f852e339b6
Fix CodeGen/X86/inline-asm-x-scalar.ll:test4, by retaining regclass info
...
for tied register constraints.
llvm-svn: 37601
2007-06-15 19:11:01 +00:00
234a90e83e
MachineInstr::isPredicable() is no longer needed.
...
llvm-svn: 37599
2007-06-15 19:06:07 +00:00
92bf2c628c
Workaround for PR1508.
...
llvm-svn: 37597
2007-06-15 19:04:19 +00:00
203a035251
Use SCEVConstant::get instead of SCEVUnknown::get to create an
...
integer constant SCEV.
llvm-svn: 37596
2007-06-15 18:00:55 +00:00
acaed06827
Fix test/Transforms/GVNPRE/2007-06-15-Looping.ll
...
llvm-svn: 37595
2007-06-15 17:55:15 +00:00
cd5f5e3ecd
Extra edges are deleted later if needed.
...
llvm-svn: 37593
2007-06-15 17:34:48 +00:00
cb9e09ad57
Add a SCEV class and supporting code for sign-extend expressions.
...
This created an ambiguity for expandInTy to decide when to use
sign-extension or zero-extension, but it turns out that most of its callers
don't actually need a type conversion, now that LLVM types don't have
explicit signedness. Drop expandInTy in favor of plain expand, and change
the few places that actually need a type conversion to do it themselves.
llvm-svn: 37591
2007-06-15 14:38:12 +00:00
92fb5453c3
Allow small blocks to be duplicated to enable if-conversion.
...
llvm-svn: 37590
2007-06-15 07:36:12 +00:00
373389260f
Generalize many transforms to work on ~ of vectors in addition to ~ of
...
integer ops. This implements Transforms/InstCombine/and-or-not.ll
test3/test4, and finishes off PR1510
llvm-svn: 37589
2007-06-15 06:23:19 +00:00
72e3958003
add a Constant::getAllOnesValue helper function, which works on integers
...
AND vectors.
llvm-svn: 37586
2007-06-15 06:10:53 +00:00
1edec381a5
Enhance BinaryOperator::isNot to support vector not.
...
llvm-svn: 37585
2007-06-15 06:04:24 +00:00
481e28b1f5
Implement two xforms:
...
1. ~(~X | Y) === (X & ~Y)
2. (A|B) & ~(A&B) -> A^B
This allows us to transform ~(~(a|b) | (a&b)) -> a^b.
This implements PR1510 for scalar values.
llvm-svn: 37584
2007-06-15 05:58:24 +00:00
f14e5175ed
delete some obviously dead vector operations, which deletes a few thousand
...
operations from Duraids example.
llvm-svn: 37582
2007-06-15 05:26:55 +00:00
add977670f
No really, clear predcessors states.
...
llvm-svn: 37581
2007-06-14 23:34:09 +00:00
9fc56c079d
If BB is predicated, invalidate its predecessor(s) which would if-convert it. It needs to be re-analyzed.
...
llvm-svn: 37580
2007-06-14 23:13:19 +00:00
5c4413120f
Rename MVT::getVectorBaseType to MVT::getVectorElementType.
...
llvm-svn: 37579
2007-06-14 22:58:02 +00:00
616627b002
Do not treat FP_REG_KILL as terminator in branch analysis (X86).
...
llvm-svn: 37578
2007-06-14 22:03:45 +00:00
e08f0eefa6
Fix typo.
...
llvm-svn: 37577
2007-06-14 21:26:08 +00:00
4a4a8eb00e
Add a target hook to allow loads from constant pools to be rematerialized, and an
...
implementation for x86.
llvm-svn: 37576
2007-06-14 20:50:44 +00:00
1e6f08b2a2
Fix some stupid bugs that have effectively disabled if-conversion.
...
llvm-svn: 37575
2007-06-14 20:28:52 +00:00
3a8e2a8b2f
Eliminate some redundant newlines in asm output.
...
llvm-svn: 37574
2007-06-14 15:00:27 +00:00
f274efef9f
Add support to tablegen for specifying subregister classes on a per register class basis.
...
llvm-svn: 37572
2007-06-13 22:20:15 +00:00
c68554683d
Handle blocks with 2 unconditional branches in AnalyzeBranch.
...
llvm-svn: 37571
2007-06-13 17:59:52 +00:00
7413736a7e
Only correctly lower exception handing intrinsics if exception handling is
...
turned on. Likewise for scanning of invokes to mark landing pads.
llvm-svn: 37570
2007-06-13 16:53:21 +00:00
26455c4ae0
Introduce new SelectionDAG node opcodes VEXTRACT_SUBVECTOR and
...
VCONCAT_VECTORS. Use these for CopyToReg and CopyFromReg legalizing in
the case that the full register is to be split into subvectors instead
of scalars. This replaces uses of VBIT_CONVERT to present values as
vector-of-vector types in order to make whole subvectors accessible via
BUILD_VECTOR and EXTRACT_VECTOR_ELT.
This is in preparation for adding extended ValueType values, where
having vector-of-vector types is undesirable.
llvm-svn: 37569
2007-06-13 15:12:02 +00:00
cbd51c8b60
When creating CopyFromReg nodes, always use legal types. And use the
...
correct types for the result vector, even though it is currently bitcasted
to a different type immediately.
llvm-svn: 37568
2007-06-13 14:55:16 +00:00
97f7236e70
The fix that was applied for PR1224 stops the compiler
...
crashing but breaks exception handling. The problem
described in PR1224 is that invoke is a terminator that
can produce a value. The value may be needed in other
blocks. The code that writes to registers values needed
in other blocks runs before terminators are lowered (in
this case invoke) so asserted because the value was not
yet available. The fix that was applied was to do invoke
lowering earlier, before writing values to registers.
The problem this causes is that the code to copy values
to registers can be output after the invoke call. If
an exception is raised and control is passed to the
landing pad then this copy-code will never execute. If
the value is needed in some code path reached via the
landing pad then that code will get something bogus.
So revert the original fix and simply skip invoke values
in the general copying to registers code. Instead copy
the invoke value to a register in the invoke lowering code.
llvm-svn: 37567
2007-06-13 05:51:31 +00:00
cbaaff58bf
Typo
...
llvm-svn: 37566
2007-06-13 00:04:00 +00:00
9acfa7b063
Now if-converting all 4 variants of triangles.
...
llvm-svn: 37565
2007-06-12 23:54:05 +00:00
4036ad485f
Fix test/Transforms/GVNPRE/2007-06-12-PhiTranslate.ll
...
llvm-svn: 37564
2007-06-12 22:43:57 +00:00
149a7616dc
isReachableFromEntry() is not suitable for post dominator.
...
llvm-svn: 37562
2007-06-12 17:50:25 +00:00
47419ee142
Remove redundant check.
...
llvm-svn: 37561
2007-06-12 17:35:20 +00:00
dcf0c03ff7
Check A dominates B and vise versa first while searching for nearest
...
common dominator.
llvm-svn: 37559
2007-06-12 17:17:57 +00:00
4276984012
Refactor some code, and fix test/Transforms/GVNPRE/2007-06-12-NoExit.ll by being more careful when using
...
post-dominator information.
llvm-svn: 37556
2007-06-12 16:57:50 +00:00
edfec0b515
Sink CmpInst's to their uses to reduce register pressure.
...
llvm-svn: 37554
2007-06-12 16:50:17 +00:00
a6ff5bf9ba
Break DominatorTree from ETNode.
...
Remove unused PostETForest.
llvm-svn: 37551
2007-06-12 00:54:38 +00:00
a75dd4dc56
Fix a few more bugs, including an instance of walking in reverse topological rather than topological order. This
...
fixes a testcase extracted from llvm-test.
llvm-svn: 37550
2007-06-12 00:50:47 +00:00
d324360352
Use SmallPtrSet instaed of std::set
...
llvm-svn: 37548
2007-06-12 00:40:51 +00:00
9576fac800
Check immediate dominators first while searching for nearset common dominator.
...
Fix 80 col violations.
llvm-svn: 37547
2007-06-12 00:35:38 +00:00
88ea2dbc68
Maintain DFS number in DomTreeNode itself.
...
This means now ETNodes are not useful anymore.
llvm-svn: 37546
2007-06-12 00:14:41 +00:00
78b9c68164
Add and use DominatorTreeBase::findNearestCommonDominator().
...
llvm-svn: 37545
2007-06-11 23:31:22 +00:00
4c2f003971
Fix a typo in bswap lowering.
...
llvm-svn: 37544
2007-06-11 23:16:16 +00:00
4dd31a7b1b
Restructure code to reduce ifcvt compile time cost.
...
llvm-svn: 37543
2007-06-11 22:26:22 +00:00
536ac4dca7
Simplify.
...
llvm-svn: 37542
2007-06-11 21:45:31 +00:00
d18054afcf
simplify
...
llvm-svn: 37541
2007-06-11 21:25:31 +00:00
ab2eee89a4
Simplify. Dominator Tree is required so always available.
...
llvm-svn: 37540
2007-06-11 21:18:00 +00:00
d184c18074
Handle functions with multiple exit blocks properly.
...
llvm-svn: 37539
2007-06-11 16:25:17 +00:00
c43f32b935
Use DominatorTree instead of ETForest.
...
llvm-svn: 37538
2007-06-11 15:40:48 +00:00
14b62a553e
Fix the build.
...
llvm-svn: 37537
2007-06-10 00:19:17 +00:00
223718c40e
Perform PRE of comparison operators.
...
llvm-svn: 37536
2007-06-09 18:35:31 +00:00
75372ad603
fix x86-64 mmx calling convention for real, which passes in integer gprs.
...
llvm-svn: 37534
2007-06-09 05:08:10 +00:00
a4a49e37ab
fix mmx handling bug
...
llvm-svn: 37533
2007-06-09 05:01:50 +00:00
d18b16034a
Fix edge case.
...
llvm-svn: 37532
2007-06-09 04:20:33 +00:00
2117d1f20e
Don't change CFG during analysis stage. Do so during ifcvt and invalidate predecessors accordingly.
...
llvm-svn: 37531
2007-06-09 01:03:43 +00:00
7d76b2a774
Collect statistics from GVN-PRE.
...
llvm-svn: 37530
2007-06-08 22:02:36 +00:00
288f1545a6
Carefully remove extraneous CFG edges after each ifcvt.
...
llvm-svn: 37529
2007-06-08 22:01:07 +00:00
5514bbef46
Add a utility routine to check for unpredicated terminator instruction.
...
llvm-svn: 37528
2007-06-08 21:59:56 +00:00
c7ebbaa10e
Define AsmTransCBE for ARM.
...
llvm-svn: 37527
2007-06-08 21:06:23 +00:00
b232efaf48
Fix typo in a comment.
...
llvm-svn: 37526
2007-06-08 20:57:08 +00:00
55994f2453
Fix a bug that was causing the elimination phase not to replace values when it should be.
...
With this patch, GVN-PRE now correctly optimizes the example from the thesis.
Many thanks to Daniel Berlin for helping me find errors in this.
llvm-svn: 37525
2007-06-08 20:44:02 +00:00
df1a42935b
Correct transfer predicate information.
...
llvm-svn: 37524
2007-06-08 19:17:12 +00:00
e93ccc013f
Hidden options to help debugging ifcvt issues.
...
llvm-svn: 37523
2007-06-08 19:10:51 +00:00
02f6e9b621
Factor live variable analysis so it does not do register coalescing
...
simultaneously. Move that pass to SimpleRegisterCoalescing.
This makes it easier to implement alternative register allocation and
coalescing strategies while maintaining reuse of the existing live
interval analysis.
llvm-svn: 37520
2007-06-08 17:18:56 +00:00
7783f82e21
Allow more cmp / bcc to be predicated; clean up triangle ifcvt checking code.
...
llvm-svn: 37518
2007-06-08 09:36:04 +00:00
6740da9407
Fix ARM condition code subsumission check.
...
llvm-svn: 37517
2007-06-08 09:14:47 +00:00
f62a5afb98
tBcc is not a barrier.
...
llvm-svn: 37516
2007-06-08 09:13:23 +00:00
dc8fc1550e
Use more realistically sized vectors. Reserve capacity if we know in advance
...
how much will be used.
llvm-svn: 37515
2007-06-08 08:59:11 +00:00
2e5efc30c2
Small bugfix, and const-ify some methods (Thanks, Bill).
...
llvm-svn: 37513
2007-06-08 01:52:45 +00:00
becc466451
Update LoopSimplify to require and preserve DominatorTree only.
...
Now LoopSimplify does not require nor preserve ETForest.
llvm-svn: 37512
2007-06-08 01:50:32 +00:00
86798e5e11
Make throttle a hidden parameter, per review.
...
llvm-svn: 37511
2007-06-08 01:08:52 +00:00
be80240b29
Add partial redundancy elimination.
...
llvm-svn: 37510
2007-06-08 01:03:01 +00:00
52fcf022f7
Throttle tail merging; handling blocks with large numbers of predecessors
...
is too slow.
llvm-svn: 37509
2007-06-08 00:34:27 +00:00
aee309e353
Use DominatorTree instead of ETForest.
...
llvm-svn: 37507
2007-06-08 00:17:13 +00:00
8ecffa996a
Do not preserve ETForest.
...
llvm-svn: 37506
2007-06-08 00:02:08 +00:00
31257adce9
Use DominatorTree instead of ETForest.
...
llvm-svn: 37505
2007-06-07 23:53:38 +00:00
46d92cae96
Add instruction level dominates(A,B) interface.
...
llvm-svn: 37504
2007-06-07 23:52:40 +00:00
1236ef7bcc
Only remove the edge from entry to false if false block is merged.
...
llvm-svn: 37503
2007-06-07 22:31:28 +00:00
3f4c6fe7e8
Do not require ETForest. Now it is unused by LICM.
...
llvm-svn: 37502
2007-06-07 22:21:15 +00:00
cf470e5255
Do not use ETForest as well as DomiantorTree. DominatorTree is sufficient.
...
llvm-svn: 37501
2007-06-07 22:17:16 +00:00
fc7fdef7d2
Use DominatorTree instead of ETForest.
...
This allows faster immediate domiantor walk.
llvm-svn: 37500
2007-06-07 21:57:03 +00:00
df6355ccf8
Use DominatorTree instead of ETForest.
...
llvm-svn: 37499
2007-06-07 21:42:15 +00:00
fb582f8dda
Use DominatorTree instead of ETForest.
...
llvm-svn: 37498
2007-06-07 21:35:27 +00:00
9a4d987a5f
Do not change the size of function arguments. PR 1489.
...
llvm-svn: 37496
2007-06-07 21:07:15 +00:00
5b8a5516e4
Use DominatorTree instead of ETForest.
...
llvm-svn: 37495
2007-06-07 18:45:06 +00:00
593e766fb5
Use DominatorTree instead of ETForest.
...
llvm-svn: 37494
2007-06-07 18:40:55 +00:00
af41e4a192
Maintain ETNode as part of DomTreeNode.
...
This adds redundancy for now.
llvm-svn: 37492
2007-06-07 17:47:21 +00:00
5801c23e05
Formating fixes.
...
llvm-svn: 37491
2007-06-07 17:12:16 +00:00
d3f3f0adad
ifcvt a triangle: don't merge ifcvt block with rejoin block if it can fall through to it. If merged, the resulting block is not a candidate for iterative ifcvting since it contains both predicated and non-predicated code.
...
llvm-svn: 37487
2007-06-07 08:13:00 +00:00
0ae22e99c8
Add assert to check if the attributes ZExt/SExt, NoAlias are apply to the
...
correct type of parameters.
llvm-svn: 37486
2007-06-07 06:12:03 +00:00
be9859eea2
Lots of bug fixes. Now finally in a reasonable state.
...
llvm-svn: 37485
2007-06-07 02:12:15 +00:00
842be09d86
Stupid cut-n-paste bug caused me soooo much grief. Why wasn't there a compilation warning? I blame it on the FE folks.
...
llvm-svn: 37484
2007-06-07 01:37:54 +00:00
85703e3796
Propagate alignment, section name and visibility when linking "appending
...
global values".
Fix noinline linkage.
llvm-svn: 37482
2007-06-06 22:01:12 +00:00
cb90f1d881
Instruct the inliner to obey the noinline attribute. Add test case.
...
llvm-svn: 37481
2007-06-06 21:59:26 +00:00
34404e3247
simplify this code and fix PR1493, now that llvm-gcc3 is dead.
...
llvm-svn: 37478
2007-06-06 20:51:41 +00:00
def2d9790a
Add new dominator tree node into dominator tree node map.
...
llvm-svn: 37475
2007-06-06 20:08:11 +00:00
368e8872db
Fix PR1499.
...
llvm-svn: 37472
2007-06-06 17:08:48 +00:00
cfb6f40424
Quick patch to fix the build, based on what it appears Evan meant to write.
...
Evan, please check that this is in fact correct.
llvm-svn: 37471
2007-06-06 16:22:00 +00:00
29d1dc6f1a
Fold the exception actions table harder: if two typeid lists start the
...
same, only output one copy of the common part.
llvm-svn: 37470
2007-06-06 15:37:31 +00:00
df543f4b84
Optimize this test. Firstly, only Instructions may use other Instructions.
...
Secondly, checking whether removal succeeded tells you whether it was in
the map to begin with.
llvm-svn: 37469
2007-06-06 11:26:20 +00:00
e8c3cbf971
Mark these instructions clobbersPred. They modify the condition code register.
...
llvm-svn: 37468
2007-06-06 10:17:05 +00:00
9030b98aca
Lots of bug fixes.
...
llvm-svn: 37467
2007-06-06 10:16:17 +00:00
d04409154f
Added clobbersPred.
...
llvm-svn: 37466
2007-06-06 10:15:28 +00:00
61166501a1
Additional fix for PR1422: make sure the landing pad label is placed in the
...
correct machine basic block - do not rely on the eh.exception intrinsic
being in the landing pad: the loop optimizers can move it out.
llvm-svn: 37463
2007-06-06 10:05:18 +00:00
35e43c49b0
Initial Mips support, here we go! =)
...
- Modifications from the last patch included
(issues pointed by Evan Cheng are now fixed).
- Added more MipsI instructions.
- Added more patterns to match branch instructions.
llvm-svn: 37461
2007-06-06 07:42:06 +00:00
3e84212897
Fix PR1487 and Transforms/IndVar/2007-06-06-DeleteDanglesPtr.ll
...
llvm-svn: 37459
2007-06-06 04:12:20 +00:00
91ed6efc24
Inform ScalarEvolutions that we're deleting Values.
...
This is the obviously correct part of the fix for PR1487.
llvm-svn: 37457
2007-06-06 03:51:56 +00:00
e4ec918be0
If a unconditional branch is added to branch to the false path during ifcvt, the predicated block cannot be iteratively ifcvted.
...
llvm-svn: 37456
2007-06-06 02:08:52 +00:00
634a063c1d
Add simple full redundancy elimination.
...
llvm-svn: 37455
2007-06-06 01:27:49 +00:00
1b7b6e76ec
Fix PR1495 and CodeGen/X86/2007-06-05-LSR-Dominator.ll
...
llvm-svn: 37454
2007-06-06 01:23:55 +00:00
b30a89457c
Minor statistics counting bug.
...
llvm-svn: 37451
2007-06-06 01:12:44 +00:00
30565998bb
Fix a couple of typos and be smarter about order of blocks when ifcvt a diamond.
...
llvm-svn: 37449
2007-06-06 00:57:55 +00:00
506310d3dd
Avoid non-trivial loop unswitching while optimizing for size.
...
llvm-svn: 37446
2007-06-06 00:21:03 +00:00
31f82dff21
Fix a user-reported error building with GCC 3.4.4 on Cygwin.
...
llvm-svn: 37445
2007-06-05 23:49:06 +00:00
7948422b78
Fix diamond shape ifcvt bugs.
...
llvm-svn: 37444
2007-06-05 23:46:14 +00:00
ddbe430732
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.
llvm-svn: 37443
2007-06-05 23:46:12 +00:00
c84720913a
Don't leak memory.
...
llvm-svn: 37442
2007-06-05 22:11:49 +00:00
c1a0b8ce1d
ReplaceUsesOfBlockWith() can modify the predecessors list.
...
llvm-svn: 37441
2007-06-05 22:03:53 +00:00
3e5bf0827c
Do not ifcvt if either true / false path is a backedge. Not profitable in almost all cases.
...
llvm-svn: 37440
2007-06-05 20:38:42 +00:00
3e6519e9fa
Fix PR 1497
...
Use separate pass id for CFGOnlyPrinter.
llvm-svn: 37439
2007-06-05 20:24:36 +00:00
5c48958a61
Print predicate of the second instruction of the two-piece constant MI.
...
llvm-svn: 37437
2007-06-05 18:55:18 +00:00
9b89e4b561
Fix a small bug, some 80 cols violations, and add some more debugging output.
...
llvm-svn: 37436
2007-06-05 17:31:23 +00:00
151169df1e
Allow insertelement, extractelement, and shufflevector to be hoisted/sunk
...
by LICM.
llvm-svn: 37435
2007-06-05 16:05:55 +00:00
252695f0f6
PIC label asm printing cosmetic changes.
...
llvm-svn: 37434
2007-06-05 07:36:38 +00:00
2c1acd6d9e
I had a senior moment.
...
llvm-svn: 37433
2007-06-05 07:05:25 +00:00
2444a9adeb
Commit first round work of PR1373. "noalias" is now fully supported in
...
VMCore, BitCode, and Assembly. Documentation and test case paramattrs.ll
updated also.
llvm-svn: 37432
2007-06-05 05:28:26 +00:00
6e4babe8cc
If the predicated block requires an early exit, end the block there and add a unconditional branch to false block. AnalyzeBranch() does not understand early exits.
...
llvm-svn: 37430
2007-06-05 01:31:40 +00:00
17aad8164e
Fix some subtle bugs: bug during succeessor copying; incorrectly updating states of ifcvted blocks.
...
llvm-svn: 37429
2007-06-05 00:07:37 +00:00
6357bf20fa
Patches by Chuck Rose to unbreak V Studio builds.
...
Thanks Chuck!
llvm-svn: 37428
2007-06-04 23:52:59 +00:00
0558dda319
Tail merging wasn't working for predecessors of landing pads. PR 1496.
...
llvm-svn: 37427
2007-06-04 23:52:54 +00:00
b3adb9876a
s/ETNode::getChildren/ETNode::getETNodeChildren/g
...
llvm-svn: 37426
2007-06-04 23:45:02 +00:00
3c9d8eef21
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.
llvm-svn: 37425
2007-06-04 23:34:56 +00:00
3df5299f94
Fix a bunch of small bugs, and improve the debugging output significantly.
...
llvm-svn: 37424
2007-06-04 23:28:33 +00:00
d7897d40b6
When rebuilding constant structs, make sure to honor the isPacked bit.
...
This fixes PR1491 and GlobalOpt/2007-06-04-PackedStruct.ll
llvm-svn: 37423
2007-06-04 22:23:42 +00:00
53ce7de03b
Global ctors / dtors alignment shouldn't be hard-coded at 4. e.g. It could be 8 for 64-bit targets.
...
llvm-svn: 37421
2007-06-04 20:39:18 +00:00
91233153bf
Forgot to check for if iterator reached the end.
...
llvm-svn: 37420
2007-06-04 20:33:36 +00:00
59ca6a846f
Misuse of hasExternalLinkage(), should be checking isDeclaration().
...
llvm-svn: 37419
2007-06-04 18:54:57 +00:00
38b6b22a41
Make phi_translate correct.
...
llvm-svn: 37418
2007-06-04 18:05:26 +00:00
4a7c2830d4
Add FIXMEs.
...
llvm-svn: 37417
2007-06-04 17:38:00 +00:00
ebc5b96735
s/DominatorTree::createNewNode/DominatorTree::addNewBlock/g
...
llvm-svn: 37415
2007-06-04 16:43:25 +00:00
a89566aefd
Add basic block level interface to change immediate dominator
...
and create new node.
llvm-svn: 37414
2007-06-04 16:22:33 +00:00
b4c2690446
Pass the DAG to SDNode::dump to let it do more detailed dumps in some cases.
...
llvm-svn: 37413
2007-06-04 16:17:33 +00:00
92a7f3a65e
Resolve implicit alignment before computing the FoldingSet information so
...
that the CSE map always contains explicit alignment information. This allows
more loads to be CSE'd when there is a mix of explicit-alignment loads and
implicit-alignment loads.
Also, in SelectionDAG::FindModifiedNodeSlot, add the operands to the
FoldingSetNodeID before the load/store information instead of after, so
that it matches what is done elsewhere.
llvm-svn: 37411
2007-06-04 15:49:41 +00:00
d609374ab3
Fix LLVM build on NetBSD. Patch by Neil Booth.
...
llvm-svn: 37410
2007-06-04 15:28:57 +00:00
312b723af2
Let IfConverter loose. Allow more aggressive subsumptions; reorder basic blocks to expose more ifcvt opportunities; code clean up and fixes.
...
llvm-svn: 37409
2007-06-04 06:47:22 +00:00
df75785594
Move ReplaceUsesOfBlockWith() out of BranchFolding into a MachineBasicBlock general facility.
...
llvm-svn: 37408
2007-06-04 06:44:01 +00:00
bdd1aaef10
s/llvm::DominatorTreeBase::DomTreeNode/llvm::DomTreeNode/g
...
llvm-svn: 37407
2007-06-04 00:32:22 +00:00
0eca9aad10
Don't use the custom comparator where it's not necessary.
...
llvm-svn: 37406
2007-06-03 22:02:14 +00:00
b781886de7
Add comments to fallsthrough cases. Also, this fixes PR1492
...
llvm-svn: 37405
2007-06-03 19:20:49 +00:00
8c32c1114f
Check arguments & return types of main(). Abort in case of no match.
...
llvm-svn: 37404
2007-06-03 19:17:35 +00:00
0e8aa7b69a
s/DominatorTreeBase::Node/DominatorTreeBase:DomTreeNode/g
...
llvm-svn: 37403
2007-06-03 06:26:14 +00:00
46499645db
Remove an unused method.
...
llvm-svn: 37402
2007-06-03 05:58:25 +00:00
0b68cda302
There's no need to have an Expression class... Value works just as well! This simplifies a lot of code.
...
llvm-svn: 37401
2007-06-03 05:55:58 +00:00
446548d2a3
update this entry, now that Anton implemented shift/and lowering for
...
switches. There is one really easy isel thing here with tst we are not
getting.
llvm-svn: 37400
2007-06-02 18:45:14 +00:00
f708f73a1b
The semantics of invoke require that we always jump to the unwind block
...
(landing pad) when an exception unwinds through the call. This doesn't
quite match the way the dwarf unwinder works: by default it only jumps to
the landing pad if the catch or filter specification matches, and otherwise
it keeps on unwinding. There are two ways of specifying to the unwinder
that it should "always" (more on why there are quotes here later) jump to
the landing pad: follow the specification by a 0 typeid, or follow it by
the typeid for the NULL typeinfo. GCC does the first, and this patch makes
LLVM do the same as gcc. However there is a problem: the unwinder performs
optimizations based on C++ semantics (it only expects destructors to be
run if the 0 typeid fires - known as "cleanups"), meaning it assumes that no
exceptions will be raised and that the raised exception will be reraised
at the end of the cleanup code. So if someone writes their own LLVM code
using the exception intrinsics they will get a nasty surprise if they don't
follow these rules. The other possibility of using the typeid corresponding
to NULL (catch-all) causes the unwinder to make no assumptions, so this is
probably what we should use in the long-run. However since we are still
having trouble getting exception handling working properly, for the moment
it seems best to closely imitate GCC.
llvm-svn: 37399
2007-06-02 17:16:06 +00:00
c063f5f362
Integrate exception filter support and exception catch support. This
...
simplifies the code in DwarfWriter, allows for multiple filters and
makes it trivial to specify filters accompanied by cleanups or catch-all
specifications (see next patch). What a deal! Patch blessed by Anton.
llvm-svn: 37398
2007-06-02 16:53:42 +00:00
0a0ae932ca
Make LowerCTPOP() support arbitrary bitwidth integer type.
...
llvm-svn: 37397
2007-06-02 04:10:33 +00:00
6e7cdce773
Fix CorrectExtraCFGEdges to allow for multiple LandingPad targets.
...
llvm-svn: 37394
2007-06-02 00:08:15 +00:00
9746e3a22b
Fancier algorithm in tail-merge comment implemented, so remove comment.
...
llvm-svn: 37393
2007-06-01 23:04:28 +00:00
3c0a13762d
Implement smarter algorithm for choosing which blocks to tail-merge.
...
See test/CodeGen/X86/test-pic-jtbl.ll for a case where it works well;
shaves another 10K off our favorite benchmark. I was hesitant about
this because of compile speed, but seems to do OK on a bootstrap.
llvm-svn: 37392
2007-06-01 23:02:45 +00:00
ff38cf8880
For PR1486:
...
Avoid overwriting the APInt instance with 0 bytes which causes the bitwidth
to be set to 0 (illegal) producing a subsequent assert.
llvm-svn: 37391
2007-06-01 22:23:29 +00:00
ac54a62fd2
Insert new instructions in AliasSet.
...
llvm-svn: 37390
2007-06-01 22:15:31 +00:00
48e93f2ce9
clean() needs to process things in topological order.
...
llvm-svn: 37389
2007-06-01 22:00:37 +00:00
9aa5fc8577
Opcode modifier s comes after condition code. e.g. addlts, not addslt.
...
llvm-svn: 37388
2007-06-01 20:51:29 +00:00
4dcf1e8582
Correctly mark early-exit on the false path.
...
llvm-svn: 37387
2007-06-01 20:29:21 +00:00
4c89142466
Fix Expression comparison, which in turn fixes a value numbering error.
...
llvm-svn: 37386
2007-06-01 17:34:47 +00:00
256144de4a
Set ARM ifcvt duplication limit to 3 for now.
...
llvm-svn: 37385
2007-06-01 08:28:59 +00:00
706421e712
Since TypeInfos are passed as i8 pointers, a NULL TypeInfo should be passed
...
as a null i8 pointer not as a 0 i32.
llvm-svn: 37383
2007-06-01 08:18:30 +00:00
6a2cf070cc
Ifcvt triangle: don't ifcvt 'true' BB if it has other predecessors; don't merge 'false' BB if it has other predecessors.
...
llvm-svn: 37382
2007-06-01 07:41:07 +00:00
a2ab4e5feb
Make jumptable non-predicable for now.
...
llvm-svn: 37381
2007-06-01 00:56:15 +00:00
95c7917d92
Remove a bogus check. Even terminators in a ifcvt need to be predicated. Unconditional branches can usually be converted to conditional ones.
...
llvm-svn: 37380
2007-06-01 00:55:26 +00:00
20e05997f5
Allow multiple ifcvt candidates to share children blocks; add some debugging code.
...
llvm-svn: 37379
2007-06-01 00:12:12 +00:00
331bf6a959
Add a topological sort function.
...
llvm-svn: 37376
2007-05-31 22:44:11 +00:00
1a401e68a8
Arrange for only 1 of multiple branches to landing pad to be kept.
...
Do not remove empty landing pads (EH table needs to be updated)
llvm-svn: 37375
2007-05-31 21:54:00 +00:00
e6ccb6c5ed
Fix a typo.
...
llvm-svn: 37374
2007-05-31 20:53:33 +00:00
3e3ff30aa2
Fix the asmprinter so that a globalvalue can specify an explicit alignment
...
smaller than the preferred alignment, but so that the target can actually
specify a minimum alignment if needed. This fixes some objc protocol
failures Devang tracked down.
llvm-svn: 37373
2007-05-31 18:57:45 +00:00
5b0757a401
Fix PR1424.
...
When a function has FP, the register scavenging spill slot offset already
was calculated.
llvm-svn: 37371
2007-05-31 18:27:58 +00:00
81d156e16f
Attempt to fix up phi_translate.
...
llvm-svn: 37366
2007-05-31 00:42:15 +00:00
905a8f4940
Change traversal order to bottom up in preparation for more aggressive if-conversion.
...
llvm-svn: 37365
2007-05-30 19:49:19 +00:00
397c4d9ef6
Fix CodeGen/PowerPC/2007-05-30-dagcombine-miscomp.ll, and PR1473.
...
llvm-svn: 37362
2007-05-30 16:30:06 +00:00
9b3b35d14f
Fix typo.
...
llvm-svn: 37360
2007-05-30 15:29:37 +00:00
8767920f20
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.
llvm-svn: 37358
2007-05-30 06:11:23 +00:00
d14ad078c6
Changed per review comment.
...
llvm-svn: 37355
2007-05-30 00:32:01 +00:00
a69ebdbebc
Make stable_sort in tail merging actually be stable (it never was, but didn't
...
matter until my last change). Reenable tail merging by default.
llvm-svn: 37354
2007-05-29 23:47:50 +00:00
20f7d30f92
Don't merge in tail block of a diamond if it has more than one predecessors after if-conversion.
...
llvm-svn: 37353
2007-05-29 23:37:20 +00:00
19eeee41ca
For VFP2 fldm, fstm instructions, the condition code is printed after the address mode and size specifier. e.g. fstmiaseq, not fstmeqias.
...
llvm-svn: 37351
2007-05-29 23:34:19 +00:00
4b0c1859fd
Fix a typo
...
llvm-svn: 37350
2007-05-29 23:34:14 +00:00
a6e9a4ce07
For ldrb, strh, etc., the condition code is before the width specifier. e.g. streqh, not strheq.
...
llvm-svn: 37349
2007-05-29 23:32:06 +00:00
0c4230724c
Re-fix a bug, where I was now being too aggressive.
...
llvm-svn: 37348
2007-05-29 23:26:30 +00:00
4a6ec8fb57
Use proper debugging facilities so other people don't have to look at my commented-out
...
debugging lines.
llvm-svn: 37347
2007-05-29 23:15:21 +00:00
f11bdc7637
Comment debug code out that I accidentally uncommented last time.
...
llvm-svn: 37346
2007-05-29 22:43:03 +00:00
ac83a3e4ff
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.
llvm-svn: 37345
2007-05-29 22:35:41 +00:00
c2237ce217
If there is an empty block between a source and its successor block, it still requires a unconditional branch.
...
llvm-svn: 37344
2007-05-29 22:31:16 +00:00
5fba6c19b2
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.
llvm-svn: 37343
2007-05-29 21:53:49 +00:00
2d91a4fd6a
Add missing const qualifiers.
...
llvm-svn: 37342
2007-05-29 18:42:18 +00:00
5983bdbb2c
Add missing const qualifiers.
...
llvm-svn: 37341
2007-05-29 18:35:22 +00:00
cff3e122b0
Implementation of compilation callback in PPC ELF32
...
llvm-svn: 37340
2007-05-29 16:33:18 +00:00
d7dc1ed64c
Correct the logic in LowerPartSet which cleared the bits from 0 to low-1.
...
llvm-svn: 37331
2007-05-26 03:43:13 +00:00
4698083b96
tighten up recursion depth again
...
llvm-svn: 37330
2007-05-25 02:19:06 +00:00
13f5f7df95
Silly boog.
...
llvm-svn: 37328
2007-05-25 00:59:01 +00:00
80c94a4a04
Fix PR1446 by not scalarrepl'ing giant structures.
...
llvm-svn: 37326
2007-05-24 18:43:04 +00:00
1409b6a59b
Blocks that cond-br and uncond-br/fallthrough to same block should have
...
only one successor.
llvm-svn: 37324
2007-05-24 18:31:55 +00:00
1af8c870c7
Fix for PR1444: do not create two successors to the same block.
...
Temporarily, this breaks CodeGen/Generic/2006-02-12-InsertLibraryCall.ll
by exposing an unrelated latent problem; working on that.
llvm-svn: 37323
2007-05-24 17:39:32 +00:00
8ff9ff7975
Compute the correct word number.
...
llvm-svn: 37322
2007-05-24 15:03:18 +00:00
30978078bf
Minor comment cleanups.
...
llvm-svn: 37321
2007-05-24 14:36:04 +00:00
703e0f8608
Add explicit qualification for namespace MVT members.
...
llvm-svn: 37320
2007-05-24 14:33:05 +00:00
5d4bb4f230
Add cases for v2f32.
...
llvm-svn: 37319
2007-05-24 14:29:12 +00:00
a4d187b8ce
Fix a typo that caused combiner to create mal-formed pre-indexed store where value store is the same as the base pointer.
...
llvm-svn: 37318
2007-05-24 02:35:39 +00:00
f4a77d2481
Two tail merging improvements:
...
When considering blocks with more than 2 predecessors, merge the block with
the largest number of matching insns, rather than the first block found.
Considering that 1 matching insn is enough to show a win for candidates that
already end with a branch.
llvm-svn: 37315
2007-05-23 21:07:20 +00:00
d50859e87b
Add dump() routines for debugging assistance.
...
llvm-svn: 37314
2007-05-23 19:55:36 +00:00
3b327826db
Mark all calls as "could throw", when exceptions are enabled. Emit necessary LP info too. This fixes PR1439
...
llvm-svn: 37311
2007-05-23 11:08:31 +00:00
6509c0673f
prevent exponential recursion in isNegatibleForFree
...
llvm-svn: 37310
2007-05-23 07:35:22 +00:00
d0e669199b
Preliminary iterative if-conversion support.
...
llvm-svn: 37309
2007-05-23 07:23:16 +00:00
1d764eca98
Hooks for predication support.
...
llvm-svn: 37308
2007-05-23 07:22:05 +00:00
c972de8c8b
Rename a parameter.
...
llvm-svn: 37307
2007-05-23 07:21:11 +00:00
688b2807df
when merging two alias sets together, be sure to propagate the volatility of
...
the inner set. This fixes PR1435 and Transforms/LICM/2007-05-22-VolatileSink.ll
llvm-svn: 37305
2007-05-23 06:36:35 +00:00
4d01a7b1b5
If user wants to run instcombine twice, do not block it.
...
llvm-svn: 37301
2007-05-23 05:08:52 +00:00
f79577d314
fix a miscompilation when passing a float through varargs
...
llvm-svn: 37297
2007-05-23 01:17:04 +00:00
bdf03b4174
Reinstate the patch for escaping non-printing characters and allow for
...
\\ to escape \. All these cases are now handled by the AsmParser.
llvm-svn: 37295
2007-05-22 19:27:35 +00:00
c5cec2a4e8
Regenerate.
...
llvm-svn: 37294
2007-05-22 19:08:16 +00:00
0f656c39e1
Don't allow the UnEscape code to read or write beyond the end of yytext.
...
Make sure we convert \\ into \.
llvm-svn: 37293
2007-05-22 19:07:45 +00:00
acfe667eab
Regenerate.
...
llvm-svn: 37292
2007-05-22 18:52:55 +00:00
3b208cca84
Implement full unescaping of escaped hex characters in all quoted identifiers
...
and strings.
llvm-svn: 37291
2007-05-22 18:52:21 +00:00
f9cbdc676c
name change requested by review of previous patch
...
llvm-svn: 37289
2007-05-22 18:31:04 +00:00
0ae7eb5e7c
Silence a warning.
...
llvm-svn: 37288
2007-05-22 18:13:40 +00:00
82810c8a13
Make tail merging the default, except on powerPC. There was no prior art
...
for a target-dependent default with a command-line override; this way
should be generally usable.
llvm-svn: 37285
2007-05-22 17:14:46 +00:00
83d7dd419a
temporarily revert reid's asmwriter patch, it is missing the asmparser piece
...
that decodes the escape sequences, thus breaking all cases that use them.
This fixes test/Assembler/2007-05-21-Escape.ll
llvm-svn: 37284
2007-05-22 07:00:50 +00:00
77119f43af
update comment
...
llvm-svn: 37282
2007-05-22 06:56:32 +00:00
31ab0ed37f
regenerate
...
llvm-svn: 37281
2007-05-22 06:47:55 +00:00
9111cd6b8a
simplify code
...
llvm-svn: 37280
2007-05-22 06:47:11 +00:00
3fb7fdfded
We only need to specify the most-implied feature for an architecture.
...
llvm-svn: 37275
2007-05-22 05:15:37 +00:00
8c8afb27d7
Fix some -march=thumb regressions. tBR_JTr is not predicable.
...
llvm-svn: 37272
2007-05-21 23:17:32 +00:00
d1de276c16
Use AXI3 not AXI2 for appropriate PIC PC-relative loads and stores. Cosmetic.
...
llvm-svn: 37271
2007-05-21 22:42:04 +00:00
e26c0916a3
If-convert early exit blocks (returns, etc.); bug fixes, etc.
...
llvm-svn: 37270
2007-05-21 22:22:58 +00:00
7d55f3733e
Add some patterns for PIC PC-relative loads and stores.
...
llvm-svn: 37269
2007-05-21 22:14:33 +00:00
147b334b6a
BlockHasNoFallThrough() now returns true if block ends with a return instruction; AnalyzeBranch() should ignore predicated instructionsd.
...
llvm-svn: 37268
2007-05-21 18:56:31 +00:00
34e82a4508
Only emit one entry in the exception action table for each action, even if
...
it occurs for multiple landing pads.
llvm-svn: 37267
2007-05-21 18:50:28 +00:00
fc94eb66d2
BlockHasNoFallThrough() now returns true if block ends with a return instruction.
...
llvm-svn: 37266
2007-05-21 18:44:17 +00:00
e44b45e757
Get the order of the hext digits right!
...
llvm-svn: 37261
2007-05-19 14:44:42 +00:00
6473fb7916
Adjust how LLVM names are produced:
...
1. Always use % for local and @ for global.
2. Replace NameNeedsQuotes with QuoteNameIfNeeded so that any adjustments
to the name can be done in one pass.
3. Implement generation of hex escapes so we don't get "wonky" characters
in the output.
llvm-svn: 37260
2007-05-19 07:25:21 +00:00
21526d6b56
Regenerate
...
llvm-svn: 37258
2007-05-19 07:22:10 +00:00
aba0cc7173
Make the %"..." syntax legal for local name. This just makes it symmetric
...
with global names which can already be @"..."
llvm-svn: 37257
2007-05-19 07:21:26 +00:00
a655a157a0
Fix Transforms/InstCombine/2007-05-18-CastFoldBug.ll, a bug that devastates
...
objc code due to the way the FE lowers objc message sends.
llvm-svn: 37256
2007-05-19 06:51:32 +00:00
80fcb754d9
On Linux platforms and at optimization levels -O1 and above, llvm-gcc can
...
turn "putchar" calls into _IO_putc calls which is a lower-level interface.
This patch allows these calls to be executed by lli in interpreter mode.
llvm-svn: 37254
2007-05-19 01:36:17 +00:00
e8bd53c36a
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
llvm-svn: 37252
2007-05-19 01:22:21 +00:00
1fa8276e70
same patch as the previous one, but the symmetric case
...
llvm-svn: 37249
2007-05-19 00:46:51 +00:00
b08cbbd737
Disable the (A == (B-A)) -> 2*A == B xform when the sub has multiple uses (in
...
this case, the xform introduces an extra operation). This compiles
PowerPC/compare-duplicate.ll into:
_test:
subf r2, r3, r4
cmplw cr0, r2, r3
bne cr0, LBB1_2 ;F
instead of:
_test:
slwi r2, r3, 1
subf r3, r3, r4
cmplw cr0, r4, r2
bne cr0, LBB1_2 ;F
This is target independent of course.
llvm-svn: 37246
2007-05-19 00:43:44 +00:00
b6af1aae35
Fix an assertion introduced by my last change to the toString method. We
...
can't use getZExtValue() to extract the low order bits for each digit.
Instead, we need to access the low order word directly.
llvm-svn: 37242
2007-05-19 00:29:55 +00:00
c12dd5207d
Apply this patch:
...
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070514/049845.html
llvm-svn: 37240
2007-05-18 23:21:46 +00:00
7ea2df6e2a
add a note
...
llvm-svn: 37239
2007-05-18 20:18:14 +00:00
018cffbca4
Clean up.
...
llvm-svn: 37237
2007-05-18 19:32:08 +00:00
faaf716540
Change to depth-first traversal.
...
llvm-svn: 37236
2007-05-18 19:26:33 +00:00
dafda82755
Document an inefficiency in tail merging.
...
llvm-svn: 37235
2007-05-18 18:46:40 +00:00
eefa83e67b
Use MVT::FIRST_VECTOR_VALUETYPE and MVT::LAST_VECTOR_VALUETYPE.
...
llvm-svn: 37234
2007-05-18 18:44:07 +00:00
b539df3389
Qualify calls to getTypeForValueType with MVT:: too.
...
llvm-svn: 37233
2007-05-18 18:41:29 +00:00
2e82cefd24
Some restructuring in preparation for most aggressive if-conversion.
...
llvm-svn: 37231
2007-05-18 18:14:37 +00:00
1796f1f8e9
Qualify several calls to functions in the MVT namespace, for consistency.
...
llvm-svn: 37230
2007-05-18 17:52:13 +00:00
f25d3a5d73
Watch out for blocks that end with a return.
...
llvm-svn: 37227
2007-05-18 17:06:53 +00:00
9eeada9470
Fix PR1434 and test/Linker/link-archive.ll, this is a regression from 1.9.
...
llvm-svn: 37204
2007-05-18 04:02:46 +00:00
478b805956
If true / false blocks fallthrough before ifcvt, add unconditional branches to ifcvt'd block.
...
llvm-svn: 37200
2007-05-18 01:55:58 +00:00
4ae1840d21
Mark calls non-predicable for now. Need to ensure it's the last instruction in the if-converted block or make sure it preserve condition code.
...
llvm-svn: 37199
2007-05-18 01:53:54 +00:00
f8956178af
Remove some unneeded branches. (spotted by Evan, thanks)
...
llvm-svn: 37198
2007-05-18 01:28:58 +00:00
ea623560f8
Silence some compilation warnings.
...
llvm-svn: 37197
2007-05-18 01:19:57 +00:00
0f745da4fe
Make use of target specific block size limits; bug fixes.
...
llvm-svn: 37195
2007-05-18 00:20:58 +00:00
6addd65914
Set ARM if-conversion block size threshold to 10 instructions for now.
...
llvm-svn: 37194
2007-05-18 00:19:34 +00:00
e20dd92792
RemoveBranch() and InsertBranch() now returns number of instructions deleted / inserted.
...
llvm-svn: 37193
2007-05-18 00:18:17 +00:00
99be49dd9b
RemoveBranch() and InsertBranch() now returns number of instructions deleted / inserted.
...
llvm-svn: 37192
2007-05-18 00:05:48 +00:00
a92b2b38ff
Move isSuccessor() offline, change it to use std::find.
...
llvm-svn: 37190
2007-05-17 23:58:53 +00:00
2c30a37a5c
Fix PR1431
...
Test case at Transformations/SCCP/2007-05-16-InvokeCrash.ll
llvm-svn: 37185
2007-05-17 22:10:15 +00:00
58698d2534
More effective breakdown of memcpy into repeated load/store. These are now
...
in the order lod;lod;lod;sto;sto;sto which means the load-store optimizer
has a better chance of producing ldm/stm. Ideally you would get cooperation
from the RA as well but this is not there yet.
llvm-svn: 37179
2007-05-17 21:31:21 +00:00
5c138133b7
Get rid of leading zeros in the output of toString.
...
llvm-svn: 37175
2007-05-17 19:23:02 +00:00
afa1cb6da3
Fix a bogus check that prevented folding VECTOR_SHUFFLE to UNDEF; add an optimization to fold VECTOR_SHUFFLE to a zero vector.
...
llvm-svn: 37173
2007-05-17 18:45:50 +00:00
632c3f01ed
Added missing patterns for UNPCKH* and PUNPCKH*.
...
llvm-svn: 37172
2007-05-17 18:44:37 +00:00
0184f88deb
disable MaskedValueIsZero, ComputeMaskedBits, and SimplifyDemandedBits for
...
i128 integers. The 64-bit masks are not wide enough to represent the results.
These should be converted to APInt someday.
llvm-svn: 37169
2007-05-17 18:19:23 +00:00
2135bc08d6
add expand support for ADDC/SUBC/ADDE/SUBE so we can codegen 128-bit add/sub on 32-bit (or less) targets
...
llvm-svn: 37168
2007-05-17 18:15:41 +00:00
dade607f19
This is the correct fix for PR1427. This fixes mmx-shuffle.ll and doesn't
...
cause other regressions.
llvm-svn: 37160
2007-05-17 17:13:13 +00:00
1ad4618715
Revert patch for PR1427. It breaks almost all vector tests.
...
llvm-svn: 37159
2007-05-17 07:50:14 +00:00
3e549e9d5f
add support for 128-bit add/sub on ppc64
...
llvm-svn: 37158
2007-05-17 06:52:46 +00:00
07ae5465cd
Print integer values as both decimal and hexadecimal for convenience
...
of verifying result values when debugging.
llvm-svn: 37156
2007-05-17 06:47:54 +00:00
13f4bf5c5e
add support for 128-bit integer add/sub
...
llvm-svn: 37154
2007-05-17 06:35:11 +00:00
fffdf10566
For lshr by 0 bits, just return *this as a short cut. This also prevents
...
undefined behavior when the width > 64 bits.
llvm-svn: 37153
2007-05-17 06:26:29 +00:00
6a5a46322f
Fix PR1427 and test/CodeGen/X86/mmx-shuffle.ll
...
llvm-svn: 37141
2007-05-17 03:29:42 +00:00
2db22024cf
Remove. Not needed.
...
llvm-svn: 37139
2007-05-17 00:11:35 +00:00
733b4bd8ae
Default implementation of TargetInstrInfo::getBlockSize().
...
llvm-svn: 37138
2007-05-16 23:53:44 +00:00
429178d727
Add target hook to specify block size limit for if-conversion.
...
llvm-svn: 37134
2007-05-16 23:45:53 +00:00
7a6c175e7a
Don't fold bitconvert(load) for preinc/postdec loads. Likewise stores.
...
llvm-svn: 37130
2007-05-16 22:45:30 +00:00
af71610429
isBlockPredicable() always ignore terminal instructions; add comments.
...
llvm-svn: 37126
2007-05-16 21:54:37 +00:00
1634e7186b
ARM::tB is also predicable.
...
llvm-svn: 37125
2007-05-16 21:53:43 +00:00
dcff2eb0e8
PredicateInstruction returns true if the operation was successful.
...
llvm-svn: 37124
2007-05-16 21:53:07 +00:00
973c3739b0
Add default implementation of PredicateInstruction().
...
llvm-svn: 37123
2007-05-16 21:20:37 +00:00
5ea933a009
Rename M_PREDICATED to M_PREDICABLE; Moved isPredicable() to MachineInstr.
...
llvm-svn: 37121
2007-05-16 20:56:08 +00:00
4423687831
Move if-conversion after all passes that may use register scavenger.
...
llvm-svn: 37120
2007-05-16 20:52:46 +00:00
e2762c3d68
Removed isPredicable().
...
llvm-svn: 37119
2007-05-16 20:50:23 +00:00
dcd6cdf896
Make ARM::B isPredicable; Make Bcc and MOVCC condition option a normal operand so they are not predicable.
...
llvm-svn: 37118
2007-05-16 20:50:01 +00:00
cc33218607
Added isPredicable bit to class Instruction.
...
llvm-svn: 37117
2007-05-16 20:47:01 +00:00
a93c981f66
Fix a bug in the "fromString" method where radix 2,8 and 16 values were
...
not being generated correctly because the shl operator does not mutate its
object but returns a new value. Also, make the distinction between radix
16 and the others more clear.
llvm-svn: 37111
2007-05-16 19:18:22 +00:00
1925c537f2
Avoid a "loss of precision" error in gcc 4.1.3.
...
llvm-svn: 37105
2007-05-16 16:39:29 +00:00
59ae77486c
Output exception call-sites in address order, as required by the unwinding
...
runtime.
llvm-svn: 37104
2007-05-16 12:12:23 +00:00
01a4227ed1
Conditional branch is not a barrier.
...
llvm-svn: 37103
2007-05-16 07:45:54 +00:00
48fb92f75d
Use a ptr set instead of a linear search to unique TokenFactor operands.
...
This fixes PR1423
llvm-svn: 37102
2007-05-16 06:37:59 +00:00
888653cdba
implement the missing maskmovq mmx intrinsic that akor hit.
...
llvm-svn: 37100
2007-05-16 06:08:17 +00:00
c95f95b6da
Fix comment.
...
llvm-svn: 37098
2007-05-16 05:14:06 +00:00
35fc2119b0
Devang points out that we need an assertion here.
...
llvm-svn: 37097
2007-05-16 05:11:10 +00:00
65ba7501fc
Implement printing of instruction result values when debug info is turned
...
on. This helps to speed up the debugging time by showing computational
results as the program executes.
llvm-svn: 37095
2007-05-16 02:05:13 +00:00
288f133c71
Bug fix: should check ABI alignment, not pref. alignment.
...
llvm-svn: 37094
2007-05-16 02:04:50 +00:00
ad3aac71ce
Hooks for predication support.
...
llvm-svn: 37093
2007-05-16 02:01:49 +00:00
f5e53a58db
Initial commit of (very basic) if converter.
...
llvm-svn: 37092
2007-05-16 02:00:57 +00:00
420a85d0cf
Remove extra CFG edges before doing these passes; it makes them happier.
...
llvm-svn: 37089
2007-05-15 21:19:17 +00:00
3f142cbca2
Fix an infinite recursion in GetNegatedExpression.
...
llvm-svn: 37086
2007-05-15 17:05:43 +00:00
750e8c5d4d
The index into the actions table is a ULEB128 not a SLEB128.
...
llvm-svn: 37084
2007-05-15 13:54:14 +00:00
66ad6fac2f
selects can also reach here
...
llvm-svn: 37081
2007-05-15 06:42:04 +00:00
a6f88ced8b
implement the ModuleProvider::dematerializeFunction hook
...
llvm-svn: 37080
2007-05-15 06:29:44 +00:00
daed139420
Un-brain-dead-ify the lowering of part set for the reverse case.
...
llvm-svn: 37071
2007-05-15 02:26:52 +00:00
c7596efdad
Fix some subtle issues handling immediate values. This fixes
...
test/CodeGen/ARM/2007-05-14-InlineAsmCstCrash.ll
llvm-svn: 37069
2007-05-15 01:33:58 +00:00
0b7472da6f
fix some subtle inline asm selection issues
...
llvm-svn: 37067
2007-05-15 01:31:05 +00:00
0f7cbe8370
Add PredicateOperand to all ARM instructions that have the condition field.
...
llvm-svn: 37066
2007-05-15 01:29:07 +00:00
c8798d085c
fix subtle bugs in inline asm operand selection
...
llvm-svn: 37065
2007-05-15 01:28:08 +00:00
4d728b0419
Added getNumExplicitOperands and findFirstPredOperand.
...
llvm-svn: 37064
2007-05-15 01:26:09 +00:00
234f96daa8
Fix Transforms/InstCombine/2007-05-14-Crash.ll
...
llvm-svn: 37057
2007-05-15 00:16:00 +00:00
1b8d46ab21
Fix previous patch. GOTOFF can be used only when the symbol has internal
...
linkage or hidden visibility.
llvm-svn: 37055
2007-05-14 23:20:21 +00:00
e49c974a7c
implement a simple fneg optimization/propagation thing. This compiles:
...
CodeGen/PowerPC/fneg.ll into:
_t4:
fmul f0, f3, f4
fmadd f1, f1, f2, f0
blr
instead of:
_t4:
fneg f0, f3
fmul f0, f0, f4
fmsub f1, f1, f2, f0
blr
llvm-svn: 37054
2007-05-14 22:04:50 +00:00
e1595b6859
Only worry about intervening kill if there are more than one live ranges in the interval.
...
llvm-svn: 37052
2007-05-14 21:23:51 +00:00
c690cba7d9
Fix for PR1406:
...
v1 =
r2 = move v1
= op r2<kill>
...
r2 = move v1
= op r2<kill>
Clear the first r2 kill if v1 and r2 are joined.
llvm-svn: 37050
2007-05-14 21:10:05 +00:00
fc2377d4ed
When marking a register as being implicitly defined, make sure to clear its partial use info as well.
...
llvm-svn: 37046
2007-05-14 20:39:18 +00:00
d705f5d51d
Optimize PIC implementation. GOTOFF can be used when the symbol is defined
...
and used in the same module.
llvm-svn: 37044
2007-05-14 18:46:23 +00:00
3551928a2b
Enable aliases on arm-linux.
...
llvm-svn: 37042
2007-05-14 18:32:56 +00:00
764ae2a21b
Give names to the final result values of the part_set computations. This
...
just aids in readability and debugability of the output. No functional change.
llvm-svn: 37037
2007-05-14 17:21:17 +00:00
8d40e4d965
Correct a few comments.
...
llvm-svn: 37034
2007-05-14 14:31:17 +00:00
90d97ac1e6
Add passes -view-cfg and -view-cfg-only that are like -print-cfg and
...
-print-cfg-only except they use the ViewCFG function, which displays the
CFG rendered with graphviz with gv.
llvm-svn: 37033
2007-05-14 14:25:08 +00:00
98ed7db7ab
Make the results for the rotate functions correct when rotateAmt == 0.
...
llvm-svn: 37026
2007-05-14 00:15:28 +00:00
4c50b52f63
Add some things needed by the llvm-gcc version supporting bit accurate integer
...
types:
1. Functions to compute div/rem at the same time.
2. Further assurance that an APInt with 0 bitwidth cannot be constructed.
3. Left and right rotate operations.
4. An exactLogBase2 function which requires an exact power of two or it
returns -1.
llvm-svn: 37025
2007-05-13 23:44:59 +00:00
1904e45d0c
Fix PR1413
...
llvm-svn: 37023
2007-05-13 22:19:27 +00:00
cea37beb52
Fix Transforms/GlobalOpt/2007-05-13-Crash.ll
...
llvm-svn: 37020
2007-05-13 21:28:07 +00:00
1ee0c8d563
Emit function debug frames in one atom. This will prevent us from generating incorrect assembler in case of both
...
debug information & exception information presented.
llvm-svn: 37019
2007-05-13 17:30:11 +00:00
bbaf55448b
Emit multiple common EH frames for multiple (including blank) personality
...
functions. This partly fixes PR1414: now we're restricted only to one
personality function per eh frame, not per module. Further work on
"multiple personalities" topic needs representative example.
llvm-svn: 37018
2007-05-13 15:42:26 +00:00
13da17843c
More DWARF-related things cleanup:
...
1. Fix PR1380
2. Apply Duncan's patch from PR1410
3. Insert workaround for "one personality function per module" as noted in PR1414
4. Emit correct debug frames for x86/linux. This partly fixes DebugInfo/2006-11-06-StackTrace.cpp: stack trace is
shown correctly, but arguments for function on top of stack are displayed incorrectly.
llvm-svn: 37015
2007-05-12 22:36:25 +00:00
81ee020f64
Fix shl to produce the correct result when the bitwidth is > 64 and the
...
shift amount is 0. Previously this code would do a lshr by the bit width
which can lead to incorrect results.
llvm-svn: 37010
2007-05-12 18:01:57 +00:00
bf283708f7
Get the size of auto arrays right, regardless of its changing size.
...
llvm-svn: 37006
2007-05-12 11:07:40 +00:00
a26153143e
allow partially materialized modules to be written out, which just strips out
...
the functions which haven't been read.
llvm-svn: 36999
2007-05-11 23:51:59 +00:00
79a71ec3ad
Fix http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070507/049516.html
...
llvm-svn: 36998
2007-05-11 23:14:43 +00:00
1480e16596
significantly improve debug output of lsr
...
llvm-svn: 36996
2007-05-11 22:40:34 +00:00
fead7979f7
Update comments to say "vector" instead of "packed".
...
llvm-svn: 36995
2007-05-11 21:43:24 +00:00
b5650ebd6a
Fix typos.
...
llvm-svn: 36994
2007-05-11 21:10:54 +00:00
2980d9da45
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.
llvm-svn: 36990
2007-05-11 20:53:41 +00:00
600db3eb96
fix regressions from my previous checking, including
...
Transforms/InstCombine/2006-12-08-ICmp-Combining.ll
llvm-svn: 36989
2007-05-11 16:58:45 +00:00
67286b1266
Perform correct actions numbers/sizes computation
...
llvm-svn: 36988
2007-05-11 08:47:35 +00:00
00d02442b0
Fix action No calculation in multiple-invoke-one-LP mode
...
llvm-svn: 36987
2007-05-11 08:23:57 +00:00
fe2b44de9f
fix Transforms/InstCombine/2007-05-10-icmp-or.ll
...
llvm-svn: 36984
2007-05-11 05:55:56 +00:00
436370bac8
fix a memory leak
...
llvm-svn: 36981
2007-05-11 00:43:26 +00:00
fd96905f12
Fix a bug where the bcreader could crash on .bc files that were an exact
...
multiple of the page size, due to a bug in MappedFile
llvm-svn: 36980
2007-05-11 00:00:27 +00:00
cc8f571bc8
Do not generate branches to entry block. This fixes several test suite
...
failures on PPC (can happen only when prologue code is null)
llvm-svn: 36979
2007-05-10 23:59:23 +00:00
Chris Lattner