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43664 Commits

Author SHA1 Message Date
Bill Wendling
8ebed2442e Refactor T1sI and T1sIt encodings into helper classes. 
llvm-svn: 120518
 2010-12-01 01:20:15 +00:00
Michael J. Spencer
8d5c96c575 Support/PathV2: Add replace_extension implementation. 
llvm-svn: 120514
 2010-12-01 00:52:55 +00:00
Michael J. Spencer
5ac386d311 Support/PathV2: Add remove_filename implementation. 
llvm-svn: 120513
 2010-12-01 00:52:28 +00:00
Bill Wendling
60d0e1a06c Refactor the T1sIt encodings into a parent class to get rid of all of the "let" 
statements.

llvm-svn: 120512
 2010-12-01 00:48:44 +00:00
Owen Anderson
2299afbb49 Use by-name rather than by-order matching for NEON operands. 
llvm-svn: 120507
 2010-12-01 00:28:25 +00:00
Andrew Trick
a2cec41172 Comment typo. 
llvm-svn: 120504
 2010-11-30 23:59:50 +00:00
Evan Cheng
f7e586d749 Enable sibling call optimization of libcalls which are expanded during 
legalization time. Since at legalization time there is no mapping from
SDNode back to the corresponding LLVM instruction and the return
SDNode is target specific, this requires a target hook to check for
eligibility. Only x86 and ARM support this form of sibcall optimization
right now.
rdar://8707777

llvm-svn: 120501
 2010-11-30 23:55:39 +00:00
Bill Wendling
6a48b15c80 Rename operands to match ARM documentation. No functionality change. 
llvm-svn: 120500
 2010-11-30 23:54:45 +00:00
Jim Grosbach
c8c81941f6 Fix typo. 
llvm-svn: 120499
 2010-11-30 23:51:41 +00:00
Chris Lattner
c888f3ec58 Enhance DSE to handle the variable index case in PR8657. 
llvm-svn: 120498
 2010-11-30 23:43:23 +00:00
Jim Grosbach
ce4e8350aa Trailing whitespace. 
llvm-svn: 120497
 2010-11-30 23:29:24 +00:00
Michael J. Spencer
a10e76dd58 Support/PathV2: Implement reverse iteration and parent_path. 
llvm-svn: 120496
 2010-11-30 23:28:07 +00:00
Michael J. Spencer
090cf77d32 Support/ADT/StringRef: Add find_last_of. 
llvm-svn: 120495
 2010-11-30 23:27:35 +00:00
Jason W Kim
725321c3c7 Thanks to JimG for catching this! 
llvm-svn: 120494
 2010-11-30 23:27:18 +00:00
Andrew Trick
89dd5f7eac Coding style. No significant functionality. Abandon linear scan style 
in favor of the widespread llvm style. Capitalize variables and add
newlines for visual parsing. Rename variables for readability.
And other cleanup.

llvm-svn: 120490
 2010-11-30 23:18:47 +00:00
Bill Wendling
745e2de9dc Inline classes that were used in only one place. 
llvm-svn: 120488
 2010-11-30 23:16:25 +00:00
Chris Lattner
b9c5a6fa04 teach DSE to use GetPointerBaseWithConstantOffset to analyze 
may-aliasing stores that partially overlap with different base
pointers.  This implements PR6043 and the non-variable part of
PR8657

llvm-svn: 120485
 2010-11-30 23:05:20 +00:00
Bill Wendling
e85934f8a5 * Add support for encoding t_addrmode_s2 and t_addrmode_s1. They are the same as 
t_addrmode_s4, but with a different scaling factor.

* Encode the Thumb1 load and store instructions. This involved a bit of
  refactoring (hi, Chris! :-). Some of the patterns became dead afterwards and
  were removed.

llvm-svn: 120482
 2010-11-30 22:57:21 +00:00
Owen Anderson
5aff471eb8 Simplify the encoding of reg+/-imm12 values that allow PC-relative encoding. This allows the 
Thumb2 encoding to share code with the ARM encoding, which gets use fixup support for free.
It also allows us to fold away at least one codegen-only pattern.

llvm-svn: 120481
 2010-11-30 22:45:47 +00:00
Jim Grosbach
09095b4dd9 Fix handling of ARM negative pc-relative fixups for loads and stores. 
llvm-svn: 120480
 2010-11-30 22:40:36 +00:00
Chris Lattner
58b829f94c move GetPointerBaseWithConstantOffset out of GVN into ValueTracking.h 
llvm-svn: 120476
 2010-11-30 22:25:26 +00:00
Chris Lattner
9471d70496 remove a fixed fixme 
llvm-svn: 120474
 2010-11-30 22:18:11 +00:00
Chris Lattner
5f5c9a75cb Make DeleteDeadInstruction be a static function, move some code around. 
llvm-svn: 120471
 2010-11-30 21:58:14 +00:00
Eric Christopher
3a1c712e47 Move X86InstrFPStack.td over to PseudoI as well. 
llvm-svn: 120470
 2010-11-30 21:57:32 +00:00
Chris Lattner
e58643bcd7 switch RemoveAccessedObjects to use AliasAnalysis::Location to simplify 
the code.  We now get accurate sizes on Loads, though it surely doesn't
matter in practice.

llvm-svn: 120469
 2010-11-30 21:47:58 +00:00
Chris Lattner
df852d098f two improvements to RemoveAccessedObjects: 
1. if the underlying pointer passed in can be resolved
   to any argument or alloca, then we don't need to scan.
   Previously we would only avoid the scan if the alloca
   or byval was actually considered dead.
2. The dead store processing code is itself completely
   dead and didn't handle volatile stores right anyway,
   so delete it.  This allows simplifying the interface
   to RemoveAccessedObjects.

llvm-svn: 120467
 2010-11-30 21:38:30 +00:00
Eric Christopher
b15c993a73 Migrate X86InstrControl.td to use PseudoI and fix a couple of 80-col violations 
while I'm in there.

llvm-svn: 120466
 2010-11-30 21:37:36 +00:00
Chris Lattner
c117c05b6e remove the "undead" terminology, which is nonstandard and never 
made sense to me.  We now have a set of dead stack objects, and
they become live when loaded.  Fix a theoretical problem where
we'd pass in the wrong pointer to the alias query.

llvm-svn: 120465
 2010-11-30 21:32:12 +00:00
Chris Lattner
a4503a324b move call handling in handleEndBlock up a bit, and simplify it. 
If the call might read all the allocas, stop scanning early.
Convert a vector to smallvector, shrink SmallPtrSet to 16 instead
of 64 to avoid crazy linear scans.

llvm-svn: 120463
 2010-11-30 21:18:46 +00:00
Dale Johannesen
1ab2213b84 Avoid exponential growth of a table. It feels like 
there should be a better way to do this.  PR 8679.

llvm-svn: 120457
 2010-11-30 20:23:21 +00:00
Owen Anderson
20a6f2bd2e Provide Thumb2 encodings for a few miscellaneous instructions. 
llvm-svn: 120455
 2010-11-30 20:00:01 +00:00
Chris Lattner
ac17f2b483 various cleanups and code simplification 
llvm-svn: 120454
 2010-11-30 19:48:15 +00:00
Chris Lattner
3512297c58 make getPointerSize a static function. Add ivars to DSE for 
AA and MD pass info instead of using getAnalysis<> all over.

llvm-svn: 120453
 2010-11-30 19:34:42 +00:00
Chris Lattner
7ae2f179c6 reduce indentation, clean up TD use a bit. 
llvm-svn: 120452
 2010-11-30 19:28:23 +00:00
Jim Grosbach
532d63789b Add FIXME 
llvm-svn: 120451
 2010-11-30 19:25:56 +00:00
Owen Anderson
5f7b3e919b Add encoding support for Thumb2 PLD and PLI instructions. 
llvm-svn: 120449
 2010-11-30 19:19:31 +00:00
Eric Christopher
95f0d1fe65 Noticed this on inspection, fix and update some comments. 
llvm-svn: 120447
 2010-11-30 19:14:07 +00:00
Chris Lattner
41b6b286a3 enhance isRemovable to refuse to delete volatile mem transfers 
now that DSE hacks on them.  This fixes a regression I introduced,
by generalizing DSE to hack on transfers.

llvm-svn: 120445
 2010-11-30 19:12:10 +00:00
Jim Grosbach
aa96c057be Pseudo-ize ARM MOVPCRX 
llvm-svn: 120442
 2010-11-30 18:56:36 +00:00
Owen Anderson
6581027075 Provide encodings for a few more load/store variants. 
llvm-svn: 120439
 2010-11-30 18:38:28 +00:00
Jim Grosbach
cb8193b99e Pseudo-ize BX_CALL and friends. Remove dead instruction format classes. 
rdar://8685712

llvm-svn: 120438
 2010-11-30 18:30:19 +00:00
Chris Lattner
f541629573 add TLI support indicating that jumps are more expensive than logical operations 
and use this to disable a specific optimization.  Patch by Micah Villmow!

llvm-svn: 120435
 2010-11-30 18:12:52 +00:00
Che-Liang Chiou
f594fe5fc5 ptx: add command-line options for gpu target and ptx version 
llvm-svn: 120423
 2010-11-30 10:14:14 +00:00
Eric Christopher
1a99e7ebdb Fix some grammar in comments I noticed. 
llvm-svn: 120416
 2010-11-30 09:11:54 +00:00
Eric Christopher
d8e045d29e This defaults to GenericDomain. 
llvm-svn: 120415
 2010-11-30 09:11:07 +00:00
Jay Foad
c663d7e4f6 PR5207: Make APInt::set(), APInt::clear() and APInt::flip() return void. 
llvm-svn: 120413
 2010-11-30 09:02:01 +00:00
Eric Christopher
6a21ceab5c Implement a PseudoI class and transfer the sse instructions over to use 
it.

llvm-svn: 120412
 2010-11-30 08:57:23 +00:00
Eric Christopher
73365ae8b6 Fix insertion point in pcmp expander. 
While I'm there, clean up too many \n even for me.

llvm-svn: 120411
 2010-11-30 08:20:21 +00:00
Eric Christopher
2170738538 Fix some cleanups from my last patch. 
llvm-svn: 120410
 2010-11-30 08:10:28 +00:00
Bill Wendling
ae920bcc50 Add parsing for the Thumb t_addrmode_s4 addressing mode. This can almost 
certainly be made more generic. But it does allow us to parse something like:

          ldr     r3, [r2, r4]

correctly in Thumb mode.

llvm-svn: 120408
 2010-11-30 07:44:32 +00:00