Sanjay Patel
0029534141
fixed a few typos in comments
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211634 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-24 21:11:51 +00:00
Craig Topper
9f998de891
[C++11] Add 'override' keyword to virtual methods that override their base class.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203220 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-07 09:26:03 +00:00
Benjamin Kramer
55c06ae7af
Revert "Give internal classes hidden visibility."
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It works with clang, but GCC has different rules so we can't make all of those
hidden. This reverts commit r190534.
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2013-09-11 18:05:11 +00:00
Benjamin Kramer
15f387c93e
Give internal classes hidden visibility.
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Worth 100k on a linux/x86_64 Release+Asserts clang.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190534 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-11 17:42:27 +00:00
Craig Topper
78477ffdfd
Use SmallVectorImpl instead of SmallVector as method argument to avoid specifying vector size.
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2013-07-03 05:16:59 +00:00
Bill Schmidt
5ff776bfde
This patch addresses bug 15031.
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The common code in the post-RA scheduler to break anti-dependencies on the
critical path contained a flaw. In the reported case, an anti-dependency
between the overlapping registers %X4 and %R4 exists:
%X29<def> = OR8 %X4, %X4
%R4<def>, %X3<def,dead,tied3> = LBZU 1, %X3<kill,tied1>
The unpatched code breaks the dependency by replacing %R4 and its uses
with %R3, the first register on the available list. However, %R3 and
%X3 overlap, so this creates two overlapping definitions on the same
instruction.
The fix is straightforward, preventing selection of a register that
overlaps any other defined register on the same instruction.
The test case is reduced from the bug report, and verifies that we no
longer produce "lbzu 3, 1(3)" when breaking this anti-dependency.
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2013-01-28 18:36:58 +00:00
Chandler Carruth
a1514e24cc
Sort includes for all of the .h files under the 'lib' tree. These were
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missed in the first pass because the script didn't yet handle include
guards.
Note that the script is now able to handle all of these headers without
manual edits. =]
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2012-12-04 07:12:27 +00:00
Andrew Trick
1525260b3e
Move RegisterClassInfo.h.
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Allow targets to access this API. It's required for RegisterPressure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158102 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-06 20:29:31 +00:00
Benjamin Kramer
cff4ad768e
CriticalAntiDepBreaker: Replace a SmallSet of regs with a much denser BitVector.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152999 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-17 20:22:57 +00:00
Jakob Stoklund Olesen
fa796dd720
Teach antidependency breakers to use RegisterClassInfo.
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No functional change was intended.
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2011-06-16 21:56:21 +00:00
Devang Patel
e29e8e100e
Update DBG_VALUEs while breaking anti dependencies.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132487 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-02 21:26:52 +00:00
Mikhail Glushenkov
35edc42f98
Typo.
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2011-02-09 22:55:48 +00:00
Andrew Trick
bc4bd92d52
Fix PostRA antidependence breaker.
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Avoid using the same register for two def operands or and earlyclobber
def and use operand. This fixes PR8986 and improves on the prior fix
for rdar://problem/8959122.
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2011-02-08 17:39:46 +00:00
Andrew Trick
4638852696
Fixes <rdar://problem/8612856>: During postRAsched, the antidependence
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breaker needs to check all definitions of the antidepenent register to
avoid multiple defs of the same new register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118032 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-02 18:16:45 +00:00
Bill Wendling
9c2a034730
Use std::vector instead of TargetRegisterInfo::FirstVirtualRegister. This time
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make sure to allocate enough space in the std::vector.
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2010-07-15 19:58:14 +00:00
Chris Lattner
7fa889b946
revert bill's patches in an attempt to fix the buildbot.
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2010-07-15 06:51:46 +00:00
Bill Wendling
f7f72bc1ea
Use std::vector instead of a hard-coded array. The length of that array could
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get *very* large, but we only need it to be the size of thenumber of pregs.
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2010-07-15 05:56:32 +00:00
Evan Cheng
46df4eb46e
Make post-ra scheduling, anti-dep breaking, and register scavenger (conservatively) aware of predicated instructions. This enables ARM to move if-conversion before post-ra scheduler.
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2010-06-16 07:35:02 +00:00
Dan Gohman
66db3a0f10
Make BreakAntiDependencies' SUnits argument const, and make the Begin
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and End arguments by-value rather than by-reference.
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2010-04-19 23:11:58 +00:00
Jim Grosbach
80c2b0d9ef
Anti-dependency breaking needs to be careful regarding instructions with
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multiple register definitions.
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2010-01-06 22:21:25 +00:00
Jim Grosbach
2973b57093
80 column and whitespace cleanup
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2010-01-06 16:48:02 +00:00
David Goodwin
557bbe6b5d
Remove some old experimental code that is no longer needed. Remove additional, speculative scheduling pass as its cost did not translate into significant performance improvement. Minor tweaks.
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2009-11-20 19:32:48 +00:00
David Goodwin
4de099d8ca
Do a scheduling pass ignoring anti-dependencies to identify candidate registers that should be renamed.
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2009-11-03 20:57:50 +00:00
David Goodwin
82c7248518
Make AntiDepReg.h internal.
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2009-10-28 18:29:54 +00:00
David Goodwin
e10deca33e
Allow the aggressive anti-dep breaker to process the same region multiple times. This is necessary because new anti-dependencies are exposed when "current" ones are broken.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85166 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 22:31:16 +00:00
David Goodwin
2e7be612d5
Break anti-dependence breaking out into its own class.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85127 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 16:59:04 +00:00