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39595 Commits

Author SHA1 Message Date
Jakob Stoklund Olesen
71ad56676d Don't track kills in VNInfo. Use interval ends instead. 
The VNInfo.kills vector was almost unused except for all the code keeping it
updated. The few places using it were easily rewritten to check for interval
ends instead.

The two new methods LiveInterval::killedAt and killedInRange are replacements.

This brings us down to 3 independent data structures tracking kills.

llvm-svn: 106905
 2010-06-25 22:53:05 +00:00
Evan Cheng
346aecdb8b Change if-conversion block size limit checks to add some flexibility. 
llvm-svn: 106901
 2010-06-25 22:42:03 +00:00
Bob Wilson
d1e4e67954 Add support for encoding 3-register NEON instructions, and fix 
emitNEON2RegInstruction's handling of 2-address operands.

llvm-svn: 106900
 2010-06-25 22:40:46 +00:00
Dan Gohman
bf52a2b872 In GenerateReassociations, don't bother thinking about individual 
SCEVUnknown values which are loop-variant, as LSR can't do anything
interesting with these values in any case. This fixes very slow compile
times on loops which have large numbers of such values.

llvm-svn: 106897
 2010-06-25 22:32:18 +00:00
Bruno Cardoso Lopes
04ac570a8d Add several AVX MOV flavors 
Support VEX encoding for MRMDestReg

llvm-svn: 106896
 2010-06-25 22:27:51 +00:00
Devang Patel
b5b193fb87 Collect debug info for optimized variables of inlined functions. 
llvm-svn: 106895
 2010-06-25 22:07:34 +00:00
Jim Grosbach
a2449e2faa 80 column and typo fix 
llvm-svn: 106894
 2010-06-25 22:02:28 +00:00
Dale Johannesen
b1fc776fca The hasMemory argument is irrelevant to how the argument 
for an "i" constraint should get lowered; PR 6309.  While
this argument was passed around a lot, this is the only
place it was used, so it goes away from a lot of other
places.

llvm-svn: 106893
 2010-06-25 21:55:36 +00:00
Bob Wilson
a1739048a1 Add support for encoding 2-register NEON instructions. 
llvm-svn: 106891
 2010-06-25 21:17:19 +00:00
Dan Gohman
388f198fe5 pcmpeqd and friends are Commutable. 
llvm-svn: 106886
 2010-06-25 21:05:35 +00:00
Bob Wilson
4d54e03068 Fix indentation. 
llvm-svn: 106881
 2010-06-25 20:54:44 +00:00
Bill Wendling
3f9cb6828a - Reapply r106066 now that the bzip2 build regression has been fixed. 
- 2010-06-25-CoalescerSubRegDefDead.ll is the testcase for r106878.

llvm-svn: 106880
 2010-06-25 20:48:10 +00:00
Bill Wendling
2f7236d84b We should remove the live range from the destination register only if *all* defs 
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
 2010-06-25 20:42:55 +00:00
Bruno Cardoso Lopes
72ca75e10f Move the last piece of SSE2 convert instructions to the Convert Instructions section 
llvm-svn: 106877
 2010-06-25 20:29:27 +00:00
Bruno Cardoso Lopes
fc7bfafe52 More SSE refactoring, this time with different types of MOVs 
llvm-svn: 106876
 2010-06-25 20:22:12 +00:00
Dan Gohman
01de3704f9 Eliminate a redundant FoldingSet lookup. 
llvm-svn: 106872
 2010-06-25 18:47:08 +00:00
Jim Grosbach
584fae6cc4 IT instructions are considered to be scheduling hazards, but are scheduled 
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
 2010-06-25 18:43:14 +00:00
Bruno Cardoso Lopes
0db2df31f4 Refactoring of more SSE conversion instructions. Also add some AVX instrinsics Int_V... placeholders 
llvm-svn: 106867
 2010-06-25 18:06:22 +00:00
Dale Johannesen
8e578aac71 Cosmetic. 
llvm-svn: 106865
 2010-06-25 17:41:07 +00:00
Benjamin Kramer
b36c7df69c Rewrite MemoryBuffer::getSTDIN to use read(2) and a SmallVector buffer. 
llvm-svn: 106856
 2010-06-25 16:07:18 +00:00
Duncan Sands
4fa152555d Remove variables which are assigned to but for which the value 
is not used.  Spotted by gcc-4.6.

llvm-svn: 106854
 2010-06-25 14:48:39 +00:00
Benjamin Kramer
1d187ed03e Bring back the empty vector workaround I removed in r106839. Looks like MSVC needs it. 
llvm-svn: 106841
 2010-06-25 12:51:01 +00:00
Benjamin Kramer
afe7228ede Tweak MemoryBuffer to allocate the class itself, the name and possibly the 
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
 2010-06-25 11:50:40 +00:00
Gabor Greif
0dfb39a8f8 use ArgOperand accessors 
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
 2010-06-25 11:25:30 +00:00
Gabor Greif
d3bf34c9d8 use ArgOperand API (the simple part) 
llvm-svn: 106837
 2010-06-25 09:44:37 +00:00
Gabor Greif
dd11f62c9d use ArgOperand API 
llvm-svn: 106836
 2010-06-25 09:38:13 +00:00
Gabor Greif
138c65a703 use ArgOperand API 
llvm-svn: 106835
 2010-06-25 09:36:23 +00:00
Gabor Greif
3a105d7dcf use ArgOperand API and CallSite to access arguments of CallInst 
llvm-svn: 106833
 2010-06-25 09:03:52 +00:00
Gabor Greif
9a159af577 use ArgOperand API and CallSite to access arguments of CallInst 
llvm-svn: 106829
 2010-06-25 08:48:19 +00:00
Gabor Greif
4f48ff5c1b use ArgOperand API 
llvm-svn: 106828
 2010-06-25 08:24:59 +00:00
Gabor Greif
77b886a22b prune an include 
llvm-svn: 106827
 2010-06-25 08:16:50 +00:00
Gabor Greif
42cbeeeb2e use ArgOperand API (one more hunk I could split) 
llvm-svn: 106825
 2010-06-25 07:58:41 +00:00
Gabor Greif
d2559bceee use ArgOperand API (some hunks I could split) 
llvm-svn: 106824
 2010-06-25 07:57:14 +00:00
Gabor Greif
7e08d99fd4 use ArgOperand API; tighten type of handleFreeWithNonTrivialDependency to be able to use isFreeCall whithout a cast or new overload 
llvm-svn: 106823
 2010-06-25 07:40:32 +00:00
Bob Wilson
a779332a5e Add missing ARM and Thumb data layout info for vector types. 
Radar 8128745.

llvm-svn: 106820
 2010-06-25 04:41:08 +00:00
Bob Wilson
0a84b9b677 Reduce indentation. 
llvm-svn: 106819
 2010-06-25 04:12:31 +00:00
Dale Johannesen
8cbc00b2ac Fix a case where an earlyclobber operand of an asm 
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
 2010-06-25 00:49:43 +00:00
Bruno Cardoso Lopes
bde2881855 Add some AVX convert instructions 
llvm-svn: 106815
 2010-06-25 00:39:30 +00:00
Jakob Stoklund Olesen
7e15f420d0 Make sure all eliminated kills are removed from VNInfo lists. 
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
 2010-06-24 23:57:35 +00:00
Dan Gohman
f493a5d0d7 Add some comments. 
llvm-svn: 106809
 2010-06-24 23:41:59 +00:00
Bruno Cardoso Lopes
4663112339 Refactoring of SSE convert intrinsics 
llvm-svn: 106808
 2010-06-24 23:37:07 +00:00
Dan Gohman
0be71f4660 Teach EmitLiveInCopies to omit copies for unused virtual registers, 
and to clean up unused incoming physregs from the live-in list.

llvm-svn: 106805
 2010-06-24 22:23:02 +00:00
Bruno Cardoso Lopes
bacc90a80d Refactoring of SSE conversion instructions 
llvm-svn: 106804
 2010-06-24 22:22:21 +00:00
Bruno Cardoso Lopes
84ce865fea Refactor SSE cmp intrinsics and declare the same for AVX 
llvm-svn: 106796
 2010-06-24 22:04:40 +00:00
Bill Wendling
eebd6fa159 It's possible that a flag is added to the SDNode that points back to the 
original SDNode. This is badness. Also, this function allows one SDNode to point
multiple flags to another SDNode. Badness as well.

llvm-svn: 106793
 2010-06-24 22:00:37 +00:00
Devang Patel
af1d4eede5 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
 2010-06-24 21:51:19 +00:00
Jakob Stoklund Olesen
3b3f37f51a Don't return a std::vector in the Spiller interface, but take a reference to a 
vector instead. This avoids needless copying and allocation.

Add documentation.

llvm-svn: 106788
 2010-06-24 20:54:29 +00:00
Bruno Cardoso Lopes
11a236d970 - Add AVX COMI{SS,SD}{rr,rm} and UCOMI{SS,SD}{rr,rm}. 
- Fix a small VEX encoding issue.
- Move compare instructions to their appropriate place.

llvm-svn: 106787
 2010-06-24 20:48:23 +00:00
Jakob Stoklund Olesen
7a5bf34236 Remove the now unused LiveIntervals::getVNInfoSourceReg(). 
This method was always a bit too simplistic for the real world. It didn't really
deal with subregisters and such.

llvm-svn: 106781
 2010-06-24 20:18:15 +00:00
Jakob Stoklund Olesen
9a567d08e5 Teach AdjustCopiesBackFrom to also use CoalescerPair to identify compatible copies. 
llvm-svn: 106780
 2010-06-24 20:16:00 +00:00