llvm-svn: 130448

This shouldn't happen in practice because the icmp would be a constant.
Add a check so we don't miscompile code if something goes wrong.

llvm-svn: 130446

between two reads (threading).

Fix an off-by-one in the indirect counter table that I meant to revert after an
earlier experiment. Whoops!

Implement GCOV_PREFIX. Doesn't handle GCOV_PREFIX_STRIP yet.

Fix an off-by-one in string emission. Extra whoops!

Tolerate DISubprograms that have null Function*'s attached to them. I don't yet
understand what this means, but it happens when you have a global static with
a non-trivial constructor/destructor.

Fix a crash on switch statements with a single successor (default-only).

llvm-svn: 130443

purposes.

llvm-svn: 130438

expressions used in the FDE to refer to symbols.

llvm-svn: 130437

llvm-svn: 130435

Add MemoryBuffer::getBufferKind() to report whether a memory buffer uses malloc'ed or mmap'ed memory.  This is for performance analysis.

llvm-svn: 130432

llvm-svn: 130431

Remove bounded StringRef::compare() since nothing but Clang SA was using it and it is just as easy to use StringRef::substr() preceding StringRef::compare() to achieve the same thing.

llvm-svn: 130430

fast-isel sret calls, try 2.  We actually do need to do something on x86-32. rdar://problem/9303592 .

llvm-svn: 130429

llvm-svn: 130428

llvm-svn: 130426

llvm-svn: 130419

a nice and tidy:
  %x1 = load i32* %0, align 4
  %1 = icmp eq i32 %x1, 1179403647
  br i1 %1, label %if.then, label %if.end

instead of doing lots of loads and branches.  May the FreeBSD bootloader
long fit in its allocated space.

llvm-svn: 130416

llvm-svn: 130414

llvm-svn: 130412

Add command line option to print debug info in human readable form as comment in llvm IR output. This, i.e -enable-debug-info-comment,  is very useful if you want to easily find out which optimization pass is losing line number information.

llvm-svn: 130409

llvm-svn: 130408

This happens when GVN widens loads. Part of PR6627.

llvm-svn: 130405

if it means we get a fallthrough.

llvm-svn: 130404

static functions instead of passing around tons of random ivars.

llvm-svn: 130403

llvm-svn: 130401

converting the symbol passed to .cfi_personality into bytes is the file.

llvm-svn: 130400

llvm-svn: 130397

a bit more sinister as the memset doesn't do what the constructor does.
There seems to be a cleaner solution than a cast here though, instead we
can point the memset destination into the union its actually trying to
clear.

An alternative is to point to the Untyped member of this union. Review
appreciated, and if that is cleaner I'm happy to switch. All of these
should be functionally equivalent to the original code.

llvm-svn: 130395

wider load would allow elimination of subsequent loads, and when the wider
load is still a native integer type.  This eliminates a ton of loads on 
various benchmarks involving struct fields, though it is somewhat hobbled
by clang not being very aggressive about field alignment.

This is yet another step along the way towards resolving PR6627.

llvm-svn: 130390

immediate patterns in arm to using the pattern.

Handles rdar://9299434

llvm-svn: 130386

llvm-svn: 130385

This removes one of the main advantages of moving eh_frame to MC, but
makes the transition a lot easier to debug (run md5).

llvm-svn: 130379

llvm-svn: 130378

symbols.

llvm-svn: 130375

This fixes clang generated blocks' variables' debug info.
Radar 9279956.

llvm-svn: 130373

llvm-svn: 130360

- expansion of SELECT_CC into SETCC
- force SETCC result type to i1
- custom selection for handling i1 using SETCC

Patch by Dan Bailey

llvm-svn: 130358

- selection of SELP instruction
- new selp.ll test

Patch by Dan Bailey

llvm-svn: 130357

- fix typo in MOV
- correct fp rounding on CVT
- new cvt.ll test

Patch by Dan Bailey

llvm-svn: 130356

- selection of FNEG instruction
- new fneg.ll test

Patch by Dan Bailey

llvm-svn: 130355

- expansion of EXTLOAD and TRUNCSTORE instructions

Patch by Dan Bailey

llvm-svn: 130354

- selection of bitwise preds (AND, OR, XOR)
- new bitwise.ll test

Patch by Dan Bailey

llvm-svn: 130353

- immediate value cast as long not int
- handles initializer for constant array

Patch by Dan Bailey

llvm-svn: 130352