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19671 Commits

Author SHA1 Message Date
Chris Lattner 886a41a007 split rewriting of single-store allocas into its own 
method.

llvm-svn: 40806
 2007-08-04 01:47:41 +00:00
Chris Lattner 3cede09c67 refactor some code to shrink PromoteMem2Reg::run a bit 
llvm-svn: 40805
 2007-08-04 01:41:18 +00:00
Chris Lattner d524537fe9 add a typedef, no other change. 
llvm-svn: 40804
 2007-08-04 01:19:38 +00:00
Chris Lattner df138be527 avoid an unneeded vector copy. This speeds up mem2reg on the testcase 
in PR1432 by 6%

llvm-svn: 40803
 2007-08-04 01:07:49 +00:00
Chris Lattner fd838f0770 make RenamePassWorkList a local var instead of an ivar. 
llvm-svn: 40802
 2007-08-04 01:04:40 +00:00
Dale Johannesen b0c7585f2d Make x86 long double alignment 32 for everything but 
Darwin (which makes size within a struct==96)

llvm-svn: 40796
 2007-08-03 22:46:15 +00:00
Dale Johannesen 65c8a9ee9a long double patch 3 of N. Add to MVT. 
llvm-svn: 40793
 2007-08-03 20:51:37 +00:00
Dale Johannesen c5283ecd6f long double patch 2 of N. Handle it in TargetData. 
(I've tried to get the info right for all targets,
but I'm not expert on all of them - check yours.)

llvm-svn: 40792
 2007-08-03 20:20:50 +00:00
Owen Anderson 2d19aae4ca Fix a subtle miscompilation. This allows 197.parser to be compiled correctly. 
llvm-svn: 40791
 2007-08-03 19:59:35 +00:00
Owen Anderson 774761c503 Fix a subtle iterator invalidation bug in a recursive algorithm. 
llvm-svn: 40776
 2007-08-03 11:03:26 +00:00
Dale Johannesen ff4c3be741 Long double, part 1 of N. Support in IR. 
llvm-svn: 40774
 2007-08-03 01:03:46 +00:00
Chris Lattner 99fbf13dc3 add an observation 
llvm-svn: 40772
 2007-08-03 00:17:42 +00:00
Chris Lattner 1f70816c73 Fix an accidental commit. 
llvm-svn: 40758
 2007-08-02 21:33:36 +00:00
Dan Gohman 5f6a9da530 More explicit keywords. 
llvm-svn: 40757
 2007-08-02 21:21:54 +00:00
Dan Gohman 8932bff7fe Fix the alignment requirements of several unpck and shuf instructions. 
Generalize isPSHUFDMask and add a unary SHUFPD pattern so that SHUFPD's
memory operand alignment can be tested as well, with a fix to avoid
breaking MMX's use of isPSHUFDMask.

llvm-svn: 40756
 2007-08-02 21:17:01 +00:00
Dan Gohman 4d436e2b7d Fix pastos in vector arithmetic intrinsics. 
llvm-svn: 40754
 2007-08-02 21:06:40 +00:00
Owen Anderson a8ba659976 Fix 80 col. violations. 
llvm-svn: 40751
 2007-08-02 18:20:52 +00:00
Owen Anderson 9699a6ea03 Fix 80 col. violations. 
llvm-svn: 40750
 2007-08-02 18:16:06 +00:00
Owen Anderson e3590584b9 Fix 80 col. violations. 
llvm-svn: 40749
 2007-08-02 18:11:11 +00:00
Chris Lattner 3ffe7187db don't redefine a parameter 
llvm-svn: 40748
 2007-08-02 18:08:16 +00:00
Owen Anderson 0ac1fc8ac1 Fix a bug that was causing several miscompilations on SPEC. 
llvm-svn: 40746
 2007-08-02 17:56:05 +00:00
Christopher Lamb 531f260ac0 Implement review feedback. 
llvm-svn: 40745
 2007-08-02 17:52:00 +00:00
Chris Lattner dc2cf228ce Replacing a cast with another one does not reduce the number of 
casts in the input.

llvm-svn: 40741
 2007-08-02 17:23:38 +00:00
Chris Lattner 222b214be7 Disable an xform that causes an infinite loop. This fixes PR1594 
llvm-svn: 40739
 2007-08-02 16:56:32 +00:00
Chris Lattner 2740694450 wrap some long lines. Major offenders that are left include 
gvn, gvnpre, dse, and predsimplify.  To see these, use:

  make check-line-length

llvm-svn: 40738
 2007-08-02 16:53:43 +00:00
Devang Patel a882328e61 Update dominator info for the middle blocks created while spliting 
exit edge to preserve LCSSA.

Fix dominance frontier update during loop unswitch. This fixes PR 1589, again

llvm-svn: 40737
 2007-08-02 15:25:57 +00:00
Dan Gohman fa3eeeedc0 Mark the SSE and MMX load instructions that 
X86InstrInfo::isReallyTriviallyReMaterializable knows how to handle
with the isReMaterializable flag so that it is given a chance to handle
them. Without hoisting constant-pool loads from loops this isn't very
visible, though it does keep CodeGen/X86/constant-pool-remat-0.ll from
making a copy of the constant pool on the stack.

llvm-svn: 40736
 2007-08-02 14:27:55 +00:00
Chris Lattner b0418fc607 Enhance instcombine to be more aggressive about folding casts of 
operations of casts.  This implements InstCombine/zext-fold.ll

llvm-svn: 40726
 2007-08-02 06:11:14 +00:00
Evan Cheng 473c5111c3 Switch some multiplication instructions over to the new scheme for testing. 
llvm-svn: 40723
 2007-08-02 05:48:35 +00:00
Evan Cheng 358c3d1dac Do not emit copies for physical register output if it's not used. 
llvm-svn: 40722
 2007-08-02 05:29:38 +00:00
Chris Lattner d7cb625a9e Fix PR1575 and test/Transforms/CondProp/2007-08-01-InvalidRead.ll 
llvm-svn: 40720
 2007-08-02 04:47:05 +00:00
Scott Michel 5b80ecbcf5 Style police: Expand the tabs to spaces! 
llvm-svn: 40712
 2007-08-02 02:22:46 +00:00
Christopher Lamb 1a80201426 Teach BasicAA about noalias parameter attributes, but do it correctly this time. 
llvm-svn: 40711
 2007-08-02 01:18:14 +00:00
Evan Cheng c5549fc3a0 Instead of adding copyfromreg's to handle physical definitions. Now isel can 
simply specify them as results and let scheduledag handle them. That
is, instead of
SDOperand Flag = DAG.getTargetNode(Opc, MVT::i32, MVT::Flag, ...)
SDOperand Result = DAG.getCopyFromReg(Chain, X86::EAX, MVT::i32, Flag)

Just write:
SDOperand Result = DAG.getTargetNode(Opc, MVT::i32, MVT::i32, ...)

And let scheduledag emit the move from X86::EAX to a virtual register.

llvm-svn: 40710
 2007-08-02 00:28:15 +00:00
Evan Cheng d3d92890fc Can't handle offset and scale if rip-relative addressing is to be used. 
llvm-svn: 40703
 2007-08-01 23:46:47 +00:00
Evan Cheng 9a3b2b09ad Mac OS X X86-64 low 4G address not available. 
llvm-svn: 40702
 2007-08-01 23:46:10 +00:00
Evan Cheng 763cdfd371 Mac OS X X86-64 low 4G address not available. 
llvm-svn: 40701
 2007-08-01 23:45:51 +00:00
Devang Patel 34890b2f27 Undo previous check-in. 
llvm-svn: 40698
 2007-08-01 23:24:50 +00:00
Evan Cheng 58c3c30921 Some out operands were incorrectly specified as input operands. 
llvm-svn: 40697
 2007-08-01 23:07:38 +00:00
Devang Patel 561b0c29a3 Update dominator info for the middle blocks created while spliting 
exit edge to preserve LCSSA.

Fix dominance frontier update during loop unswitch. This fixes PR 1589.

llvm-svn: 40695
 2007-08-01 22:23:50 +00:00
Owen Anderson c321e5e272 Make non-local memdep not be recursive, and fix a bug on 403.gcc that this exposed. 
llvm-svn: 40692
 2007-08-01 22:01:54 +00:00
Evan Cheng da549ece5c Missing Requires. 
llvm-svn: 40691
 2007-08-01 21:42:24 +00:00
Evan Cheng 6f2ce6b842 Be more precise. 
llvm-svn: 40689
 2007-08-01 20:22:37 +00:00
Evan Cheng d8ded48468 Bugs: missing partial uses and redundant partial defs. 
llvm-svn: 40688
 2007-08-01 20:18:21 +00:00
Lauro Ramos Venancio 0db4418a5f Expand unaligned loads/stores when the target doesn't support them. (PR1548) 
llvm-svn: 40682
 2007-08-01 19:34:21 +00:00
Dan Gohman 34d442f274 More explicit keywords. 
llvm-svn: 40673
 2007-08-01 15:32:29 +00:00
Dan Gohman d541c831c3 Change a .size directive to use a tab instead of a space, for consistency. 
llvm-svn: 40672
 2007-08-01 14:42:30 +00:00
Owen Anderson 10e52eddb3 Rename FastDSE to just DSE. 
llvm-svn: 40668
 2007-08-01 06:36:51 +00:00
Owen Anderson e4a374812b Move FastDSE in to DeadStoreElimination. 
llvm-svn: 40667
 2007-08-01 06:30:51 +00:00
Owen Anderson 4894e6d8bc Remove old DSE. 
llvm-svn: 40666
 2007-08-01 06:30:10 +00:00
David Greene c8e6508572 Update generated files. 
llvm-svn: 40663
 2007-08-01 03:59:32 +00:00
David Greene 17a5dfe6f7 New CallInst interface to address GLIBCXX_DEBUG errors caused by 
indexing an empty std::vector.

Updates to all clients.

llvm-svn: 40660
 2007-08-01 03:43:44 +00:00
Evan Cheng aa39b39eec Indexed loads each has 2 outputs. 
llvm-svn: 40658
 2007-08-01 00:12:08 +00:00
Owen Anderson 10ffa860d8 Don't let the memory allocator outsmart GVN. ;-) 
llvm-svn: 40655
 2007-07-31 23:27:13 +00:00
Evan Cheng e02b2d7e69 simpleregistercoalescing -> regcoalescing. It's too long for me to handle. 
llvm-svn: 40654
 2007-07-31 22:37:44 +00:00
Owen Anderson 2464f4f048 Fix a failure I accidentally caused in my last commit by mishandling the 
removal of redundant phis.

llvm-svn: 40650
 2007-07-31 20:18:28 +00:00
Lauro Ramos Venancio 549e775e67 Fix a bug in GetKnownAlignment of packed structs. 
llvm-svn: 40649
 2007-07-31 20:13:21 +00:00
Dan Gohman 54ec4bfa5f Change the x86 assembly output to use tab characters to separate the 
mnemonics from their operands instead of single spaces. This makes the
assembly output a little more consistent with various other compilers
(f.e. GCC), and slightly easier to read. Also, update the regression
tests accordingly.

llvm-svn: 40648
 2007-07-31 20:11:57 +00:00
David Greene 87801e8773 Fix GLIBCXX_DEBUG error owing to dereference of end iterator. There's 
no guarantee that an instruction returned by getDependency exists in
the maps.

llvm-svn: 40647
 2007-07-31 20:01:27 +00:00
Owen Anderson d58fa6b09f Fix a misoptimization in aha. 
llvm-svn: 40642
 2007-07-31 17:43:14 +00:00
Dan Gohman 8c4da37b1f Use SCEVExpander::InsertCastOfTo instead of calling new IntToPtrInst 
directly, because the insert point used by the SCEVExpander may vary
from what LSR originally computes.

llvm-svn: 40641
 2007-07-31 17:22:27 +00:00
Devang Patel d8b1ceb5b4 Add note. 
llvm-svn: 40638
 2007-07-31 16:52:25 +00:00
Christopher Lamb 283152404d Revert overly aggressive interpretation of noalias 
llvm-svn: 40635
 2007-07-31 16:18:07 +00:00
Reid Spencer 41aa656635 Regenerate. 
llvm-svn: 40634
 2007-07-31 14:41:17 +00:00
Reid Spencer b6508349a7 After a discussion with Anton, it turns out that the InReg attribute is not 
permitted on function results. So, revert the last patch to make it illegal.

llvm-svn: 40632
 2007-07-31 14:39:10 +00:00
Evan Cheng 12c6be84ff Redo and generalize previously removed opt for pinsrw: (vextract (v4i32 bc (v4f32 s2v (f32 load ))), 0) -> (i32 load ) 
llvm-svn: 40628
 2007-07-31 08:04:03 +00:00
Devang Patel d491198000 Loop unswitch preserves dom info. 
Use simple analysis interface to preserve analysis info maintained by other loop passes.

llvm-svn: 40627
 2007-07-31 08:03:26 +00:00
Devang Patel b98a097ae9 Implement Simple Analysis interfaces - cloneBasicBlockAnalysis and deleteAnalysisValue. 
llvm-svn: 40626
 2007-07-31 08:01:41 +00:00
Devang Patel cc2b233b62 Introduce Simple Analysis interface for loop passes. 
Right now, this interface provides hooks for only to operations, 1) clone basic block 2) delete value.

llvm-svn: 40625
 2007-07-31 08:00:57 +00:00
Christopher Lamb b08423b36e Teach BasicAA about noalias function parameters. Passes all of DejaGNU and test-suite. 
llvm-svn: 40624
 2007-07-31 07:04:51 +00:00
Reid Spencer 861245172c Regenerate. 
llvm-svn: 40621
 2007-07-31 06:37:43 +00:00
Reid Spencer 4f178405ad Allow the INREG parameter attribute to be added to functions. This permits the 
function result to be passed in a register. This implements the GCC regparm
function attribute for llvm by translation to the InReg parameter attribute 
and fixes test/CFrontend/2002-07-30-SubregSetAssertion.c

llvm-svn: 40619
 2007-07-31 06:37:27 +00:00
Reid Spencer 160e4faedc The InReg parameter attribute is valid on function results. The llvm-gcc-4.0 
front end converts regparm attribute on the gcc function into InReg attribute 
on the llvm function. This fixes test/CFrontend/2002-07-30-SubrefSetAssertion.c

llvm-svn: 40618
 2007-07-31 06:33:37 +00:00
Evan Cheng 242a87734a This isn't safe when there are uses of load's chain result. 
llvm-svn: 40617
 2007-07-31 06:21:44 +00:00
Chris Lattner 364439eb15 Fix PR1581, patch by Timo Savola 
llvm-svn: 40616
 2007-07-31 06:00:51 +00:00
Reid Spencer 66eb88bf48 Regenerate (again). 
llvm-svn: 40613
 2007-07-31 03:55:56 +00:00
Reid Spencer 36ded45e5d Don't include newlines in the whitespace before newline (WSNL) rule. 
Fix the comment for WSNL to describe its actual function.

llvm-svn: 40612
 2007-07-31 03:55:43 +00:00
Reid Spencer 22910a08a0 Regenerate. 
llvm-svn: 40611
 2007-07-31 03:50:36 +00:00
Reid Spencer d45d07ac72 For PR1553: 
Make the AsmParser auto-upgrade the old zext and sext
keywords for parameter attributes and handle the 
end-of-line ambiguity.

llvm-svn: 40610
 2007-07-31 02:57:37 +00:00
Devang Patel 7d165e1d84 If loop can be unswitched again, then do it yourself. 
llvm-svn: 40609
 2007-07-30 23:07:10 +00:00
Anton Korobeynikov 187bf73b5d Add a comment: don't expect from external function resolver in interpreter 
things, it wasn't designed to handle.

llvm-svn: 40608
 2007-07-30 23:03:25 +00:00
Owen Anderson 850138157e Avoid potential iterator invalidation problems. 
llvm-svn: 40607
 2007-07-30 21:26:39 +00:00
Devang Patel 14fae50666 Remove dead code. 
llvm-svn: 40606
 2007-07-30 21:10:44 +00:00
Scott Michel 34e2d22d63 - Allow custom lowering for CTPOP, CTTZ, CTLZ. 
- Fixed an existing unexpanded tab.

llvm-svn: 40605
 2007-07-30 21:00:31 +00:00
Devang Patel c5e340eded LCSSA preserves dom info. 
llvm-svn: 40604
 2007-07-30 20:23:45 +00:00
Devang Patel 698852561c Loop Rotation pass preserves dominator tree and frontier. 
llvm-svn: 40603
 2007-07-30 20:22:53 +00:00
Devang Patel bb97ac4dce LICM preserves scalar evolution and dom frontier. 
llvm-svn: 40602
 2007-07-30 20:19:59 +00:00
Anton Korobeynikov 7ac2521021 Add detection of __dso_handle presence during configure. Use this information in the 
JITer (short path is added for darwin). This is needed to properly JIT llvm-gcc-4.2-built
binaries, since cxa_atexit is enabled by default on much more targets.

llvm-svn: 40600
 2007-07-30 20:02:02 +00:00
Reid Spencer dff9d69cfb Fix a typo/thinko. 
llvm-svn: 40599
 2007-07-30 19:53:57 +00:00
Dan Gohman 4ff9fb14f6 Fix a bug in getCopyFromParts turned up in the testcase for PR1132. 
llvm-svn: 40598
 2007-07-30 19:09:17 +00:00
Owen Anderson 212d5c27f6 Use more caching when computing non-local dependence. This makes bzip2 not 
use up the entire 32-bit address space.

llvm-svn: 40596
 2007-07-30 17:29:24 +00:00
Owen Anderson d66e285b2e Fix a bug caused by indiscriminantly asking for the dominators of a predecessor. 
llvm-svn: 40595
 2007-07-30 16:57:08 +00:00
Dan Gohman 204dece054 Use tabs more consistently in assembler pseudo-ops. 
llvm-svn: 40594
 2007-07-30 15:08:02 +00:00
Dan Gohman 33d0ea2597 Print a space between the comment character and the basic block name, 
for prettiness.

llvm-svn: 40593
 2007-07-30 15:06:25 +00:00
Dan Gohman 55360dacd4 Fix the comment for getClosestTargetForJIT to reflect the fact that 
it does not have a Module parameter.

llvm-svn: 40590
 2007-07-30 14:58:59 +00:00
Dan Gohman e379f08b19 More explicit keywords. 
llvm-svn: 40589
 2007-07-30 14:51:59 +00:00
Dan Gohman e6656eb4ad Fix pastos in comments for doFinalization functions. 
llvm-svn: 40588
 2007-07-30 14:51:13 +00:00
Evan Cheng 581d2795dc Vector fneg must be expanded into fsub -0.0, X. 
llvm-svn: 40586
 2007-07-30 07:51:22 +00:00
Christopher Lamb 5fecb80efa Change the x86 backend to use extract_subreg for truncation operations. Passes DejaGnu, SingleSource and MultiSource. 
llvm-svn: 40578
 2007-07-29 01:24:57 +00:00
Christopher Lamb ac3a364c51 Add register info needed to use subreg sets on X86. 
llvm-svn: 40572
 2007-07-28 19:03:30 +00:00