Check for redefinitions in MergeVarDecl. This finds redefinitions of globals without an initializer in C++ and thus fixes PR5451.

llvm-svn: 95098

Fixes radar 7589414.

llvm-svn: 95097

llvm-svn: 95096

llvm-svn: 95095

type qualifiers and type specifiers in any order.   For example,
this is valid: struct x {...} typedef y;

This fixes PR6208.

llvm-svn: 95094

this is still a popular thing to do.

llvm-svn: 95093

llvm-svn: 95086

unused variable warning.

llvm-svn: 95085

llvm-svn: 95079

magnitude clearer.

llvm-svn: 95078

Eliminates a lot of spurious global initializers, fixing PR6205.

llvm-svn: 95077

llvm-svn: 95076

llvm-svn: 95075

llvm-svn: 95074

parameter to record whether changes actually happened.

llvm-svn: 95073

UnresolvedMemberExpr and employ it in a few places where it's useful.

llvm-svn: 95072

dyncast is just due to \r\n newline interaction w/ regexps. The remap-load.c
failure is a bit stranger (the end of the extent is on the next line), but I
don't care to investigate.

llvm-svn: 95071

lookup is that if the lookup key is contained in the key, we return the data.

llvm-svn: 95070

llvm-svn: 95069

syntax.

llvm-svn: 95068

side effect, this also fixes some cases on Windows where the file would end up
on a different drive, because tmpnam doesn't include the drive component. PR3837
strikes again.

llvm-svn: 95067

llvm-svn: 95066

external ASTs, and the ASTUnit fails to load.

Also, move getLocationFromExpr outside extern "C" block.

llvm-svn: 95065

llvm-svn: 95064

llvm-svn: 95063

llvm-svn: 95062

llvm-svn: 95061

llvm-svn: 95060

llvm-svn: 95059

for vectors.  Codegen is generating awful code or segfaulting
in various cases (e.g. PR6204).

llvm-svn: 95058

as an argument during overload resolution.

llvm-svn: 95057

llvm-svn: 95056

llvm-svn: 95055

llvm-svn: 95054

where callee's arguments are already in the caller's own caller's stack and
they line up perfectly. e.g.

extern int foo(int a, int b, int c);

int bar(int a, int b, int c) {
  return foo(a, b, c);
}

llvm-svn: 95053

arguments.  Fix a bug where incomplete explicit specializations were being
passed through as legitimate.  Fix a bug where the absence of an explicit
specialization in an overload set was causing overall deduction to fail.

Fixes PR6191.

llvm-svn: 95052

implementation.  Also made sure that the register maps
were created during disassembler initialization.

llvm-svn: 95051

as output.  Needed for (functional) correctness in inline asm,
and should be generally beneficial.  7361612.

llvm-svn: 95050

This is to address a serious performance problem observed when running
'clang -fsyntax-only' on really broken source files.  In one case,
repeatedly calling CorrectTypo() caused one source file to be rejected
after 2 minutes instead of 1 second.

This patch causes typo correction to take neglible time on that file
while still providing correction results for the first 20 cases.  I
felt this was a reasonable number for moderately broken source files.

I don't claim this is the best solution.  Comments welcome.  It is
necessary for us to address this issue because it is a serious
performance problem.

llvm-svn: 95049

'Pred' to 'Dst' for cases we currently don't handle.  This fixes
<rdar://problem/7593875>.

llvm-svn: 95048