llvm-svn: 65498

If an available register falls through to a succ block, unset the last kill. Sorry, it's impossible to reduce a sensible test case. It basically requires the moon and stars to align in order to cause a failure.

llvm-svn: 65497

llvm-svn: 65496

llvm-svn: 65493

llvm-svn: 65482

overly long ints, e.g. i96, into pieces at PHIs
and the nodes that feed into them; however big-endian
reverses the order of the pieces (for some reason), and
wasn't doing it the same way on both sides, so
the pieces didn't match and runtime failures ensued.
Fixes 188.ammp and sqlite3 on ppc32.

llvm-svn: 65481

Print variable's display name in dwarf DIE.

llvm-svn: 65468

llvm-svn: 65464

copied field by LLVM field if the record has a variable
sized field in it.  The problem is that the LLVM field
will not completely cover the variable sized gcc field.

llvm-svn: 65463

llvm-svn: 65456

llvm-svn: 65448

llvm-svn: 65447

llvm-svn: 65446

llvm-svn: 65445

llvm-svn: 65439

Clean up dwarf writer, part 1. This eliminated the horrible recursive getGlobalVariablesUsing and replaced it something readable. It eliminated use of slow UniqueVector and replaced it with StringMap, SmallVector, and DenseMap, etc. It also fixed some non-deterministic behavior.

This is a very minor compile time win.

llvm-svn: 65438

related code.

llvm-svn: 65437

llvm-svn: 65436

llvm-svn: 65435

llvm-svn: 65434

llvm-svn: 65430

llvm-svn: 65429

llvm-svn: 65427

results via reference parameters.

This patch also appears to fix Evan's reported problem supplied as a
reduced bugpoint test case.

llvm-svn: 65426

or target) can be overloaded or not.

llvm-svn: 65404

llvm-svn: 65402

has never been run!).
 - Sorry, don't know how to make an LLVM test case for this.

llvm-svn: 65383

to more accurately describe what it does. Expand its doxygen comment
to describe what the backedge-taken count is and how it differs
from the actual iteration count of the loop. Adjust names and
comments in associated code accordingly.

llvm-svn: 65382

them are generic changes.

- Use the "fast" flag that's already being passed into the asm printers instead
  of shoving it into the DwarfWriter.

- Instead of calling "MI->getParent()->getParent()" for every MI, set the
  machine function when calling "runOnMachineFunction" in the asm printers.

llvm-svn: 65379

llvm-svn: 65375

  a DBG_LABEL or not. We want to fall back to the original way of emitting debug
  info when we're in -O0/-fast mode.
- Add plumbing in to pass the "Fast" flag to places that need it.
- XFAIL DebugInfo/deaddebuglabel.ll. This is finding 11 labels instead of 8. I
  need to investigate still.

llvm-svn: 65367

llvm-svn: 65365

ashr instcombine to help expose this code. And apply the fix to
SelectionDAG's copy of this code too.

llvm-svn: 65364

handling non-constant strides. No functionality change.

llvm-svn: 65363

llvm-svn: 65359

This fixes objc.dg/dwarf-prototypes.m scan-assembler DW_AT_prototyped from llvmgcc42 test suite.

llvm-svn: 65357

llvm-svn: 65355

While folding unconditional return move DbgRegionEndInst into the predecessor, instead of removing it. This fixes following tests from llvmgcc42 testsuite.

gcc.c-torture/execute/20000605-3.c
gcc.c-torture/execute/20020619-1.c
gcc.c-torture/execute/20030920-1.c
gcc.c-torture/execute/loop-ivopts-1.c

llvm-svn: 65353

If there is not any debug info available for any global variables and any subprograms then there is not any debug info to emit.

llvm-svn: 65352

trip counts that use signed comparisons. It's not obviously the best
approach for preserving trip count information, and at any rate there
isn't anything in the tree right now that makes use of that, so for
now always using zero-extensions is preferable.

llvm-svn: 65347