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12176 Commits

Author SHA1 Message Date
Bob Wilson
fc1194919b Revert r85346 change to control tail merging by CodeGenOpt::Level. 
I'm going to redo this using the OptimizeForSize function attribute.

llvm-svn: 85426
 2009-10-28 20:46:46 +00:00
Bob Wilson
af37728221 Add a Thumb BRIND pattern. Change the ARM BRIND assembly to separate the 
opcode and operand with a tab.  Check for these instructions in the usual
places.

llvm-svn: 85411
 2009-10-28 18:26:41 +00:00
Evan Cheng
519b231883 fconsts and fconstd are obviously re-materializable. 
llvm-svn: 85410
 2009-10-28 18:19:56 +00:00
Jim Grosbach
e42dc83a9f Cleanup now that frame index scavenging via post-pass is working for ARM and Thumb2. 
llvm-svn: 85406
 2009-10-28 17:33:28 +00:00
Evan Cheng
16ed5ac7ff Give ARMISD::EH_SJLJ_LONGJMP and EH_SJLJ_SETJMP names. 
llvm-svn: 85381
 2009-10-28 06:55:03 +00:00
Evan Cheng
5935e48b96 X86 palignr intrinsics immediate field is in bits. ISel must transform it into bytes. 
llvm-svn: 85379
 2009-10-28 06:30:34 +00:00
Chris Lattner
f605b2e8f9 Previously, all operands to Constant were themselves constant. 
In the new world order, BlockAddress can have a BasicBlock operand.
This doesn't permute much, because if you have a ConstantExpr (or
anything more specific than Constant) we still know the operand has
to be a Constant.

llvm-svn: 85375
 2009-10-28 05:14:34 +00:00
Evan Cheng
1babe43881 Use fconsts and fconstd to materialize small fp constants. 
llvm-svn: 85362
 2009-10-28 01:44:26 +00:00
Evan Cheng
4e3bc5efb7 Add a second ValueType argument to isFPImmLegal. 
llvm-svn: 85361
 2009-10-28 01:43:28 +00:00
Dan Gohman
b20fae567f Update SystemZ to use PSW following the way x86 uses EFLAGS. Besides 
eliminating a use of MVT::Flag, this is needed for an upcoming CodeGen
change.

This unfortunately requires SystemZ to switch to the list-burr
scheduler, in order to handle the physreg defs properly, however
that's what LLVM has available at this time.

llvm-svn: 85357
 2009-10-28 00:55:57 +00:00
Bob Wilson
b709aa6b3c Add an indirect branch pattern for ARM. Testcase will be coming soon. 
llvm-svn: 85355
 2009-10-28 00:37:03 +00:00
Chris Lattner
2bc8002f4c rename indbr -> indirectbr to appease the residents of #llvm. 
llvm-svn: 85351
 2009-10-28 00:19:10 +00:00
Bob Wilson
98c9fb94ab Record CodeGen optimization level in the BranchFolding pass so that we can 
use it to control tail merging when there is a tradeoff between performance
and code size.  When there is only 1 instruction in the common tail, we have
been merging.  That can be good for code size but is a definite loss for
performance.  Now we will avoid tail merging in that case when the
optimization level is "Aggressive", i.e., "-O3".  Radar 7338114.

Since the IfConversion pass invokes BranchFolding, it too needs to know
the optimization level.  Note that I removed the RegisterPass instantiation
for IfConversion because it required a default constructor.  If someone
wants to keep that for some reason, we can add a default constructor with
a hard-wired optimization level.

llvm-svn: 85346
 2009-10-27 23:49:38 +00:00
Bill Wendling
8f96a88125 Add new note. 
llvm-svn: 85341
 2009-10-27 23:30:07 +00:00
Jim Grosbach
7c0566a5cc Enable virtual register based frame index scavenging by default for ARM & T2. 
llvm-svn: 85335
 2009-10-27 22:52:29 +00:00
Bill Wendling
cb9a2f20d5 Move and clarify note. 
llvm-svn: 85334
 2009-10-27 22:48:31 +00:00
Jim Grosbach
a6946f0f50 Infrastructure for dynamic stack realignment on ARM. For now, this is off by 
default behind a command line option. This will enable better performance for
vectors on NEON enabled processors.

llvm-svn: 85333
 2009-10-27 22:45:39 +00:00
Bill Wendling
2aaf2ae6e1 Note corrected. 
llvm-svn: 85332
 2009-10-27 22:43:24 +00:00
Bill Wendling
3e4dd02a1e Modify note. 
llvm-svn: 85331
 2009-10-27 22:40:45 +00:00
Bill Wendling
3edf1d3854 Add a note. 
llvm-svn: 85329
 2009-10-27 22:34:43 +00:00
Chris Lattner
34c90ce60d cppbackend support for indbr 
llvm-svn: 85312
 2009-10-27 21:24:48 +00:00
Chris Lattner
f21034d6c3 CBE support for indbr. 
llvm-svn: 85311
 2009-10-27 21:21:06 +00:00
Johnny Chen
b746e248cd Similar to r85280, do not clear the "S" bit for RSBri and RSBrs. 
llvm-svn: 85299
 2009-10-27 20:51:49 +00:00
Johnny Chen
d63b06e0f6 Set condition code bits of BL and BLr9 to 0b1110 (ALways) to distinguish between 
BL_pred and BLr9_pred.

llvm-svn: 85297
 2009-10-27 20:45:15 +00:00
Evan Cheng
151726ad30 Do away with addLegalFPImmediate. Add a target hook isFPImmLegal which returns true if the fp immediate can be natively codegened by target. 
llvm-svn: 85281
 2009-10-27 19:56:55 +00:00
Bob Wilson
5ca76e601f Do not clear the "S" bit for RSCri and RSCrs. They inherit from the "sI" 
instruction format that already takes care of setting this.

llvm-svn: 85280
 2009-10-27 19:52:03 +00:00
Johnny Chen
528c66b30c Explicitly specify 0b00, i.e, zero rotation, as the rotate filed (Inst{11-10}) 
for the r/rr fragment of the multiclass AI_unary_rrot/AI_bin_rrot.

llvm-svn: 85271
 2009-10-27 18:44:24 +00:00
Sanjiv Gupta
c690360ed5 Remove unnecessary gotos to fall-thru successors. 
llvm-svn: 85257
 2009-10-27 17:40:24 +00:00
Johnny Chen
37851c95e8 Test commit. Added '.' to the comment line. 
llvm-svn: 85255
 2009-10-27 17:25:15 +00:00
Chris Lattner
5596e0eb77 apparently the X86 JIT isn't fully contextized, it is still using getGlobalContext() :( 
llvm-svn: 85252
 2009-10-27 17:01:03 +00:00
Rafael Espindola
7eb2a8fb0b Correctly align double arguments in the stack. 
llvm-svn: 85235
 2009-10-27 14:09:44 +00:00
Evan Cheng
032eef9720 Now VFP instructions. 
llvm-svn: 85186
 2009-10-27 00:20:49 +00:00
Evan Cheng
f30e5556ba Change Thumb1 and Thumb2 instructions to separate opcode from operands with a tab instead of a space. 
llvm-svn: 85184
 2009-10-27 00:08:59 +00:00
Evan Cheng
a883c2ebb7 Change ARM asm strings to separate opcode from operands with a tab instead of a space. 
llvm-svn: 85178
 2009-10-26 23:45:59 +00:00
Victor Hernandez
673c036bc7 Remove FreeInst. 
Remove LowerAllocations pass.
Update some more passes to treate free calls just like they were treating FreeInst.

llvm-svn: 85176
 2009-10-26 23:43:48 +00:00
Bob Wilson
5a870f848e Try to get ahead of Johnny Chen and pro-actively add some more ARM encoding 
bits.  Johnny, please review -- I do not have a good track record of getting
these right.

llvm-svn: 85173
 2009-10-26 22:59:12 +00:00
Bob Wilson
ace97183c7 Fix ARM encoding typo: Opcod3 is not passed to ASuI parent class. 
Patch by Johnny Chen.

llvm-svn: 85169
 2009-10-26 22:42:13 +00:00
Bob Wilson
32ee4ee163 Add more ARM instruction encodings for 's' bit set and "rs" register encoding 
bits.  Patch by Johnny Chen.

llvm-svn: 85167
 2009-10-26 22:34:44 +00:00
Ted Kremenek
acb9fe806e Update CMake files. 
llvm-svn: 85161
 2009-10-26 22:06:01 +00:00
Anton Korobeynikov
4f40949874 Revert r85134, it breaks mingw build 
llvm-svn: 85138
 2009-10-26 18:40:24 +00:00
Sanjiv Gupta
7ea628e8db Make PIC16 overlay a loadable pass. 
llvm-svn: 85134
 2009-10-26 18:22:59 +00:00
David Goodwin
f6199e95b0 Break anti-dependence breaking out into its own class. 
llvm-svn: 85127
 2009-10-26 16:59:04 +00:00
Chandler Carruth
766362c707 Move DataTypes.h to include/llvm/System, update all users. This breaks the last 
direct inclusion edge from System to Support.

llvm-svn: 85086
 2009-10-26 01:35:46 +00:00
Jim Grosbach
eae0e509c0 of -> or 
llvm-svn: 85065
 2009-10-25 19:14:48 +00:00
Jim Grosbach
29b842a6c1 80-column cleanup 
llvm-svn: 85064
 2009-10-25 18:55:46 +00:00
Sanjiv Gupta
18574b11b0 Reapply 85006 with a minor fix. 
llvm-svn: 85052
 2009-10-25 08:14:11 +00:00
Evan Cheng
d748ce45ab Add ARM getMatchingSuperRegClass to handle S / D / Q cross regclass coalescing. 
llvm-svn: 85049
 2009-10-25 07:53:28 +00:00
Evan Cheng
77ecc0adc5 Don't forget subreg indices when folding load / store. 
llvm-svn: 85048
 2009-10-25 07:52:27 +00:00
Nick Lewycky
2b8400628d Remove includes of Support/Compiler.h that are no longer needed after the 
VISIBILITY_HIDDEN removal.

llvm-svn: 85043
 2009-10-25 06:57:41 +00:00
Nick Lewycky
711c726c97 Remove VISIBILITY_HIDDEN from class/struct found inside anonymous namespaces. 
Chris claims we should never have visibility_hidden inside any .cpp file but
that's still not true even after this commit.

llvm-svn: 85042
 2009-10-25 06:33:48 +00:00