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Author SHA1 Message Date
Chris Lattner
7a5745b38c When PromoteLocallyUsedAllocas promoted allocas, it didn't remember 
to increment NumLocalPromoted, and didn't actually delete the
dead alloca, leading to an extra iteration of mem2reg.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40817 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-04 20:01:43 +00:00
Chris Lattner
59a2837715 std::map -> DenseMap 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40816 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-04 19:52:20 +00:00
Nick Lewycky
7956dae870 Clean up comments, fix up some confusing code logic. 
Predsimplify fails llvm-gcc bootstrap.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40815 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-04 18:45:32 +00:00
Chris Lattner
c69e491575 fix a logic bug where we wouldn't promote single store allocas if the 
stored value was a non-instruction value.  Doh.

This increase the # single store allocas from 8982 to 9026, and
speeds up mem2reg on the testcase in PR1432 from 2.17 to 2.13s.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40813 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-04 02:45:02 +00:00
Chris Lattner
4f63e76cda When we do the single-store optimization, delete both the store 
and the alloca so they don't get reprocessed.

This speeds up PR1432 from 2.20s to 2.17s.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40812 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-04 02:38:38 +00:00
Chris Lattner
d0458e5d4f Three improvements: 
1. Check for revisiting a block before checking domination, which is faster.
  2. If the stored value isn't an instruction, we don't have to check for domination.
  3. If we have a value used in the same block more than once, make sure to remove the
     block from the UsingBlocks vector.  Not doing so forces us to go through the slow
     path for the alloca.

The combination of these improvements increases the number of allocas on the fastpath
from 8935 to 8982 on PR1432.  This speeds it up from 2.90s to 2.20s (31%)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40811 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-04 02:32:22 +00:00
Chris Lattner
c3f6ea8330 switch from using a std::set to using a SmallPtrSet. This speeds up the 
testcase in PR1432 from 6.33s to 2.90s (2.22x)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40810 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-04 02:21:22 +00:00
Chris Lattner
b776a335b1 In mem2reg, when handling the single-store case, make sure to remove 
a using block from the list if we handle it.  Not doing this caused us
to not be able to promote (with the fast path) allocas which have uses (whoops).

This increases the # allocas hitting this fastpath from 4042 to 8935 on the
testcase in PR1432, speeding up mem2reg by 2.6x



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40809 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-04 02:15:24 +00:00
Chandler Carruth
022021951b Regenerating. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40808 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-04 01:56:21 +00:00
Chandler Carruth
6994040a95 This is the patch to provide clean intrinsic function overloading support in LLVM. It cleans up the intrinsic definitions and generally smooths the process for more complicated intrinsic writing. It will be used by the upcoming atomic intrinsics as well as vector and float intrinsics in the future. 
This also changes the syntax for llvm.bswap, llvm.part.set, llvm.part.select, and llvm.ct* intrinsics. They are automatically upgraded by both the LLVM ASM reader and the bitcode reader. The test cases have been updated, with special tests added to ensure the automatic upgrading is supported.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40807 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-04 01:51:18 +00:00
Chris Lattner
5dd75b4ca7 split rewriting of single-store allocas into its own 
method.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40806 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-04 01:47:41 +00:00
Chris Lattner
bbe104002f refactor some code to shrink PromoteMem2Reg::run a bit 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40805 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-04 01:41:18 +00:00
Chris Lattner
483ce14bf4 add a typedef, no other change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40804 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-04 01:19:38 +00:00
Chris Lattner
63cdcaa3d6 avoid an unneeded vector copy. This speeds up mem2reg on the testcase 
in PR1432 by 6%


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40803 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-04 01:07:49 +00:00
Chris Lattner
ac4aa4be9b make RenamePassWorkList a local var instead of an ivar. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40802 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-04 01:04:40 +00:00
Dale Johannesen
8c78a26955 Make x86 long double alignment 32 for everything but 
Darwin (which makes size within a struct==96)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40796 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-03 22:46:15 +00:00
Dale Johannesen
e713d9340a long double patch 3 of N. Add to MVT. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40793 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-03 20:51:37 +00:00
Dale Johannesen
8c1e6a119a 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.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40792 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-03 20:20:50 +00:00
Owen Anderson
ab8702787d Fix a subtle miscompilation. This allows 197.parser to be compiled correctly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40791 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-03 19:59:35 +00:00
Owen Anderson
4b55c3b0f1 Fix a subtle iterator invalidation bug in a recursive algorithm. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40776 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-03 11:03:26 +00:00
Reid Spencer
1af002d362 Prepare for "core" website. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40775 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-03 05:43:35 +00:00
Dale Johannesen
320fc8a39e Long double, part 1 of N. Support in IR. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40774 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-03 01:03:46 +00:00
Chris Lattner
107f54a002 add an observation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40772 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-03 00:17:42 +00:00
Chris Lattner
b0e71edb6b Fix an accidental commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40758 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-02 21:33:36 +00:00
Dan Gohman
61e729e2e9 More explicit keywords. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40757 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-02 21:21:54 +00:00
Dan Gohman
7f55fcbc6b 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40756 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-02 21:17:01 +00:00
Dan Gohman
f3372d1d64 Fix pastos in vector arithmetic intrinsics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40754 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-02 21:06:40 +00:00
Owen Anderson
9fed589912 Fix 80 col. violations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40751 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-02 18:20:52 +00:00
Owen Anderson
830db6a00e Fix 80 col. violations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40750 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-02 18:16:06 +00:00
Owen Anderson
666f6fe0ce Fix 80 col. violations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40749 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-02 18:11:11 +00:00
Chris Lattner
b15e49597f don't redefine a parameter 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40748 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-02 18:08:16 +00:00
Owen Anderson
1c2763d3fe Fix a bug that was causing several miscompilations on SPEC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40746 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-02 17:56:05 +00:00
Christopher Lamb
a326b5da4b Implement review feedback. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40745 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-02 17:52:00 +00:00
Chris Lattner
576c8da518 I don't have time to restore this functionality right now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40743 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-02 17:43:39 +00:00
Chris Lattner
5543a856ff Replacing a cast with another one does not reduce the number of 
casts in the input.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40741 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-02 17:23:38 +00:00
Chris Lattner
ce4eaecb2e Reduced testcase for PR1594 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40740 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-02 17:11:24 +00:00
Chris Lattner
b014678eb3 Disable an xform that causes an infinite loop. This fixes PR1594 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40739 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-02 16:56:32 +00:00
Chris Lattner
684b22df79 wrap some long lines. Major offenders that are left include 
gvn, gvnpre, dse, and predsimplify.  To see these, use:

  make check-line-length



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40738 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-02 16:53:43 +00:00
Devang Patel
1ff61385c8 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



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40737 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-02 15:25:57 +00:00
Dan Gohman
73a902b228 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40736 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-02 14:27:55 +00:00
Chris Lattner
951626b437 Enhance instcombine to be more aggressive about folding casts of 
operations of casts.  This implements InstCombine/zext-fold.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40726 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-02 06:11:14 +00:00
Anders Carlsson
bfbfcdafbe Fix bug spotted by Chris. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40725 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-02 06:05:19 +00:00
Anders Carlsson
7ccd9ec4f4 Add extend and extOrTrunc methods that do sign or zero extension depending on whether the integer is signed or not 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40724 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-02 06:00:13 +00:00
Evan Cheng
7afa166c76 Switch some multiplication instructions over to the new scheme for testing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40723 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-02 05:48:35 +00:00
Evan Cheng
33d5595d66 Do not emit copies for physical register output if it's not used. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40722 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-02 05:29:38 +00:00
Evan Cheng
0a2a515c5b Fix test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40721 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-02 05:04:16 +00:00
Chris Lattner
9dd7a5178f Fix PR1575 and test/Transforms/CondProp/2007-08-01-InvalidRead.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40720 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-02 04:47:05 +00:00
Reid Spencer
22256f482d Adjust for new CallInst constructor interface. 
This fixes test/Feature/llvm2cpp.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40714 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-02 03:30:26 +00:00
Scott Michel
335f4f7788 Style police: Expand the tabs to spaces! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40712 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-02 02:22:46 +00:00
Christopher Lamb
406bfa3e21 Teach BasicAA about noalias parameter attributes, but do it correctly this time. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40711 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-02 01:18:14 +00:00