NAKAMURA Takumi [Fri, 29 Apr 2011 09:59:12 +0000 (09:59 +0000)]
docs/doxygen.css: Tweak padding on memdoc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130493
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Francois Pichet [Fri, 29 Apr 2011 08:56:07 +0000 (08:56 +0000)]
Unbreak the MSVC build:
- unistd.h doesn't exist with MSVC
- inline must be __inline in Microsoft C
- atexit cannot take a function declared as void f(), must be void f(void).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130490
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Benjamin Kramer [Fri, 29 Apr 2011 08:41:23 +0000 (08:41 +0000)]
Balance parentheses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130489
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Benjamin Kramer [Fri, 29 Apr 2011 08:15:41 +0000 (08:15 +0000)]
InstCombine: turn (C1 << A) << C2) into (C1 << C2) << A)
Fixes PR9809.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130485
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Chris Lattner [Fri, 29 Apr 2011 05:40:18 +0000 (05:40 +0000)]
clean up after Sean's r127646 patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130475
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Chris Lattner [Fri, 29 Apr 2011 05:24:29 +0000 (05:24 +0000)]
use the MachineInstrBuilder operator-> to simplify some code.
There are probably more instances of this floating around.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130474
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Chris Lattner [Fri, 29 Apr 2011 05:24:07 +0000 (05:24 +0000)]
add a missing operator that caused us to have to use (*MIB).foo everywhere.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130473
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Rafael Espindola [Fri, 29 Apr 2011 03:06:29 +0000 (03:06 +0000)]
Last bit by bit compatibility patch to MCDwarf.cpp: If a FDE with no LSDA is
assigned to a CIE that requires one, just output a 0.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130472
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Rafael Espindola [Fri, 29 Apr 2011 02:42:28 +0000 (02:42 +0000)]
Add an alternative implementation of CIE and FDE emission that outputs them
in the same order as the one in CodeGen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130471
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Nick Lewycky [Fri, 29 Apr 2011 02:12:06 +0000 (02:12 +0000)]
Rename profile_rt.so to libprofile_rt.so under configure+make (it already was
under cmake).
Add libprofile_rt.a so that we can tell clang to link against it in --coverage
mode. Also turn it on by default in cmake builds.
Oscar, this touches a change you made for EXCLUDE_FROM_ALL support -- I think
I've done the right thing, but please let me know (or fix and commit) if not!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130470
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Eric Christopher [Fri, 29 Apr 2011 00:07:20 +0000 (00:07 +0000)]
Update comments and checks to match reality.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130464
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Eric Christopher [Fri, 29 Apr 2011 00:03:10 +0000 (00:03 +0000)]
Whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130463
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Eli Friedman [Thu, 28 Apr 2011 23:55:14 +0000 (23:55 +0000)]
Revert r130454; apparently this doesn't actually work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130462
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Eli Friedman [Thu, 28 Apr 2011 23:12:24 +0000 (23:12 +0000)]
Fix runline.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130455
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Eli Friedman [Thu, 28 Apr 2011 23:03:25 +0000 (23:03 +0000)]
Fix a rather obscure crash caused by ARM fast-isel generating code which redefines a register.
rdar://problem/
9338332 .
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130454
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Devang Patel [Thu, 28 Apr 2011 22:48:14 +0000 (22:48 +0000)]
Preserve line number information.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130450
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Matt Beaumont-Gay [Thu, 28 Apr 2011 22:26:05 +0000 (22:26 +0000)]
Coalesce some DEBUGs (moving an only-used-in-DEBUG variable's declaration into the DEBUG)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130448
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Benjamin Kramer [Thu, 28 Apr 2011 21:38:51 +0000 (21:38 +0000)]
We require threse bits to be zero, too.
This shouldn't happen in practice because the icmp would be a constant.
Add a check so we don't miscompile code if something goes wrong.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130446
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Nick Lewycky [Thu, 28 Apr 2011 21:35:49 +0000 (21:35 +0000)]
Only read *predecessor once so as to fix a theoretical issue where it changes
between two reads (threading).
Fix an off-by-one in the indirect counter table that I meant to revert after an
earlier experiment. Whoops!
Implement GCOV_PREFIX. Doesn't handle GCOV_PREFIX_STRIP yet.
Fix an off-by-one in string emission. Extra whoops!
Tolerate DISubprograms that have null Function*'s attached to them. I don't yet
understand what this means, but it happens when you have a global static with
a non-trivial constructor/destructor.
Fix a crash on switch statements with a single successor (default-only).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130443
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Daniel Dunbar [Thu, 28 Apr 2011 21:23:31 +0000 (21:23 +0000)]
Target/X86/MC: Add an option for disabling arith relaxation, for my own testing
purposes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130438
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Rafael Espindola [Thu, 28 Apr 2011 21:04:39 +0000 (21:04 +0000)]
Add the getExprForFDESymbol method that responsible for computing the
expressions used in the FDE to refer to symbols.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130437
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Devang Patel [Thu, 28 Apr 2011 20:46:18 +0000 (20:46 +0000)]
Beautify debug info probe output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130435
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Ted Kremenek [Thu, 28 Apr 2011 20:34:18 +0000 (20:34 +0000)]
Add MemoryBuffer::getBufferKind() to report whether a memory buffer uses malloc'ed or mmap'ed memory. This is for performance analysis.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130432
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Devang Patel [Thu, 28 Apr 2011 20:32:02 +0000 (20:32 +0000)]
Remove DbgDeclare only if all uses are converted.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130431
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Lenny Maiorani [Thu, 28 Apr 2011 20:20:12 +0000 (20:20 +0000)]
Remove bounded StringRef::compare() since nothing but Clang SA was using it and it is just as easy to use StringRef::substr() preceding StringRef::compare() to achieve the same thing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130430
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Eli Friedman [Thu, 28 Apr 2011 20:19:12 +0000 (20:19 +0000)]
fast-isel sret calls, try 2. We actually do need to do something on x86-32. rdar://problem/
9303592 .
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130429
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Benjamin Kramer [Thu, 28 Apr 2011 20:09:57 +0000 (20:09 +0000)]
Fix a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130428
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Chris Lattner [Thu, 28 Apr 2011 20:02:57 +0000 (20:02 +0000)]
improve comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130426
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Devang Patel [Thu, 28 Apr 2011 18:43:39 +0000 (18:43 +0000)]
Do not lose line number info while eliminating tail call.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130419
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Eli Friedman [Thu, 28 Apr 2011 18:20:24 +0000 (18:20 +0000)]
Actually revert r130348 correctly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130418
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Chris Lattner [Thu, 28 Apr 2011 18:15:47 +0000 (18:15 +0000)]
final step needed to resolve PR6627, which allows us to flatten the code down to
a nice and tidy:
%x1 = load i32* %0, align 4
%1 = icmp eq i32 %x1,
1179403647
br i1 %1, label %if.then, label %if.end
instead of doing lots of loads and branches. May the FreeBSD bootloader
long fit in its allocated space.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130416
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Chris Lattner [Thu, 28 Apr 2011 18:08:21 +0000 (18:08 +0000)]
code cleanups only.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130414
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Eli Friedman [Thu, 28 Apr 2011 18:06:10 +0000 (18:06 +0000)]
Revert r130348; causing buildbot issues on x86-32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130412
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Owen Anderson [Thu, 28 Apr 2011 17:51:45 +0000 (17:51 +0000)]
Fix a bug in tblgen that caused incorrect encodings on instructions that specified operands with "bit" instead of "bits<1>".
Unfortunately, my only testcase for this is fragile, and the ARM AsmParser can't round trip the instruction in question.
<rdar://problem/
9345702>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130410
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Devang Patel [Thu, 28 Apr 2011 17:41:38 +0000 (17:41 +0000)]
Add command line option to print debug info in human readable form as comment in llvm IR output. This, i.e -enable-debug-info-comment, is very useful if you want to easily find out which optimization pass is losing line number information.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130409
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Andrew Trick [Thu, 28 Apr 2011 17:30:04 +0000 (17:30 +0000)]
Reapply r130340: Fix for PR9730.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130408
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Benjamin Kramer [Thu, 28 Apr 2011 16:58:40 +0000 (16:58 +0000)]
InstCombine: Merge "(trunc x) == C1 & (and x, CA) == C2" into a single and+icmp.
This happens when GVN widens loads. Part of PR6627.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130405
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Eric Christopher [Thu, 28 Apr 2011 16:52:09 +0000 (16:52 +0000)]
Be more layout aware here and swap the successor and branch condition
if it means we get a fallthrough.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130404
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Chris Lattner [Thu, 28 Apr 2011 16:36:48 +0000 (16:36 +0000)]
centralize "marking for deletion" into a helper function. Pass GVN around to
static functions instead of passing around tons of random ivars.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130403
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Chris Lattner [Thu, 28 Apr 2011 16:18:52 +0000 (16:18 +0000)]
Promote toErase to be an ivar of the GVN class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130401
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Rafael Espindola [Thu, 28 Apr 2011 16:09:09 +0000 (16:09 +0000)]
Add a getExprForPersonalitySymbol method to MCAsmInfo. Use it when
converting the symbol passed to .cfi_personality into bytes is the file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130400
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Rafael Espindola [Thu, 28 Apr 2011 12:50:37 +0000 (12:50 +0000)]
Mark the EH symbol global or weak if the corresponding function is.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130397
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Jay Foad [Thu, 28 Apr 2011 09:12:47 +0000 (09:12 +0000)]
Fix typos in comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130396
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Chandler Carruth [Thu, 28 Apr 2011 08:37:18 +0000 (08:37 +0000)]
Fix the last -Wnon-pod-memset I'm seeing. This is benign, but appears
a bit more sinister as the memset doesn't do what the constructor does.
There seems to be a cleaner solution than a cast here though, instead we
can point the memset destination into the union its actually trying to
clear.
An alternative is to point to the Untyped member of this union. Review
appreciated, and if that is cleaner I'm happy to switch. All of these
should be functionally equivalent to the original code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130395
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Chandler Carruth [Thu, 28 Apr 2011 08:18:22 +0000 (08:18 +0000)]
Revert an unintended commit. Very sorry for this one.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130393
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Chandler Carruth [Thu, 28 Apr 2011 08:17:08 +0000 (08:17 +0000)]
Fix more -Wnon-pod-memset warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130392
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Chandler Carruth [Thu, 28 Apr 2011 08:17:05 +0000 (08:17 +0000)]
nuke gold
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130391
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Chris Lattner [Thu, 28 Apr 2011 07:29:08 +0000 (07:29 +0000)]
teach GVN to widen integer loads when they are overaligned, when doing an
wider load would allow elimination of subsequent loads, and when the wider
load is still a native integer type. This eliminates a ton of loads on
various benchmarks involving struct fields, though it is somewhat hobbled
by clang not being very aggressive about field alignment.
This is yet another step along the way towards resolving PR6627.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130390
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Eric Christopher [Thu, 28 Apr 2011 05:49:04 +0000 (05:49 +0000)]
Let the immediate leaf pattern take transforms and switch the signed
immediate patterns in arm to using the pattern.
Handles rdar://
9299434
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130386
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Chris Lattner [Thu, 28 Apr 2011 05:33:16 +0000 (05:33 +0000)]
move PR9803 to this readme.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130385
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Ted Kremenek [Thu, 28 Apr 2011 04:52:57 +0000 (04:52 +0000)]
Add utility method to DenseMap to return the amount of memory used for its buckets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130382
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Rafael Espindola [Thu, 28 Apr 2011 04:04:14 +0000 (04:04 +0000)]
Add a small temporary hack for producing identical eh_frame sections on OS X.
This removes one of the main advantages of moving eh_frame to MC, but
makes the transition a lot easier to debug (run md5).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130379
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Rafael Espindola [Thu, 28 Apr 2011 03:26:11 +0000 (03:26 +0000)]
Produce the EH_frame# symbols if needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130378
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Rafael Espindola [Thu, 28 Apr 2011 02:46:42 +0000 (02:46 +0000)]
Forward isFunctionEHFrameSymbolPrivate. If it is false, produce the foo.eh
symbols.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130375
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Devang Patel [Thu, 28 Apr 2011 02:22:40 +0000 (02:22 +0000)]
Teach dwarf writer to handle complex address expression for .debug_loc entries.
This fixes clang generated blocks' variables' debug info.
Radar
9279956.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130373
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Chris Lattner [Thu, 28 Apr 2011 00:55:53 +0000 (00:55 +0000)]
silence some -Wnon-pod-memset warnings, since std::pair is not POD.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130364
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Eli Friedman [Thu, 28 Apr 2011 00:42:03 +0000 (00:42 +0000)]
Fix a silly mistake in r130338.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130360
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Justin Holewinski [Thu, 28 Apr 2011 00:19:56 +0000 (00:19 +0000)]
PTX: support for select_cc and fixes for setcc
- expansion of SELECT_CC into SETCC
- force SETCC result type to i1
- custom selection for handling i1 using SETCC
Patch by Dan Bailey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130358
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Justin Holewinski [Thu, 28 Apr 2011 00:19:55 +0000 (00:19 +0000)]
PTX: support for select
- selection of SELP instruction
- new selp.ll test
Patch by Dan Bailey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130357
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Justin Holewinski [Thu, 28 Apr 2011 00:19:54 +0000 (00:19 +0000)]
PTX: mov fix and rounding correction for cvt
- fix typo in MOV
- correct fp rounding on CVT
- new cvt.ll test
Patch by Dan Bailey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130356
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Justin Holewinski [Thu, 28 Apr 2011 00:19:53 +0000 (00:19 +0000)]
PTX: support for fneg
- selection of FNEG instruction
- new fneg.ll test
Patch by Dan Bailey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130355
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Justin Holewinski [Thu, 28 Apr 2011 00:19:52 +0000 (00:19 +0000)]
PTX: support for zext loads and trunc stores
- expansion of EXTLOAD and TRUNCSTORE instructions
Patch by Dan Bailey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130354
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Justin Holewinski [Thu, 28 Apr 2011 00:19:51 +0000 (00:19 +0000)]
PTX: support for bitwise operations on predicates
- selection of bitwise preds (AND, OR, XOR)
- new bitwise.ll test
Patch by Dan Bailey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130353
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Justin Holewinski [Thu, 28 Apr 2011 00:19:50 +0000 (00:19 +0000)]
PTX: patch to AsmPrinter
- immediate value cast as long not int
- handles initializer for constant array
Patch by Dan Bailey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130352
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Andrew Trick [Thu, 28 Apr 2011 00:13:59 +0000 (00:13 +0000)]
Reverting r130340 in the unlikely event that it's responsible for a llvm-gcc stage2 compiler error.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130350
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Eli Friedman [Wed, 27 Apr 2011 23:58:52 +0000 (23:58 +0000)]
fast-isel sret. We actually don't need to do anything special on x86. :) rdar://problem/
9303592 .
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130348
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Johnny Chen [Wed, 27 Apr 2011 23:29:21 +0000 (23:29 +0000)]
Add tests for A8.6.110 NOP.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130345
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Rafael Espindola [Wed, 27 Apr 2011 23:17:57 +0000 (23:17 +0000)]
Remove unnecessary argument.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130343
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Rafael Espindola [Wed, 27 Apr 2011 23:08:15 +0000 (23:08 +0000)]
Rename getPersonalityPICSymbol to getCFIPersonalitySymbol, document it, and
give it a bit more responsibility. Also implement it for MachO.
If hacked to use cfi, 32 bit MachO will produce
.cfi_personality 155, L___gxx_personality_v0$non_lazy_ptr
and 64 bit will produce
.cfi_presonality ___gxx_personality_v0
The general idea is that .cfi_personality gets passed the final symbol. It is
up to codegen to produce it if using indirect representation (like 32 bit
MachO), but it is up to MC to decide which relocations to create.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130341
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Andrew Trick [Wed, 27 Apr 2011 23:00:03 +0000 (23:00 +0000)]
Fixes PR9730: indvars: An asserting value handle still pointed to this value
Modified LinearFunctionTestReplace to push the condition on the dead
list instead of eagerly deleting it. This can cause unnecessary
IV rewrites, which should have no effect on codegen and will not be an
issue once we stop generating canonical IVs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130340
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Devang Patel [Wed, 27 Apr 2011 22:45:24 +0000 (22:45 +0000)]
Simplify handling of variables with complex address (i.e. blocks variables)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130339
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Eli Friedman [Wed, 27 Apr 2011 22:41:55 +0000 (22:41 +0000)]
Make the fast-isel code for literal 0.0 a bit shorter/faster, since 0.0 is common. rdar://problem/
9303592 .
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130338
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Eli Friedman [Wed, 27 Apr 2011 22:21:02 +0000 (22:21 +0000)]
Remove unused function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130337
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NAKAMURA Takumi [Wed, 27 Apr 2011 21:53:35 +0000 (21:53 +0000)]
docs/doxygen.css: Tweak style for readability.
A few styles are brought from http://llvm.org/test-doxygen/api/api.css
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130333
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Rafael Espindola [Wed, 27 Apr 2011 21:29:52 +0000 (21:29 +0000)]
Fix indentation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130331
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Kevin Enderby [Wed, 27 Apr 2011 21:02:27 +0000 (21:02 +0000)]
Fix a bug in the case that there is no add or subtract symbol and the offset
value is zero so it does not add a NULL expr operand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130330
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Dan Gohman [Wed, 27 Apr 2011 20:44:28 +0000 (20:44 +0000)]
Teach BasicAA about arm.neon.vld1 and vst1.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130327
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Devang Patel [Wed, 27 Apr 2011 20:29:27 +0000 (20:29 +0000)]
Revert r130178. It turned out to be not the optimal path to emit complex location expressions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130326
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Evan Cheng [Wed, 27 Apr 2011 19:32:43 +0000 (19:32 +0000)]
If converter was being too cute. It look for root BBs (which don't have
successors) and use inverse depth first search to traverse the BBs. However
that doesn't work when the CFG has infinite loops. Simply do a linear
traversal of all BBs work just fine.
rdar://
9344645
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130324
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Dan Gohman [Wed, 27 Apr 2011 18:39:03 +0000 (18:39 +0000)]
When analyzing functions known to only access argument pointees,
only check arguments with pointer types. Update the documentation
of IntrReadArgMem reflect this.
While here, add support for TBAA tags on intrinsic calls.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130317
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Andrew Trick [Wed, 27 Apr 2011 18:17:36 +0000 (18:17 +0000)]
Corrects an old, old typo in a case that doesn't seem to be reached in practice.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130316
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Devang Patel [Wed, 27 Apr 2011 17:59:27 +0000 (17:59 +0000)]
Simplify cfg inserts a call to trap when unreachable code is detected. Assign DebugLoc to this new trap instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130315
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Jakob Stoklund Olesen [Wed, 27 Apr 2011 17:42:31 +0000 (17:42 +0000)]
Also add <imp-def> operands for defined and dead super-registers when rewriting.
We cannot rely on the <imp-def> operands added by LiveIntervals in all cases as
demonstrated by the test case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130313
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Rafael Espindola [Wed, 27 Apr 2011 15:21:19 +0000 (15:21 +0000)]
Factor a bit of code to MCStreamer::EmitLabel. Keep track of the last
non private symbol. This will be use for handling
foo:
.cfi_startproc
...
On OS X where we have to create a foo.eh symbol.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130305
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Duncan Sands [Wed, 27 Apr 2011 10:55:12 +0000 (10:55 +0000)]
Stop trying to have instcombine preserve LCSSA form: this was not
effective in avoiding recomputation of LCSSA form; the widespread
use of instsimplify (which looks through phi nodes) means it was
not preserving LCSSA form anyway; and instcombine is no longer
scheduled in the middle of the loop passes so this doesn't matter
anymore.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130301
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Andrew Trick [Wed, 27 Apr 2011 05:42:17 +0000 (05:42 +0000)]
Test case and comment for PR9633.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130294
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Nick Lewycky [Wed, 27 Apr 2011 03:22:17 +0000 (03:22 +0000)]
Use static inline to do the right thing when built in C99 mode. Of course,
C89 doesn't have an inline keyword.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130279
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Eli Friedman [Wed, 27 Apr 2011 01:45:07 +0000 (01:45 +0000)]
Refactor out code to fast-isel a memcpy operation with a small constant
length. (I'm planning to use this to implement byval.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130274
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Rafael Espindola [Wed, 27 Apr 2011 01:43:49 +0000 (01:43 +0000)]
Force some values to be absolute and align based on the FDE pointers size. A small
step towards using .cfi_* on OS X.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130273
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Eli Friedman [Wed, 27 Apr 2011 01:34:27 +0000 (01:34 +0000)]
Fix an edge case involving branches in fast-isel on x86.
rdar://problem/
9303306 .
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130272
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Andrew Trick [Wed, 27 Apr 2011 01:21:25 +0000 (01:21 +0000)]
Fix for PR9633 [indvars] Assertion `isa<X>(Val) && "cast<Ty>() argument of incompatible type!"' failed.
Added a type check in ScalarEvolution::computeSCEVAtScope to handle the case in which operands of an
AddRecExpr in the current scope are folded.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130271
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Chris Lattner [Tue, 26 Apr 2011 22:42:01 +0000 (22:42 +0000)]
Enhance memdep to return clobber relation between noalias loads when
an earlier load could be widened to encompass a later load. For example,
if we see:
X = load i8* P, align 4
Y = load i8* (P+3), align 1
and we have a 32-bit native integer type, we can widen the former load
to i32 which then makes the second load redundant. GVN can't actually
do anything with this load/load relation yet, so this isn't testable, but
it is the next step to resolving PR6627, and a fairly general class of
"merge neighboring loads" missed optimizations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130250
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Jakob Stoklund Olesen [Tue, 26 Apr 2011 22:33:12 +0000 (22:33 +0000)]
Add a safe-guard against repeated splitting for some rare cases.
The number of blocks covered by a live range must be strictly decreasing when
splitting, otherwise we can't allow repeated splitting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130249
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Chris Lattner [Tue, 26 Apr 2011 21:53:34 +0000 (21:53 +0000)]
use AA::isMustAlias to simplify some calls.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130248
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Chris Lattner [Tue, 26 Apr 2011 21:50:51 +0000 (21:50 +0000)]
remove support for llvm.invariant.end from memdep. It is a
work-in-progress that is not progressing, and it has issues.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130247
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Evan Cheng [Tue, 26 Apr 2011 21:31:35 +0000 (21:31 +0000)]
Be careful about scheduling nodes above previous calls. It increase usages of
more callee-saved registers and introduce copies. Only allows it if scheduling
a node above calls would end up lessen register pressure.
Call operands also has added ABI restrictions for register allocation, so be
extra careful with hoisting them above calls.
rdar://
9329627
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130245
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Evan Cheng [Tue, 26 Apr 2011 21:09:04 +0000 (21:09 +0000)]
This test should be in MC. It breaks with changes to scheduling / register allocation so it's being removed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130243
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Chris Lattner [Tue, 26 Apr 2011 20:45:33 +0000 (20:45 +0000)]
make a couple of changes to the standard pass pipeline:
1. Only run the early (in the module pass pipe) instcombine/simplifycfg
if the "unit at a time" passes they are cleaning up after runs.
2. Move the "clean up after the unroller" pass to the very end of the
function-level pass pipeline. Loop unroll uses instsimplify now,
so it doesn't create a ton of trash. Moving instcombine later allows
it to clean up after opportunities are exposed by GVN, DSE, etc.
3. Introduce some phase ordering tests for things that are specifically
intended to be simplified by the full optimizer as a whole.
This resolves PR2338, and is progress towards PR6627, which will be
generating code that looks similar to test2.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130241
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Chris Lattner [Tue, 26 Apr 2011 20:18:20 +0000 (20:18 +0000)]
Transform: "icmp eq (trunc (lshr(X, cst1)), cst" to "icmp (and X, mask), cst"
when X has multiple uses. This is useful for exposing secondary optimizations,
but the X86 backend isn't ready for this when X has a single use. For example,
this can disable load folding.
This is inching towards resolving PR6627.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130238
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Chris Lattner [Tue, 26 Apr 2011 20:02:45 +0000 (20:02 +0000)]
some random cleanups, no functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130237
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