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2011-08-31Switch the "no module found" default-fatal warning to a default-fatal error.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138909 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-30Change err_pp_file_not_found back to an Error; when it's a Warning, we ↵Eli Friedman
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 :) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138842 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26Introduce support for a simple module import declaration, whichDouglas Gregor
loads the named module. The syntax itself is intentionally hideous and will be replaced at some later point with something more palatable. For now, we're focusing on the semantics: - Module imports are handled first by the preprocessor (to get macro definitions) and then the same tokens are also handled by the parser (to get declarations). If both happen (as in normal compilation), the second one is redundant, because we currently have no way to hide macros or declarations when loading a module. Chris gets credit for this mad-but-workable scheme. - The Preprocessor now holds on to a reference to a module loader, which is responsible for loading named modules. CompilerInstance is the only important module loader: it now knows how to create and wire up an AST reader on demand to actually perform the module load. - We search for modules in the include path, using the module name with the suffix ".pcm" (precompiled module) for the file name. This is a temporary hack; we hope to improve the situation in the future. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138679 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-17Fix -ferror-limit= to properly emit notes following the last errorDouglas Gregor
messages. Fi from David Blaikie, tests from Nikola Smiljanic! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137851 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-17Fix this test which had encoded the typo fixed in r137814.Chandler Carruth
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137821 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12Place err_cfstring_literal_not_string_constant and warn_cfstring_truncated ↵Ted Kremenek
under "-WCFString" flag. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137508 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12Place diagnostic warn_stringcompare under the "-Wstring-compare" flag.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137507 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12Place warnings related to incorrect "main()" declaration under "-Wmain".Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137506 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12Add -Wtypename-missing flag for diagnostic warn_typename_missing.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137505 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-11Add diagtool-based test where we enforce that no additional warnings can be ↵Ted Kremenek
added to Clang without a -W flag. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137369 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28Fix a test case that was intermittently failing. The issue was that ↵Richard Trieu
instantiations are not stored in an order preserving structure, so the print order may be impacted. Modified test case to do two FileCheck passes to ensure that both instantiations are in the same place. Test originially commited at r136306 and temporarily silenced at r136348. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136385 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28test/Misc/ast-dump-templates.cpp: Disable this temporarily due to unstable ↵NAKAMURA Takumi
output. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136348 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-28Add template instantiations to the output of -ast-dump.Richard Trieu
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136306 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-14Switch the diagnostic messages about macros to use the terms 'expanded'Chandler Carruth
and 'expansions' rather than 'instantiated' and 'contexts'. This is the first of several patches migrating Clang's terminology surrounding macros from 'instantiation' to 'expansion'. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135135 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-11Apply patch from Richard Trieu to fix PR9548:Chandler Carruth
When two different types has the same text representation in the same diagnostic message, print an a.k.a. after the type if the a.k.a. gives extra information about the type. class versa_string; typedef versa_string string; namespace std {template <typename T> class vector;} using std::vector; void f(vector<string> v); namespace std { class basic_string; typedef basic_string string; template <typename T> class vector {}; void g() { vector<string> v; f(v); } } Old message: ---------------- test.cc:15:3: error: no matching function for call to 'f' f(&v); ^ test.cc:7:6: note: candidate function not viable: no known conversion from 'vector<string>' to 'vector<string>' for 1st argument void f(vector<string> v); ^ 1 error generated. New message: --------------- test.cc:15:3: error: no matching function for call to 'f' f(v); ^ test.cc:7:6: note: candidate function not viable: no known conversion from 'vector<string>' (aka 'std::vector<std::basic_string>') to 'vector<string>' (aka 'std::vector<versa_string>') for 1st argument void f(vector<string> v); ^ 1 error generated. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134904 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-08Switch the token-paste source locations inside of function style macroChandler Carruth
argument expansion to use the macro argument source locations as well. Add a few tests to exercise this. There is still a bit more work needed here though. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134674 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-07Keep track of which source locations are part of a macro argumentChandler Carruth
instantiation and improve diagnostics which are stem from macro arguments to trace the argument itself back through the layers of macro expansion. This requires some tricky handling of the source locations, as the argument appears to be expanded in the opposite direction from the surrounding macro. This patch provides helper routines that encapsulate the logic and explain the reasoning behind how we step through macros during diagnostic printing. This fixes the rest of the test cases originially in PR9279, and later split out into PR10214 and PR10215. There is still some more work we can do here to improve the macro backtrace, but those will follow as separate patches. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134660 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-28Fix PR9279 - Macro expansion stack trace seriously broken with ↵Chris Lattner
function-style macros, by not recursively printing notes for other 'instantiated from' notes. This is a one line fix here: + // Don't print recursive instantiation notes from an instantiation note. + Loc = SM.getSpellingLoc(Loc); While here, fix the testcase to be more precise (it got filecheck'ized brutally), and fix EmitCaretDiagnostic to be private and to not pass down the unused 'Level' argument. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133993 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-26Change the include stack of "instantiated from" notes to fall under the ↵Richard Trieu
control of f/fno-diagnostics-show-note-include-stack flags. This should help with reducing diagnostic spew from macros instantiations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132143 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-21Introduce the -fdiagnostics-format=xxx option to control how ClangDouglas Gregor
prints the file, line, and column of a diagnostic. We currently support Clang's normal format, MSVC, and Vi formats. Note that we no longer change the diagnostic format based on -fms-extensions. Patch by Andrew Fish! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131794 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-21Don't hide #warnings in a system header, same as gcc. Fixes rdar://8495837.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129951 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-27Flip the default for showing include stacks on notes to false. ThisChandler Carruth
required modifying a few tests that specifically use note include stacks to check the source manager's view of include stacks. I've simply added the flag to these tests for now, they may have to be more substantially changed if we decide to remove support for note include stacks altogether. Also, add a test for include stacks on notes that was supposed to go in with the previous commit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128390 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-09FileCheckize this test.Chandler Carruth
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127327 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-20Implement the C++0x deduced 'auto' feature.Richard Smith
This fixes PR 8738, 9060 and 9132. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126069 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-03Implement -working-directory.Argyrios Kyrtzidis
When -working-directory is passed in command line, file paths are resolved relative to the specified directory. This helps both when using libclang (where we can't require the user to actually change the working directory) and to help reproduce test cases when the reproduction work comes along. --FileSystemOptions is introduced which controls how file system operations are performed (currently it just contains the working directory value if set). --FileSystemOptions are passed around to various interfaces that perform file operations. --Opening & reading the content of files should be done only through FileManager. This is useful in general since file operations will be abstracted in the future for the reproduction mechanism. FileSystemOptions is independent of FileManager so that we can have multiple translation units sharing the same FileManager but with different FileSystemOptions. Addresses rdar://8583824. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@118203 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-19Revert r114316, -Wunused-value enabled by default was intended.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114318 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-19Make -Wunused-value off by default, matching GCC. Fixes rdar://7126194.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@114316 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-07tests: Use -ffreestanding when including stdint.h, to avoid platform ↵Daniel Dunbar
dependencies. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113301 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-05'const std::type_info*' instead of 'std::type_info const*'Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113092 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-05print "const intptr_t" instead of "intptr_t const"Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113091 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-29tests: Use %clangxx when using driver for C++, in case C++ support is disabled.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107153 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-13Testcase for r103712.Chandler Carruth
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103713 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-04Introduce a limit on the depth of the macro instantiation backtraceDouglas Gregor
printed in a diagnostic, similar to the limit we already have on the depth of the template instantiation backtrace. The macro instantiation backtrace is limited to 10 "instantiated from:" diagnostics; when it's longer than that, we'll show the first half, then say how many were suppressed, then show the second half. The limit can be changed with -fmacro-instantiation-limit=N, and turned off with N=0. This eliminates a lot of note spew with libraries making use of the Boost.Preprocess library. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103014 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-28add regex support for -verify mode. You can now do things likeChris Lattner
expected-error-re {{someregex}} Patch by mike-m! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102516 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16Fix a bug in caret-line-pruning logic that only happens when we have aDouglas Gregor
source line wider than the terminal where the associated fix-it line is longer than the caret line. Previously, we would crash in this case, which was rather unfortunate. Fixes <rdar://problem/7856226>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101426 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-14When diagnosing suspicious precedence or assignments, move the fix-itDouglas Gregor
that adds parentheses from the main diagnostic down to a new note. This way, when the fix-it represents a choice between two options, each of the options is associted with a note. There is no default option in such cases. For example: /Users/dgregor/t.c:2:9: warning: & has lower precedence than ==; == will be evaluated first [-Wparentheses] if (x & y == 0) { ^~~~~~~~ /Users/dgregor/t.c:2:9: note: place parentheses around the & expression to evaluate it first if (x & y == 0) { ^ ( ) /Users/dgregor/t.c:2:9: note: place parentheses around the == expression to silence this warning if (x & y == 0) { ^ ( ) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101249 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-17Remove this test. It is causing problems has has relatively little valueDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98730 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-17Entering the main source file in the preprocessor can fail if theDouglas Gregor
source file has been changed. Handle that failure more gracefully. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98727 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-12fix a bug in SourceManager::getInstantiationLocSlowCase, whereChris Lattner
we'd add an offset from the spelling location space to the instantiation location, which doesn't make sense and would lead up to the text diagnostics crashing when presented with non-sensical locations. This fixes rdar://7597492, a crash on 255.vortex. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@96004 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-18Print fix-it hints properly around tabs, from Christian Adåker!Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@93750 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-12testcase for -ftabstop, patch by Christian Adaker!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@93260 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-15Update tests to use %clang_cc1 instead of 'clang-cc' or 'clang -cc1'.Daniel Dunbar
- 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). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91446 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-08Switch this test to use clang-cc.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90875 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-03Update test and CIndex to use -FOO BAR form for ↵Daniel Dunbar
-{remap-file,code-completion-at}. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90416 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-02Extend -remap-file=from;to to permit mapping from a non-existentDouglas Gregor
file. This is accomplished by introducing the notion of a "virtual" file into the file manager, which provides a FileEntry* for a named file whose size and modification time are known but which may not exist on disk. Added a cute little test that remaps both a .c file and a .h file it includes to alternative files. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90329 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-02Introduce a new clang-cc option Douglas Gregor
-remap-file=from;to which takes the file "from" and transparently replaces its contents with the contents of the file "to" from the source manager's perspective. This is the moral equivalent of cp from saved cp to from <call clang> cp saved from rm saved without all of the pesky file copying. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90307 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-17Remove some redundant tests.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89069 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-08Eliminate &&s in tests.Daniel Dunbar
- 'for i in $(find . -type f); do sed -e 's#\(RUN:.*[^ ]\) *&& *$#\1#g' $i | FileUpdate $i; done', for the curious. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86430 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-25Tweak test, with -strict-whitespace $ won't match on Windows because the bufferDaniel Dunbar
will have \r\n. - Perhaps we should make FileCheck normalize line-endings, even in strict-whitespace mode? git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@85066 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-19Workaround a bug exposed by the FileCheckify of message-length.c, the caret endDaniel Dunbar
column computation isn't correct and could exceed the line length, which resulted in a buffer overflow later. - Chris, is there a better way for this code to compute the final column used by the caret? git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84475 91177308-0d34-0410-b5e6-96231b3b80d8
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