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Author SHA1 Message Date
David Blaikie ebcbe4b6aa Reapply r152745 (reverted in 152765) now that compiler-rt is fixed. 
Original commit message:

Provide -Wnull-conversion separately from -Wconversion.

Like GCC, provide a NULL conversion to non-pointer conversion as a separate
flag, on by default. GCC's flag is "conversion-null" which we provide for
cross compatibility, but in the interests of consistency (with
-Wint-conversion, -Wbool-conversion, etc) the canonical Clang flag is called
-Wnull-conversion.

Patch by Lubos Lunak.
Review feedback by myself, Chandler Carruth, and Chad Rosier.

llvm-svn: 152774
 2012-03-15 04:50:32 +00:00
Chad Rosier 2860fbb747 Revert r152745 as it's breaking the internal buildbots. 
Abbreviated commit message:
Provide -Wnull-conversion separately from -Wconversion.

llvm-svn: 152765
 2012-03-15 01:00:38 +00:00
David Blaikie 1ce8dbb93f Provide -Wnull-conversion separately from -Wconversion. 
Like GCC, provide a NULL conversion to non-pointer conversion as a separate
flag, on by default. GCC's flag is "conversion-null" which we provide for
cross compatibility, but in the interests of consistency (with
-Wint-conversion, -Wbool-conversion, etc) the canonical Clang flag is called
-Wnull-conversion.

Patch by Lubos Lunak.
Review feedback by myself, Chandler Carruth, and Chad Rosier.

llvm-svn: 152745
 2012-03-14 22:28:22 +00:00
Chandler Carruth a8bea4b90e Initial steps to improve diagnostics when there is a NULL and 
a non-pointer on the two sides of a conditional expression.

Patch by Stephen Hines and Mihai Rusu.

llvm-svn: 125995
 2011-02-18 23:54:50 +00:00
Daniel Dunbar 8fbe78f6fc 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
 2009-12-15 20:14:24 +00:00
Daniel Dunbar 8b57697954 Eliminate &&s in tests. 
- 'for i in $(find . -type f); do sed -e 's#\(RUN:.*[^ ]\) *&& *$#\1#g' $i | FileUpdate $i; done', for the curious.

llvm-svn: 86430
 2009-11-08 01:45:36 +00:00
Daniel Dunbar a45cf5b6b0 Rename clang to clang-cc. 
Tests and drivers updated, still need to shuffle dirs.

llvm-svn: 67602
 2009-03-24 02:24:46 +00:00
Anders Carlsson 39def3adc8 Add codegen support for __null 
llvm-svn: 61314
 2008-12-21 22:39:40 +00:00
Douglas Gregor 2dc61144cd Make sure __null test runs in both 32- and 64-bit. Thanks Anders 
llvm-svn: 60360
 2008-12-01 18:05:11 +00:00
Douglas Gregor dc37c81448 Add the test for __null 
llvm-svn: 60357
 2008-12-01 17:31:21 +00:00