Reduce the entries in a phi before testing it for deadness, because removing the entries might make it dead.

llvm-svn: 54535

llvm-svn: 54534

- Move checking from MergeVarDecl->FinializeDeclaratorGroup. Since MergeVarDecl is called before the initializer is attacted, it can't be done there (this removes a long standing FIXME).
- Add Sema::isTentativeDefinition() and Sema::CheckForFileScopedRedefinitions().
- Remove FIXME's and touch-up test case.

Still some more work to do (forthcoming)...

llvm-svn: 54533

llvm-svn: 54530

llvm-svn: 54529

up the passmgr by avoiding useless work.

llvm-svn: 54528

llvm-svn: 54527

llvm-svn: 54526

llvm-svn: 54525

llvm-svn: 54524

llvm-svn: 54523

llvm-svn: 54522

llvm-svn: 54521

It's not legal to output a GV in a coalesced section if it's used in an ARM PIC relative constantpool.

llvm-svn: 54519

llvm-svn: 54518

is narrower than the pointer. This testcase emits:

  .byte (((17) - 16) & 255)

llvm-svn: 54517

llvm-svn: 54516

llvm-svn: 54515

llvm-svn: 54514

Unbreak SerializationTest and the Rewriter by doing the work in HandleTranslationUnit instead of the destructor.

llvm-svn: 54513

llvm-svn: 54512

llvm-svn: 54511

llvm-svn: 54510

llvm-svn: 54509

llvm-svn: 54508

llvm-svn: 54507

I had a lot of simple local codegen tests and they are now ready to be placed
in test/CodeGen. 

llvm-svn: 54506

other from Python.

llvm-svn: 54505

The motivation is that clients may either:

(a) query the ASTConsumer object after AST parsing to collect data/etc.
(b) reuse the ASTConsumer.

llvm-svn: 54502

llvm-svn: 54501

Added AssumeSymGT, AssumeSymGE, AssumeSymLT, AssumeSymLE to add some minor improvements to path-sensitivity.  Right now we basically treat 'x > y' and 'x < y' as implying 'x != y', but this restriction will only inevitably apply to our must rudimentary value tracking component (we'll implement more advanced value reasoning later).

llvm-svn: 54493

llvm-svn: 54492

use the more precise 'op1' instead of 'var1' since the latter can be misunderstood to not encompass constants

llvm-svn: 54490

llvm-svn: 54489

llvm-svn: 54488

llvm-svn: 54487

ModuleBuilder now performs llvmgen in HandleTranslationUnit.

This patch follows from the discussion on the following thread on cfe-commits:

http://lists.cs.uiuc.edu/pipermail/cfe-commits/Week-of-Mon-20080804/006849.html

llvm-svn: 54486

Fixed bug in adjustMipsStackFrame, which was breaking
while trying to access a dead stack object index. Also added
one more alignment before fixing the callee saved registers
stack offset adjustment.

llvm-svn: 54485

FPROUND_F80_F32, FPROUND_PPCF128_F32, 
FPROUND_F80_F64, FPROUND_PPCF128_F64

Support for soften float fp_round operands is added, Mips 
needs this to round f64->f32.

Also added support to soften float FABS result, Mips doesn't 
support double fabs results while in 'single float only' mode.

llvm-svn: 54484

Do a dominator walk when scheduling copies, rather than a DFS on the CFG.  Also, fix a few problems when creating
live intervals for temporaries created by phi elimination.

llvm-svn: 54483