While extracting lexical scopes from machine instruction stream, work on one machine basic block at a time. 

llvm-svn: 136106

Rename TargetAsmParser to MCTargetAsmParser and TargetAsmLexer to MCTargetAsmLexer; rename createAsmLexer to createMCAsmLexer and createAsmParser to createMCAsmParser.

llvm-svn: 136027

llvm-svn: 135833

llvm-svn: 135633

There are two ways to map a variable to its lexical scope. Lexical scope information is embedded in MDNode describing the variable. It is also available as a part of DebugLoc attached with DBG_VALUE instruction. DebugLoc attached with an instruction is less reliable in optimized code so use information embedded in the MDNode.

llvm-svn: 135629

While emitting constant value, look through derived type and use underlying basic type to determine size and signness of the constant value.

llvm-svn: 135627

There is still a bit more refactoring left to do in Targets. But we are now very
close to fixing all the layering issues in MC.

llvm-svn: 135611

TargetLoweringObjectFileImpl down to MCObjectFileInfo.

TargetAsmInfo is done to one last method. It's *almost* gone!

llvm-svn: 135569

llvm-svn: 135528

llvm-svn: 135478

llvm-svn: 135450

better location welcome).

llvm-svn: 135438

llvm-svn: 135375

llvm-svn: 135302

llvm-svn: 135278

llvm-svn: 135254

llvm-svn: 135232

llvm-svn: 135212

Improve DbgScope->dump() output.

llvm-svn: 135207

llvm-svn: 135127

llvm-svn: 135124

llvm-svn: 135118

llvm-svn: 135111

llvm-svn: 135110

CPU, and feature string. Parsing some asm directives can change
subtarget state (e.g. .code 16) and it must be reflected in other
modules (e.g. MCCodeEmitter). That is, the MCSubtargetInfo instance
must be shared.

llvm-svn: 134795

llvm-svn: 134703

llvm-svn: 134702

- Each target asm parser now creates its own MCSubtatgetInfo (if needed).
- Changed AssemblerPredicate to take subtarget features which tablegen uses
  to generate asm matcher subtarget feature queries. e.g.
  "ModeThumb,FeatureThumb2" is translated to
  "(Bits & ModeThumb) != 0 && (Bits & FeatureThumb2) != 0".

llvm-svn: 134678

llvm-svn: 134643

llvm-svn: 134572

llvm-svn: 134561

llvm-svn: 133821

is larger than the sum of the elements (including per-element padding).

llvm-svn: 133631

llvm-svn: 133561

explanation of what the EH table describes.

llvm-svn: 133559

const Constant *.

llvm-svn: 133400

llvm-svn: 133083

llvm-svn: 133007

Dan noted that this would work on the case shown on the commit message. I think
the case that was failing was a bb ending with a redundant conditional jump:

...
jne foo

foo:
...

I was unable to find any such case in the tests or in a debug build of clang,
so I will revert this part of the patch and watch the bots.

llvm-svn: 133004

AnalyzeBranch.

llvm-svn: 132981