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Author SHA1 Message Date
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
07ff7584a7 Don't write an output file to cwd, and put an rdar prefix on 
an rdar number.

llvm-svn: 106810
 2010-06-24 23:45:15 +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
Bob Wilson
5ddef25de2 Change array references to match my previous change to use the public type 
names for the array fields.

llvm-svn: 106803
 2010-06-24 22:21:19 +00:00
Oscar Fuentes
4c30188483 DataTypes.h.cmake (MSVC): Protect some #define's and use specific 
suffixes for integer types.

llvm-svn: 106797
 2010-06-24 22:05:52 +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
Bob Wilson
45cb379048 Fix up some comments. 
llvm-svn: 106795
 2010-06-24 22:04:30 +00:00
Bob Wilson
f0df97699e Use the struct tags mandated by ARM's ABI. Also use the public type names for 
the array fields in these structs.

llvm-svn: 106794
 2010-06-24 22:03:41 +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
Dale Johannesen
257b602b8b Disallow matching "i" constraint to symbol addresses when 
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
 2010-06-24 20:14:51 +00:00
Eric Christopher
7405c7bdb8 Silence some unused variable warnings. 
llvm-svn: 106778
 2010-06-24 20:14:34 +00:00
Jakob Stoklund Olesen
1a6a8cfc51 Remove the -fast-spill option. 
This code path has never really been used, and we are going to be handling
spilling through the Spiller interface in the future.

llvm-svn: 106777
 2010-06-24 19:56:08 +00:00
Dan Gohman
47d999b275 Document problems that I encountered when working on -scev-aa. 
llvm-svn: 106776
 2010-06-24 19:34:03 +00:00
Evan Cheng
c3976de390 Oops. IT block formation pass needs to be run at any optimization level. 
llvm-svn: 106775
 2010-06-24 19:10:14 +00:00
Bill Wendling
09bb5dd804 Loosen up the requirements in the Horrible Hack(tm) to include all selectors 
which don't have a catch-all associated with them not just clean-ups. This fixes
the SingleSource/Benchmarks/Shootout-C++/except.cpp testcase that broke because
of my change r105902.

llvm-svn: 106772
 2010-06-24 18:49:10 +00:00
Eli Friedman
0698ec53f6 Always allow Thumb-2 SXTB, SXTH, UXTB, and UXTH. Fixes PR7324. 
llvm-svn: 106770
 2010-06-24 18:20:04 +00:00
Jakob Stoklund Olesen
9f8104463f Replace a big gob of old coalescer logic with the new CoalescerPair class. 
CoalescerPair can determine if a copy can be coalesced, and which register gets
merged away. The old logic in SimpleRegisterCoalescing had evolved into
something a bit too convoluted.

This second attempt fixes some crashes that only occurred Linux.

llvm-svn: 106769
 2010-06-24 18:15:01 +00:00
Dan Gohman
b9c2ab6698 Add an exports file for the Hello example plugin. 
llvm-svn: 106768
 2010-06-24 17:36:51 +00:00
Jakob Stoklund Olesen
3ac29b4f55 Print the LSBs of a SlotIndex symbolically using letters referring to the 
[L]oad, [u]se, [d]ef, or [S]tore slots.

This makes it easier to see if two indices refer to the same instruction,
avoiding mental mod 4 calculations.

llvm-svn: 106766
 2010-06-24 17:31:07 +00:00
Dan Gohman
e457bb6d5a Simplify this code; switch lowering shouldn't produce cases 
which trivially fold away.

llvm-svn: 106765
 2010-06-24 17:08:31 +00:00
Dan Gohman
dc46a52b6a A few minor micro-optimizations. 
llvm-svn: 106764
 2010-06-24 16:57:52 +00:00
Dan Gohman
006947c4da Teach getExactSDiv to evaluate x/1 to x up front, as it's a common 
enough special case, and it theoretically allows more folding because
it works even when x is unanalyzable.

llvm-svn: 106763
 2010-06-24 16:51:25 +00:00
Bob Wilson
26297589b7 PR7458: Try commuting Thumb2 instruction operands to put them into 2-address 
form so they can be narrowed to 16-bit instructions.

llvm-svn: 106762
 2010-06-24 16:50:20 +00:00
Bob Wilson
2b2d62ad11 Edit and clarify comments for TargetInstrInfo methods: 
None of the existing implementations of commuteInstruction create new
instructions unless the NewMI parameter is true, but the comment had
implied otherwise.

findCommutedOpIndices returns false, not true, when it doesn't know
how to commute the instruction.

llvm-svn: 106761
 2010-06-24 16:48:26 +00:00
Dan Gohman
bfbfa95b51 Don't try to preserve pointer types in SCEVConstants; the old code 
was over-complicated.

llvm-svn: 106760
 2010-06-24 16:47:03 +00:00
Dan Gohman
bb9ce7fbcd Fix copy+pasto issues in isMulSExtable. 
llvm-svn: 106759
 2010-06-24 16:45:11 +00:00
Dan Gohman
35a5a7285a Make the trunc code consistent with the zext and sext code in its 
handling of pointer types.

llvm-svn: 106757
 2010-06-24 16:33:38 +00:00
Dan Gohman
4f088f99fe Add a comment about a thread safety issue in Statistic.h. 
llvm-svn: 106756
 2010-06-24 16:31:32 +00:00
Dan Gohman
abeebe353c Add overloads for getFile and getFileOrSTDIN which take a const char * 
instead of a StringRef, avoiding the need to copy the string in the
common case.

llvm-svn: 106754
 2010-06-24 16:25:50 +00:00
Jakob Stoklund Olesen
f01eb3aab6 Be more strict about subreg-to-subreg copies in CoalescerPair. 
Also keep track of the original DstREg before subregister adjustments.

llvm-svn: 106753
 2010-06-24 16:19:28 +00:00
Gabor Greif
b81fcc907e use ArgOperand API 
llvm-svn: 106752
 2010-06-24 16:11:44 +00:00
Jakob Stoklund Olesen
a65e246ecf Verify that VNI kills are pointing to existing instructions. 
In this case it is essential that the kill is real because the spiller will
decide to omit a spill if it thinks there is a later kill.

llvm-svn: 106751
 2010-06-24 15:56:59 +00:00
Gabor Greif
04a3ec3771 use (even more, still) ArgOperand API 
llvm-svn: 106750
 2010-06-24 15:51:11 +00:00
Dan Gohman
d79ac4a097 Eliminate the other half of the BRCOND optimization, and update 
as many tests as possible.

llvm-svn: 106749
 2010-06-24 15:24:03 +00:00
Dan Gohman
3285057a9d Eliminate the first have of the optimization which eliminates BRCOND 
when the condition is constant. This optimization shouldn't be
necessary, because codegen shouldn't be able to find dead control
paths that the IR-level optimizer can't find. And it's undesirable,
because it encourages bugpoint to leave "br i1 false" branches
in its output. And it wasn't updating the CFG.

I updated all the tests I could, but some tests are too reduced
and I wasn't able to meaningfully preserve them.

llvm-svn: 106748
 2010-06-24 15:04:11 +00:00
Gabor Greif
520f2c6cb9 use ArgOperand API and CallSite for arg range; add necessary casts and perform some cosmetics 
llvm-svn: 106747
 2010-06-24 14:42:01 +00:00
Dan Gohman
a08a9b8a0b Reapply r106634, now that the bug it exposed is fixed. 
llvm-svn: 106746
 2010-06-24 14:30:44 +00:00
Gabor Greif
63d0d93613 use ArgOperand API and CallSite for arg range 
llvm-svn: 106745
 2010-06-24 14:13:36 +00:00
Gabor Greif
55a6d5f8c5 use (even more) ArgOperand API 
llvm-svn: 106744
 2010-06-24 13:54:33 +00:00
Gabor Greif
37ff2f8455 use ArgOperand API 
llvm-svn: 106743
 2010-06-24 13:42:49 +00:00
Gabor Greif
f53212a5a3 use ArgOperand API 
llvm-svn: 106740
 2010-06-24 12:58:35 +00:00