- PR3629.

llvm-svn: 65203

system header.
 - Prevents a codegen crash when anything used anything in tgmath! :)

llvm-svn: 65200

llvm-svn: 65198

to being allocated from the same bumpptr that the MacroInfo objects 
themselves are.

This speeds up -Eonly cocoa.h pth by ~4%, fsyntax-only is barely measurable.

llvm-svn: 65195

llvm-svn: 65187

llvm-svn: 65179

with new/delete.  With disable-free, this reduces the number of 4/8 byte
mallocs from 4793/1541 to 865/456 and also drops other sizes as well.

This is a very small perf win, nothing major.

llvm-svn: 65171

llvm-svn: 65170

llvm-svn: 65169

but don't start using it yet.  Renamed some methods to be more consistent.

llvm-svn: 65168

llvm-svn: 65166

vanilla reverse-BFS followed by a forward-DFS instead of resulting to strange
histrionics (whose purpose I can no longer remember) in the reverse-BFS stage.
This fixes an assertion failure in BugReporter due to edge cases where no root
was being hit in the reverse-BFS phase.

llvm-svn: 65160

before the dtor.

llvm-svn: 65156

and other non-semantic changes.

llvm-svn: 65155

llvm-svn: 65151

it from being leaked, among other things.

llvm-svn: 65150

llvm-svn: 65146

llvm-svn: 65145

clear insertion point. The rest of IRgen should theoretically take
advantage of this to avoid emitting dead code. Theory != Practice.

llvm-svn: 65141

Always try to fold array sizes, and warn if we could fold something that isn't an ICE. This makes us compatible with GCC.

llvm-svn: 65140

interfaces more consistently.

llvm-svn: 65138

 - PR3463 (again).

llvm-svn: 65133

llvm-svn: 65132

llvm-svn: 65131

 - Remove an unused variant of EmitCallExpr overload.

llvm-svn: 65130

llvm-svn: 65129

llvm-svn: 65128

llvm-svn: 65127

llvm-svn: 65124

llvm-svn: 65114

llvm-svn: 65113

llvm-svn: 65112

llvm-svn: 65111

llvm-svn: 65110

isn't getting used by Sema or CodeGen at the moment...)

llvm-svn: 65107

llvm-svn: 65105

exactly one decl with a specific name in a specific context.  This
avoids a bunch of malloc traffic and shrinks StoredDeclsMap to hold
one pointer instead of 3 words (for a std::vector).

This speeds up -fsyntax-only on cocoa.h with PTH by ~7.3%.

llvm-svn: 65103

This prevents emitting diagnostics which are almost certainly useless.

(Note that the test is checking that we emit only one diagnostic.)

llvm-svn: 65101

error, so we don't crash.

llvm-svn: 65099

from the testsuite.

llvm-svn: 65098