Commit Graph

3202 Commits

Author SHA1 Message Date
Nick Lewycky
5adcefb04d Inform ScalarEvolutions that we're deleting Values.
This is the obviously correct part of the fix for PR1487.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37457 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-06 03:51:56 +00:00
Owen Anderson
12112af5e8 Add simple full redundancy elimination.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37455 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-06 01:27:49 +00:00
Chris Lattner
b47f6124f4 Fix PR1495 and CodeGen/X86/2007-06-05-LSR-Dominator.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37454 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-06 01:23:55 +00:00
Devang Patel
743f7e8839 Avoid non-trivial loop unswitching while optimizing for size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37446 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-06 00:21:03 +00:00
Owen Anderson
1d4eb6ab0d Fix a misunderstanding of the algorithm. Really, we should be tracking values
and expression separately.  We can get around this, however, by only keeping
opaque values in TMP_GEN.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37443 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-05 23:46:12 +00:00
Owen Anderson
8f862c80bc Don't leak memory.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37442 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-05 22:11:49 +00:00
Owen Anderson
359208032b Fix a small bug, some 80 cols violations, and add some more debugging output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37436 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-05 17:31:23 +00:00
Dan Gohman
d8af90c1da Allow insertelement, extractelement, and shufflevector to be hoisted/sunk
by LICM.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37435 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-05 16:05:55 +00:00
Bill Wendling
851879c4cf Patches by Chuck Rose to unbreak V Studio builds.
Thanks Chuck!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37428 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-04 23:52:59 +00:00
Devang Patel
170f2b9bef s/ETNode::getChildren/ETNode::getETNodeChildren/g
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37426 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-04 23:45:02 +00:00
Owen Anderson
dbc705b73f Don't use std::set_difference when the two sets are sorted differently. Compute
the difference manually instead.

This allows GVNPRE to produce correct analysis for the example in the GVNPRE
paper.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37425 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-04 23:34:56 +00:00
Owen Anderson
082fe7185e Fix a bunch of small bugs, and improve the debugging output significantly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37424 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-04 23:28:33 +00:00
Chris Lattner
f0a9aaba4c When rebuilding constant structs, make sure to honor the isPacked bit.
This fixes PR1491 and GlobalOpt/2007-06-04-PackedStruct.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37423 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-04 22:23:42 +00:00
Owen Anderson
5ea069fdda Make phi_translate correct.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37418 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-04 18:05:26 +00:00
Devang Patel
83beaee227 s/DominatorTree::createNewNode/DominatorTree::addNewBlock/g
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37415 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-04 16:43:25 +00:00
Devang Patel
26a6908768 Add basic block level interface to change immediate dominator
and create new node.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37414 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-04 16:22:33 +00:00
Devang Patel
26042420d6 s/llvm::DominatorTreeBase::DomTreeNode/llvm::DomTreeNode/g
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37407 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-04 00:32:22 +00:00
Owen Anderson
0fa6b37c6f Don't use the custom comparator where it's not necessary.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37406 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-03 22:02:14 +00:00
Devang Patel
bec7647f98 s/DominatorTreeBase::Node/DominatorTreeBase:DomTreeNode/g
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37403 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-03 06:26:14 +00:00
Owen Anderson
10ac137d0b Remove an unused method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37402 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-03 05:58:25 +00:00
Owen Anderson
a724ac1a73 There's no need to have an Expression class... Value works just as well! This simplifies a lot of code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37401 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-03 05:55:58 +00:00
Devang Patel
e7ae1a9dee Insert new instructions in AliasSet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37390 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-01 22:15:31 +00:00
Owen Anderson
aa7d3351f0 clean() needs to process things in topological order.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37389 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-01 22:00:37 +00:00
Owen Anderson
8e21fb7df8 Fix Expression comparison, which in turn fixes a value numbering error.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37386 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-01 17:34:47 +00:00
Owen Anderson
243f348c2a Add a topological sort function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37376 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-31 22:44:11 +00:00
Owen Anderson
8214d50338 Attempt to fix up phi_translate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37366 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-31 00:42:15 +00:00
Devang Patel
f38ac5dd39 Fix typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37360 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-30 15:29:37 +00:00
Chris Lattner
39a1c04323 Fix Transforms/ScalarRepl/2007-05-29-MemcpyPreserve.ll and the second
half of PR1421, by not decimating structs with holes that are the source and
destination of a memcpy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37358 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-30 06:11:23 +00:00
Owen Anderson
2c0c51593d Fix a typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37350 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-29 23:34:14 +00:00
Owen Anderson
e3072b292f Re-fix a bug, where I was now being too aggressive.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37348 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-29 23:26:30 +00:00
Owen Anderson
cdf8efde6a Use proper debugging facilities so other people don't have to look at my commented-out
debugging lines.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37347 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-29 23:15:21 +00:00
Owen Anderson
9b6bd12ef0 Comment debug code out that I accidentally uncommented last time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37346 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-29 22:43:03 +00:00
Owen Anderson
b502bdb604 Add a place where I missed using the maximal set. Note that using the maximal
set this way is _SLOW_.  Somewhere down the line, I'll look at speeding it up.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37345 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-29 22:35:41 +00:00
Owen Anderson
ea12a06a81 Very first part of a GVN-PRE implementation. It currently performs a bunch of analysis, and nothing more. It is also quite slow for the moment. However,
it should give a sense of what's going on.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37343 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-29 21:53:49 +00:00
Chris Lattner
7139406707 Fix PR1446 by not scalarrepl'ing giant structures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37326 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-24 18:43:04 +00:00
Dan Gohman
fa73ea2d9f Minor comment cleanups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37321 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-24 14:36:04 +00:00
Chris Lattner
2b7e0ade62 fix a miscompilation when passing a float through varargs
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37297 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-23 01:17:04 +00:00
Chris Lattner
a2b18de4ba Fix Transforms/InstCombine/2007-05-18-CastFoldBug.ll, a bug that devastates
objc code due to the way the FE lowers objc message sends.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37256 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-19 06:51:32 +00:00
Chris Lattner
fb3e1190fc Handle negative strides much more optimally. This compiles X86/lsr-negative-stride.ll
into:

_t:
        movl 8(%esp), %ecx
        movl 4(%esp), %eax
        cmpl %ecx, %eax
        je LBB1_3       #bb17
LBB1_1: #bb
        cmpl %ecx, %eax
        jg LBB1_4       #cond_true
LBB1_2: #cond_false
        subl %eax, %ecx
        cmpl %ecx, %eax
        jne LBB1_1      #bb
LBB1_3: #bb17
        ret
LBB1_4: #cond_true
        subl %ecx, %eax
        cmpl %ecx, %eax
        jne LBB1_1      #bb
        jmp LBB1_3      #bb17

instead of:

_t:
        subl $4, %esp
        movl %esi, (%esp)
        movl 12(%esp), %ecx
        movl 8(%esp), %eax
        cmpl %ecx, %eax
        je LBB1_4       #bb17
LBB1_1: #bb.outer
        movl %ecx, %edx
        negl %edx
LBB1_2: #bb
        cmpl %ecx, %eax
        jle LBB1_5      #cond_false
LBB1_3: #cond_true
        addl %edx, %eax
        cmpl %ecx, %eax
        jne LBB1_2      #bb
LBB1_4: #bb17
        movl (%esp), %esi
        addl $4, %esp
        ret
LBB1_5: #cond_false
        movl %ecx, %edx
        subl %eax, %edx
        movl %eax, %esi
        addl %esi, %esi
        cmpl %ecx, %esi
        je LBB1_4       #bb17
LBB1_6: #cond_false.bb.outer_crit_edge
        movl %edx, %ecx
        jmp LBB1_1      #bb.outer


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37252 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-19 01:22:21 +00:00
Devang Patel
9f26f73179 Fix PR1431
Test case at Transformations/SCCP/2007-05-16-InvokeCrash.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37185 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-17 22:10:15 +00:00
Chris Lattner
ce3e2bff8b selects can also reach here
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37081 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-15 06:42:04 +00:00
Chris Lattner
6b6aef8efc Fix Transforms/InstCombine/2007-05-14-Crash.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37057 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-15 00:16:00 +00:00
Dan Gohman
d9efdb2012 Correct a few comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37034 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-14 14:31:17 +00:00
Chris Lattner
79cfddf646 Fix Transforms/GlobalOpt/2007-05-13-Crash.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37020 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-13 21:28:07 +00:00
Chris Lattner
7d8ed8a941 significantly improve debug output of lsr
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36996 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-11 22:40:34 +00:00
Dan Gohman
23d9d27c26 Fix typos.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36994 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-11 21:10:54 +00:00
Dan Gohman
c767844fc9 This patch extends the LoopUnroll pass to be able to unroll loops
with unknown trip counts. This is left off by default, and a
command-line option enables it. It also begins to separate loop
unrolling into a utility routine; eventually it might be made usable
from other passes.

It currently works by inserting conditional branches between each
unrolled iteration, unless it proves that the trip count is a
multiple of a constant integer > 1, which it currently only does in
the rare case that the trip count expression is a Mul operator with
a ConstantInt operand. Eventually this information might be provided
by other sources, for example by a pass that peels/splits the loop
for this purpose.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36990 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-11 20:53:41 +00:00
Chris Lattner
3aea1bdca5 fix regressions from my previous checking, including
Transforms/InstCombine/2006-12-08-ICmp-Combining.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36989 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-11 16:58:45 +00:00
Chris Lattner
8885887b9c fix Transforms/InstCombine/2007-05-10-icmp-or.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36984 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-11 05:55:56 +00:00
Devang Patel
fd98dc9a76 Fix PR1333
Testcases :
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070507/049451.html
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070507/049452.html


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36955 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-09 08:24:12 +00:00