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10622 Commits

Author SHA1 Message Date
Devang Patel
41e2a94595 Let FE mark a variable as artificial variable. 
llvm-svn: 115102
 2010-09-29 23:07:21 +00:00
Evan Cheng
b44d480808 Model Cortex-a9 load to SUB, RSB, ADD, ADC, SBC, RSC, CMN, MVN, or CMP 
pipeline forwarding path.

llvm-svn: 115098
 2010-09-29 22:42:35 +00:00
Benjamin Kramer
cf690de5bb Silence msvc warnings. 
llvm-svn: 115097
 2010-09-29 22:38:50 +00:00
Devang Patel
f600d9f0ed Add support to let FE encode method access specifier. 
llvm-svn: 115089
 2010-09-29 21:44:16 +00:00
Owen Anderson
267ca58af3 UnreachableBlockElim could incorrectly return false when it had not modified the CFG, but HAD modified some PHI nodes. Fixes PR8174. 
llvm-svn: 115083
 2010-09-29 20:57:19 +00:00
Devang Patel
fd6665e8aa Assign DW_ACCESS_public accessibility attribute to members by default. 
llvm-svn: 115067
 2010-09-29 19:08:08 +00:00
Bill Wendling
fc29f0d706 Revert r114997. It was causing a failure on darwin10-selfhost. 
llvm-svn: 115002
 2010-09-28 23:11:55 +00:00
Oscar Fuentes
eb27a44982 Removed a bunch of unnecessary target_link_libraries. 
llvm-svn: 114999
 2010-09-28 22:39:14 +00:00
Bill Wendling
13775375ed Fix a FIXME. _foo.eh symbols are currently always exported so that the linker 
knows about them. This is not necessary on 10.6 and later.

llvm-svn: 114997
 2010-09-28 22:36:56 +00:00
Owen Anderson
87245e5e04 Give the if-converter access to MachineLoopInfo, and use it to generate plausible branch prediction 
estimates.

llvm-svn: 114981
 2010-09-28 20:42:15 +00:00
Owen Anderson
c0e1200323 Part one of switching to using a more sane heuristic for determining if-conversion profitability. 
Rather than having arbitrary cutoffs, actually try to cost model the conversion.

For now, the constants are tuned to more or less match our existing behavior, but these will be
changed to reflect realistic values as this work proceeds.

llvm-svn: 114973
 2010-09-28 18:32:13 +00:00
Devang Patel
e1f502ee26 Provide an interface to let FEs anchor debug info for types. 
llvm-svn: 114969
 2010-09-28 18:08:20 +00:00
Devang Patel
0a414c918a Remove dead argument. 
llvm-svn: 114920
 2010-09-27 23:15:27 +00:00
Dale Johannesen
6807dd822b Don't try to make a vector of x86mmx; this won't work, 
and asserts.

llvm-svn: 114843
 2010-09-27 17:29:14 +00:00
Chris Lattner
0ebcc18dec the latest assembler that runs on powerpc 10.4 machines doesn't 
support aligned comm.  Detect when compiling for 10.4 and don't
emit an alignment for comm.  THis will hopefully fix PR8198.

llvm-svn: 114817
 2010-09-27 06:44:54 +00:00
Lang Hames
d342ada445 Fixed some tests to avoid LiveIntervals::getInstructionFromIndex(..) overhead where possible. Thanks to Jakob for the suggestions. 
llvm-svn: 114798
 2010-09-26 03:37:09 +00:00
Jakob Stoklund Olesen
53ffe6c58b Avoid using VNInfo::getCopy as much as possible. I want to get rid of it. 
llvm-svn: 114794
 2010-09-25 18:10:38 +00:00
Lang Hames
fb22f00975 Removed VNInfo::isDefAccurate(). Def "accuracy" can be checked by testing whether LiveIntervals::getInstructionFromIndex(def) returns NULL. 
llvm-svn: 114791
 2010-09-25 12:04:16 +00:00
Jakob Stoklund Olesen
af7994784c Remove SlotIndex::PHI_BIT. It is no longer used by anything. 
llvm-svn: 114779
 2010-09-25 00:45:18 +00:00
Jakob Stoklund Olesen
e778ee646c Remove the only use of SlotIndex::isPHI. This bit is not being set consistently 
and it will be removed shortly.

llvm-svn: 114778
 2010-09-25 00:45:15 +00:00
Jakob Stoklund Olesen
794b5e00d7 Terminator gaps were unused. Might as well delete them. 
llvm-svn: 114776
 2010-09-24 23:58:56 +00:00
John Thompson
83fab695f4 Fix for test/CodeGen/PowerPC/2008-10-17-AsmMatchingOperands.ll crash. 
llvm-svn: 114767
 2010-09-24 22:24:05 +00:00
Michael J. Spencer
87fea6690f Get rid of pop_macro warnings on MSVC. 
llvm-svn: 114750
 2010-09-24 19:48:47 +00:00
Nicolas Geoffray
3a40b52aea Attach a DebugLoc to a GC point in order to get precise information in the JIT of a GC point. 
llvm-svn: 114736
 2010-09-24 17:27:50 +00:00
Evan Cheng
d24bf49867 Revert 114634 for now since buildbot claim it broke Clang self-hosting. I doubt it but it's possible it's exposing another bug somewhere. 
llvm-svn: 114681
 2010-09-23 18:32:19 +00:00
Oscar Fuentes
b58181793d Fix VS 2010 build. 
Patch by Nathan Jeffords!

llvm-svn: 114661
 2010-09-23 16:59:36 +00:00
Evan Cheng
8266c28b96 Follow up to r114630. Do not optimize away unconditional branch following a conditional one. 
llvm-svn: 114634
 2010-09-23 07:18:35 +00:00
Evan Cheng
4d7157b246 Don't sink insert_subreg, subreg_to_reg, reg_sequence. They are meant to be 
close to their sources to facilitate coalescing.

llvm-svn: 114631
 2010-09-23 06:53:00 +00:00
Evan Cheng
3866797d9a SDISel should not optimize a unconditional branch following a conditional branch 
when the unconditional branch destination is the fallthrough block. The
canonicalization makes it easier to allow optimizations on DAGs to invert
conditional branches. The branch folding pass (and AnalyzeBranch) will clean up
the unnecessary unconditional branches later.

This is one of the patches leading up to disabling codegen prepare critical edge
splitting.

llvm-svn: 114630
 2010-09-23 06:51:55 +00:00
Lang Hames
f670bff621 Moved the PBQP allocator class out of the header and back in to the cpp file to hide the gory details. 
Allocator instances can now be created by calling createPBQPRegisterAllocator.

Tidied up use of CoalescerPair as per Jakob's suggestions.

Made the new PBQPBuilder based construction process the default. The internal construction process
remains in-place and available via -pbqp-builder=false for now. It will be removed shortly if the new
process doesn't cause any regressions.

llvm-svn: 114626
 2010-09-23 04:28:54 +00:00
Owen Anderson
7d6373ea9d A select between a constant and zero, when fed by a bit test, can be efficiently 
lowered using a series of shifts.
Fixes <rdar://problem/8285015>.

llvm-svn: 114599
 2010-09-22 22:58:22 +00:00
Devang Patel
8914755c40 Use DW_OP_fbreg when offset is based on frame register. 
llvm-svn: 114585
 2010-09-22 21:10:38 +00:00
Jakob Stoklund Olesen
c5ea87bca7 Build the complement interval dupli after the split intervals instead of 
creating it before and subtracting split ranges.

This way, the SSA update code in LiveIntervalMap can properly create and use new
phi values in dupli. Now it is possible to create split regions where a value
escapes along two different CFG edges, creating phi values outside the split
region.

This is a work in progress and probably quite broken.

llvm-svn: 114492
 2010-09-21 22:32:21 +00:00
John Thompson
5c363e0ebf Fixed pr20314-2.c failure, added E, F, p constraint letters. 
llvm-svn: 114490
 2010-09-21 22:04:54 +00:00
Chris Lattner
6543dacfac Rework passing parent pointers into complexpatterns, I forgot 
that complex patterns are matched after the entire pattern has
a structural match, therefore the NodeStack isn't in a useful
state when the actual call to the matcher happens.

llvm-svn: 114489
 2010-09-21 22:00:25 +00:00
Devang Patel
a6b9c79c24 If only user of a vreg is an copy instruction to export copy of vreg out of current basic block then insert DBG_VALUE so that debug value of the variable is also transfered to new vreg. 
Testcase is in r114476.
This fixes radar 8412415.

llvm-svn: 114478
 2010-09-21 20:56:33 +00:00
Chris Lattner
7798a97041 correct this logic. 
llvm-svn: 114474
 2010-09-21 20:46:40 +00:00
Owen Anderson
f6dd8e7f5c Reimplement r114460 in target-independent DAGCombine rather than target-dependent, by using 
the predicate to discover the number of sign bits.  Enhance X86's target lowering to provide
a useful response to this query.

llvm-svn: 114473
 2010-09-21 20:42:50 +00:00
Chris Lattner
a911c9ed3a just like they can opt into getting the root of the pattern being 
matched, allow ComplexPatterns to opt into getting the parent node
of the operand being matched.

llvm-svn: 114472
 2010-09-21 20:37:12 +00:00
Jakob Stoklund Olesen
cb8f334578 Refix MSVC9 and upper_bound. It actually needs a fully symmetric comparator. 
llvm-svn: 114469
 2010-09-21 20:16:12 +00:00
Chris Lattner
32ec32b690 finish pushing MachinePointerInfo through selectiondags. At this point, 
I think I've audited all uses, so it should be dependable for address spaces,
and the pointer+offset info should also be accurate when there.

llvm-svn: 114464
 2010-09-21 18:58:22 +00:00
Chris Lattner
3dde58c15a convert a couple more places to use the new getStore() 
llvm-svn: 114463
 2010-09-21 18:51:21 +00:00
Chris Lattner
8cdc5e75f7 update a bunch of code to use the MachinePointerInfo version of getStore. 
llvm-svn: 114461
 2010-09-21 18:41:36 +00:00
Jakob Stoklund Olesen
d09d4a9693 Don't pollute the global namespace. 
llvm-svn: 114459
 2010-09-21 18:34:17 +00:00
Jakob Stoklund Olesen
375867aa60 MSVC9 does not support upper_bound with an asymmetric comparator. 
llvm-svn: 114455
 2010-09-21 18:24:30 +00:00
Bob Wilson
c4345abcc0 Define the TargetLowering::getTgtMemIntrinsic hook for ARM so that NEON load 
and store intrinsics are represented with MemIntrinsicSDNodes.

llvm-svn: 114454
 2010-09-21 17:56:22 +00:00
Chris Lattner
86b3f287ce eliminate an old SelectionDAG::getTruncStore method, propagating 
MachinePointerInfo around more.

llvm-svn: 114452
 2010-09-21 17:42:31 +00:00
Chris Lattner
bf98f86fed eliminate last SelectionDAG::getLoad old entrypoint, on to stores. 
llvm-svn: 114450
 2010-09-21 17:28:52 +00:00
Chris Lattner
8af4fb7aed fix the code that infers SV info to be correct when dealing 
with an indexed load/store that has an offset in the index.

llvm-svn: 114449
 2010-09-21 17:24:05 +00:00
Jakob Stoklund Olesen
03451a0e51 Add LiveInterval::find and use it for most LiveRange searching operations 
instead of calling lower_bound or upper_bound directly.

This cleans up the search logic a bit because {lower,upper}_bound compare
LR->start by default, and it is usually simpler to search LR->end.

Funnelling all searches through one function also makes it possible to replace
the search algorithm with something faster than binary search.

llvm-svn: 114448
 2010-09-21 17:12:18 +00:00