunk/include/clang/Basic/DiagnosticLexKinds.td Tue Aug 30 18:07:51 2011
@@ -186,7 +186,7 @@
def err_pp_invalid_directive : Error<"invalid preprocessing directive">;
def err_pp_hash_error : Error<"#error%0">;
-def warn_pp_file_not_found : Warning<"'%0' file not found">, DefaultFatal;
+def err_pp_file_not_found : Error<"'%0' file not found">, DefaultFatal;
def err_pp_error_opening_file : Error<
"error opening file '%0': %1">, DefaultFatal;
def err_pp_empty_filename : Error<"empty filename">;
Modified: cfe/trunk/include/clang/Lex/Preprocessor.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Lex/Preprocessor.h?rev=138842&r1=138841&r2=138842&view=diff
==============================================================================
--- cfe/trunk/include/clang/Lex/Preprocessor.h (original)
+++ cfe/trunk/include/clang/Lex/Preprocessor.h Tue Aug 30 18:07:51 2011
@@ -105,6 +105,7 @@
// State that is set before the preprocessor begins.
bool KeepComments : 1;
bool KeepMacroComments : 1;
+ bool SuppressIncludeNotFoundError : 1;
// State that changes while the preprocessor runs:
bool InMacroArgs : 1; // True if parsing fn macro invocation args.
@@ -344,6 +345,14 @@
bool getCommentRetentionState() const { return KeepComments; }
+ void SetSuppressIncludeNotFoundError(bool Suppress) {
+ SuppressIncludeNotFoundError = Suppress;
+ }
+
+ bool GetSuppressIncludeNotFoundError() {
+ return SuppressIncludeNotFoundError;
+ }
+
/// isCurrentLexer - Return true if we are lexing directly from the specified
/// lexer.
bool isCurrentLexer(const PreprocessorLexer *L) const {
Modified: cfe/trunk/lib/Frontend/DependencyFile.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/DependencyFile.cpp?rev=138842&r1=138841&r2=138842&view=diff
==============================================================================
--- cfe/trunk/lib/Frontend/DependencyFile.cpp (original)
+++ cfe/trunk/lib/Frontend/DependencyFile.cpp Tue Aug 30 18:07:51 2011
@@ -86,14 +86,8 @@
}
// Disable the "file not found" diagnostic if the -MG option was given.
- // FIXME: Ideally this would live in the driver, but we don't have the ability
- // to remap individual diagnostics there without creating a DiagGroup, in
- // which case we would need to prevent the group name from showing up in
- // diagnostics.
- if (Opts.AddMissingHeaderDeps) {
- PP.getDiagnostics().setDiagnosticMapping(diag::warn_pp_file_not_found,
- diag::MAP_IGNORE, SourceLocation());
- }
+ if (Opts.AddMissingHeaderDeps)
+ PP.SetSuppressIncludeNotFoundError(true);
PP.addPPCallbacks(new DependencyFileCallback(&PP, OS, Opts));
}
Modified: cfe/trunk/lib/Lex/PPDirectives.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Lex/PPDirectives.cpp?rev=138842&r1=138841&r2=138842&view=diff
==============================================================================
--- cfe/trunk/lib/Lex/PPDirectives.cpp (original)
+++ cfe/trunk/lib/Lex/PPDirectives.cpp Tue Aug 30 18:07:51 2011
@@ -1187,7 +1187,8 @@
End, SearchPath, RelativePath);
if (File == 0) {
- Diag(FilenameTok, diag::warn_pp_file_not_found) << Filename;
+ if (!SuppressIncludeNotFoundError)
+ Diag(FilenameTok, diag::err_pp_file_not_found) << Filename;
return;
}
Modified: cfe/trunk/lib/Lex/Pragma.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Lex/Pragma.cpp?rev=138842&r1=138841&r2=138842&view=diff
==============================================================================
--- cfe/trunk/lib/Lex/Pragma.cpp (original)
+++ cfe/trunk/lib/Lex/Pragma.cpp Tue Aug 30 18:07:51 2011
@@ -368,7 +368,8 @@
const DirectoryLookup *CurDir;
const FileEntry *File = LookupFile(Filename, isAngled, 0, CurDir, NULL, NULL);
if (File == 0) {
- Diag(FilenameTok, diag::warn_pp_file_not_found) << Filename;
+ if (!SuppressIncludeNotFoundError)
+ Diag(FilenameTok, diag::err_pp_file_not_found) << Filename;
return;
}
Modified: cfe/trunk/test/Misc/warning-flags.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Misc/warning-flags.c?rev=138842&r1=138841&r2=138842&view=diff
==============================================================================
--- cfe/trunk/test/Misc/warning-flags.c (original)
+++ cfe/trunk/test/Misc/warning-flags.c Tue Aug 30 18:07:51 2011
@@ -17,7 +17,7 @@
The list of warnings below should NEVER grow. It should gradually shrink to 0.
-CHECK: Warnings without flags (313):
+CHECK: Warnings without flags (312):
CHECK-NEXT: auto_storage_class
CHECK-NEXT: backslash_newline_space
CHECK-NEXT: charize_microsoft_ext
@@ -253,7 +253,6 @@
CHECK-NEXT: warn_pp_convert_lhs_to_positive
CHECK-NEXT: warn_pp_convert_rhs_to_positive
CHECK-NEXT: warn_pp_expr_overflow
-CHECK-NEXT: warn_pp_file_not_found
CHECK-NEXT: warn_pp_line_decimal
CHECK-NEXT: warn_pragma_align_expected_equal
CHECK-NEXT: warn_pragma_align_invalid_option
Added: cfe/trunk/test/Preprocessor/missing-system-header.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Preprocessor/missing-system-header.c?rev=138842&view=auto
==============================================================================
--- cfe/trunk/test/Preprocessor/missing-system-header.c (added)
+++ cfe/trunk/test/Preprocessor/missing-system-header.c Tue Aug 30 18:07:51 2011
@@ -0,0 +1,2 @@
+// RUN: %clang_cc1 -verify -fsyntax-only %s
+#include "missing-system-header.h"
Added: cfe/trunk/test/Preprocessor/missing-system-header.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Preprocessor/missing-system-header.h?rev=138842&view=auto
==============================================================================
--- cfe/trunk/test/Preprocessor/missing-system-header.h (added)
+++ cfe/trunk/test/Preprocessor/missing-system-header.h Tue Aug 30 18:07:51 2011
@@ -0,0 +1,2 @@
+#pragma clang system_header
+#include "not exist" // expected-error {{file not found}}
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