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19340 Commits

Author SHA1 Message Date
Devang Patel
558f1b8439 If a condition is not inside a loop then the condition is suitable 
to loop unswitch candidate for the loop.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37770 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-28 00:44:10 +00:00
Owen Anderson
a20f35d2e7 Make many sets a much more reasonable size. This decreases the time to optimize 
Anton's testcase from 35.5s to 34.7s.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37769 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-28 00:34:34 +00:00
Bill Wendling
1a636de33b Set implied features based upon the CPU's feature list. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37768 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 23:34:06 +00:00
Devang Patel
1ceda1d63e Remove ETForest. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37765 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 20:53:52 +00:00
Evan Cheng
292da949f6 If a livein is not used in the block. It's live through. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37764 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 18:47:28 +00:00
Evan Cheng
e47c333a12 Partial fix for PR1502: If a EH register is needed in a successor of landing pad, add it as livein to all the blocks in the paths between the landing pad and the specified block. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37763 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 18:45:32 +00:00
Owen Anderson
68cb52e468 Use cached information that has already been computed to make clean() simpler and faster. This is a small speedup on most cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37761 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 17:38:29 +00:00
Owen Anderson
7b317d2f59 Fold a lot of code into two cases: binary instructions and ternary instructions. 
This saves many lines of code duplication.  No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37759 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 17:03:03 +00:00
Dan Gohman
6595cb3000 Rename ("shrinkify") MVT::isExtendedValueType to MVT::isExtendedVT. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37758 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 16:08:04 +00:00
Dan Gohman
6445f61806 Remove a redundant newline in the asm output for ELF .rodata sections. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37756 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 15:09:47 +00:00
Dan Gohman
8c8c5fcbd7 Use getVectorTypeBreakdown in FunctionLoweringInfo::CreateRegForValue 
to compute the number and type of registers needed for vector values
instead of computing it manually. This fixes PR1529.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37755 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 14:34:07 +00:00
Dan Gohman
89b20c07e9 Make the comment for ScalarizeVectorOp mention that it is only for use 
with single-element vectors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37752 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 14:06:22 +00:00
Zhou Sheng
0d7d3656f3 Fix a bug. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37751 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 09:50:26 +00:00
Duraid Madina
df82c93f2a ok, this is something of a dirty hack, but it seems to work. (fixes e.g. 
the SPASS miscompilation)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37750 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 09:01:14 +00:00
Duraid Madina
b2efabd571 ok, this much doesn't seem to bork anything 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37749 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 08:31:07 +00:00
Duraid Madina
4e378c6504 revert evan's fixes (and my doofusness) since they had a huge code 
quality hit. will look at this soon.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37748 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 08:11:59 +00:00
Duraid Madina
669f7382be pull evan's fixes - should help the nightly tester (but there are still 
some issues)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37747 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 07:07:13 +00:00
Evan Cheng
041040717d Replace std::set with SmallPtrSet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37746 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 05:23:00 +00:00
Owen Anderson
62cf8babdb Add support for performing GVNPRE on the three vector-specific operations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37745 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 04:10:46 +00:00
Evan Cheng
75611fb4e6 Fix an obvious bug. Old code only worked for the entry block. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37743 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-27 01:16:36 +00:00
Owen Anderson
6032a5ba64 1. Correct some comments and clean up some dead code. 
2. When calculating ANTIC_IN, only iterate the changed blocks.  For most average
inputs this is a small speedup, but for cases with unusual CFGs, this can be a significant win.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37742 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-26 23:29:41 +00:00
Evan Cheng
7ac19afbb1 Correctly handle implcit def / use operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37740 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-26 21:05:13 +00:00
Evan Cheng
4efe74129f Properly handle kills of a physical register which has sub-registers that are read by later instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37739 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-26 21:03:35 +00:00
Evan Cheng
e2446c6076 Silence a warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37737 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-26 18:31:22 +00:00
Dan Gohman
acaf32e236 Use utostr from StringExtras.h instead of ostringstream from <sstream>. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37731 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-26 15:14:48 +00:00
Dan Gohman
d45eddd214 Revert the earlier change that removed the M_REMATERIALIZABLE machine 
instruction flag, and use the flag along with a virtual member function
hook for targets to override if there are instructions that are only
trivially rematerializable with specific operands (i.e. constant pool
loads).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37728 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-26 00:48:07 +00:00
Duraid Madina
837a600a90 tidy this file up a bit 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37725 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-26 00:21:58 +00:00
Duraid Madina
2e0930cf37 A bunch of fixes to the BigBlock allocator improve compile-time by ~20% 
and code quality by ~2% on my tests.

A big thank you to Roman Levenstein for this patch! See
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070618/050717.html
for more details.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37724 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-25 23:46:54 +00:00
Chris Lattner
ba6801e6e7 fix Transforms/Inline/2007-06-25-WeakInline.ll by not inlining functions 
with weak linkage.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37723 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-25 21:50:09 +00:00
Owen Anderson
9030d384c4 Use the built-in postorder iterators rather than computing a postorder walk by hand. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37721 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-25 18:25:31 +00:00
Dan Gohman
7f32156bb9 Generalize MVT::ValueType and associated functions to be able to represent 
extended vector types. Remove the special SDNode opcodes used for pre-legalize
vector operations, and the special MVT::Vector type used with them. Adjust
lowering and legalize to work with the normal SDNode kinds instead, and to
use the normal MVT functions to work with vector types instead of using the
two special operands that the pre-legalize nodes held.

This allows pre-legalize and post-legalize DAGs, and the code that operates
on them, to be more consistent. Pre-legalize vector operators can be handled
more consistently with scalar operators. And, -view-dag-combine1-dags and
-view-legalize-dags now look prettier for vector code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37719 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-25 16:23:39 +00:00
Dan Gohman
32791e06d8 Make minor adjustments to whitespace and comments to reduce differences 
between SSE1 instructions and their respective SSE2 analogues.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37718 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-25 15:44:19 +00:00
Dan Gohman
01976307d2 Fix loadv2i32 to be loadv4i32, though it isn't actually used anywhere yet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37717 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-25 15:19:03 +00:00
Dan Gohman
8bc49c2fe7 Say AT&T instead of Intel in the comments for AT&T support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37716 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-25 15:11:25 +00:00
Anton Korobeynikov
5248896635 Provide hook for alloca on VCPP. Patch by Scott Graham 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37715 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-25 07:12:14 +00:00
Owen Anderson
f62c44a38d 1) Fix an issue with non-deterministic iteration order in phi_translate 
2) Remove some maximal-set computing code that is no longer used.
3) Use a post-order CFG traversal to compute ANTIC_IN instead of a postdom traversal.
This causes the ANTIC_IN calculation to converge much faster.  Thanks to Daniel Berlin for suggesting this.

With this patch, the time to optimize 403.gcc decreased from 17.5s to 7.5s, and Anton's huge
testcase decreased from 62 minutes to 38 seconds.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37714 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-25 05:41:12 +00:00
Nick Lewycky
4390feb7ae Fix value ranges. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37713 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-24 20:14:22 +00:00
Owen Anderson
79a6370133 Fix a silly mistake that was causing failures. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37712 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-24 08:42:24 +00:00
Nick Lewycky
dea252689d Remove tabs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37710 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-24 04:40:16 +00:00
Nick Lewycky
984504b912 Remove use of ETForest. Also cleaned up issues around unreachable basic 
blocks, and optimizing within one basic block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37709 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-24 04:36:20 +00:00
Owen Anderson
647580483c Rework topo_sort so eliminate some behavior that scaled terribly. This reduces the time to optimize 403.gcc from 18.2s to 17.5s, 
and has an even larger effect on larger testcases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37708 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-22 21:31:16 +00:00
Owen Anderson
2106f61f23 Perform fewer set insertions while calculating ANTIC_IN. This reduces the amount of time to optimize 403.gcc from 21.9s to 18.2s. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37707 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-22 18:27:04 +00:00
Owen Anderson
b3b37345de Remove some code that I was using for collecting performance information that should not have been committed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37706 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-22 17:04:40 +00:00
Owen Anderson
0819a9d386 Fix the build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37705 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-22 16:59:54 +00:00
Dan Gohman
ea859be53c Move ComputeMaskedBits, MaskedValueIsZero, and ComputeNumSignBits from 
TargetLowering to SelectionDAG so that they have more convenient
access to the current DAG, in preparation for the ValueType routines
being changed from standalone functions to members of SelectionDAG for
the pre-legalize vector type changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37704 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-22 14:59:07 +00:00
Duraid Madina
a8c7682939 check in the BigBlock local register allocator 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37703 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-22 08:27:12 +00:00
Owen Anderson
124084604d Avoid excessive calls to find_leader when calculating AVAIL_OUT. This reduces the time to optimize 403.gcc from 23.5s to 21.9s. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37702 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-22 03:14:03 +00:00
Evan Cheng
0b2ce1fc19 std::set is really really terrible. Switch to SmallPtrSet to reduce compile time. For Duraid's example. The overall isel time is reduced from 0.6255 sec to 0.1876 sec. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37701 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-22 01:35:51 +00:00
Dale Johannesen
5411835165 Quote complex names for Darwin X86 and ARM. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37700 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-22 00:54:56 +00:00
Owen Anderson
e8138ffeaf Reserve space in vectors before topologically sorting into them. This improves the time to optimize 403.gcc from 28s to 23.5s. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37699 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-22 00:43:22 +00:00
Owen Anderson
82575d8ab1 Make a bunch of optimizations for compile time to GVNPRE, including smarter set unions, deferring blocks rather than computing maximal sets, and smarter use of sets. With these enhancements, the time to optimize 273.perlbmk goes from 5.3s to 2.7s. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37698 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-22 00:20:30 +00:00
Owen Anderson
6394e5e4fd Fix a bug in SmallPtrSet that was causing GVNPRE to enter an infinite loop. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37697 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-22 00:11:18 +00:00
Chris Lattner
61766cae0b Two changes: 
1. Make SmallPtrSet::erase faster in the small case by replacing a memmove
    with a pointer copy.
 2. Fix a bug where the null terminator at the end of the array in the small
    case was not copied


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37696 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-21 23:23:32 +00:00
Devang Patel
25e681ac22 CallGraphSCCPass manager may require other passes. 
Use schedulePass() to accomodate these requirement instead of directly
assigning a manager to new CallGraph PassManager.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37695 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-21 22:29:02 +00:00
Chris Lattner
1dbfd48fa2 Significantly improve the documentation of the instcombine divide/compare 
transformation.  Also, keep track of which end of the integer interval overflows
occur on.  This fixes Transforms/InstCombine/2007-06-21-DivCompareMiscomp.ll
and rdar://5278853, a miscompilation of perl.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37692 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-21 18:11:19 +00:00
Owen Anderson
66fd906074 Change lots of sets from std::set to SmallPtrSet. This reduces the time required to optimize 253.perlbmk from 10.9s to 5.3s. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37690 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-21 17:57:53 +00:00
Devang Patel
0e7f728ad1 Move code to update dominator information after basic block is split 
from LoopSimplify.cpp to Dominator.cpp


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37689 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-21 17:23:45 +00:00
Dan Gohman
2d74a318de Tidy up ValueType names in comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37688 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-21 14:48:26 +00:00
Dan Gohman
b9f1019696 Rename TargetLowering::getNumElements and friends to 
TargetLowering::getNumRegisters and similar, to avoid confusion with
the actual number of elements for vector types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37687 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-21 14:42:22 +00:00
Evan Cheng
b13cdbd865 Xforms: 
(add (select cc, 0, c), x) -> (select cc, x, (add, x, c))
(sub x, (select cc, 0, c)) -> (select cc, x, (sub, x, c))


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37685 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-21 07:39:16 +00:00
Owen Anderson
58e087b6e3 Eliminate a redundant check. This speeds up optimization of 253.perlbmk from 13.5 seconds to 10.9 seconds. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37683 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-21 01:59:05 +00:00
Owen Anderson
9cb56014ce Comment-ize the functions in GVNPRE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37681 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-21 00:19:05 +00:00
Chris Lattner
562ef78df2 refactor a bunch of code out of visitICmpInstWithInstAndIntCst into its own 
routine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37679 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-20 23:46:26 +00:00
Owen Anderson
3eaca716bf Split runOnFunction into many smaller functions. This make it easier to get accurate performance analysis of GVNPRE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37678 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-20 22:10:02 +00:00
Owen Anderson
0304b2bc2b Make GVNPRE accurate report whether it modified the function or not. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37673 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-20 18:30:20 +00:00
Owen Anderson
5dbea73e35 Get rid of an unneeded helper function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37670 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-20 00:43:33 +00:00
Evan Cheng
97e604e7d8 Be more conservative of duplicating blocks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37669 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 23:55:02 +00:00
Owen Anderson
4f703ec0a1 Use a DenseMap instead of an std::map for the value numbering. This reduces the time to optimize lencod on a PPC Debug build from ~300s to ~140s. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37668 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 23:23:54 +00:00
Owen Anderson
52471b102c Make dependsOnInvoke much more specific in what it tests, which in turn make it much faster to run. This reduces the time to optimize lencondwith a debug build on PPC from ~450s to ~300s. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37667 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 23:07:16 +00:00
Tanya Lattner
c91c56cf43 Moved Inliner.h to include/llvm/Transforms/IPO/InlinerPass.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37666 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 22:31:52 +00:00
Tanya Lattner
6f7426ec2e Inliner pass header file was moved. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37665 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 22:29:50 +00:00
Evan Cheng
9ffd340daf Avoid if-converting simple block that ends with unconditional branch or fallthrough unless it branches / falls to the 'false' block. Not profitable, may end up increasing code size. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37660 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 21:45:13 +00:00
Evan Cheng
277f0741c5 Allow predicated immediate ARM to ARM calls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37659 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 21:05:09 +00:00
Dan Gohman
5cec4db6ae Rename ScalarEvolution::deleteInstructionFromRecords to 
deleteValueFromRecords and loosen the types to all it to accept
Value* instead of just Instruction*, since this is what
ScalarEvolution uses internally anyway. This allows more flexibility
for future uses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37657 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 14:28:31 +00:00
Dan Gohman
b5bec2b6f6 Pass a SelectionDAG into SDNode::dump everywhere it's used, in prepration 
for needing the DAG node to print pre-legalize extended value types, and
to get better debug messages with target-specific nodes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37656 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 14:13:56 +00:00
Owen Anderson
d0954105f0 Handle constants in phi nodes properly. This fixes test/Transforms/GVNPRE/2007-06-18-ConstantInPhi.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37655 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 07:35:36 +00:00
Chris Lattner
85ef254630 document and hide two options. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37651 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 05:47:49 +00:00
Chris Lattner
3ee774091b describe an argument, hide it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37650 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 05:46:06 +00:00
Chris Lattner
2384d7b179 silence a bogus warning Duraid ran into. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37649 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 05:43:49 +00:00
Owen Anderson
20cb51fda4 Be careful to erase values from all of the appropriate sets when they're not needed anymore. This fixes a few more memory-related issues. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37647 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 05:37:32 +00:00
Owen Anderson
6cae7409b1 Remember to clear the maximal sets between functions. 
Thanks to Nicholas for valgrinding this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37646 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 04:32:55 +00:00
Owen Anderson
086f5f350b Refactor GVNPRE to use a much smart method of uniquing value sets, and centralize a lot of the value numbering information. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37645 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 03:31:41 +00:00
Dan Gohman
82a87a0172 Replace M_REMATERIALIZIBLE and the newly-added isOtherReMaterializableLoad 
with a general target hook to identify rematerializable instructions. Some
instructions are only rematerializable with specific operands, such as loads
from constant pools, while others are always rematerializable. This hook
allows both to be identified as being rematerializable with the same
mechanism.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37644 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 01:48:05 +00:00
Evan Cheng
eaa91b0a1f Replace TargetInstrInfo::CanBeDuplicated() with a M_NOT_DUPLICABLE bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37643 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 01:26:51 +00:00
Chris Lattner
52387be1e0 If a function is vararg, never pass inreg arguments in registers. Thanks to 
Anton for half of this patch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37641 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 00:13:10 +00:00
Chris Lattner
aeeccfc5b2 add isVarArg to CCState 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37640 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 00:11:09 +00:00
Evan Cheng
49892af264 Look for VECTOR_SHUFFLE that's identity operation on either LHS or RHS. This can happen before DAGCombiner catches it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37636 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 00:02:56 +00:00
Evan Cheng
c4047a8e96 Fix some fragile code wrt CFG edge updating. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37634 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-18 22:44:57 +00:00
Evan Cheng
2bdb7d0cc8 Move CorrectExtraCFGEdges() from BranchFolding.cpp to a MachineBasicBlock method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37633 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-18 22:43:58 +00:00
Devang Patel
7d97bf1429 Fix quotes in debug messages. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37630 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-18 21:32:29 +00:00
Chris Lattner
e10e6f7a36 make ComputeTopDownOrdering significantly faster and use less stack space 
by making it non-recursive


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37629 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-18 21:28:10 +00:00
Dan Gohman
f50cd749e1 In SCEVAddExpr::get, skip over any cast operands before looking for nested 
add operands after constant operands. The recent change to recognize
sign-extend expressions caused this to be exposed more often.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37628 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-18 19:30:09 +00:00
Anton Korobeynikov
03265f98a3 Make BasicAliasAnalysis correctly register itself. Patch by Devang 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37627 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-18 17:13:29 +00:00
Dan Gohman
7a0a4fc912 Make chain dependencies blue, in addition to being dashed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37626 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-18 15:30:16 +00:00
Dan Gohman
638c96d391 Define the pushq instruction for x86-64. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37625 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-18 14:12:56 +00:00
Evan Cheng
a1a878791b Properly remove duplicate instructions as result of diamond if-conversion. Other bug fixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37623 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-18 08:37:25 +00:00
Owen Anderson
bbf1197be1 Cache the results of dependsOnInvoke() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37622 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-18 04:42:29 +00:00
Owen Anderson
a8daa7176b Fix indentation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37621 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-18 04:31:21 +00:00
Owen Anderson
60e174495a Don't perform an expensive check if it's not necessary. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37620 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-18 04:30:44 +00:00
Bill Wendling
a9e64f6f2d Revert patch. It regresses: 
define double @test2(i64 %A) {
   %B = bitcast i64 %A to double
   ret double %B
}

$ llvm-as < t.ll | llc -march=x86-64

before:

         .align  4
         .globl  _test2
_test2:
         movd %rdi, %xmm0
         ret

after:

_test2:
         subq $8, %rsp
         movq %rdi, (%rsp)
         movsd (%rsp), %xmm0
         addq $8, %rsp
         ret


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37617 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-16 23:57:15 +00:00