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31476 Commits

Author SHA1 Message Date
Daniel Dunbar
425d08c654 Switch raw_svector_ostream to use the vector as the ostream buffer. 
- This avoids unnecessary malloc/free overhead in the common case, and
   unnecessary copying from the ostream buffer into the output vector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79434 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-19 17:54:29 +00:00
Owen Anderson
c34ebf65af Reapply my less-lock-contention-in-leak-detector patch, now with new files 
actually added.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79429 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-19 17:07:46 +00:00
Bob Wilson
de95c1b88b Add support for Neon VEXT (vector extract) shuffles. 
This is derived from a patch by Anton Korzh.  I modified it to recognize
the VEXT shuffles during legalization and lower them to a target-specific
DAG node.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79428 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-19 17:03:43 +00:00
Daniel Dunbar
ecbd0bc478 Speculatively revert r79375, which may be breaking bootstrap, although in a 
rather obscure way (the other candidate is r79377).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79426 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-19 16:25:25 +00:00
David Goodwin
dc4bdcdef1 Use the schedule itinerary operand use/def cycle information to adjust dependence edge latency for post-RA scheduling. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79425 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-19 16:08:58 +00:00
Eli Friedman
d68eea2b6d PR4737: Fix a nasty bug in load narrowing with non-power-of-two types. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79415 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-19 08:46:10 +00:00
Nick Lewycky
08368ce984 Fix up PHI nodes correctly in the presence of unreachable BBs, part two. Also 
delete a newed pointer, and improve readability a little bit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79411 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-19 07:16:57 +00:00
Chris Lattner
6e579c6727 fix asmstreaming of 2/4 byte elements with pow-2 alignments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79408 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-19 06:35:36 +00:00
Nick Lewycky
3417e8f185 Be more careful when modifying PHI nodes. Patch by Andre Tavares. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79407 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-19 06:24:33 +00:00
Chris Lattner
663c2d2580 switch asmprinter to emit alignments through OutStreamer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79406 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-19 06:12:02 +00:00
Chris Lattner
6c2f9e14fd eliminate AsmPrinter::SwitchToSection and just have clients 
talk to the MCStreamer directly instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79405 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-19 05:49:37 +00:00
Andreas Neustifter
0a324aa53a Broke line before break. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79404 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-19 05:44:39 +00:00
Daniel Dunbar
e476004b94 Make a SmallVector size more reasonable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79403 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-19 05:08:06 +00:00
Lang Hames
8481e3b368 Added an option to have the PBQP allocator attempt coalescing during allocation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79397 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-19 01:36:14 +00:00
Owen Anderson
021d664a38 Revert my last patch temporarily. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79388 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-19 00:52:13 +00:00
Owen Anderson
ba43a385a8 Privatize part of the leak detector mechanism, which turned out to be heavily contended 
when trying to run opt in parallel.  This lets parallel opt crunch 403.gcc in about a third
of the time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79387 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-19 00:37:02 +00:00
Daniel Dunbar
ecc67e2e1b raw_ostream: Simplify write(unsigned char) to match write(const char*, unsigned). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79386 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-19 00:23:39 +00:00
Daniel Dunbar
d29d497b53 raw_ostream: Remove pointless redefinitions of tell(). 
- The base class implementation is correct.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79385 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-19 00:14:25 +00:00
Dan Gohman
107f41fad5 Fix SimplifyLibcalls and ValueTracking to check mayBeOverridden 
before performing optimizations based on constant string values.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79384 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-19 00:11:12 +00:00
Dan Gohman
2c9489d6e9 Be tidy and use a break to exit from a switch block rather than 
just falling through the end.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79383 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 23:52:48 +00:00
Daniel Dunbar
906d5b4455 raw_ostream: Add the capability for subclasses to manually install an external 
buffer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79382 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 23:42:36 +00:00
Dan Gohman
db8dc2b9fa Legalize the shift amount operand of SRL_PARTS, SHL_PARTS, and 
SRA_PARTS, as is done for SRL, SHL, and SRA.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79380 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 23:36:17 +00:00
Daniel Dunbar
ab81027544 raw_ostream: Reduce FormattedStream's reliance on raw_ostream's implementation. 
- Kill off begin(), end(), and iterator. It isn't clear what these
   mean. Instead provide getBufferStart(), which can be used with
   GetNumBytesInBuffer to the same effect.

 - Update ComputeColumn to take arguments for the buffer to scan, this
   simplifies the implementation of write_impl substantially.

 - This should also fix possible problems with the scanning pointer pointing
   outside of the current raw_ostream buffer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79379 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 23:36:04 +00:00
Lang Hames
233fd9cea0 Changes DOUT references in the PBQP allocator to use DEBUG(errs() ...) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79378 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 23:34:50 +00:00
Eric Christopher
b120ab4057 Implement sse4.2 string/text processing instructions: 
Add patterns and instruction encoding information.
Add custom lowering to deal with hardwired return register of
uncertain type (xmm0).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79377 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 22:50:32 +00:00
Daniel Dunbar
3b3de924f5 Speed up raw_ostream::<<(unsigned long long) for 32-bit systems by doing most 
div/mods in 32-bits.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79375 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 22:24:00 +00:00
Jakob Stoklund Olesen
c0823fe7c6 Simplify RegScavenger::FindUnusedReg. 
- Drop the Candidates argument and fix all callers. Now that RegScavenger
  tracks available registers accurately, there is no need to restict the
  search.
- Make sure that no aliases of the found register are in use. This was a potential bug.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79369 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 21:14:54 +00:00
Richard Osborne
1123135dbf Add support for mergeable sections back into the XCore backend. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79368 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 21:14:31 +00:00
Dan Gohman
3731604f1f Fix a bug in raw_ostream::write(char) introduced by the change to 
allow underlying stream classes to decline buffering. After
calling SetBuffered(), re-check whether the stream is Unbuffered
in order to handle the case where the underlying stream has
declined buffering.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79362 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 20:09:59 +00:00
Daniel Dunbar
35979c021e Revert r78924, disabling buffering defeats all the fast paths in raw_ostream. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79361 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 20:07:36 +00:00
Daniel Dunbar
651aa689cc Improve Triple to recognize the OS in i386-mingw32. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79359 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 19:26:55 +00:00
David Greene
fe37ab335b Make various changes suggested by Chris. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79358 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 19:22:55 +00:00
Owen Anderson
4d91943889 Privatize the ValueHandle global map. Because this is used so heavily throughout the code base, locking all accesses to 
it is not practical performance-wise.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79355 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 18:28:58 +00:00
Erick Tryzelaar
f8bc801c6c Fix an uninitialized value warning in APFloat. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79353 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 18:20:37 +00:00
Richard Osborne
a9e8334877 Put data with relocations in the same sections as data without relocations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79351 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 17:58:17 +00:00
Chris Lattner
35c3531754 fix COFF targets (mingw/cygwin) to provide ehframe and LSDA sections 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79346 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 16:56:17 +00:00
Dan Gohman
c40f17b087 Generalize ScalarEvolution to be able to analyze GEPs when 
TargetData is not present. It still uses TargetData when available.
This generalization also fixed some limitations in the TargetData
case; the attached testcase covers this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79344 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 16:46:41 +00:00
Chris Lattner
4d35fce60c null streamer needs to maintain the current section as well. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79343 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 16:46:29 +00:00
Dan Gohman
da65822cfc Make tail merging handle blocks with repeated predecessors correctly, and 
remove RemoveDuplicateSuccessor, as it is no longer necessary, and because
it breaks assumptions made in
MachineBasicBlock::isOnlyReachableByFallthrough.

Convert test/CodeGen/X86/omit-label.ll to FileCheck and add a testcase
for PR4732.

test/CodeGen/Thumb2/thumb2-ifcvt2.ll sees a diff with this commit due to
it being bugpoint-reduced to the point where it doesn't matter what the
condition for the branch is.

Add some more interesting code to
test/CodeGen/X86/2009-08-06-branchfolder-crash.ll, which is the testcase
that originally motivated the RemoveDuplicateSuccessor code, to help
verify that the original problem isn't being re-broken.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79338 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 15:18:18 +00:00
Dan Gohman
6874a2ae03 Fix a bug that caused globalopt to miscompile tramp3d: don't miss 
unruly indices for arrays that are members of structs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79337 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 14:58:19 +00:00
Anton Korobeynikov
848c293962 Text sections should have 'exec' flag set. This seems to unbreak libstdc++ on linux. 
Patch by Dmitry Gorbachev!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79334 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 14:06:12 +00:00
Daniel Dunbar
b26bc42a2c Fix Triple to recognize the 'bfin' arch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79325 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 07:06:26 +00:00
Chris Lattner
dabf07c70a Make AsmStreamer maintain a notion of the current section, pushing it up from the 
MCAsmStreamer.  Based on this, eliminate the current section from AsmPrinter.

While I'm at it, clean up the last of the horrible "switch to null section" stuff
and add an assert.  This change is in preparation for completely eliminating 
asmprinter::switchtosection.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79324 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 06:15:16 +00:00
Chris Lattner
6a66e585b8 add a horrible hack to the dwarf printer. It looks like mingw is not specifying 
an EHFrame section, so we just emit ehframe data into a random section.

This is clearly bad.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79323 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 06:13:03 +00:00
Chris Lattner
090d73c6bd remove some pointless null switchtosections. The IntelAsmPrinter doesn't really work anyway. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79321 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 06:03:07 +00:00
Evan Cheng
51f39961c3 Fix revsh pattern. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79318 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 05:43:23 +00:00
Chris Lattner
79e6408ad3 add support for some targetflags on GV operands. This allows us to 
send instructions like:

NEW: 	movl	"L___stack_chk_guard$non_lazy_ptr" - "L1$pb"(%esi), %eax
OLD: 	movl	L___stack_chk_guard$non_lazy_ptr-"L1$pb"(%esi), %eax

through the streamer.  Several fixmes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79317 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 05:33:27 +00:00
Daniel Dunbar
2447389bac Recognize xscale as an ARM arch. 
- Patch by Yonggang Luo.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79315 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 04:51:26 +00:00
Daniel Dunbar
fdb0b7b555 Add Triple matching for pic16 arch and solaris OS. 
- Patch by Yonggang Luo.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79314 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 04:43:27 +00:00
Chris Lattner
1f50fc736e fix another bozo bug 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79313 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 04:34:36 +00:00
Chris Lattner
b49a30c109 fix accidentally inverted conditional and add comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79312 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 04:33:15 +00:00
Chris Lattner
a006d4e60d turn this conditional into something humans might actually 
be able to understand ;-)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79311 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 04:30:35 +00:00
Dan Gohman
8942f9bb9f Make TargetData optional in MemCpyOptimizer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79306 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 01:17:52 +00:00
Dan Gohman
f14d919742 Make TargetData optional in SimplifyLibCalls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79298 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 00:48:13 +00:00
Anton Korobeynikov
e55db74152 The attached patches attempt to fix cross builds. For example, if you 
try to use i686-darwin to build for arm-eabi, you'll quickly run into
several false assumptions that the target OS must be the same as the
host OS. These patches split $(OS) into $(HOST_OS) and $(TARGET_OS) to
help builds like "make check" and the test-suite able to cross
compile. Along the way a target of *-unknown-eabi is defined as
"Freestanding" so that TARGET_OS checks have something to work with.

Patch by Sandeep Patel!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79296 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 00:40:33 +00:00
Dan Gohman
25103a2617 Fix function alignment at -Os on x86 to be 1, not 2. getFunctionAlignment 
returns a log2 value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79293 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 00:20:06 +00:00
Dale Johannesen
5cfd4ddece PowerPC inline asm was emitting two output operands 
for a single "m" constraint; this is wrong because the
opcode of a load or store would have to change in parallel.
This patch makes it always compute addresses into a register,
which is correct but not as efficient as possible.  7144566.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79292 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-18 00:18:39 +00:00
Devang Patel
4b49cd298a Add prefix only if it is needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79289 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-17 23:17:17 +00:00
Jim Grosbach
606f3d696f cleanups per review. Mostly cosmetic, plus use SmallVector in place of std::vector. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79287 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-17 21:40:03 +00:00
Devang Patel
4c77dfa20c Oops. find all llvm.dbg.global_variables. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79274 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-17 20:36:20 +00:00
Jim Grosbach
2962664227 Remove a bit more cruft from the sjlj moving to a backend pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79272 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-17 20:25:04 +00:00
Benjamin Kramer
ae68a19ef9 Update CMakeLists. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79264 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-17 18:47:11 +00:00
Dan Gohman
d802f7e290 Update comments to new-style syntax. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79263 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-17 18:45:31 +00:00
Daniel Dunbar
5d17eddb0c Fix build warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79262 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-17 18:41:42 +00:00
Owen Anderson
7b7b102023 Privatize the last bits of static type state. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79258 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-17 17:59:35 +00:00
Owen Anderson
36a3eb0aaa Move the TypeMap lock to a member on LLVMContextImpl. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79256 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-17 17:34:27 +00:00
Owen Anderson
596c1dc3e2 Add locking around the attributes list. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79255 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-17 17:10:58 +00:00
Owen Anderson
6ae8c73aca Add locking around signal handler registration. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79254 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-17 17:07:22 +00:00
Benjamin Kramer
76d5ccf6af Clear the uniquing table when initializing TLOF to avoid a crash when the TLOF is reinitialized with a different MCContext. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79253 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-17 17:05:44 +00:00
Nick Lewycky
a10e89f372 Don't crash on critical edge. Patch by Andre Tavares. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79252 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-17 17:00:57 +00:00
Jim Grosbach
8b818d7e98 Move the sjlj exception handling conversions to a back-end pass where they 
more properly belong. This allows removing the front-end conditionalized
SJLJ code, and cleans up the generated IR considerably. All of the
infrastructure code (calling _Unwind_SjLj_Register/Unregister, etc) is
added by the SjLjEHPrepare pass.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79250 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-17 16:41:22 +00:00
Richard Osborne
2a5e23b44d Update getSectionForConstant() to to allow mergable sections to be nulled out 
if not supported by the ELF subtarget.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79249 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-17 16:37:11 +00:00
David Goodwin
fac8541dd4 Extend the instruction itinerary model to include the ability to indicate the def and use cycle for each operand. This additional information is optional, so existing itineraries do not need to be changed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79247 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-17 16:02:57 +00:00
Chris Lattner
8f4b1ec02b the MinPad argument to PadToColumn only really makes sense to be 1, 
just remove the argument and replace it with 1.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79246 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-17 15:48:08 +00:00
Dan Gohman
094ae454e8 Fix more missing newlines. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79244 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-17 15:29:31 +00:00
Dan Gohman
48cc73d9c7 Fix printing of instructions with null operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79243 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-17 15:28:08 +00:00
Dan Gohman
e04853ca78 Always print at least one space before adding a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79242 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-17 15:27:30 +00:00
Dan Gohman
8732577230 Fix debug output to include a newline after printing a Value, now 
that Value's operator<< doesn't include one.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79240 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-17 15:25:05 +00:00
Duncan Sands
fa6a1cf1ed Don't access the first element of a potentially empty 
vector (&Formals[0]).  With this change llvm-gcc builds
with expensive checking enabled for C, C++ and Fortran.
While there, change a std::vector into a SmallVector.
This is partly gratuitous, but mostly because not all
STL vector implementations define the data method (and
it should be faster).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79237 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-17 14:33:27 +00:00
Chris Lattner
975780bb59 change AsmPrinter to switch sections using AsmStreamer instead of 
doing it directly.  This requires const'izing a bunch of stuff that
took sections, but this seems like the right semantic thing to do:
emitting a label to a section shouldn't mutate the MCSection object
itself, for example.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79227 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-17 05:49:08 +00:00
Nick Lewycky
d3aa25e2a8 Don't crash trying to promote VLAs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79226 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-17 05:37:31 +00:00
Chris Lattner
f3ce009fcb give MCAsmStreamer a TargetAsmInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79222 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-17 04:23:44 +00:00
Chris Lattner
46a947d8c1 formatting cleanups, no functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79221 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-17 04:17:34 +00:00
Erick Tryzelaar
e0a1bf64c9 Expose creating constant ints and floats from strings in llvm-c. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79213 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-16 23:36:46 +00:00
Erick Tryzelaar
0e81f660db Add helper functions to ConstantInt and ConstantFP to accept strings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79212 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-16 23:36:33 +00:00
Erick Tryzelaar
a15d890c34 Modify APFloat to take a StringRef instead of a c string. 
This also adds unit tests to APFloat that mainly tests the
string handling of APFloat, but not much else of it's api.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79210 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-16 23:36:19 +00:00
Dan Gohman
3778f21b17 Add a getOffsetOf, for building a target-independent expression for 
offsetof, similar to getSizeOf for sizeof.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79208 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-16 21:26:11 +00:00
Dan Gohman
face41a4de Avoid emitting XMM save code in soft-float or no-implicit-float mode 
or some other situation where no xmm registers need to be saved.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79207 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-16 21:24:25 +00:00
Dan Gohman
e646d043b0 Delete an unused field. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79206 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-16 21:19:53 +00:00
Jakob Stoklund Olesen
66a39699fb Replace RegScavenger::DistanceMap with a simpler local algorithm. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79195 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-16 17:41:39 +00:00
Jakob Stoklund Olesen
e689ce626c Clean up the public interface of RegScavenger. 
Remove unused methods and make others private.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79194 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-16 17:41:20 +00:00
Jakob Stoklund Olesen
f7e8af925c Be more clever about regclasses in ScheduleDAGSDNodes::EmitCopyFromReg. 
If two uses of a CopyFromReg want different regclasses, first try a common
sub-class, then fall back on the copy emitted in AddRegisterOperand. There is
no need for an assert here. The cross-class joiner usually cleans up nicely.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79193 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-16 17:40:59 +00:00
Benjamin Kramer
9ae7d44d95 Fix use after free in Thumb2SizeReduction (PR4707). A MachineInstr was used after erasure. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79189 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-16 11:56:42 +00:00
Bill Wendling
80c76436fe Styalistic and format changes. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79187 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-16 11:00:26 +00:00
Chris Lattner
9b60e04b65 add support for external symbols + X86::MOVPC32r. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79175 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-16 04:28:14 +00:00
Eli Friedman
12bb766ae9 Fix for PR3016: detect the tricky case, where there are 
unfoldable references to a PHI node in the block being folded, and disable
the transformation in that case.  The correct transformation of such PHI
nodes depends on whether BB dominates Succ, and dominance is expensive 
to compute here.  (Alternatively, it's possible to check whether any 
uses are live, but that's also essentially a dominance calculation. 
Another alternative is to use reg2mem, but it probably isn't a good idea to
use that in simplifycfg.)

Also, remove some incorrect code from CanPropagatePredecessorsForPHIs 
which is made unnecessary with this patch: it didn't consider the case 
where a PHI node in BB has multiple uses.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79174 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-16 04:23:49 +00:00
Chris Lattner
30c74a2429 implement support for lowering references to global addresses. For example, we now 
can asmprint:

NEW: 	movl	"L___stack_chk_guard$non_lazy_ptr", %eax
OLD: 	movl	L___stack_chk_guard$non_lazy_ptr, %eax

where 'new' is coming out of the MCInst version of the printer.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79170 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-16 03:12:25 +00:00
Chris Lattner
f5af556c18 more formatting improvements, no functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79167 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-16 02:45:18 +00:00
Chris Lattner
d8638babf9 code formatting improvements, no functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79165 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-16 02:36:40 +00:00
Erick Tryzelaar
5c1c208296 Add an llvm-c function that lets you insert an instruction with a name. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79163 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-08-16 02:20:57 +00:00