a global is larger than 32 bytes and has fewer than 6 non-zero values in the
initializer.  Previously we'd turn something like this:

char test8(int X) {
  char str[10000] = "abc";

into a 10K global variable which we then memcpy'd from.  Now we generate:

  %str = alloca [10000 x i8], align 16
  %tmp = getelementptr inbounds [10000 x i8]* %str, i64 0, i64 0
  call void @llvm.memset.p0i8.i64(i8* %tmp, i8 0, i64 10000, i32 16, i1 false)
  store i8 97, i8* %tmp, align 16
  %0 = getelementptr [10000 x i8]* %str, i64 0, i64 1
  store i8 98, i8* %0, align 1
  %1 = getelementptr [10000 x i8]* %str, i64 0, i64 2
  store i8 99, i8* %1, align 2

Which is much smaller in space and also likely faster.

This is part of PR279

llvm-svn: 120645

into the latter.

llvm-svn: 120643

llvm-svn: 120555

http://llvm.org/bugs/show_bug.cgi?id=279#c3 better.

No functionality change yet.

llvm-svn: 120530

using ConstantInt::get.

llvm-svn: 120527

refer to opaque types, they must be held via PATypeHolders.  I'm
not sure why this hasn't blown up before.

llvm-svn: 120491

llvm-svn: 120489

literal declaration caused crash in CodeGen.
This patch fixes it. pr8707

llvm-svn: 120486

llvm-svn: 120433

about the reliability of this yet.

llvm-svn: 120422

Harden CGDebugInfo::CreateType() a bit for cases where we couldn't generate type info for its component types

llvm-svn: 120401

llvm-svn: 120297

llvm-svn: 120268

llvm-svn: 120257

llvm-svn: 120252

llvm-svn: 120251

llvm-svn: 120250

llvm-svn: 120249

llvm-svn: 120153

llvm-svn: 120140

llvm-svn: 120133

llvm-svn: 120132

llvm-svn: 120129

llvm-svn: 120118

Fix a (probably very old) regression where we weren't using the typedef name for anonymous tag types.

llvm-svn: 120113

llvm-svn: 120112

llvm-svn: 120110

llvm-svn: 120109

llvm-svn: 120108

Make CodeGenTypes::getCGRecordLayout compute the layout lazily if it doesn't exist. This matches ASTContext::getASTRecordLayout and is less confusing.

llvm-svn: 120107

llvm-svn: 120106

llvm-svn: 120084

llvm-svn: 119980

llvm-svn: 119957

llvm-svn: 119956

llvm-svn: 119955

llvm-svn: 119924

llvm-svn: 119814

types was not being generated for objc pointers.
// rdar://8681766.

llvm-svn: 119751

-Move the stuff of Diagnostic related to creating/querying diagnostic IDs into a new DiagnosticIDs class.
-DiagnosticIDs can be shared among multiple Diagnostics for multiple translation units.
-The rest of the state in Diagnostic object is considered related and tied to one translation unit.
-Have Diagnostic point to the SourceManager that is related with. Diagnostic can now accept just a
   SourceLocation instead of a FullSourceLoc.
-Reflect the changes to various interfaces.

llvm-svn: 119730