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34131 Commits

Author SHA1 Message Date
Evan Cheng
4aedb61d03 Remat VLDRD from constpool. Clean up some instruction property specifications. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89478 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-20 19:57:15 +00:00
Evan Cheng
87b75ba75e Add option -licm-const-load to hoist all loads from constant memory. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89477 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-20 19:55:37 +00:00
Jim Grosbach
a9562568e5 The verify() call of CPEIsInRange() isn't right for the assertion check of 
constant pool ranges, as CPEIsInRange() makes conservative assumptions about
the potential alignment changes from branch adjustments. The verification,
on the other hand, runs after those branch adjustments are made, so the
effects on alignment are known and already taken into account. The sanity
check in verify should check the range directly instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89473 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-20 19:37:38 +00:00
Dan Gohman
5bd698e65c Use stripPointerCasts(). Thanks Duncan! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89472 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-20 19:33:16 +00:00
David Goodwin
557bbe6b5d Remove some old experimental code that is no longer needed. Remove additional, speculative scheduling pass as its cost did not translate into significant performance improvement. Minor tweaks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89471 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-20 19:32:48 +00:00
Jakob Stoklund Olesen
6cd8103bea More consistent labelling of basic blocks in debug output 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89470 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-20 18:54:59 +00:00
Dan Gohman
837be07979 Revert the rule that considers comparisons between two pointers in the 
same object to be a non-capture; Duncan pointed out a way that such
a comparison could be a capture.

Make the rule that considers a comparison against null more specific,
and only consider noalias return values compared against null. This
still supports test/Transforms/GVN/nonescaping-malloc.ll, and is not
susceptible to the problem Duncan pointed out with noalias arguments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89468 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-20 17:50:21 +00:00
Mikhail Glushenkov
37628e0098 Move the handling of CommaSeparated options into ProvideOption. 
Makes '--comma-separated val1,val2' mean the same thing as
'--comma-separated=val1,val2' (that is, 'val1' and 'val2' are not lumped
together as 'val1,val2'). Also declutters the main loop a bit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89463 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-20 17:23:17 +00:00
Duncan Sands
76700ba64c Fix PR5563, an expensive checks failure when running on 
tests/Transforms/InstCombine/shufflemask-undef.ll.  If
anyone cares, the use of 2*e here (and the equivalent
all over the place in instcombine) seems wrong, though
harmless: it should really be twice the length of the
input vector.  I think shufflevector used to require
that the mask have the same length as the input, but I
don't think that's true any more.  I don't care enough
about vectors to do anything about this...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89456 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-20 13:19:51 +00:00
Duncan Sands
c088ae8b84 Fix PR5558, which was caused by a wrong fix for PR3393 (see commit 63048), 
which was an expensive checks failure due to a bug in the checking.  This
patch in essence reverts the original fix for PR3393, and refixes it by a
tweak to the way expensive checking is done.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89454 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-20 10:45:10 +00:00
Dan Gohman
b4afb137ef Fix fast-isel to avoid selecting the return instruction if a 
tail call has been encountered.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89444 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-20 02:51:26 +00:00
Jim Grosbach
de8b1dbf95 Remove verifySizes() since it's not adding much value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89443 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-20 02:32:06 +00:00
Evan Cheng
9b82425cb0 Also CSE non-pic load from constant pools. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89440 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-20 02:10:27 +00:00
Dan Gohman
2e7e94826a Add an experimental option to run gep-splitting and no-load GVN 
just before codegen.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89439 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-20 02:03:44 +00:00
Dan Gohman
ae079c250f Simplify this code; it's not necessary to check isIdentifiedObject here 
because if the results from getUnderlyingObject match, the values must
be from the same underlying object, even if we don't know what that
object is.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89434 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-20 01:34:03 +00:00
Jakob Stoklund Olesen
324da7647c Add MachineBasicBlock::getName, and use it in place of getBasicBlock()->getName. 
Fix debug code that assumes getBasicBlock never returns NULL.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89428 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-20 01:17:03 +00:00
Dan Gohman
ac146657fc Teach getSmallConstantTripMultiple about Shl operators. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89426 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-20 01:09:34 +00:00
Evan Cheng
9ef4835bd8 Fix codegen of conditional move of immediates. We were not making use of the immediate forms of cmov instructions at all. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89423 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-20 00:54:03 +00:00
Lang Hames
8783e401a3 Removed references to LiveStacks from Spiller.* . They're no longer needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89422 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-20 00:53:30 +00:00
Dan Gohman
76c638a14c Refine the capture tracking rules for comparisons to be more 
careful about crazy methods of capturing pointers using comparisons.
Comparisons of identified objects with null in the default address
space are not captures. And, comparisons of two pointers within the
same identified object are not captures.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89421 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-20 00:50:47 +00:00
Dan Gohman
452ae47db6 Use isVoidTy(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89419 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-20 00:43:11 +00:00
Eric Christopher
0dde97156c Update comment to reflect instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89414 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-20 00:21:55 +00:00
Dan Gohman
6d903092c9 Refine this to only apply to null in the default address space. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89411 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-19 23:53:49 +00:00
Jeffrey Yasskin
e03a39b096 Try to fix JITTest.FarCallToKnownFunction on ARM and PPC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89410 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-19 23:42:58 +00:00
Oscar Fuentes
470fb51961 Use CMAKE_DL_LIBS instead of raw library name. Fixes bug 5536. 
Patch by Tobias Grosser!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89406 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-19 23:21:43 +00:00
David Goodwin
3e72d301e0 Fix a couple of problems with maintaining liveness information for antidep breaking. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89404 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-19 23:12:37 +00:00
Jim Grosbach
4d8e90a026 When placing constant islands and adjusting for alignment padding, inline 
assembly can confuse things utterly, as it's assumed that instructions in
inline assembly are 4 bytes wide. For Thumb mode, that's often not true,
so the calculations for when alignment padding will be present get thrown off,
ultimately leading to out of range constant pool entry references. Making
more conservative assumptions that padding may be necessary when inline asm
is present avoids this situation.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89403 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-19 23:10:28 +00:00
Dan Gohman
f94b5edc45 Extend CaptureTracking to indicate when a value is never stored, even 
if it is not ultimately captured. Teach BasicAliasAnalysis that a 
local object address which does not escape and is never stored does
not alias with a value resulting from a load.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89398 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-19 21:57:48 +00:00
Evan Cheng
07ba906413 Refactor cmov selection code out to a separate function. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89396 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-19 21:45:22 +00:00
Dan Gohman
2a0fab118f Comparing a pointer with null is not a capture. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89389 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-19 21:34:07 +00:00
Jakob Stoklund Olesen
160069d15a Place new basic blocks immediately after their predecessor when splitting 
critical edges in PHIElimination.

This has a huge impact on regalloc performance, and we recover almost all of
the 10% compile time regression that edge splitting introduced.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89381 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-19 19:42:16 +00:00
Bill Wendling
fb7634f1c7 Reverting the EH table patches. 
$ svn merge -c -89279 https://llvm.org/svn/llvm-project/llvm/trunk
--- Reverse-merging r89279 into '.':
U    lib/CodeGen/AsmPrinter/DwarfException.cpp
U    lib/Target/TargetLoweringObjectFile.cpp
$ svn merge -c -89270 https://llvm.org/svn/llvm-project/llvm/trunk
--- Reverse-merging r89270 into '.':
G    lib/CodeGen/AsmPrinter/DwarfException.cpp
G    lib/Target/TargetLoweringObjectFile.cpp



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89379 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-19 19:21:09 +00:00
Johnny Chen
5c376ff9f0 Added NLdStLN which is similar to NLdSt with the exception that op7_4 is not 
fully specified at this level.  Subclasses of NLdStLN can specify selective
bit(s) for Inst{7-4}, as is done for VLD[234]LN* and VST[234]LN* inside
ARMInstrNEON.td.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89377 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-19 19:20:17 +00:00
David Greene
feb5bfbc6b Fix a small bug. 
Fix one case we missed to make sure we reserve registers from
allocation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89376 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-19 19:09:39 +00:00
Dan Gohman
dab249b3b7 Enable hoisting of loads from constant memory by default. In cases where 
they are lowered to instruction sequences more complex than a simple
load, such that CodeGen cannot rematerialize them, a reload from a
spill slot is likely to be cheaper than the complex sequence.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89374 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-19 19:00:10 +00:00
Daniel Dunbar
58ce7acb4f Use StringRef::min instead of std::min. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89372 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-19 18:53:18 +00:00
Jim Grosbach
dec6de92d1 fix typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89369 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-19 18:23:19 +00:00
Mikhail Glushenkov
eeebecfcb4 Trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89364 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-19 17:29:36 +00:00
Dan Gohman
57474fa0f6 Fix a typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89360 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-19 16:35:11 +00:00
David Greene
7cfd336af6 Add support for spreading register allocation. 
Add a -linearscan-skip-count argument (default to 0) that tells the
allocator to remember the last N registers it allocated and skip them
when looking for a register candidate.  This tends to spread out
register usage and free up post-allocation scheduling at the cost of
slightly more register pressure.  The primary benefit is the ability
to backschedule reloads.

This is turned off by default.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89356 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-19 15:55:49 +00:00
Benjamin Kramer
ac07b3df3e Unbreak x64 MSVC build. Patch by Nicolas Capens! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89341 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-19 12:17:31 +00:00
Edward O'Callaghan
cc9fa81fe1 Add PS3 Triple class, Credit to John Thompson. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89339 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-19 11:59:00 +00:00
Evan Cheng
ed54de40a7 80 col violation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89337 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-19 08:16:50 +00:00
Evan Cheng
2ef9c8a43d More consistent thumb1 asm printing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89328 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-19 06:57:41 +00:00
Evan Cheng
5b397c93a5 Shrink ldr / str [sp, imm0-1024] to 16-bit instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89326 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-19 06:32:27 +00:00
Evan Cheng
a64ce45917 Eliminate more * 4 in Thumb1 asm printing for consistency sake. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89325 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-19 06:31:26 +00:00
Bruno Cardoso Lopes
2045c47aff - Add sugregister logic to handle f64=(f32,f32). 
- Support mips1 like load/store of doubles:

Instead of:
  sdc $f0, X($3)
Generate:
  swc $f0, X($3)
  swc $f1, X+4($3)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89322 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-19 06:06:13 +00:00
Bruno Cardoso Lopes
0046de0550 Only use small sections for non linux targets! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89316 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-19 05:28:18 +00:00
Lang Hames
835ca07991 Added a new Spiller implementation which wraps LiveIntervals::addIntervalsForSpills. 
All spiller calls in RegAllocLinearScan now go through the new Spiller interface.
The "-new-spill-framework" command line option has been removed. To use the trivial in-place spiller you should now pass "-spiller=trivial -rewriter=trivial".
(Note the trivial spiller/rewriter are only meant to serve as examples of the new in-place modification work. Enabling them will yield terrible, though hopefully functional, code).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89311 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-19 04:15:33 +00:00
Jim Grosbach
97200e4dd4 Teach IVUsers to keep things simpler and track loop-invariant strides only 
for uses inside the loop. This works better with LSR. Disabled behind
-simplify-iv-users while benchmarking.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89299 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-19 02:05:44 +00:00
Jim Grosbach
d0b552cc56 Eliminate duplicate phi nodes in loops. Loop rotation, for example, can introduce these, and it's beneficial to later passes to clean them up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89298 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-19 02:03:18 +00:00
Jim Grosbach
20f4d34fe3 Make EliminateDuplicatePHINodes() available as a utility function 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89297 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-19 02:02:10 +00:00
Bill Wendling
01c69374b5 The "ReadOnlyWithRel" enum seems to apply more to what Darwin does with the EH 
exception table than DataRel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89279 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-19 00:09:14 +00:00
Bob Wilson
fbb6b67df0 There should be no need to keep renumbering blocks during tail duplication. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89275 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-18 23:48:57 +00:00
Richard Osborne
bea7df56ce Add XCore support for indirectbr / blockaddress. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89273 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-18 23:20:42 +00:00
Bill Wendling
ec04458551 Attempt #2: 
Place the EH table in the __TEXT section on MachO. It saves space.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89270 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-18 23:18:46 +00:00
Bob Wilson
60f34b9fb0 Tail duplication still needs to iterate. Duplicating new instructions onto 
the tail of a block may make that block a new candidate for duplication.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89264 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-18 22:52:37 +00:00
Bob Wilson
79d621035e Add another statistic to measure code size due to tail duplication. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89254 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-18 22:12:31 +00:00
Jakob Stoklund Olesen
0b25ae1afb Fix PR5300. 
When TwoAddressInstructionPass deletes a dead instruction, make sure that all
register kills are accounted for. The 2-addr register does not get special
treatment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89246 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-18 21:33:35 +00:00
Jakob Stoklund Olesen
8f16e02fc9 Allow the machine verifier to be run outside the PassManager. 
Verify LiveVariables information when present.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89241 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-18 20:36:57 +00:00
Jakob Stoklund Olesen
1e78aa445c Remove the -early-coalescing option 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89240 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-18 20:36:47 +00:00
Lang Hames
38283e23df Fixed the in-place spiller and trivial rewriter, which had been broken by the recent SlotIndexes work. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89238 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-18 20:31:20 +00:00
Viktor Kutuzov
e823db8bae Added getDefaultSubtargetFeatures method to SubtargetFeatures class which returns a correct feature string for given triple. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89236 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-18 20:20:05 +00:00
Bob Wilson
7cd5d3e05c Add statistics for tail duplication. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89225 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-18 19:29:37 +00:00
David Goodwin
ebb5cb9216 Add ARMv6 itineraries. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89218 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-18 18:39:57 +00:00
Bob Wilson
a3003004aa Fix a few places that were missed when we converted to unified syntax. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89214 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-18 18:10:35 +00:00
Jakob Stoklund Olesen
0257dd375d Don't require LiveVariables for PHIElimination. Enable critical edge splitting 
when LiveVariables is available.

The -split-phi-edges is now gone, and so is the hack to disable it when using
the local register allocator. The PHIElimination pass no longer has
LiveVariables as a prerequisite - that is what broke the local allocator.
Instead we do critical edge splitting when possible - that is when
LiveVariables is available.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89213 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-18 18:01:35 +00:00
Nick Lewycky
b5106f5c33 Fix passing of float arguments through ffi. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89198 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-18 05:43:15 +00:00
Bob Wilson
834b08af8d Add a target hook to allow changing the tail duplication limit based on the 
contents of the block to be duplicated.  Use this for ARM Cortex A8/9 to
be more aggressive tail duplicating indirect branches, since it makes it
much more likely that they will be predicted in the branch target buffer.
Testcase coming soon.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89187 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-18 03:34:27 +00:00
Bill Wendling
5eea342673 The llvm-gcc front-end and the pass manager use two separate TargetData objects. 
This is probably not confined to *just* these two things.

Anyway, the llvm-gcc front-end may look up the structure layout information for
an abstract type. That information will be stored into a table with the FE's
TD. Instruction combine can come along and also ask for information on that
abstract type, but for a separate TD (the one associated with the pass manager).

After the type is refined, the old structure layout information in the pass
manager's TD file is out of date. If a new type is allocated in the same space
as the old-unrefined type, then the structure type information in the pass
manager's TD file will be wrong, but won't know it.

Fix this by making the TD's structure type information an abstract type user.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89176 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-18 01:03:56 +00:00
Dan Gohman
3dbb9e64d6 Simplify ComputeMultiple so that it doesn't depend on TargetData. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89175 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-18 00:58:27 +00:00
Jakob Stoklund Olesen
5052c1547e Fix inverted test and add testcase from failing self-host. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89167 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-18 00:02:18 +00:00
Devang Patel
427ef4e35f Remove dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89156 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 22:39:08 +00:00
Eric Christopher
88b5aca20a Add ability to set code model within the execution engine builders 
and creation interfaces.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89151 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 21:58:16 +00:00
Jim Grosbach
5023095799 grammar 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89145 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 21:37:04 +00:00
Jim Grosbach
f04777b945 Enable arm jumpt table adjustment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89143 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 21:24:11 +00:00
Jakob Stoklund Olesen
202344e124 Disable -split-phi-edges to unbreak the buildbots 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89142 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 21:23:49 +00:00
Jakob Stoklund Olesen
5493acac6f Never call UpdateTerminator() when AnalyzeBranch would fail. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89139 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 20:46:00 +00:00
Anton Korobeynikov
bce3dbd9be Both Darwin as and GNU as violate ARM docs wrt printing of addrmode6 
alignment imm (in the same way). Fix asmprinting for non-darwin platforms.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89137 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 20:04:59 +00:00
Evan Cheng
2a085c3493 Add a WriteAsOperand for MachineBasicBlock so MachineLoopInfo dump looks sane. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89130 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 19:19:59 +00:00
Evan Cheng
7adcdc313f Fix comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89129 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 19:19:01 +00:00
Jakob Stoklund Olesen
95a2c8f1d0 Enable -split-phi-edges by default, except when -regalloc=local. 
The local register allocator doesn't like it when LiveVariables is run.
We should also disable edge splitting under -O0, but that has to wait a bit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89125 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 19:15:50 +00:00
Jim Grosbach
464ecfee71 80-column violations 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89123 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 19:05:35 +00:00
Viktor Kutuzov
51cdac02c4 Added getArchNameForAssembler method to the Triple class for which returns OS and Vendor independent target assembler arch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89122 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 18:48:27 +00:00
Bob Wilson
aa60ddac39 Remove a special case for tail merging that seems to be both broken and 
unnecessary.  It is broken because the "isIdenticalTo" check should be
negated.  If that is fixed, this code causes the CodeGen/X86/tail-opts.ll
test to fail, in the dont_merge_oddly function.  And, I confirmed that the
regression is real -- the generated code is worse.  As far as I can tell,
that tail-opts.ll test is checking for what this code is supposed to handle
and we're doing the right thing anyway.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89121 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 18:30:09 +00:00
Evan Cheng
076e085698 Generalize OptimizeLoopTermCond to optimize more loop terminating icmp to use postinc iv. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89116 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 18:10:11 +00:00
Dan Gohman
37d60fd142 Set MadeChange instead of MadeChangeThisIteration. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89114 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 18:04:15 +00:00
Benjamin Kramer
110e7bb25c Revert CPU detection code to return "generic" instead of an empty string in case 
of failure. The x86 target didn't like empty cpu names and broke x86 tests on
non-x86 buildbots.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89111 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 17:57:04 +00:00
Jim Grosbach
56a1f806af Remove trailing whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89110 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 17:53:56 +00:00
Bob Wilson
465c8252f2 Update a comment, now that tail duplication happens after other branch 
folding optimizations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89109 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 17:40:31 +00:00
Johnny Chen
a9ea9ec194 Set Inst{15-12} (Rd/Rt) to 0b1111 (PC) for BR_JTadd, BR_JTr, and BR_JTm to 
distinguish between them and the more generic instructions (add, mov, and ldr).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89108 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 17:17:50 +00:00
Bob Wilson
56ea69c3a2 Perform tail duplication only once, after tail merging is complete. 
It was too difficult to keep the heuristics for merging and duplication
consistent.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89105 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 17:06:18 +00:00
Evan Cheng
9e97f3c2e2 Revert 89021. It's miscompiling llvm-gcc driver driver at -O0. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89082 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 09:55:52 +00:00
Evan Cheng
d15ac2fce3 Re-apply 89011. It's not to be blamed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89081 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 09:51:18 +00:00
Evan Cheng
6db07eac95 Revert 89011. Buildbot thinks it might be breaking stuff. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89076 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 09:20:28 +00:00
Nick Lewycky
381afae68f Remove VISIBILITY_HIDDEN from the classes in this directory. Fixes bug 5507. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89075 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 09:17:08 +00:00
Nick Lewycky
5f9843f68f Revert r88939. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89066 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 08:11:44 +00:00
Nick Lewycky
0e49fe8140 Fail less mysteriously; inform the user that their LLVM was not built with 
libffi support and that the interpreter can't call external functions without
it. Patch by Timo Juhani Lindfors! Fixes PR5466.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89062 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 07:52:09 +00:00
Owen Anderson
252e574924 Fix a race condition in the Timer class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89056 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 07:06:10 +00:00
Bill Wendling
7378b1bd00 Refactor the code that creates the "dot-label" difference. This may be used in 
more than one place. No intended functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89024 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 01:23:53 +00:00
Jim Grosbach
a0a95a3c1c When moving a block for table jumps, make sure the prior block terminator 
is analyzable so it can be updated. If it's not, be safe and don't move the
block.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89022 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 01:21:04 +00:00
Jakob Stoklund Olesen
2cbe71cdf0 Enable -split-phi-edges by default 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89021 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 01:07:22 +00:00
Evan Cheng
6cccc30679 MOV64rm should be marked isReMaterializable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89019 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 00:55:55 +00:00
Dan Gohman
e0f06c78d3 Remove the optimizations that convert BRCOND and BR_CC into 
unconditional branches or fallthroghes. Instcombine/SimplifyCFG
should be simplifying branches with known conditions.

This fixes some problems caused by these transformations not
updating the MachineBasicBlock CFG.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89017 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 00:47:23 +00:00
Devang Patel
76e3e50b8a Remove debug info attached with an instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89016 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 00:47:06 +00:00
Jeffrey Yasskin
dc1472b6d9 In GlobalVariable::setInitializer, assert that the initializer has the 
right type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89014 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 00:43:13 +00:00
Evan Cheng
574186f8ad A few more instructions that should be marked re-materializable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89011 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-17 00:23:22 +00:00
Johnny Chen
9d52e8db8a Set Rm bits of BX_RET to 0b1110 (R14); and set condition code bits of BRIND to 
0b1110 (ALways).  This is so that the disassembler decoder can distinguish among
BX_RET, BRIND, and BXr9.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89000 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 23:57:56 +00:00
Dan Gohman
834651c945 Initialize the new AsmPrinterFlags field to 0, fixing uses of 
uninitialized memory.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88985 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 22:49:38 +00:00
Jeffrey Yasskin
d1ba06bf13 Make X86-64 in the Large model always emit 64-bit calls. 
The large code model is documented at
http://www.x86-64.org/documentation/abi.pdf and says that calls should
assume their target doesn't live within the 32-bit pc-relative offset
that fits in the call instruction.

To do this, we turn off the global-address->target-global-address
conversion in X86TargetLowering::LowerCall(). The first attempt at
this broke the lazy JIT because it can separate the movabs(imm->reg)
from the actual call instruction. The lazy JIT receives the address of
the movabs as a relocation and needs to record the return address from
the call; and then when that call happens, it needs to patch the
movabs with the newly-compiled target. We could thread the call
instruction into the relocation and record the movabs<->call mapping
explicitly, but that seems to require at least as much new
complication in the code generator as this change.

To fix this, we make lazy functions _always_ go through a call
stub. You'd think we'd only have to force lazy calls through a stub on
difficult platforms, but that turns out to break indirect calls
through a function pointer. The right fix for that is to distinguish
between calls and address-of operations on uncompiled functions, but
that's complex enough to leave for someone else to do.

Another attempt at this defined a new CALL64i pseudo-instruction,
which expanded to a 2-instruction sequence in the assembly output and
was special-cased in the X86CodeEmitter's emitInstruction()
function. That broke indirect calls in the same way as above.

This patch also removes a hack forcing Darwin to the small code model.
Without far-call-stubs, the small code model requires things of the
JITMemoryManager that the DefaultJITMemoryManager can't provide.

Thanks to echristo for lots of testing!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88984 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 22:41:33 +00:00
Evan Cheng
600c043697 - Check memoperand alignment instead of checking stack alignment. Most load / store folding instructions are not referencing spill stack slots. 
- Mark MOVUPSrm re-materializable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88974 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 21:56:03 +00:00
Devang Patel
f76a3d634f Revert r88939. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88973 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 21:53:40 +00:00
David Greene
f941d29077 Fix an expensive-checks error. 
The Mask and LHSMask may not be of the same size, so don't do the
transformation if they're different.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88972 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 21:52:23 +00:00
Jim Grosbach
7bde297133 Make the pass class name more explicit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88964 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 21:13:22 +00:00
Jim Grosbach
074fb0252d make pass name a bit more clear 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88961 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 21:03:58 +00:00
Dan Gohman
6ac0e76ff4 Sink a #include <map> to where it's actually needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88956 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 20:40:47 +00:00
Dan Gohman
552c0dff34 Fix a typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88953 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 20:35:59 +00:00
Bob Wilson
4a504c6ff8 Fix a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88940 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 19:33:27 +00:00
Devang Patel
270a97430d Add VISIBILITY_HIDDEN marker. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88939 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 19:20:48 +00:00
Jim Grosbach
08cbda56b6 Simplify thumb2 jump table adjustments. Remove unnecessary calculation and 
usage of block sizes and offsets.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88935 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 18:58:52 +00:00
Jim Grosbach
9249efe4c7 clarify comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88933 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 18:55:47 +00:00
Bob Wilson
c4a0c843e4 Fix some comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88932 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 18:54:08 +00:00
Bob Wilson
d34f5d91bc Whitespace: be consistent with pointer syntax. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88929 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 18:08:46 +00:00
Bob Wilson
3cbc312087 Clean up whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88927 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 17:56:13 +00:00
Jim Grosbach
b2e86bb142 back off for a bit. tracking down weirdness 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88919 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 17:17:48 +00:00
Jim Grosbach
ca215e7804 Analyze has to be before checking the condition, obviously. Properly construct an iterator for prior. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88917 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 17:10:56 +00:00
David Greene
ddff941357 Support spill comments. 
Have the asm printer emit a comment if an instruction is a spill or
reload and have the spiller mark copies it introdues so the asm printer
can also annotate those.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88911 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 15:12:23 +00:00
Duncan Sands
46785e68b8 BuildIntCast takes an additional parameter, isSigned. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88910 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 13:15:28 +00:00
Duncan Sands
f63c41033a CreateIntCast takes an "isSigned" parameter. Pass "true" for it, rather than 
a name.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88908 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 12:32:28 +00:00
Evan Cheng
746d546877 Special case FixedStackPseudoSourceValueVal as well. Do we really need to differentiate PseudoSourceValueVal from FixedStackPseudoSourceValueVal at this level? 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88902 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 07:10:36 +00:00
Evan Cheng
39aa7251a2 Check if subreg index is zero. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88899 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 06:31:49 +00:00
Evan Cheng
285a7d57dc For some targets, a copy can use a register multiple times, e.g. ppc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88895 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 05:52:06 +00:00
Bruno Cardoso Lopes
add2076c06 Disable ldc1/sdc1 instructions for mips1 targets. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88887 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 04:35:29 +00:00
Bruno Cardoso Lopes
6e0b658dad - Fix a small bug while handling target constant pools (one param was missing). 
- Add a smarter constant pool loading, instead of:

lui $2, %hi($CPI1_0)
addiu $2, $2, %lo($CPI1_0)
lwc1 $f0, 0($2)

Generate:

lui $2, %hi($CPI1_0)
lwc1 $f0, %lo($CPI1_0)($2)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88886 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 04:33:42 +00:00
Chris Lattner
d6add155a7 typo spotted by duncan. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88884 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 03:51:42 +00:00
Lang Hames
79ac32de3b Fixes the bug exposed by Anton's test case in PR 5495: 
Make sure when ProcessImplicitDefs removes a copy which kills its source reg that it
removes the copy from said reg's Kills list.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88881 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 02:07:31 +00:00
Lang Hames
b126d0530d Fix for the original bug in PR5495 - Look at uses as well as defs when determining the PHI-copy insert point. 
- Patch by Andrew Canis!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88880 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 02:00:09 +00:00
Jim Grosbach
a44321776e Detect need for autoalignment of the stack earlier to catch spills more 
conservatively. eliminateFrameIndex() machinery adjust to handle addr mode
6 (vld1/vst1) used for spills. Fix tests to expect aligned Q-reg spilling

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88874 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-15 21:45:34 +00:00
Jim Grosbach
6cb6788b79 set the def of the VLD1q64 properly 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88873 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-15 21:05:07 +00:00
Chris Lattner
800c47ec10 teach LVI to infer edge information from switch instructions. 
This allows JT to eliminate a ton of infeasible edges when
handling code like the templates in PatternMatch.h


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88869 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-15 20:02:12 +00:00
Chris Lattner
5553a3a510 fix a logic error that would cause LVI-JT to miscompile 
some conditionals


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88868 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-15 20:01:24 +00:00
Chris Lattner
e5642812d3 implement the first stab at caching queries. This isn't correct 
(because the invalidation logic is missing) but LVI isn't enabled
by default anyway.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88867 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-15 20:00:52 +00:00
Chris Lattner
2c5adf832a refactor a bunch of code forming the new LazyValueInfoCache 
and LVIQuery classes, no functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88866 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-15 19:59:49 +00:00
Chris Lattner
4e447ebc58 make PRE of loads preserve the alignment of the moved load instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88865 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-15 19:58:31 +00:00
Chris Lattner
1fb5630474 fix a bug handling 'not x' when x is undef. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88864 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-15 19:57:43 +00:00
Nick Lewycky
93f9f7a440 Add a complex missed optimization opportunity I came across while investigating 
bug 5438.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88855 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-15 17:51:23 +00:00
Edward O'Callaghan
e0fb75d586 Add PSP OS Target to Triple, Credit to Bruno Cardoso Lopes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88849 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-15 10:18:17 +00:00
Nick Lewycky
feb8018764 Revert r88830 and r88831 which appear to have caused a selfhost buildbot some 
grief. I suspect this patch merely exposed a bug else.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88841 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-15 07:47:32 +00:00
Nick Lewycky
df772f257f Teach instcombine to look for booleans in wider integers when it encounters a 
zext(icmp). It may be able to optimize that away. This fixes one of the cases
in PR5438.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88830 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-15 05:55:17 +00:00
Lang Hames
e98b4b0695 Added an assert to the PBQP allocator to catch infinite cost solutions which might otherwise lead to miscompilations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88829 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-15 04:39:51 +00:00
Daniel Dunbar
bfa0929583 Remove bogus corei7 and atom entries, the family was incorrect. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88818 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 22:04:42 +00:00
Daniel Dunbar
a7ac3cee8f Fill out X86 table, although we are missing lots of names for things. We now 
properly detect my Xeon box though.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88814 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 21:36:19 +00:00
Daniel Dunbar
ba43e0785b Report the detected host CPU in --version. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88813 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 21:36:07 +00:00
Jim Grosbach
9c477f54f3 cleanup. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88812 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 21:33:37 +00:00
Jim Grosbach
c04cae9c9b Do not merge jump tables this early. Branch folding will do any necessary 
merges, and until then, it's useful to keep the tables separate for ease
of manipulation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88806 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 20:15:03 +00:00
Jim Grosbach
00a6a1f022 Cleanup flow, and only update the jump table we're analyzing when replacing a destination MBB. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88805 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 20:10:18 +00:00
Jim Grosbach
68bb60f6a4 Add function to replace a destination MBB in a single jump table 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88804 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 20:09:13 +00:00
Richard Osborne
13c4fabf99 Add XCore support for arbitrary-sized aggregate returns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88802 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 19:33:35 +00:00
Anton Korobeynikov
b23f3aa270 Temporary disable the error - it seems to be too conservative. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88800 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 18:01:41 +00:00
Benjamin Kramer
f2a39bd24f Implement DISABLE_INLINE for MSVC. This required changing the position in all 
forward declaration and patching tblgen to emit it right. Patch by Amine Khaldi!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88798 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 16:37:18 +00:00
Daniel Dunbar
067d024b05 Add llvm::sys::getHostCPUName, for detecting the LLVM name for the host CPU. 
- This is an initial step towards -march=native support in Clang, and towards
   eliminating host dependencies in the targets. See PR5389.

 - Patch by Roman Divacky!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88768 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 10:09:12 +00:00
Nick Lewycky
e79fddedca Remove LLVMContext from reassociate. It was threaded through every function but 
ultimately never used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88763 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 07:25:54 +00:00
Sanjiv Gupta
9a501cf19d revert 88761 as it fails builds. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88762 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 07:22:25 +00:00
Sanjiv Gupta
6fb01a7750 Fix debug info crashes for PIC16. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88761 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 06:19:49 +00:00
Nick Lewycky
20162ac566 Teach BasicAA that a constant expression can't alias memory provably not 
allocated until runtime (such as an alloca). Patch by Hans Wennborg!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88760 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 06:15:14 +00:00
Evan Cheng
fae3e92345 Added getSubRegIndex(A,B) that returns subreg index of A to B. Use it to replace broken code in VirtRegRewriter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88753 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 03:42:17 +00:00
Evan Cheng
d57cdd5683 - Change TargetInstrInfo::reMaterialize to pass in TargetRegisterInfo. 
- If destination is a physical register and it has a subreg index, use the
  sub-register instead.
This fixes PR5423.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88745 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 02:55:43 +00:00
Dan Gohman
4ec01b268e Add an option for running GVN with redundant load processing disabled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88742 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 02:27:51 +00:00
Evan Cheng
8fdd84cfa7 Fix PR5412: Fix an inverted check and another missing sub-register check. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88738 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 02:09:09 +00:00
Dan Gohman
ed9bab3b4d Enable the tail call optimization when the caller returns undef. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88737 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 02:06:30 +00:00
Evan Cheng
0cd22dd738 When expanding t2STRDi8 r, r to two stores, add kill markers correctly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88734 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 01:50:00 +00:00
Jakob Stoklund Olesen
3b6ced1510 Fix bug in -split-phi-edges. 
When splitting an edge after a machine basic block with fall-through, we
forgot to insert a jump instruction. Fix this by calling updateTerminator() on
the fall-through block when relevant.

Also be more precise in PHIElimination::isLiveIn.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88728 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 00:38:13 +00:00
Jakob Stoklund Olesen
9aebb61daf Update MachineDominator information 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88727 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 00:38:06 +00:00
Lang Hames
b3661585c0 Added an API to the SlotIndexes pass to allow new instructions to be inserted into the numbering. 
PreAllocSplitting is now using this API to insert code.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88725 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-14 00:02:51 +00:00
Evan Cheng
1f6a3c820a Fix PR5411. Bug in UpdateKills. A reg def partially define its super-registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88719 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 23:16:41 +00:00
Eric Christopher
2b1ffeea28 Remove extraneous commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88716 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 23:08:47 +00:00
Eric Christopher
04458e404f Print out something, even if it's non-parseable later when we've 
got ghost linkage. It's better than aborting.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88715 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 23:00:14 +00:00
Jakob Stoklund Olesen
1222287543 Fix PHIElimination optimization that uses MBB->getBasicBlock. 
The BasicBlock associated with a MachineBasicBlock does not necessarily
correspond to the code in the MBB.

Don't insert a new IR BasicBlock when splitting critical edges. We are not
supposed to modify the IR during codegen, and we should be able to do just
fine with a NULL BB.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88707 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 21:56:15 +00:00
Jakob Stoklund Olesen
ce727d0da0 Add MachineFunction::verify() to call the machine code verifier directly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88706 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 21:56:09 +00:00
Jakob Stoklund Olesen
52cd548525 The instruction pointer %RIP is a reserved register on x86_64. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88705 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 21:56:01 +00:00
Jakob Stoklund Olesen
1dc0fcbaed Fix polarity of a CFG check in machine verifier. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88704 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 21:55:54 +00:00
Dan Gohman
24f8e29b4e Use .data() instead of .c_str() when nul-termination is not needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88703 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 21:55:31 +00:00
David Greene
1924aabf99 Move DebugInfo checks into EmitComments and remove them from 
target-specific AsmPrinters.  Not all comments need DebugInfo.

Re-enable the line numbers comment test.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88697 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 21:34:57 +00:00
Dan Gohman
c4c550c758 When optimizing for size, don't tail-merge unless it's likely to be a 
code-size win, and not when it's only likely to be code-size neutral,
such as when only a single instruction would be eliminated and a new
branch would be required.

This fixes rdar://7392894.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88692 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 21:02:15 +00:00
Evan Cheng
236490d870 Fix PR5410: LiveVariables lost subreg def: 
D0<def,dead> = ...
...
             = S0<use, kill>
S0<def>      = ...
...
D0<def>      = 

The first D0 def is correctly marked dead, however, livevariables should have
added an implicit def of S0 or we end up with a use without a def.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88690 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 20:36:40 +00:00
David Goodwin
87d21b92fc Allow target to specify regclass for which antideps will only be broken along the critical path. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88682 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 19:52:48 +00:00
Bruno Cardoso Lopes
a8173b934f Support fp64 immediate zero, this fixes only part of PR5445 
because the testcase is triggering one more bug.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88674 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 18:49:59 +00:00
Dan Gohman
01205a80f5 Don't let a noalias difference disrupt the tailcall optimization. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88672 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 18:49:38 +00:00
Rafael Espindola
20fd4ec8c5 Distinguish "a," from "a". The first one splits into "a" + "" and the second one into 
"a" + 0.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87084 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 04:55:09 +00:00
Devang Patel
3ddf70442f Revert r87059 for now. It is failing clang tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87070 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 02:27:33 +00:00
Devang Patel
3fb6bd690a Ignore nameless variables. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87069 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 02:25:26 +00:00
Rafael Espindola
c78c0c99a0 Switch to smallvector. Also fix issue with using unsigend for MaxSplit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87068 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 02:18:25 +00:00
Dale Johannesen
1e608819aa Adjust isConstantSplat to allow for big-endian targets. 
PPC is such a target; make it work.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87060 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 01:45:18 +00:00
Victor Hernandez
0418c102dd Remove unnecessary llvm.dbg.declare bitcast 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87059 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 01:44:55 +00:00
Rafael Espindola
5ccac24726 Add a new split method to StringRef that puts the substrings in a vector. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87058 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 01:24:40 +00:00
Jim Grosbach
c1a07be185 Block renumbering 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87056 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 01:19:24 +00:00
Jim Grosbach
f4cbc0e421 use lower case for readability 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87054 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 01:17:22 +00:00
David Greene
dda3978d78 Fix a bootstrap failure. 
Provide special isLoadFromStackSlotPostFE and isStoreToStackSlotPostFE
interfaces to explicitly request checking for post-frame ptr elimination
operands.  This uses a heuristic so it isn't reliable for correctness.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87047 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-13 00:29:53 +00:00
Owen Anderson
98538b4bea Re-enable this code, since redundant PHIs are now being better nuked. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87042 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-12 23:22:41 +00:00
Bill Wendling
ecc260e403 Simplify code a bit 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87040 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-12 23:13:08 +00:00