- 2010-06-25-CoalescerSubRegDefDead.ll is the testcase for r106878.

llvm-svn: 106880

are dead, not just the def of this register. I.e., a register could be dead, but
it's subreg isn't.

Testcase to follow with a subsequent patch.

llvm-svn: 106878

llvm-svn: 106877

llvm-svn: 106876

llvm-svn: 106872

with the following instructions. This is done via trickery by considering the
instruction preceding the IT to be the hazard. Care must be taken to ensure
it's the first non-debug instruction, or the presence of debug info will
affect codegen.

Part of the continuing work for rdar://7797940, making ARM code-gen unaffected
by the presence of debug information.

llvm-svn: 106871

Refactoring of more SSE conversion instructions. Also add some AVX instrinsics Int_V... placeholders

llvm-svn: 106867

llvm-svn: 106865

llvm-svn: 106856

is not used.  Spotted by gcc-4.6.

llvm-svn: 106854

llvm-svn: 106841

buffer in the same chunk of memory.

2 less mallocs for every uninitialized MemoryBuffer and 1 less malloc for every
MemoryBuffer pointing to a memory range translate into 20% less mallocs on
clang -cc1 -Eonly Cocoa_h.m.

llvm-svn: 106839

and CallInst for getting hold
of the intrinsic's arguments

simplify along the way (at least for me this is much more legible now)
Bill, Baldrick or Anton, please review\!

llvm-svn: 106838

llvm-svn: 106837

llvm-svn: 106836

llvm-svn: 106835

llvm-svn: 106833

llvm-svn: 106829

llvm-svn: 106828

llvm-svn: 106827

llvm-svn: 106825

llvm-svn: 106824

use ArgOperand API; tighten type of handleFreeWithNonTrivialDependency to be able to use isFreeCall whithout a cast or new overload

llvm-svn: 106823

Radar 8128745.

llvm-svn: 106820

llvm-svn: 106819

is reused as an input.  PR 4118.  Testcase is too big,
as usual with bugs in this area, but there's one in
the PR.

llvm-svn: 106816

llvm-svn: 106815

This fixes PR7479 and PR7485. The test cases from those PRs are big, so not
included. However, PR7485 comes from self hosting on FreeBSD, so we will surely
hear about any regression.

llvm-svn: 106811

llvm-svn: 106809

llvm-svn: 106808

and to clean up unused incoming physregs from the live-in list.

llvm-svn: 106805

llvm-svn: 106804

llvm-svn: 106796

original SDNode. This is badness. Also, this function allows one SDNode to point
multiple flags to another SDNode. Badness as well.

llvm-svn: 106793

DBG_VALUE machine instruction pointing to undefined register for a variable justify a separate scope if the variable is inlined function's argument.
Radar 8122864.

llvm-svn: 106792

vector instead. This avoids needless copying and allocation.

Add documentation.

llvm-svn: 106788

- Fix a small VEX encoding issue.
- Move compare instructions to their appropriate place.

llvm-svn: 106787

This method was always a bit too simplistic for the real world. It didn't really
deal with subregisters and such.

llvm-svn: 106781

llvm-svn: 106780

address requires a register or secondary load to compute
(most PIC modes).  This improves "g" constraint handling.  8015842.

The test from 2007 is attempting to test the fix for PR1761,
but since -relocation-model=static doesn't work on Darwin
x86-64, it was not testing what it was supposed to be testing
and was passing erroneously.  Fixed to use Linux x86-64.

llvm-svn: 106779