oota-llvm.git
11 years agoTesting commit access
Meador Inge [Thu, 24 May 2012 14:20:13 +0000 (14:20 +0000)]
Testing commit access

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157389 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoPR1255 related changes (case ranges):
Stepan Dyatkovskiy [Thu, 24 May 2012 09:33:20 +0000 (09:33 +0000)]
PR1255 related changes (case ranges):
LowerSwitch::Clusterify : main functinality was replaced with CRSBuilder::optimize, so big part of Clusterify's code was reduced.
test/Transform/LowerSwitch/feature.ll - this test was refactored: grep + count was replaced with FileCheck usage.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157384 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix -Wcovered-switch-default warning.
Patrik Hägglund [Thu, 24 May 2012 07:51:46 +0000 (07:51 +0000)]
Fix -Wcovered-switch-default warning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157381 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoConvert assert(0) to llvm_unreachable.
Craig Topper [Thu, 24 May 2012 07:02:50 +0000 (07:02 +0000)]
Convert assert(0) to llvm_unreachable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157380 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRemove old release notes. Ready them for additions from current development
Bill Wendling [Thu, 24 May 2012 06:38:09 +0000 (06:38 +0000)]
Remove old release notes. Ready them for additions from current development
cycle.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157378 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoMark some static arrays as const.
Craig Topper [Thu, 24 May 2012 06:35:32 +0000 (06:35 +0000)]
Mark some static arrays as const.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157377 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoUse uint16_t to store registers in static tables. Matches other tables.
Craig Topper [Thu, 24 May 2012 06:09:56 +0000 (06:09 +0000)]
Use uint16_t to store registers in static tables. Matches other tables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157375 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoUse uint16_t to store register number in static tables to match other tables.
Craig Topper [Thu, 24 May 2012 05:55:47 +0000 (05:55 +0000)]
Use uint16_t to store register number in static tables to match other tables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157374 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoMake some opcode tables static and const. Allows code to avoid making copies to pass...
Craig Topper [Thu, 24 May 2012 05:17:00 +0000 (05:17 +0000)]
Make some opcode tables static and const. Allows code to avoid making copies to pass the tables around.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157373 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoReflect that tblgen is now llvm-tblgen
Joel Jones [Thu, 24 May 2012 04:38:50 +0000 (04:38 +0000)]
Reflect that tblgen is now llvm-tblgen

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157371 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoMark a couple arrays as static and const. Use array_lengthof instead of sizeof/sizeof.
Craig Topper [Thu, 24 May 2012 04:22:05 +0000 (04:22 +0000)]
Mark a couple arrays as static and const. Use array_lengthof instead of sizeof/sizeof.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157369 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoMark a static array as const.
Craig Topper [Thu, 24 May 2012 04:11:15 +0000 (04:11 +0000)]
Mark a static array as const.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157368 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoMark a static table as const. Shrink opcode size in static tables to uint16_t. Simpli...
Craig Topper [Thu, 24 May 2012 03:59:11 +0000 (03:59 +0000)]
Mark a static table as const. Shrink opcode size in static tables to uint16_t. Simplify loop iterating over one of those tables. No functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157367 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoTidy up naming for consistency and other cleanup. No functional change intended.
Chad Rosier [Wed, 23 May 2012 23:45:10 +0000 (23:45 +0000)]
Tidy up naming for consistency and other cleanup.  No functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157358 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdd a test case for global live range splitting.
Jakob Stoklund Olesen [Wed, 23 May 2012 23:42:23 +0000 (23:42 +0000)]
Add a test case for global live range splitting.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157357 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdd a last resort tryInstructionSplit() to RAGreedy.
Jakob Stoklund Olesen [Wed, 23 May 2012 22:37:27 +0000 (22:37 +0000)]
Add a last resort tryInstructionSplit() to RAGreedy.

Live ranges with a constrained register class may benefit from splitting
around individual uses. It allows the remaining live range to use a
larger register class where it may allocate. This is like spilling to a
different register class.

This is only attempted on constrained register classes.

<rdar://problem/11438902>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157354 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoForgot to reverse conditional.
Bill Wendling [Wed, 23 May 2012 22:12:50 +0000 (22:12 +0000)]
Forgot to reverse conditional.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157349 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoReduce indentation by early detection of 'continue'. No functionality change.
Bill Wendling [Wed, 23 May 2012 22:09:50 +0000 (22:09 +0000)]
Reduce indentation by early detection of 'continue'. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157348 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agollvm-ld does not exist anymore, use llvm-link instead.
Nicolas Geoffray [Wed, 23 May 2012 20:34:19 +0000 (20:34 +0000)]
llvm-ld does not exist anymore, use llvm-link instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157342 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix typo in flag to opt, and also a CHECK-NEXT that doesn't follow a
Kaelyn Uhrain [Wed, 23 May 2012 20:21:36 +0000 (20:21 +0000)]
Fix typo in flag to opt, and also a CHECK-NEXT that doesn't follow a
CHECK. The latter error was hidden by the former, and the test harness
used by e.g. "make check" silently ignored that opt was printing an
error message about an unknown flag instead of running on the test file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157341 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoCorrectly deal with identity copies in RegisterCoalescer.
Jakob Stoklund Olesen [Wed, 23 May 2012 20:21:06 +0000 (20:21 +0000)]
Correctly deal with identity copies in RegisterCoalescer.

Now that the coalescer keeps live intervals and machine code in sync at
all times, it needs to deal with identity copies differently.

When merging two virtual registers, all identity copies are removed
right away. This means that other identity copies must come from
somewhere else, and they are going to have a value number.

Deal with such copies by merging the value numbers before erasing the
copy instruction. Otherwise, we leave dangling value numbers in the live
interval.

This fixes PR12927.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157340 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix how CMake appends -m32 to linker command-lines
Tim Northover [Wed, 23 May 2012 18:42:02 +0000 (18:42 +0000)]
Fix how CMake appends -m32 to linker command-lines

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157337 91177308-0d34-0410-b5e6-96231b3b80d8

11 years ago[arm-fast-isel] Add support for non-global callee.
Chad Rosier [Wed, 23 May 2012 18:38:57 +0000 (18:38 +0000)]
[arm-fast-isel] Add support for non-global callee.
Patch by Jush Lu <jush.msn@gmail.com>.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157336 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoBoundsChecking: add a couple of simple tests and fix a bug in branch emition
Nuno Lopes [Wed, 23 May 2012 16:24:52 +0000 (16:24 +0000)]
BoundsChecking: add a couple of simple tests and fix a bug in branch emition

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157329 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agorevert r156383: removal of TYPE_CODE_FUNCTION_OLD
Nuno Lopes [Wed, 23 May 2012 15:19:39 +0000 (15:19 +0000)]
revert r156383: removal of TYPE_CODE_FUNCTION_OLD
Apparently LLVM only stopped emitting this after LLVM 3.0

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157325 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix the inliner so that the optsize function attribute don't alter the
Patrik Hägglund [Wed, 23 May 2012 13:42:57 +0000 (13:42 +0000)]
Fix the inliner so that the optsize function attribute don't alter the
inline threshold if the global inline threshold is lower (as for -Oz).

Reviewed by Chandler Carruth and Bill Wendling.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157323 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFixed typo in r156905.
Patrik Hägglund [Wed, 23 May 2012 12:34:56 +0000 (12:34 +0000)]
Fixed typo in r156905.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157320 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoSmall fix for the debug output from PBQP (PR12822).
Patrik Hägglund [Wed, 23 May 2012 12:12:58 +0000 (12:12 +0000)]
Small fix for the debug output from PBQP (PR12822).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157319 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoUse zero-based shadow by default on Android.
Evgeniy Stepanov [Wed, 23 May 2012 11:52:12 +0000 (11:52 +0000)]
Use zero-based shadow by default on Android.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157317 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoPR1255(case ranges) related changes in Local Transformations.
Stepan Dyatkovskiy [Wed, 23 May 2012 08:18:26 +0000 (08:18 +0000)]
PR1255(case ranges) related changes in Local Transformations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157315 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoTidy up spacing.
Craig Topper [Wed, 23 May 2012 05:44:51 +0000 (05:44 +0000)]
Tidy up spacing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157313 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agosmall refinement to r157218 to save a tiny amount of table size in the common
Chris Lattner [Wed, 23 May 2012 05:19:18 +0000 (05:19 +0000)]
small refinement to r157218 to save a tiny amount of table size in the common
case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157312 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix indentation of wrapped line for readability. No functional change.
Craig Topper [Wed, 23 May 2012 03:59:53 +0000 (03:59 +0000)]
Fix indentation of wrapped line for readability. No functional change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157309 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdd support for C++11 enum classes in llvm.
Eric Christopher [Wed, 23 May 2012 00:09:20 +0000 (00:09 +0000)]
Add support for C++11 enum classes in llvm.

Part of rdar://11496790

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157303 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoaddress some of John Criswell's comments
Nuno Lopes [Tue, 22 May 2012 22:02:19 +0000 (22:02 +0000)]
address some of John Criswell's comments
teach computeAllocSize about realloc, reallocf, and valloc

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157298 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoARMDisassembler.cpp: Fix utf8 char in comments.
NAKAMURA Takumi [Tue, 22 May 2012 21:47:02 +0000 (21:47 +0000)]
ARMDisassembler.cpp: Fix utf8 char in comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157292 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoUntabify and 80-col.
Eric Christopher [Tue, 22 May 2012 18:45:24 +0000 (18:45 +0000)]
Untabify and 80-col.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157274 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFormatting consistency.
Eric Christopher [Tue, 22 May 2012 18:45:18 +0000 (18:45 +0000)]
Formatting consistency.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157273 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAlso compute TopoSigs in synthetic register classes.
Jakob Stoklund Olesen [Tue, 22 May 2012 18:20:28 +0000 (18:20 +0000)]
Also compute TopoSigs in synthetic register classes.

CodeGenRegisterClass has two constructors. Both need to compute the
TopoSigs BitVector.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157271 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agohopefully fix the CMake build. sorry for breakage
Nuno Lopes [Tue, 22 May 2012 17:40:46 +0000 (17:40 +0000)]
hopefully fix the CMake build. sorry for breakage

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157264 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoLSR fix: add a missing phi check during IV hoisting.
Andrew Trick [Tue, 22 May 2012 17:39:59 +0000 (17:39 +0000)]
LSR fix: add a missing phi check during IV hoisting.

Fixes PR12898: SCEVExpander crash.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157263 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoadd a new pass to instrument loads and stores for run-time bounds checking
Nuno Lopes [Tue, 22 May 2012 17:19:09 +0000 (17:19 +0000)]
add a new pass to instrument loads and stores for run-time bounds checking
move EmitGEPOffset from InstCombine to Transforms/Utils/Local.h

(a draft of this) patch reviewed by Andrew, thanks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157261 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agorevert my previous patches that introduced an additional parameter to the objectsize...
Nuno Lopes [Tue, 22 May 2012 15:25:31 +0000 (15:25 +0000)]
revert my previous patches that introduced an additional parameter to the objectsize intrinsic.
After a lot of discussion, we realized it's not the best option for run-time bounds checking

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157255 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoOnly erase virtregs with no uses left.
Jakob Stoklund Olesen [Tue, 22 May 2012 14:52:12 +0000 (14:52 +0000)]
Only erase virtregs with no uses left.

Also make sure registers aren't erased twice if the dead def mentions
the register twice.

This fixes PR12911.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157254 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix PR12858, a crash due to GVN's PRE not fully removing an instruction from the
Duncan Sands [Tue, 22 May 2012 14:17:53 +0000 (14:17 +0000)]
Fix PR12858, a crash due to GVN's PRE not fully removing an instruction from the
leader table.  That's because it wasn't expecting instructions to turn up as
leader for a value number that is not its own, but equality propagation could
create this situation.  One solution is to have the leader table use a WeakVH
but this slows down GVN by about 5%.  Instead just have equality propagation not
add instructions to the leader table, only constants and arguments.  In theory
this might cause GVN to run more (each time it changes something it runs again)
but it doesn't seem to occur enough to cause a slow down.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157251 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix constant used for pshufb mask when lowering v16i8 shuffles. Bug introduced in...
Craig Topper [Tue, 22 May 2012 06:09:38 +0000 (06:09 +0000)]
Fix constant used for pshufb mask when lowering v16i8 shuffles. Bug introduced in r157043. Fixes PR12908.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157236 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoThis patch adds a predicate to existing mips32 and mips64 so that those
Akira Hatanaka [Tue, 22 May 2012 03:10:09 +0000 (03:10 +0000)]
This patch adds a predicate to existing mips32 and mips64 so that those
instruction encodings can be excluded during mips16 processing.

This revision fixes the issue raised by Jim Grosbach.

bool hasStandardEncoding() const { return !inMips16Mode(); }

When micromips is added it will be

bool StandardEncoding() const { return !inMips16Mode()&&  !inMicroMipsMode(); }

No additional testing is needed other than to assure that there is no regression
from this patch.

Patch by Reed Kotler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157234 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agofix the quotient returned by sdivrem() for the case when LHS is negative and RHS...
Nuno Lopes [Tue, 22 May 2012 01:09:48 +0000 (01:09 +0000)]
fix the quotient returned by sdivrem() for the case when LHS is negative and RHS is positive
based on a patch by Preston Briggs, with some modifications

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157231 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFileCheck'ize test, and add a bit to test for r157221.
Jim Grosbach [Mon, 21 May 2012 23:50:00 +0000 (23:50 +0000)]
FileCheck'ize test, and add a bit to test for r157221.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157222 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoARM: .end_data_region mismatch in Thumb2.
Jim Grosbach [Mon, 21 May 2012 23:34:42 +0000 (23:34 +0000)]
ARM: .end_data_region mismatch in Thumb2.

32-bit offset jump tables just use real branch instructions and so aren't
marked as data regions. We were still emitting the .end_data_region
marker though, which assert()ed.

rdar://11499158

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157221 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdded address space qualifier to intrinsic PointerType arguments.
Pete Cooper [Mon, 21 May 2012 23:21:28 +0000 (23:21 +0000)]
Added address space qualifier to intrinsic PointerType arguments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157218 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix use of an unitialized value in the LegalizeOps expansion for ISD::SUB. No in...
Owen Anderson [Mon, 21 May 2012 22:39:20 +0000 (22:39 +0000)]
Fix use of an unitialized value in the LegalizeOps expansion for ISD::SUB.  No in-tree targets exercise this path.

Patch by Micah Villmow.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157215 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoThumb2: RSB source register should be rGRP not GPRnopc.
Jim Grosbach [Mon, 21 May 2012 17:57:17 +0000 (17:57 +0000)]
Thumb2: RSB source register should be rGRP not GPRnopc.

t2RSB defined the operand correctly, but tRSBS didn't.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157200 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoMark an unreachable region of code with llvm_unreachable.
Dan Gohman [Mon, 21 May 2012 17:41:28 +0000 (17:41 +0000)]
Mark an unreachable region of code with llvm_unreachable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157197 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoTypo.
Chad Rosier [Mon, 21 May 2012 17:13:41 +0000 (17:13 +0000)]
Typo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157195 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoMake it so that the MArch, MCPU, MAttrs passed to EngineBuilder are actually used.
Owen Anderson [Mon, 21 May 2012 16:57:17 +0000 (16:57 +0000)]
Make it so that the MArch, MCPU, MAttrs passed to EngineBuilder are actually used.

Patch by Jose Fonseca.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157191 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agotest commit
Patrik Hägglund [Mon, 21 May 2012 13:18:06 +0000 (13:18 +0000)]
test commit

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157184 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoPR1255 (case ranges: work with ConstantRangesSet instead of ConstantInt) related...
Stepan Dyatkovskiy [Mon, 21 May 2012 10:44:40 +0000 (10:44 +0000)]
PR1255 (case ranges: work with ConstantRangesSet instead of ConstantInt) related changes for Execution and Verifier.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157183 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAllow 256-bit shuffles to still be split even if only half of the shuffle comes from...
Craig Topper [Mon, 21 May 2012 06:40:16 +0000 (06:40 +0000)]
Allow 256-bit shuffles to still be split even if only half of the shuffle comes from two 128-bit pieces.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157175 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoGive a small negative bias to giant edge bundles.
Jakob Stoklund Olesen [Mon, 21 May 2012 03:11:23 +0000 (03:11 +0000)]
Give a small negative bias to giant edge bundles.

This helps compile time when the greedy register allocator splits live
ranges in giant functions. Without the bias, we would try to grow
regions through the giant edge bundles, usually to find out that the
region became too big and expensive.

If a live range has many uses in blocks near the giant bundle, the small
negative bias doesn't make a big difference, and we still consider
regions including the giant edge bundle.

Giant edge bundles are usually connected to landing pads or indirect
branches.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157174 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoClear kill flags on the fly when joining intervals.
Jakob Stoklund Olesen [Sun, 20 May 2012 21:41:05 +0000 (21:41 +0000)]
Clear kill flags on the fly when joining intervals.

With physreg joining out of the way, it is easy to recognize the
instructions that need their kill flags cleared while testing for
interference.

This allows us to skip the final scan of all instructions for an 11%
speedup of the coalescer pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157169 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdd RPO to the lexicon.
Nick Lewycky [Sun, 20 May 2012 20:30:47 +0000 (20:30 +0000)]
Add RPO to the lexicon.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157166 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoMake the global base reg GR32_NOSP.
Jakob Stoklund Olesen [Sun, 20 May 2012 18:43:00 +0000 (18:43 +0000)]
Make the global base reg GR32_NOSP.

It can sometimes be used in addressing modes that don't support %ESP.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157165 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoConstrain regclasses in PeepholeOptimizer.
Jakob Stoklund Olesen [Sun, 20 May 2012 18:42:55 +0000 (18:42 +0000)]
Constrain regclasses in PeepholeOptimizer.

It can be necessary to restrict to a sub-class before accessing
sub-registers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157164 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoConstrain register classes in TailDup.
Jakob Stoklund Olesen [Sun, 20 May 2012 18:42:51 +0000 (18:42 +0000)]
Constrain register classes in TailDup.

When rewriting operands, make sure the new registers have a compatible
register class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157163 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoWhen legalising shifts, do not pre-build a list of operands which
Peter Collingbourne [Sun, 20 May 2012 18:36:15 +0000 (18:36 +0000)]
When legalising shifts, do not pre-build a list of operands which
may be RAUW'd by the recursive call to LegalizeOps; instead, retrieve
the other operands when calling UpdateNodeOperands.  Fixes PR12889.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157162 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoEmit memcmp directly from the StringMatcherEmitter.
Benjamin Kramer [Sun, 20 May 2012 18:10:42 +0000 (18:10 +0000)]
Emit memcmp directly from the StringMatcherEmitter.

There should be no difference in the resulting binary, given a sufficiently
smart compiler. However we already had compiler timeouts on the generated
code in Intrinsics.gen, this hopefully makes the lives of slow buildbots a
little easier.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157161 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoPlug a leak when using MCJIT.
Benjamin Kramer [Sun, 20 May 2012 17:24:08 +0000 (17:24 +0000)]
Plug a leak when using MCJIT.

Found by valgrind.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157160 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdd a missing PPC 64-bit stwu pattern.
Hal Finkel [Sun, 20 May 2012 17:11:24 +0000 (17:11 +0000)]
Add a missing PPC 64-bit stwu pattern.

This seems to fix the remaining compile-time failures on PPC64 when
compiling with -enable-ppc-preinc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157159 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoUse TargetMachine's register info instead of creating a new one and leaking it.
Benjamin Kramer [Sun, 20 May 2012 11:24:27 +0000 (11:24 +0000)]
Use TargetMachine's register info instead of creating a new one and leaking it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157155 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoUse the right register class for LDRrs.
Jakob Stoklund Olesen [Sun, 20 May 2012 06:38:47 +0000 (06:38 +0000)]
Use the right register class for LDRrs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157152 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoTransfer memory operands to the right instruction.
Jakob Stoklund Olesen [Sun, 20 May 2012 06:38:42 +0000 (06:38 +0000)]
Transfer memory operands to the right instruction.

They need to go on the PICLDR as the verifier points out.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157151 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoProperly constrain register classes for sub-registers.
Jakob Stoklund Olesen [Sun, 20 May 2012 06:38:37 +0000 (06:38 +0000)]
Properly constrain register classes for sub-registers.

Not all GR64 registers have sub_8bit sub-registers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157150 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoProperly constrain register classes in 2-addr.
Jakob Stoklund Olesen [Sun, 20 May 2012 06:38:32 +0000 (06:38 +0000)]
Properly constrain register classes in 2-addr.

X86 has 2-addr instructions with different constraints on the tied def
and use operands. One is GR32, one is GR32_NOSP.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157149 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoMissed a push_back in r157147.
Jakob Stoklund Olesen [Sun, 20 May 2012 05:28:53 +0000 (05:28 +0000)]
Missed a push_back in r157147.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157148 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAvoid deleting extra copies when RegistersDefinedFromSameValue is true.
Jakob Stoklund Olesen [Sun, 20 May 2012 04:52:48 +0000 (04:52 +0000)]
Avoid deleting extra copies when RegistersDefinedFromSameValue is true.

This function adds copies to be erased to DupCopies, avoid also adding
them to DeadCopies.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157147 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix build bots.
Jakob Stoklund Olesen [Sun, 20 May 2012 03:57:12 +0000 (03:57 +0000)]
Fix build bots.

Avoid looking at the operands of a potentially erased instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157146 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoLiveRangeQuery simplifies shrinkToUses().
Jakob Stoklund Olesen [Sun, 20 May 2012 02:54:52 +0000 (02:54 +0000)]
LiveRangeQuery simplifies shrinkToUses().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157145 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoUse LiveRangeQuery in ScheduleDAGInstrs.
Jakob Stoklund Olesen [Sun, 20 May 2012 02:44:38 +0000 (02:44 +0000)]
Use LiveRangeQuery in ScheduleDAGInstrs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157144 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoEliminate some uses of struct LiveRange.
Jakob Stoklund Olesen [Sun, 20 May 2012 02:44:36 +0000 (02:44 +0000)]
Eliminate some uses of struct LiveRange.

That struct ought to be a LiveInterval implementation detail.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157143 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoUse LiveRangeQuery instead of getLiveRangeContaining().
Jakob Stoklund Olesen [Sun, 20 May 2012 02:44:33 +0000 (02:44 +0000)]
Use LiveRangeQuery instead of getLiveRangeContaining().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157142 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdd a LiveRangeQuery class.
Jakob Stoklund Olesen [Sun, 20 May 2012 02:44:30 +0000 (02:44 +0000)]
Add a LiveRangeQuery class.

This class is meant to be the primary interface for examining a live
range in the vicinity on a given instruction. It avoids all the messy
dealings with iterators and early clobbers.

This is a more abstract interface to live ranges, hiding the
implementation as a vector of segments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157141 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoDo not pass an invalid domtree to SimplifyInstruction from
Peter Collingbourne [Sun, 20 May 2012 01:32:09 +0000 (01:32 +0000)]
Do not pass an invalid domtree to SimplifyInstruction from
LoopUnswitch.  Fixes PR12887.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157140 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoSimplify overlap check.
Jakob Stoklund Olesen [Sat, 19 May 2012 23:59:27 +0000 (23:59 +0000)]
Simplify overlap check.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157137 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix 12892.
Jakob Stoklund Olesen [Sat, 19 May 2012 23:34:59 +0000 (23:34 +0000)]
Fix 12892.

Dead code elimination during coalescing could cause a virtual register
to be split into connected components. The following rewriting would be
confused about the already joined copies present in the code, but
without a corresponding value number in the live range.

Erase all joined copies instantly when joining intervals such that the
MI and LiveInterval representations are always in sync.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157135 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoDo not eliminate allocas whose alignment exceeds that of the
Peter Collingbourne [Sat, 19 May 2012 22:52:10 +0000 (22:52 +0000)]
Do not eliminate allocas whose alignment exceeds that of the
copied-in constant, as a subsequent user may rely on over alignment.
Fixes PR12885.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157134 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdd a FIXME about access to negative stack-pointer offsets on PPC32.
Hal Finkel [Sat, 19 May 2012 21:52:55 +0000 (21:52 +0000)]
Add a FIXME about access to negative stack-pointer offsets on PPC32.

The current code will generate a prologue which starts with something like:
        mflr 0
        stw 31, -4(1)
        stw 0, 4(1)
        stwu 1, -16(1)

But under the PPC32 SVR4 ABI, access to negative offsets from R1 is not allowed.

This was pointed out by Peter Bergner.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157133 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRemove the late DCE in RegisterCoalescer.
Jakob Stoklund Olesen [Sat, 19 May 2012 21:02:31 +0000 (21:02 +0000)]
Remove the late DCE in RegisterCoalescer.

Dead code and joined copies are now eliminated on the fly, and there is
no need for a post pass.

This makes the coalescer work like other modern register allocator
passes: Code is changed on the fly, there is no pending list of changes
to be committed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157132 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoErase joined copies immediately.
Jakob Stoklund Olesen [Sat, 19 May 2012 20:54:07 +0000 (20:54 +0000)]
Erase joined copies immediately.

The late dead code elimination is no longer necessary.

The test changes are cause by a register hint that can be either %rdi or
%rax. The choice depends on the use list order, which this patch changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157131 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoFix an ancient bug in removeCopyByCommutingDef().
Jakob Stoklund Olesen [Sat, 19 May 2012 20:54:03 +0000 (20:54 +0000)]
Fix an ancient bug in removeCopyByCommutingDef().

Before rewriting uses of one value in A to register B, check that there
are no tied uses. That would require multiple A values to be rewritten.

This bug can't bite in the current version of the code for a fairly
subtle reason: A tied use would have caused 2-addr to insert a copy
before the use. If the copy has been coalesced, it will be found by the
same loop changed by this patch, and the optimization is aborted.

This was exposed by 400.perlbench and lua after applying a patch that
deletes joined copies aggressively.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157130 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoOn Haswell, perfer storing YMM registers using a single instruction.
Nadav Rotem [Sat, 19 May 2012 20:30:08 +0000 (20:30 +0000)]
On Haswell, perfer storing YMM registers using a single instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157129 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoAdd support for additional in-reg vbroadcast patterns
Nadav Rotem [Sat, 19 May 2012 19:57:37 +0000 (19:57 +0000)]
Add support for additional in-reg vbroadcast patterns

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157127 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoDisambiguate call to operator==.
Benjamin Kramer [Sat, 19 May 2012 19:32:11 +0000 (19:32 +0000)]
Disambiguate call to operator==.

clang++ and msvc happily had no problem with it but g++ refuses to compile.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157126 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoCollect inflatable virtual registers on the fly.
Jakob Stoklund Olesen [Sat, 19 May 2012 19:25:00 +0000 (19:25 +0000)]
Collect inflatable virtual registers on the fly.

There is no reason to defer the collection of virtual registers whose
register class may be replaced with a larger class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157125 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoValueMap: Use DenseMap's find_as mechanism to reduce use list churn.
Benjamin Kramer [Sat, 19 May 2012 19:15:32 +0000 (19:15 +0000)]
ValueMap: Use DenseMap's find_as mechanism to reduce use list churn.

Otherwise just looking up a value in the map requires creating a VH, adding it to the use lists and destroying it again.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157124 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoMove CallbackVHs dtor inline, it can be devirtualized in many cases. Move the other...
Benjamin Kramer [Sat, 19 May 2012 19:15:25 +0000 (19:15 +0000)]
Move CallbackVHs dtor inline, it can be devirtualized in many cases. Move the other virtual methods out of line as they are only called from within Value.cpp anyway.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157123 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoTidy up some spacing and inconsistent use of pre/post increment. No functional change...
Craig Topper [Sat, 19 May 2012 19:14:18 +0000 (19:14 +0000)]
Tidy up some spacing and inconsistent use of pre/post increment. No functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157122 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoRemove extra semicolons.
Benjamin Kramer [Sat, 19 May 2012 16:44:12 +0000 (16:44 +0000)]
Remove extra semicolons.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157118 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoProvide move semantics for TinyPtrVector and for DenseMap's rehash function.
Benjamin Kramer [Sat, 19 May 2012 13:28:54 +0000 (13:28 +0000)]
Provide move semantics for TinyPtrVector and for DenseMap's rehash function.

This makes DenseMap<..., TinyPtrVector<...>> as cheap as it always should've been!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157113 91177308-0d34-0410-b5e6-96231b3b80d8

11 years agoOrdinary PR1255 patch: DifferenceEngine and CPPBackend adopted to the new SwitchInst...
Stepan Dyatkovskiy [Sat, 19 May 2012 13:14:30 +0000 (13:14 +0000)]
Ordinary PR1255 patch: DifferenceEngine and CPPBackend adopted to the new SwitchInst methods.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157112 91177308-0d34-0410-b5e6-96231b3b80d8