Commit Graph

63422 Commits

Author SHA1 Message Date
Jakob Stoklund Olesen e7709ebb64 Add basic verification of LiveIntervals.
We verify that the LiveInterval is live at uses and defs, and that all
instructions have a SlotIndex.

Stuff we don't check yet:

- Is the LiveInterval minimal?
- Do all defs correspond to instructions or phis?
- Do all defs dominate all their live ranges?
- Are all live ranges continually reachable from their def?

llvm-svn: 110386
2010-08-05 22:32:21 +00:00
Eric Christopher d7d0517cc2 Remove unnecessary include.
llvm-svn: 110385
2010-08-05 22:28:22 +00:00
Owen Anderson 4674dd6cf5 Give JumpThreading+LVI a long-form cl::opt so that it's easier to toggle the default.
llvm-svn: 110384
2010-08-05 22:11:31 +00:00
Owen Anderson c3a1413ea1 Split the tag and value members of LVILatticeVal in preparation for expanding the lattice to something that won't fit in two bits.
llvm-svn: 110383
2010-08-05 22:10:46 +00:00
Dan Gohman 26ef7c7ab7 Fix memdep's code for reasoning about dependences between two calls. A Ref
response from getModRefInfo is not useful here. Instead, check for identical
calls only in the NoModRef case.

Reapply r110270, and strengthen it to compensate for the memdep changes.
When both calls are readonly, there is no dependence between them.

llvm-svn: 110382
2010-08-05 22:09:15 +00:00
Gabor Greif 638c823211 remove the private hack from CallInst, it was not supposed to hit the branch anyway
as a positive consequence the CallSite::getCallee() methods now can be rewritten to be
a bit more efficient

llvm-svn: 110380
2010-08-05 21:25:49 +00:00
Owen Anderson d3c94af142 Give ConstantRange an operator=
llvm-svn: 110376
2010-08-05 20:51:10 +00:00
Eric Christopher fa5d2415b6 Document results of PR7762.
llvm-svn: 110373
2010-08-05 20:38:39 +00:00
Devang Patel cc3f3b341d Move x86 specific tests into test/CodeGen/X86.
llvm-svn: 110372
2010-08-05 20:25:37 +00:00
Eric Christopher 4d9c3400f3 Handle the memory barrier pseudo that goes to nothing for the JIT.
llvm-svn: 110371
2010-08-05 20:04:36 +00:00
Eric Christopher 7fd06eb8ce Set hasSideEffects on the 64-bit no-sse memory barrier.
llvm-svn: 110369
2010-08-05 19:54:59 +00:00
Jim Grosbach f50693d1ab For local variables in functions with a frame pointer, use FP as a base
register for local access when it's closer to the stack slot being refererenced
than the stack pointer. Make sure to take into account any argument frame
SP adjustments that are in affect at the time.

rdar://8256090

llvm-svn: 110366
2010-08-05 19:27:37 +00:00
Bob Wilson b1021395b8 Fix indentation.
llvm-svn: 110363
2010-08-05 19:00:21 +00:00
Jakob Stoklund Olesen 4583355a78 Remove double-def checking from MachineVerifier, so a register does not have to
be killed before being redefined.

These checks are usually disabled, and usually fail when enabled. We de facto
allow live registers to be redefined without a kill, the corresponding
assertions in RegScavenger were removed long ago.

llvm-svn: 110362
2010-08-05 18:59:59 +00:00
Bob Wilson 72de307116 Add an ARM RSCrr instruction for disassembly only.
Partial fix for PR7792.

llvm-svn: 110361
2010-08-05 18:59:36 +00:00
Eric Christopher 32f5d6b9be Be a little bit more specific about target for the memory barrier
instructions.

llvm-svn: 110360
2010-08-05 18:36:20 +00:00
Eric Christopher 4abffad17c Handle the pseudo in MCInstLower.
llvm-svn: 110359
2010-08-05 18:34:30 +00:00
Bob Wilson adb93e56a3 Add an ARM RSBrr instruction for disassembly only.
Partial fix for PR7792.

llvm-svn: 110358
2010-08-05 18:23:43 +00:00
Jakob Stoklund Olesen d9572619e2 Avoid using a live std::multimap iterator while editing the map. It looks like
we sometimes compare singular iterators, reported by ENABLE_EXPENSIVE_CHECKS.
This fixes PR7825.

llvm-svn: 110355
2010-08-05 18:12:19 +00:00
Dan Gohman c53ee449a5 Move x86-specific tests out of test/Transforms/LoopStrengthReduce and
into test/CodeGen/X86, so that they aren't run when the x86 target is
not enabled.

Fix uglygep.ll to not be x86-specific.

llvm-svn: 110343
2010-08-05 17:04:15 +00:00
Bob Wilson 824edeb842 Revert bugpoint change due to buildbot breakage.
--- Reverse-merging r110333 into '.':
U    tools/bugpoint/BugDriver.h
U    tools/bugpoint/OptimizerDriver.cpp
U    tools/bugpoint/bugpoint.cpp
U    tools/bugpoint/BugDriver.cpp

llvm-svn: 110341
2010-08-05 16:26:32 +00:00
Daniel Dunbar e62e664656 tests: CodeGen/X86/GC tests require X86.
llvm-svn: 110338
2010-08-05 15:45:33 +00:00
Daniel Dunbar 57e3f71538 tests: Mark MC/AsmParser tests as requiring x86 for now -- almost all of them
rely on using a specific x86 triple to test what they want to test.

llvm-svn: 110337
2010-08-05 15:44:15 +00:00
Rafael Espindola 86d7095eac Run opt instead of bugpoint itself.
Fixes PR753.

llvm-svn: 110333
2010-08-05 15:25:38 +00:00
Rafael Espindola 5bca58a290 check-lit was failing again on F13 64 bits :-(
llvm-svn: 110311
2010-08-05 03:35:01 +00:00
Chandler Carruth e6ca1cfef7 Silence a GCC warning about && and || without explicit parentheses. This
preserves the existing behavior, as it seems a concious choice to allow RS to
be null and BigStack marked true.

llvm-svn: 110307
2010-08-05 03:04:21 +00:00
Rafael Espindola d1c7ef4ab5 Add const to compileProgram and to the various test functions in CrashDebugger.
llvm-svn: 110306
2010-08-05 03:00:22 +00:00
Oscar Fuentes fc21c3aa32 When building from git, add ref-id to PACKAGE_VERSION
llvm-svn: 110301
2010-08-05 02:22:51 +00:00
Rafael Espindola 37302eadca Add a Module argument to the remaining runPasses methods and mark getContext
const.

llvm-svn: 110300
2010-08-05 02:16:32 +00:00
Oscar Fuentes 396cc7d477 New system for choosing CRT type on MSVC.
Is setted on a per build type basis. This is useful for generators
that comprise several build types, i.e. VC++ solutions.

llvm-svn: 110296
2010-08-05 01:25:48 +00:00
Dan Gohman 554b012f67 Revert r110270 for now. It appears to uncover a memdep bug.
llvm-svn: 110293
2010-08-05 00:43:10 +00:00
Bob Wilson 97886d59d1 ARM "rrx" shift operands do not have an immediate. PR7790.
llvm-svn: 110292
2010-08-05 00:34:42 +00:00
Rafael Espindola 315190b28c Make EmitProgressBitcode const and add a Module argument to runPasses. Use
that argument to simplify runPassesOn.

llvm-svn: 110291
2010-08-05 00:29:04 +00:00
Dan Gohman 109561845b The trouble with testing for "ModRef" and "NoModRef" is that
one is a suffix of the other, and FileCheck accepts superstrings.
Adjust the output to avoid this problem.

llvm-svn: 110280
2010-08-04 23:37:55 +00:00
Bill Wendling ca1cb13646 The lower invoke pass needs to have unreachable code elimination run after it
because it could create such things. This fixes a MingW buildbot test failure.

llvm-svn: 110279
2010-08-04 23:36:02 +00:00
Dan Gohman a1c0f8b5c8 Delete obsolete comments.
llvm-svn: 110277
2010-08-04 23:08:15 +00:00
Eric Christopher 2db8464282 Make x86-64 membarriers work without sse and clean up some of the
uses.

llvm-svn: 110274
2010-08-04 23:03:04 +00:00
Dan Gohman bd33dab633 The two-callsite form of AliasAnalysis::getModRefInfo is documented
to return Ref if the left callsite only reads memory read or written
by the right callsite; fix BasicAliasAnalysis to implement this.

Add AliasAnalysisEvaluator support for testing the two-callsite
form of getModRefInfo.

llvm-svn: 110270
2010-08-04 22:56:29 +00:00
Jim Grosbach 8aaadea8ef and back in. false alarm on the tests from another unrelated local change.
llvm-svn: 110269
2010-08-04 22:46:09 +00:00
Eli Friedman 39d0f57cab PR7814: Truncates cannot be ignored for signed comparisons.
llvm-svn: 110268
2010-08-04 22:40:58 +00:00
Devang Patel a52ddc496a Implement target specific getDebugValueLocation().
llvm-svn: 110267
2010-08-04 22:39:39 +00:00
Jakob Stoklund Olesen 7fd4905f08 Coalesce stack slot accesses that arise when spilling both sides of a COPY.
This helps avoid silly code:

    %R0<def = LOAD <fi#5>
    STORE <fi#5>, %R0<kill>

llvm-svn: 110266
2010-08-04 22:35:11 +00:00
Jim Grosbach 8732d966e1 oops. revert for a moment to clean up tests first.
llvm-svn: 110259
2010-08-04 22:12:43 +00:00
Jim Grosbach 22be317fe4 Reserve a stack slot if the function adjusts the stack but doesn't
simplify the call frame pseudo instructions. In that situation, the
calculations for estimating the stack size will be way off, leading to
not having an emergency spill slot when we need one. It should be possible
to be more precise about tracking the adjustment values, but not really
necessary for correctness. Upcoming cleanups for PEI in general will
render that moot.

llvm-svn: 110258
2010-08-04 22:10:15 +00:00
Jakob Stoklund Olesen dc96e28d70 Checkpoint SplitKit progress.
We are now at a point where we can split around simple single-entry, single-exit
loops, although still with some bugs.

llvm-svn: 110257
2010-08-04 22:08:39 +00:00
Devang Patel 6e9a979414 Implement target specific getDebugValueLocation().
llvm-svn: 110256
2010-08-04 22:07:50 +00:00
Devang Patel 6c378ac473 Use location entry only of the location described by DBG_VALUE is valid.
llvm-svn: 110255
2010-08-04 22:07:27 +00:00
Stuart Hastings 49af1ebf2e Test case for r110250. Radar 8264670. Test case by Fariborz Jahanian!
llvm-svn: 110254
2010-08-04 22:05:38 +00:00
Bill Wendling 26feb849a4 Testcase for r110248.
llvm-svn: 110249
2010-08-04 21:56:30 +00:00
Bill Wendling b87f3e5a7d The EH prepare passes really want to be the last passes run before code-gen.
llvm-svn: 110248
2010-08-04 21:44:13 +00:00
Torok Edwin 31e90d2dd1 Use indirect calls in PowerPC JIT.
See PR5201. There is no way to know if direct calls will be within the allowed
range for BL. Hence emit all calls as indirect when in JIT mode.
Without this long-running applications will fail to JIT on PowerPC with a
relocation failure.

llvm-svn: 110246
2010-08-04 20:47:44 +00:00
Devang Patel 6d21f61b3f Fix typo in comment.
llvm-svn: 110244
2010-08-04 20:32:36 +00:00
Dan Gohman db764c6e3b Fix a minor bug which resulted in intermediate calculations
using wider types than are necessary.

llvm-svn: 110241
2010-08-04 19:52:50 +00:00
Dan Gohman 2392287306 Change this llvm_unreachable to report_fatal_error, since it can
be triggered by valid, if dubious, IR.

llvm-svn: 110240
2010-08-04 18:51:09 +00:00
Devang Patel 5c1f56b78f Test case for combination of r110234 & r110235.
llvm-svn: 110238
2010-08-04 18:42:46 +00:00
Devang Patel d71bc1ae4e While spilling live registers at the end of block check whether they are used by DBG_VALUE machine instructions or not. If a spilled register is used by DBG_VALUE machine instruction then insert a new DBG_VALUE machine instruction to encode variable's new location on stack.
llvm-svn: 110235
2010-08-04 18:42:02 +00:00
Devang Patel 0e60e67efb If a variable is spilled by code generator then use DW_OP_fbreg to describe its location on stack.
llvm-svn: 110234
2010-08-04 18:40:52 +00:00
Owen Anderson 9f2bca02d7 Experiments show that we can safely increase our unrolling threshold without unduly impacting code size, particularly
since unrolling is not enabled at -Os.

llvm-svn: 110233
2010-08-04 18:32:46 +00:00
Owen Anderson f16eb37b54 Add a note about the changing pass registration interface.
llvm-svn: 110231
2010-08-04 18:27:08 +00:00
Dale Johannesen 21f13209f8 Remove switch for disabling ARM tail calls. They
seem to be working correctly.  No functional change.

llvm-svn: 110226
2010-08-04 18:07:17 +00:00
Devang Patel 2bf0f3ceff Add DEBUG message.
llvm-svn: 110224
2010-08-04 18:06:05 +00:00
Dan Gohman ba81fc16a5 Fix whitespace.
llvm-svn: 110223
2010-08-04 17:43:57 +00:00
Dan Gohman 1bcc697c2a Update the polygen grammar for linker_private and linker_private_weak,
and add comments about major implemented features.

llvm-svn: 110215
2010-08-04 17:01:59 +00:00
Dan Gohman a3ed071166 Fix a typo in a comment.
llvm-svn: 110211
2010-08-04 16:48:36 +00:00
Dan Gohman 988bfce174 Print a message when a test failure is due to stderr output
alone, rather than just an exit code.

llvm-svn: 110208
2010-08-04 16:42:38 +00:00
Dan Gohman de75469cd8 Remove CVS artifacts.
llvm-svn: 110207
2010-08-04 16:25:01 +00:00
Dan Gohman ccb6156a0f Remove CVS artifacts.
llvm-svn: 110206
2010-08-04 16:11:24 +00:00
Dan Gohman 1a41e6e0ce Delete scripts which haven't noticed that CVS has gone away.
llvm-svn: 110205
2010-08-04 16:10:42 +00:00
Dan Gohman b3f5c6e795 cvsupdate is gone.
llvm-svn: 110204
2010-08-04 16:09:01 +00:00
Dan Gohman 67c0212353 Delete mkpatch. Everything it does is already done by svn diff by default.
llvm-svn: 110203
2010-08-04 16:07:22 +00:00
Dan Gohman 852287332a Remove a link which is no longer relevant.
llvm-svn: 110202
2010-08-04 15:59:16 +00:00
Dan Gohman 6786a04d0d These tests are no longer stored in *CVS*.
llvm-svn: 110201
2010-08-04 15:58:01 +00:00
Benjamin Kramer a53a4eefa6 Enable COFF writer on mingw32 and cygwin.
llvm-svn: 110200
2010-08-04 15:32:40 +00:00
Stuart Hastings cba0d06b7c call-imm.ll test case regex fix. Patch by Dimitry Andric!
llvm-svn: 110199
2010-08-04 15:31:35 +00:00
Kalle Raiskila 8b2f70125f Make SPU backend handle insertelement and
store for "half vectors"

llvm-svn: 110198
2010-08-04 13:59:48 +00:00
Benjamin Kramer 61c8e6dc16 Print an error message when someone tries -integrated-as on an unsupported target.
- The COFF backend doesn't support MingW/Cygwin at the moment, it'll report an
  error, but it's still much better than random assertions from the MachO backend.
- We want to make ELF the default eventually, it's what the majority of targets use.

llvm-svn: 110197
2010-08-04 13:16:30 +00:00
Torok Edwin e6f478f795 Note some LLVM 2.7 -> 2.8 APIs that changed / got renamed.
I encountered these while upgrading libclamav.

llvm-svn: 110196
2010-08-04 12:43:22 +00:00
Torok Edwin bfc17d0157 Add a missing function.
llvm-svn: 110195
2010-08-04 11:42:45 +00:00
Gabor Greif 94ab490260 by Alexander Herz:
"The CWriter::GetValueName() method does not check if a value as an alias 
and emits the alias name which will never be defined in the output .c 
file (so the output file fails to compile). This can happen if you have 
multiple inheritance with several destructors defined by clang (...D0Ev, 
...D1Ev, ...D2Ev)."

-- applied with minor tweaks. Thanks!

llvm-svn: 110194
2010-08-04 10:00:52 +00:00
Torok Edwin 6b43ea117f Fix build of DataFlow.h
llvm-svn: 110193
2010-08-04 09:30:20 +00:00
Dan Gohman 5cae103392 Eliminate unnecessary empty string literals.
llvm-svn: 110183
2010-08-04 01:39:08 +00:00
Dan Gohman 839c972102 Fix a comment.
llvm-svn: 110181
2010-08-04 01:16:35 +00:00
Dan Gohman f77b735376 Don't construct a std::string with a literal "".
llvm-svn: 110180
2010-08-04 01:14:33 +00:00
Dan Gohman 47053d972b Don't print the filename twice in file-not-found errors.
llvm-svn: 110179
2010-08-04 01:13:48 +00:00
Bruno Cardoso Lopes b8f0d52731 Fix a comment typo and add more 256-bit intrinsics
llvm-svn: 110177
2010-08-04 01:09:40 +00:00
Dan Gohman 4f9c40c521 Change the logic which interprets output on stderr as an error so that
it doesn't modify the exit code or the stdout contents, and so that it
doesn't clutter the output with "Command has output on stderr!".

llvm-svn: 110171
2010-08-04 00:12:31 +00:00
Bob Wilson 79daf7e0ae Combine NEON VABD (absolute difference) intrinsics with ADDs to make VABA
(absolute difference with accumulate) intrinsics.  Radar 8228576.

llvm-svn: 110170
2010-08-04 00:12:08 +00:00
Dan Gohman 794172ca9c Don't print "Command output (stdout):" when the command has no output,
and same for stderr, to avoid clutter in the output.

llvm-svn: 110169
2010-08-04 00:05:16 +00:00
Dan Gohman c70c6b144a Use the regular conditional operator syntax instead of a clever hack.
llvm-svn: 110168
2010-08-04 00:00:13 +00:00
Dan Gohman fc419ef6a0 Remove PointerAccessInfo, which nothing was using.
llvm-svn: 110167
2010-08-03 23:08:10 +00:00
Chris Lattner 5fba6db223 Make the makefiles go much faster by using the realpath
builtin instead of shell.  On my 8 core mac pro, this speeds
up a 'make -j8' null build of the lib directory from 1.11s to
0.77s wall time.

Patch by NAKAMURA Takumi!

llvm-svn: 110166
2010-08-03 22:53:22 +00:00
Chris Lattner 53befe7bc1 fix a win64 encoding problem, patch by Cameron Esfahani!
llvm-svn: 110164
2010-08-03 22:49:22 +00:00
Dan Gohman 5442c71f2e Thread const correctness through a bunch of AliasAnalysis interfaces and
eliminate several const_casts.

Make CallSite implicitly convertible to ImmutableCallSite.

Rename the getModRefBehavior for intrinsic IDs to
getIntrinsicModRefBehavior to avoid overload ambiguity with CallSite,
which happens to be implicitly convertible to bool.

llvm-svn: 110155
2010-08-03 21:48:53 +00:00
Nate Begeman b69b182191 Add support for getting & setting the FPSCR application register on ARM when VFP is enabled.
Add support for using the FPSCR in conjunction with the vcvtr instruction, for controlling fp to int rounding.
Add support for the FLT_ROUNDS_ node now that the FPSCR is exposed.

llvm-svn: 110152
2010-08-03 21:31:55 +00:00
Dan Gohman ad867b0aed The singular of "indices" is "index".
llvm-svn: 110135
2010-08-03 20:23:52 +00:00
Dan Gohman 852d6fc50c Delete an unused function.
llvm-svn: 110134
2010-08-03 20:20:56 +00:00
Dan Gohman 3619660529 Make instcombine set explicit alignments on load or store
instructions with alignment 0, so that subsequent passes don't
need to bother checking the TargetData ABI size manually.

llvm-svn: 110128
2010-08-03 18:20:32 +00:00
Oscar Fuentes 371b1b91bf CMake: Change somme target library names:
XCore->XCoreGen
PIC16->PIC16CodeGen

After updating your working copy, the first build will fail because it
is using the old library dependencies. Start the build again and it
will work fine.

llvm-svn: 110127
2010-08-03 17:40:31 +00:00
Oscar Fuentes 052c23cd2f CMake: add version control info to PACKAGE_VERSION, if available.
Adds "svn" or "git", depending on the VCS used. If svn, adds the
revision number as well.

llvm-svn: 110121
2010-08-03 17:28:09 +00:00
Dan Gohman 52f9d7d617 Make AliasAnalysis::getModRefInfo conservative in the face of volatility.
llvm-svn: 110120
2010-08-03 17:27:43 +00:00
Jakob Stoklund Olesen 0c18757c9d Oops. Don't normalize spill weights twice.
When the normalizeSpillWeights function was introduced, I forgot to remove this
normalization.

This change could affect register allocation. Hopefully for the better.

llvm-svn: 110119
2010-08-03 17:21:16 +00:00
Jakob Stoklund Olesen 011ff9bec9 OK, that's it. This test is going away now. But don't worry, I am taking it to a
nice farm in the country where it can play with other tests. And bunnies.

It is not clear what is being tested, and the revision history shows a bunch of
random changes to the expected instruction count. Clearly, we are just fudging
it to pass whenever it fails.

llvm-svn: 110118
2010-08-03 17:21:14 +00:00
Chris Lattner 79102d9725 avoid undefined behavior negating minint.
llvm-svn: 110117
2010-08-03 16:57:03 +00:00
Dan Gohman 081627ceb8 Fix a typo Devang noticed.
llvm-svn: 110115
2010-08-03 16:48:31 +00:00
Chris Lattner 3db3bb0032 avoid undef behavior on minint, fixing PR7783.
llvm-svn: 110114
2010-08-03 16:41:24 +00:00
Peter Collingbourne ddaaf40d24 Add an atomic lowering pass
llvm-svn: 110113
2010-08-03 16:19:16 +00:00
Dan Gohman 35e8a6209d Use unary + instead of a separate local variable for working
around std::min vs static const friction.

llvm-svn: 110112
2010-08-03 16:15:50 +00:00
Oscar Fuentes 758f71af11 Bump cmake_minimum_required to version 2.8
llvm-svn: 110110
2010-08-03 15:07:17 +00:00
Daniel Dunbar edf7b8bd4e build: Add LLVM_NATIVE_ARCHNAME, which has the sensible value, without "Target"
appended.

llvm-svn: 110109
2010-08-03 14:26:17 +00:00
Michael J. Spencer 54cfd42c33 MC: Fix symbol fragment offsets in COFF.
Patch by Cameron Esfahani!

llvm-svn: 110104
2010-08-03 05:02:46 +00:00
Michael J. Spencer d32764c8a0 Revert "MC: Fix symbol fragment offsets in COFF."
This reverts commit r110100

Wrong path caps.

llvm-svn: 110103
2010-08-03 04:53:28 +00:00
Michael J. Spencer a6cfbeb98c MC: Add time travel support to COFF.
llvm-svn: 110101
2010-08-03 04:43:33 +00:00
Michael J. Spencer cf3d8b4ec4 MC: Fix symbol fragment offsets in COFF.
Patch by Cameron Esfahani!

llvm-svn: 110100
2010-08-03 04:43:24 +00:00
Michael J. Spencer 2ce6994211 Fix CMake build
llvm-svn: 110097
2010-08-03 02:38:20 +00:00
Bruno Cardoso Lopes 7492a11f0c Support x86 AVX 256-bit instruction intrinsics. Right now support all of them, but
as soon as we properly codegen the simple vector operations in clang, remove the
unnecessary builti-ins/intrinsics from clang and llvm.

llvm-svn: 110094
2010-08-03 01:53:41 +00:00
Dan Gohman 4887001f81 Update some comments.
llvm-svn: 110092
2010-08-03 01:07:32 +00:00
Dan Gohman 2a190081f6 Introduce a symbolic constant for ~0u for use with AliasAnalysis.
llvm-svn: 110091
2010-08-03 01:03:11 +00:00
Dan Gohman da7182e116 Add a convenient form of AliasAnalysis::alias for the case where the sizes
are unknown.

llvm-svn: 110090
2010-08-03 00:56:30 +00:00
Dan Gohman 7cac95778f Make SCEVUnknown a CallbackVH, so that it can be notified directly
of Value deletions and RAUWs, instead of relying on ScalarEvolution's
Scalars map being notified, as that's complicated at best, and
insufficient in general.

This means SCEVUnknown needs a non-trivial destructor, so introduce
a mechanism to allow ScalarEvolution to locate all the SCEVUnknowns.

llvm-svn: 110086
2010-08-02 23:49:30 +00:00
Stuart Hastings 460a356bf6 Diabolical hack to make a test compatible with clang. (Thanks to Dale!) Radar 8246180.
llvm-svn: 110081
2010-08-02 23:29:03 +00:00
Dan Gohman 272980b3f6 Sketch up a preliminary Type-Based Alias Analysis implementation.
llvm-svn: 110077
2010-08-02 23:11:01 +00:00
Dan Gohman 9c6e188f56 Fix visitInvokeInst to call visitTerminatorInst, and remove
a redundant check from checkInstruction.

llvm-svn: 110076
2010-08-02 23:09:14 +00:00
Dan Gohman d0a1e3de3f Add Verifier logic for indirectbr.
llvm-svn: 110075
2010-08-02 23:08:33 +00:00
Dan Gohman d8968da2c5 Add a lint check for indirectbr with no successors.
llvm-svn: 110074
2010-08-02 23:06:43 +00:00
Devang Patel 33a2cdf3f9 Add explicit constructors. Patch by Renato Golin.
llvm-svn: 110072
2010-08-02 22:51:46 +00:00
Stuart Hastings 0e6e8858ff Testcase for r110043. Radar 8246180.
llvm-svn: 110070
2010-08-02 22:09:53 +00:00
Bill Wendling 44dc60ba13 Early exit and reduce indentation. No functionality change.
llvm-svn: 110069
2010-08-02 22:06:08 +00:00
Oscar Fuentes d945ae652a Improve discrimination of unknown libraries from ignored targets on
LLVMConfig.

llvm-svn: 110065
2010-08-02 21:24:12 +00:00
Oscar Fuentes e53004b188 explicit_map_components_to_libraries now does not complain when there
is a dependence on an LLVM target that is not included on the build.

When LLVM_TARGETS_TO_BUILD didn't include all the targets, the
function emitted an error like

"Library LLVMArmParser not found in list of llvm libraries."

llvm-svn: 110060
2010-08-02 20:48:01 +00:00
Oscar Fuentes 30644950d6 Lets the CMake GUI show a list of possible values for LLVM_USE_CRT
Patch by nobled!

llvm-svn: 110057
2010-08-02 19:00:34 +00:00
Dan Gohman abfafadfc7 Fix namespace polution.
llvm-svn: 110056
2010-08-02 18:50:06 +00:00
Oscar Fuentes e4e9e8e6e7 Updated LLVMLibDeps.cmake.
llvm-svn: 110055
2010-08-02 18:36:53 +00:00
Devang Patel d070128de5 Free DbgScope created for dead functions.
llvm-svn: 110045
2010-08-02 17:32:15 +00:00
Kalle Raiskila 77558b7d13 More SPU v2f32 stuff added: insertelement and shuffle.
llvm-svn: 110038
2010-08-02 11:22:10 +00:00
Kalle Raiskila 68b3886678 Add preliminary v2f32 support for SPU. Like with v2i32, we just
duplicate the instructions and operate on half vectors. 

Also reorder code in SPUInstrInfo.td for better coherency.

llvm-svn: 110037
2010-08-02 10:25:47 +00:00
Owen Anderson 8f306a779b Re-apply the infamous r108614, with a fix pointed out by Dirk Steinke.
llvm-svn: 110036
2010-08-02 09:32:13 +00:00
Kalle Raiskila 622f8eb981 Add preliminary v2i32 support for SPU backend. As there are no
such registers in SPU, this support boils down to "emulating" 
them by duplicating instructions on the general purpose registers. 

This adds the most basic operations on v2i32: passing parameters,
addition, subtraction, multiplication and a few others.

llvm-svn: 110035
2010-08-02 08:54:39 +00:00
Oscar Fuentes 40b31ad3ee Prefix `next' iterator operation with `llvm::'.
Fixes potential ambiguity problems on VS 2010.

Patch by nobled!

llvm-svn: 110029
2010-08-02 06:00:15 +00:00
Daniel Dunbar c1b09c8644 Fix a -Wreorder warning.
llvm-svn: 110022
2010-08-02 05:43:46 +00:00
Nick Lewycky f52bd9cc33 Work in progress.
Start cleaning up MergeFunctions to look more like the rest of LLVM. The
primary change here is to move the methods responsible for comparison into the
new FunctionComparator object. Some comments added. There's more to do.

llvm-svn: 110021
2010-08-02 05:23:03 +00:00
Eli Friedman 460ad41d6d PR7586: Make sure we don't claim that unknown bits are actually known in the
ISD::AND case of TargetLowering::SimplifyDemandedBits.

llvm-svn: 110019
2010-08-02 04:42:25 +00:00
Nick Lewycky adaf5172bf Fix this condition; it has an else clause attached for Darwin only. Patch
by Takumi Nakamura.

llvm-svn: 110016
2010-08-02 03:16:19 +00:00
Daniel Dunbar 1465d7cffa Fix comment.
llvm-svn: 110006
2010-08-02 01:25:20 +00:00
Daniel Dunbar f85eb933d4 docs/TestingGuide: Minimal update to describe 'lit' based regression testing
instead of DejaGNU. Still a bit kooky, since the current test format still has
some strong Tcl roots. Oh well!

llvm-svn: 110005
2010-08-02 01:20:23 +00:00
Daniel Dunbar a9075c5ead docs/TestingGuide: Rip out description of old nightly tester infrastructure. The
official recommendation is to use LNT instead. I will write docs on setting up
an LNT installation for submission to llvm.org, one day.

llvm-svn: 110004
2010-08-02 01:20:20 +00:00
Daniel Dunbar 5eeae48783 tests: Kill off custom targets which were just there for TestRunner.sh.
llvm-svn: 110003
2010-08-02 00:52:44 +00:00
Daniel Dunbar 4b77d23d40 tests: Deprecate TestRunner.sh, and have it just invoke 'llvm-lit' (which will
need to be in your path). Please move to using 'llvm-lit' if you are still using
TestRunner.sh.

llvm-svn: 110002
2010-08-02 00:52:41 +00:00
Daniel Dunbar 1390d189f3 build: Fix a dependency.
llvm-svn: 110001
2010-08-02 00:45:41 +00:00
Daniel Dunbar a19db3594f tests: Add an 'llvm-lit' tool (script), which gets generated as part of the
build and has the object build directory baked into it. This allows 'llvm-lit'
to properly find the information needed to run the test suite in all cases,
without requiring the user to have LLVM or 'lit' available in their PATH, for
example.

llvm-svn: 110000
2010-08-02 00:39:42 +00:00
Daniel Dunbar 38a867aca6 lit: Allow clients to define predefined parameters.
llvm-svn: 109999
2010-08-02 00:39:38 +00:00
Eli Friedman 7595ce05a2 PR7781: Fix incorrect shifting in PPCTargetLowering::LowerBUILD_VECTOR.
llvm-svn: 109998
2010-08-02 00:18:19 +00:00
Daniel Dunbar b1af605e58 tests: Make 'lit' the default test tool. You can still use 'make check-dg' to
run the tests using DejaGNU, but not for much longer. This is a last call for
DejaGNU supporters, if no one complains soon the DejaGNU support is going to
die.

llvm-svn: 109997
2010-08-02 00:05:18 +00:00
Daniel Dunbar df77432f8a Targets: Add InitializeNativeTargetAsmPrinter(), patch by Jan Sjodin, although
rewritten by me to not require updating all the target initialization routine
names.

llvm-svn: 109996
2010-08-01 23:36:18 +00:00
Nick Lewycky daf67727a3 Fix word choice.
llvm-svn: 109995
2010-08-01 23:18:45 +00:00
Eli Friedman 1b2bc1b844 PR7774: Fix undefined shifts in Alpha backend. As a bonus, this actually
improves the generated code in some cases.

llvm-svn: 109985
2010-08-01 21:13:28 +00:00
Benjamin Kramer 3d4af4e91e Preallocate vector, avoid unnecessary vector growth.
llvm-svn: 109971
2010-08-01 11:43:26 +00:00
Bill Wendling d9900542a6 Reference the personalities. Don't copy them into a new vector.
llvm-svn: 109966
2010-08-01 01:34:21 +00:00
Bob Wilson 66161f5eb4 Revert new AVX intrinsic tests. They are breaking buildbots and Bruno is
away from a computer now.
--- Reverse-merging r109881 into '.':
D    test/CodeGen/X86/avx-intrinsics-x86.ll
D    test/CodeGen/X86/avx-intrinsics-x86_64.ll

llvm-svn: 109959
2010-07-31 22:36:03 +00:00
Daniel Dunbar 40842fa2ee build: Don't pass -avoid-version or -no-undefined on Darwin, they don't do
anything.

llvm-svn: 109957
2010-07-31 21:32:56 +00:00
Daniel Dunbar 727be43a3d Silence some -Asserts uninitialized variable warnings.
llvm-svn: 109956
2010-07-31 21:08:54 +00:00
Michael J. Spencer f695f8f9ed llc: Add -mc-relax-all.
llvm-svn: 109954
2010-07-31 19:57:02 +00:00
Daniel Dunbar 0b636a24c7 Speculatively revert r108614, "Another attempt at getting the clang self-host to
like my instcombine patch.", in an attempt to fix Clang i386 bootstrap.
 - Also PR7719.

llvm-svn: 109953
2010-07-31 19:51:11 +00:00
Rafael Espindola e490460fc8 Add const to some methods and change TestMergedProgram to return the merged
module and take a const BugDriver.

llvm-svn: 109951
2010-07-31 14:34:49 +00:00
Gabor Greif 779e4b15f1 doxygenize argument accessors
llvm-svn: 109950
2010-07-31 08:35:21 +00:00
Michael J. Spencer ed80f361b3 MC: Remove HasAbsolutizedSet from WindowsX86AsmBackend.
llvm-svn: 109949
2010-07-31 07:21:44 +00:00
Bob Wilson b128824b60 Move newlines before inline jumptables from the asm strings in .td files to
the jtblock_operand print methods.  This avoids extra newlines in the
disassembler's output.  PR7757.

llvm-svn: 109948
2010-07-31 06:28:10 +00:00
Michael J. Spencer 6b4925e223 Add relax all support to the COFF object streamer.
llvm-svn: 109947
2010-07-31 06:22:29 +00:00
Bob Wilson cd5fc7bef1 Add support for disassembling VMVN (immediate) instructions. PR7747.
llvm-svn: 109946
2010-07-31 05:57:44 +00:00
Rafael Espindola 40f18838b7 The BlockExtractorPass() constructor was not reading the BlockFile and that was
exactly what bugpoint expected it to do.

There was also only one user of
BlockExtractorPass(const std::vector<BasicBlock*> &B), so just remove it and
make BlockExtractorPass read BlockFile.

This fixes bugpoint's block extraction.

Nick, please review.

llvm-svn: 109936
2010-07-31 00:32:17 +00:00
Owen Anderson c1561b8400 Add an initial implementation of PHI translation for LazyValueInfo. This involves rolling back some
of my earlier data structure improvements until I can ensure that there are no iterator invalidation problems.

llvm-svn: 109935
2010-07-30 23:59:40 +00:00
Evan Cheng 59069ec784 Add -disable-shifter-op to disable isel of shifter ops. On Cortex-a9 the shifts cost extra instructions so it might be better to emit them separately to take advantage of dual-issues.
llvm-svn: 109934
2010-07-30 23:33:54 +00:00
Bob Wilson eb7b21f3eb Add a check in the ARM disassembler for NEON instructions that would
reference registers past the end of the NEON register file, and report them
as invalid instead of asserting when trying to print them.  PR7746.

llvm-svn: 109933
2010-07-30 23:27:59 +00:00
Bill Wendling 9b8d586039 Add a "Compare" flag to the target instruction descriptor. This will be used
later to identify and possibly remove superfluous compare instructions -- those
that are testing for and setting a status flag that should already be set.

llvm-svn: 109901
2010-07-30 22:48:39 +00:00
Dale Johannesen cf0287e56d PPC doesn't supported VLA with large alignment. This was
formerly rejected by the FE, so asserted in the BE; now the FE only
warns, so we treat it as a legitimate fatal error in PPC BE.
This means the test for the feature won't pass, so it's xfail'd.

llvm-svn: 109892
2010-07-30 21:09:48 +00:00
Dan Gohman d566d2c7b5 Move MaximumAlignment to be a member of the Value class.
llvm-svn: 109891
2010-07-30 21:07:05 +00:00
Owen Anderson e4a0ab69d2 Revert my last two patches to LVI, which recent changes have exposed a miscompilation in.
llvm-svn: 109889
2010-07-30 20:56:07 +00:00
Nick Lewycky 299c6dfcbf Add missing newline to debug statement.
llvm-svn: 109886
2010-07-30 20:27:01 +00:00
Nick Lewycky 916a28b16a LibCallAliasAnalysis uses multiple inheritance, so it needs to implement
getAdjustedAnalysisPointer. Part of a fix to PR7760.

llvm-svn: 109883
2010-07-30 20:19:09 +00:00
Bruno Cardoso Lopes 92941fdb26 A *bunch* of tests for AVX intrinsics
llvm-svn: 109881
2010-07-30 19:57:56 +00:00
Bob Wilson 4320e2d1bb Add the __TEXT,__StaticInit section to the list of sections emitted at the
beginning on ARM Darwin assembly files so that it won't be placed after
debug sections.  Radar 8252813.

llvm-svn: 109879
2010-07-30 19:55:47 +00:00
Bruno Cardoso Lopes 349165b48f Support all 128-bit AVX vector intrinsics. Most part of them I already
declared during the addition of the assembler support, the additional
changes are:
- Add missing intrinsics
- Move all SSE conversion instructions in X86InstInfo64.td to the SSE.td file.
- Duplicate some patterns to AVX mode.
- Step into PCMPEST/PCMPIST custom inserter and add AVX versions.

llvm-svn: 109878
2010-07-30 19:54:33 +00:00
Bruno Cardoso Lopes 405405bbfe Fix typo!
llvm-svn: 109877
2010-07-30 19:41:24 +00:00
Bob Wilson 964179cb58 Attempt to fix the llvm-gcc-powerpc-darwin9 buildbot.
llvm-svn: 109876
2010-07-30 18:52:47 +00:00
Daniel Dunbar 5dc31317dd MC: Initialize MCFragment::Offset, noticed by Cameron Esfahani.
llvm-svn: 109875
2010-07-30 18:32:09 +00:00
Daniel Dunbar c90e82a7f1 Fix -Wmissing-field-initializers warnings.
llvm-svn: 109872
2010-07-30 17:49:04 +00:00
John Criswell ad05ae483f Grammar cop pullover: Corrected and improved some grammar in the description of
the llvm.memset() intrinsic family.
No content changes.

llvm-svn: 109863
2010-07-30 16:30:28 +00:00
Rafael Espindola c89b1ef0a9 Add a Program argument to diffProgram to avoid a use of swapProgramIn.
llvm-svn: 109859
2010-07-30 14:19:00 +00:00
Benjamin Kramer f9d5fe7fbd Tweak suppressions.
llvm-svn: 109858
2010-07-30 12:18:36 +00:00
Eli Friedman ffe64c06ef Fix for bug reported by Evzen Muller on llvm-commits: make sure to correctly
check the range of the constant when optimizing a comparison between a
constant and a sign_extend_inreg node.

llvm-svn: 109854
2010-07-30 06:44:31 +00:00
Duncan Sands 6263d492b5 Do not pass a copy of the value map, pass a reference to it.
llvm-svn: 109852
2010-07-30 05:50:45 +00:00
Duncan Sands cb59bfa7ec Fix the ValueMap copy constructor. The issue is that the map keys are value
handles with a pointer to the containing map.  When a map is copied, these
pointers need to be corrected to point to the new map.  If not, then consider
the case of a map M1 which maps a value V to something.  Create a copy M2 of
M1.  At this point there are two value handles on V, one representing V as a
key in M1, the other representing V as a key in M2.  But both value handles
point to M1 as the containing map.  Now delete V.  The value handles remove
themselves from their containing map (which destroys them), but only the first
value handle is successful: the second one cannot remove itself from M1 as
(once the first one has removed itself) there is nothing there to remove; it
is therefore not destroyed.  This causes an assertion failure "All references
to V were not removed?".

llvm-svn: 109851
2010-07-30 05:49:32 +00:00
Jim Grosbach d343166a0b Many Thumb2 instructions can reference the full ARM register set (i.e.,
have 4 bits per register in the operand encoding), but have undefined
behavior when the operand value is 13 or 15 (SP and PC, respectively).
The trivial coalescer in linear scan sometimes will merge a copy from
SP into a subsequent instruction which uses the copy, and if that
instruction cannot legally reference SP, we get bad code such as:
  mls r0,r9,r0,sp
instead of:
  mov r2, sp
  mls r0, r9, r0, r2

This patch adds a new register class for use by Thumb2 that excludes
the problematic registers (SP and PC) and is used instead of GPR
for those operands which cannot legally reference PC or SP. The
trivial coalescer explicitly requires that the register class
of the destination for the COPY instruction contain the source
register for the COPY to be considered for coalescing. This prevents
errant instructions like that above.

PR7499

llvm-svn: 109842
2010-07-30 02:41:01 +00:00
Gabor Greif 56c38bda40 remove a layer of cruft
llvm-svn: 109821
2010-07-29 23:35:00 +00:00
Eric Christopher 2e276485cb Fix this up per llvm-gcc r109819.
llvm-svn: 109820
2010-07-29 23:20:29 +00:00
Benjamin Kramer 2e357b62bb Supress valgrind errors from python.
llvm-svn: 109818
2010-07-29 23:15:04 +00:00
Bob Wilson dbc3f3ff28 Remove the temporary hack, now that the llvm-i686-linux buildbot has
completed a successful build.

llvm-svn: 109815
2010-07-29 22:55:29 +00:00
Nate Begeman c4a96c0e8c Add builtins for ssat/usat, similar to RealView's __ssat and __usat intrinsics.
llvm-svn: 109813
2010-07-29 22:48:09 +00:00
Bob Wilson f2903999b3 Fix the temporary hack.
llvm-svn: 109810
2010-07-29 22:33:35 +00:00
Daniel Dunbar 79bd45ee1f Temporary hack to ensure stale Analysis dir is cleaned up on llvm-i686-linux.
llvm-svn: 109809
2010-07-29 22:18:50 +00:00
Benjamin Kramer d9624e2d2e Remove XFAIL, test doesn't leak anymore.
llvm-svn: 109801
2010-07-29 20:36:36 +00:00
Bob Wilson 728eb292eb Refactor ARM-specific DAG combining in preparation for adding some more
transformations.

llvm-svn: 109800
2010-07-29 20:34:14 +00:00
Dale Johannesen 2bff50546c Implement vector constants which are splat of
integers with mov + vdup.  8003375.  This is
currently disabled by default because LICM will
not hoist a VDUP, so it pessimizes the code if
the construct occurs inside a loop (8248029).

llvm-svn: 109799
2010-07-29 20:10:08 +00:00
Bob Wilson a9bf1b1493 Don't assert on an unrecognized BrMiscFrm instruction.
PR7745.

llvm-svn: 109788
2010-07-29 18:29:28 +00:00
John McCall 9ad943ef28 Transcribe IRC to svn. Also don't print basic block names twice if they match.
llvm-svn: 109787
2010-07-29 18:20:13 +00:00
Eric Christopher be2bb0d337 Grammar.
llvm-svn: 109775
2010-07-29 18:11:28 +00:00
John McCall 61483f0e1f Make the header self-contained and follow #include guidelines.
llvm-svn: 109774
2010-07-29 18:08:23 +00:00
Eli Friedman 0428a61e45 PR7750: !CExpr->isNullValue() only properly computes whether CExpr is nonnull
if CExpr is a ConstantInt.

llvm-svn: 109773
2010-07-29 18:03:33 +00:00
Owen Anderson b2c657c618 Make un-named values legible in certain vim configurations.
llvm-svn: 109772
2010-07-29 17:57:57 +00:00
Nate Begeman 7010a71ac4 Add intrinsics __builtin_arm_qadd & __builtin_arm_qsub to allow access to the QADD & QSUB instructions.
Behave identically to __qadd & __qsub RealView instruction intrinsics.

llvm-svn: 109770
2010-07-29 17:56:55 +00:00
John McCall 58c5088d48 Switch to using the LLVM CommandLine library so that our help
message is properly contaminated with nonsense about timing passes
that doesn't apply at all to this utility. :)

llvm-svn: 109769
2010-07-29 17:55:00 +00:00
Benjamin Kramer a3e0ddb564 Plug the remaining MC leaks by giving MCObjectStreamer/MCAsmStreamer ownership of the TargetAsmBackend and the MCCodeEmitter.
llvm-svn: 109767
2010-07-29 17:48:06 +00:00
Dale Johannesen 329d4741a5 Comment typo.
llvm-svn: 109765
2010-07-29 17:45:24 +00:00
Jakob Stoklund Olesen ba0e124aaf Revert r109652, and remove the offending assert in loadRegFromStackSlot instead.
We do sometimes load from a too small stack slot when dealing with x86 arguments
(varargs and smaller-than-32-bit args). It looks like we know what we are doing
in those cases, so I am going to remove the assert instead of artifically
enlarging stack slot sizes.

The assert in storeRegToStackSlot stays in. We don't want to write beyond the
bounds of a stack slot.

llvm-svn: 109764
2010-07-29 17:42:27 +00:00
Daniel Dunbar 4a338e3dc4 CrashRecovery: Use ThreadLocal::erase() instead of set(0).
llvm-svn: 109752
2010-07-29 15:24:21 +00:00
Rafael Espindola 07035e6a00 Make the test while reducing blocks functional. This avoids accessing freed
memory when one of the original BB is destroyed.

llvm-svn: 109747
2010-07-29 14:20:59 +00:00
Benjamin Kramer bccfec653d Stop leaking std::strings in GetDwarfFile.
llvm-svn: 109746
2010-07-29 13:53:19 +00:00
Benjamin Kramer c2997dde85 COFFObjectWriter: Don't leak COFFSymbols and COFFSections.
llvm-svn: 109745
2010-07-29 11:57:59 +00:00
John McCall eaeede9a06 Centralize the logic to permanently unify two instructions and make sure
it establishes a context and does a complaining diff.  Also make sure we
unify the prelude and postlude of a diff after a block-diff call.

llvm-svn: 109744
2010-07-29 09:20:34 +00:00
John McCall 8489de298e Diagnose non-structural differences in the case where blocks were
structurally identical.

llvm-svn: 109743
2010-07-29 09:04:45 +00:00
John McCall 0ed6b1326c When unifying instructions during a block diff, actually complain about
any differences we see.  This should only happen if there are "non-structural"
differences between the instructions, i.e. differences which wouldn't cause
diff to return true.

llvm-svn: 109742
2010-07-29 08:59:27 +00:00
John McCall d293c4e6e0 Somehow I was getting reasonable results for the test cases I was interested
in despite not ever incrementing any path costs, so that the only nonzero costs
arose from the all-left path in the first column.  Anyway.  Perform the diff
starting from the beginning of the block to avoid capturing (say) loads of
allocas.

Vastly improves diff results on code that hasn't been mem2reg'ed.

llvm-svn: 109741
2010-07-29 08:53:59 +00:00
John McCall 10c91bfa66 Cache the result of errs() and implement formatted logging.
llvm-svn: 109740
2010-07-29 08:14:41 +00:00
John McCall 5e6a16d71f Add the llvm-diff tool, which performs a relatively naive structural
diff of a function.  There's a lot of cruft in the current version, and
it's pretty far from perfect, but it's usable.

Currently only capable of comparing functions.  Currently ignores metadata.
Currently ignores most attributes of functions and instructions.

Patches welcome.

llvm-svn: 109739
2010-07-29 07:53:27 +00:00
Daniel Dunbar 9789f81eb4 Make sure to include config.h, to pickup LLVM_ON_WIN32.
llvm-svn: 109721
2010-07-29 01:52:04 +00:00
Daniel Dunbar b759a13da8 MC: Destroy Macro instances.
llvm-svn: 109720
2010-07-29 01:51:55 +00:00
Eric Christopher ef6d5933a6 Speculatively revert r109705 since it seems to be causing some build bot
angst.

llvm-svn: 109718
2010-07-29 01:25:38 +00:00
Daniel Dunbar af77e22b36 CrashRecoveryContext: Add a simple POSIX implementation.
- This works, but won't handle crashes on stack overflow, or signals delivered
   to a thread other than the one that crashed. The latter is particular annoying
   on Darwin, because SIGABRT tends to go to the main thread.

llvm-svn: 109717
2010-07-29 01:21:47 +00:00
Jakob Stoklund Olesen 36cf119049 Fix a bug in the -regalloc=fast handling of exotic two-address instruction with
multiple defs, like t2LDRSB_POST.

The first def could accidentally steal the physreg that the second, tied def was
required to be allocated to.

Now, the tied use-def is treated more like an early clobber, and the physreg is
reserved before allocating the other defs.

This would never be a problem when the tied def was the only def which is the
usual case.

This fixes MallocBench/gs for thumb2 -O0.

llvm-svn: 109715
2010-07-29 00:52:19 +00:00
Jakob Stoklund Olesen 1222249aab Use the right gcc tool args for IsARMArchitecture.
llvm-svn: 109714
2010-07-29 00:52:16 +00:00
Dan Gohman 3d6ac44d96 Factor out some of the code for updating old SCEVUnknown values, and
extend it to handle the case where multiple RAUWs affect a single
SCEVUnknown.

Add a ScalarEvolution unittest to test for this situation.

llvm-svn: 109705
2010-07-29 00:17:55 +00:00
Owen Anderson a44f49f189 Pass the queried value by argument rather than in a member, in preparation for supporting PHI translation.
llvm-svn: 109701
2010-07-28 23:50:08 +00:00
Jim Grosbach c445a7d29b ARM mode version of r109693. Remove incorrect substitution pattern for UXTB16. It wrongly assumed the input shift was actually a rotate. rdar://8240138
llvm-svn: 109696
2010-07-28 23:25:44 +00:00
Jim Grosbach 716a596cf7 Remove incorrect substitution pattern for UXTB16. It wrongly assumed the input shift was actually a rotate. rdar://8240138
llvm-svn: 109693
2010-07-28 23:17:45 +00:00
Jim Grosbach de0874a4bc Remove dead prototype
llvm-svn: 109691
2010-07-28 23:16:12 +00:00
Gabor Greif 62f0aac99d simplify by using CallSite constructors; virtually eliminates CallSite::get from the tree
llvm-svn: 109687
2010-07-28 22:50:26 +00:00
Owen Anderson cfc2a57fcd Add an erase() method to llvm::ThreadLocal.
llvm-svn: 109686
2010-07-28 22:49:43 +00:00
Owen Anderson bcaba485ce Add more doxygen comments for llvm::ThreadLocal.
llvm-svn: 109683
2010-07-28 22:30:53 +00:00
Owen Anderson 6982dd4e1f Get rid of LVIQuery as a distinct data structure, so that we don't have to initialize a new set of maps on every query.
llvm-svn: 109679
2010-07-28 22:07:25 +00:00
Dan Gohman 7e4163d48e Move MaximumAlignment to Value.h, now that GlobalValue.h needs it.
llvm-svn: 109656
2010-07-28 21:02:38 +00:00
Dan Gohman 390914cbe8 Make GlobalValue alignment consistent with load, store, and alloca
alignment, fixing silent truncation of alignment values.

llvm-svn: 109653
2010-07-28 20:56:48 +00:00
Jakob Stoklund Olesen f2234fbe70 Create a fixed stack object for varargs that is as large as any register.
The size of this object isn't used for anything - technically it is of variable
size.

This avoids a false positive from the assert in
X86InstrInfo::loadRegFromStackSlot, and fixes PR7735.

llvm-svn: 109652
2010-07-28 20:55:38 +00:00
Kevin Enderby e5930f142a Added first bit of support for the dwarf .file directive. This patch collects
the info from the .file directive and makes file and directory tables that
will eventually be put out as part of the dwarf info in the output file.

llvm-svn: 109651
2010-07-28 20:55:35 +00:00
Daniel Dunbar 18e39cec7a RegionInfo: Make sure to free cached nodes; Tobias, please check!
llvm-svn: 109650
2010-07-28 20:28:50 +00:00
Daniel Dunbar e397dded7b MC: Put back the MCFragment vtable, so subclasses are destroyed properly (duh).
llvm-svn: 109649
2010-07-28 20:28:45 +00:00
Eric Christopher f7eb811d1a Regenerate.
llvm-svn: 109647
2010-07-28 20:26:43 +00:00
Eric Christopher 84c95cc9b5 Use a C++ compiler for the atomic builtin check since we'll
be using a C++ compiler to build.

Patch by Török Edwin!

llvm-svn: 109646
2010-07-28 20:26:34 +00:00
Dan Gohman a7e5a24093 Define a maximum supported alignment value for load, store, and
alloca instructions (constrained by their internal encoding),
and add error checking for it. Fix an instcombine bug which
generated huge alignment values (null is infinitely aligned).
This fixes undefined behavior noticed by John Regehr.

llvm-svn: 109643
2010-07-28 20:12:04 +00:00
Jakob Stoklund Olesen 0ff2c110ad Print out the regclass of any virtual registers used by a machine instruction.
llvm-svn: 109608
2010-07-28 18:35:46 +00:00
Bob Wilson 59fba9d2b9 Fix a warning from gcc-4.0 (from the ppc buildbot).
llvm-svn: 109605
2010-07-28 18:21:10 +00:00
Rafael Espindola 594994a34c Instead of abusing swapProgramIn, just add a Module argument to
EmitProgressBitcode.

llvm-svn: 109602
2010-07-28 18:12:30 +00:00
Douglas Gregor b7b5a7dff0 Unbreak my CMake build, say you'll compile for me again...
llvm-svn: 109598
2010-07-28 17:17:46 +00:00
Dan Gohman 1da02dfbe3 Fix this code to avoid decrementing an iterator past the beginning
of a std::vector.

llvm-svn: 109597
2010-07-28 17:15:36 +00:00
Dan Gohman 9cd20bf792 When user code intentionally dereferences null, the alignment of the
dereference is theoretically infinite. Put a cap on the computed
alignment to avoid overflow, noticed by John Regehr.

llvm-svn: 109596
2010-07-28 17:14:23 +00:00
Dan Gohman 32f889e552 Do GEP offset calculations with unsigned math rather than signed math
to avoid undefined behavior on overflow, noticed by John Regehr.

llvm-svn: 109594
2010-07-28 17:11:36 +00:00
Dan Gohman 44ee74292f Add some extra friend declarations to fix a gcc-4.0 compile error.
This is a temporary fix, until more elaborate changes are ready.

llvm-svn: 109593
2010-07-28 17:09:24 +00:00
Gabor Greif f0084e1333 simplify
llvm-svn: 109589
2010-07-28 15:52:43 +00:00
Daniel Dunbar 19a3b37441 Support: Add CrashRecoveryContext helper object.
- Designed as a simple wrapper to allow clients to attempt to catch crashes
   (memory errors, assertion violations, etc.) and do some kind of recovery.

 - Currently doesn't actually attempt to catch crashes.

llvm-svn: 109586
2010-07-28 15:40:20 +00:00
Gabor Greif e497e5ef46 simplify
llvm-svn: 109585
2010-07-28 15:31:37 +00:00
Gabor Greif 0a970698da use Value* constructor of CallSite to create potentially improper site, and test that
llvm-svn: 109581
2010-07-28 14:28:18 +00:00
Gabor Greif 5bf74d648d use Value* constructor of CallSite to create potentially improper site, and test that
llvm-svn: 109580
2010-07-28 12:35:54 +00:00
Gabor Greif 67a970bff2 use Value* constructor of CallSite to create potentially improper site
llvm-svn: 109579
2010-07-28 12:19:46 +00:00
Gabor Greif 7cf6056484 simplify
llvm-svn: 109578
2010-07-28 10:57:28 +00:00
Gabor Greif 2e2503cd8d simplify
llvm-svn: 109577
2010-07-28 10:46:09 +00:00
Gabor Greif 02fbd6b8ce we are supposed to only create proper CallSites from an instruction (esp. CallInst and InvokeInst)
llvm-svn: 109576
2010-07-28 10:44:59 +00:00
Eric Christopher e1270c64e3 Filter out patterns that have PredicateOperands.
llvm-svn: 109572
2010-07-28 01:52:23 +00:00
Dan Gohman 7a066723d0 Make SCEVCallbackVH::allUsesReplacedWith update the old SCEVUnknown
object, as it may still be referenced by SCEVs not cleaned up by the
use list traversal.

Also, in ScalarEvolution::forgetValue, only check for a SCEVUnknown
object for the original value, not for any value in the use list,
because other SCEVUnknown values aren't necessary obsolete at that
point.

llvm-svn: 109570
2010-07-28 01:09:07 +00:00
Dan Gohman 8aeb0fb5ca Make SCEVCallbackVH::allUsesReplacedWith unconditionally delete
the old value.

llvm-svn: 109567
2010-07-28 00:28:25 +00:00
Nate Begeman 53afc8f06a Implement a vectorized algorithm for <16 x i8> << <16 x i8>
This is about 4x faster and smaller than the existing scalarization.

llvm-svn: 109566
2010-07-28 00:21:48 +00:00
Dan Gohman a3659efe09 Add a comment.
llvm-svn: 109565
2010-07-28 00:21:18 +00:00
Owen Anderson aac5a72139 Rearrange several datastructures in LazyValueInfo to improve compile time.
This is still not perfect, but better than it was before.

llvm-svn: 109563
2010-07-27 23:58:11 +00:00
Owen Anderson 462b205ffe Fill out the interface of DenseSet a bit.
llvm-svn: 109562
2010-07-27 23:55:47 +00:00
Stuart Hastings a7f1d4a2ba Testcase for r109556. Radar 8198362.
llvm-svn: 109557
2010-07-27 23:15:25 +00:00
Gabor Greif 0630a71742 reintroduce original (asserting) semantics of CallSite(Instruction *II)
add instead a CallSite(Value* V) constructor that is consistent with ImmutableCallSize
and use that one in client code

llvm-svn: 109553
2010-07-27 22:53:28 +00:00
Nate Begeman 269a6da023 ~40% faster vector shl <4 x i32> on SSE 4.1 Larger improvements for smaller types coming in future patches.
For:

define <2 x i64> @shl(<4 x i32> %r, <4 x i32> %a) nounwind readnone ssp {
entry:
  %shl = shl <4 x i32> %r, %a                     ; <<4 x i32>> [#uses=1]
  %tmp2 = bitcast <4 x i32> %shl to <2 x i64>     ; <<2 x i64>> [#uses=1]
  ret <2 x i64> %tmp2
}

We get:

_shl:                                   ## @shl
	pslld	$23, %xmm1
	paddd	LCPI0_0, %xmm1
	cvttps2dq	%xmm1, %xmm1
	pmulld	%xmm1, %xmm0
	ret

Instead of:

_shl:                                   ## @shl
	pshufd	$3, %xmm0, %xmm2
	movd	%xmm2, %eax
	pshufd	$3, %xmm1, %xmm2
	movd	%xmm2, %ecx
	shll	%cl, %eax
	movd	%eax, %xmm2
	pshufd	$1, %xmm0, %xmm3
	movd	%xmm3, %eax
	pshufd	$1, %xmm1, %xmm3
	movd	%xmm3, %ecx
	shll	%cl, %eax
	movd	%eax, %xmm3
	punpckldq	%xmm2, %xmm3
	movd	%xmm0, %eax
	movd	%xmm1, %ecx
	shll	%cl, %eax
	movd	%eax, %xmm2
	movhlps	%xmm0, %xmm0
	movd	%xmm0, %eax
	movhlps	%xmm1, %xmm1
	movd	%xmm1, %ecx
	shll	%cl, %eax
	movd	%eax, %xmm0
	punpckldq	%xmm0, %xmm2
	movdqa	%xmm2, %xmm0
	punpckldq	%xmm3, %xmm0
	ret

llvm-svn: 109549
2010-07-27 22:37:06 +00:00
Gabor Greif ef1ca24b91 recommit simplification (originally r109504, backed out in r109508) now that problem in CallSiteBase is fixed
llvm-svn: 109547
2010-07-27 22:02:00 +00:00
Gabor Greif 63f55c49f2 remove bogus assert, use static_cast for additional checking
left two new asserts commented out, because they would fire in clang, have to hunt those down first

llvm-svn: 109544
2010-07-27 21:46:11 +00:00
Devang Patel 84a74779a1 It is FE's responsibility to emit proper directory name.
llvm-svn: 109538
2010-07-27 20:51:15 +00:00
Chris Lattner 425592a9d8 make lookup failures not fatal.
llvm-svn: 109530
2010-07-27 18:59:50 +00:00
Jim Grosbach 7383cf06ba Grammar
llvm-svn: 109525
2010-07-27 18:36:27 +00:00
Devang Patel bd32256e25 Update tests to not rely on input file's absolute path.
llvm-svn: 109521
2010-07-27 18:13:53 +00:00
Nate Begeman 317b969ac5 Fix a crash in the dag combiner caused by ConstantFoldBIT_CONVERTofBUILD_VECTOR calling itself
recursively and returning a SCALAR_TO_VECTOR node, but assuming the input was always a BUILD_VECTOR.

llvm-svn: 109519
2010-07-27 18:02:18 +00:00
Jim Grosbach 2ff0e64bc3 80 column
llvm-svn: 109513
2010-07-27 17:38:47 +00:00
Jim Grosbach 7639967e6c fix typo
llvm-svn: 109511
2010-07-27 17:14:29 +00:00
Gabor Greif f159085414 recommit simplification (r109502, backed out r109509); seems to innocent
llvm-svn: 109510
2010-07-27 16:44:23 +00:00
Gabor Greif 5f91b7cf3e back out this too to restore the bots
llvm-svn: 109509
2010-07-27 15:56:07 +00:00
Gabor Greif ed1d92cb9a back out r109504, breaks the bots
llvm-svn: 109508
2010-07-27 15:18:11 +00:00
Gabor Greif 7b0a5fd2a5 simplify: CallSite::get --> CallSite constructor
llvm-svn: 109506
2010-07-27 15:02:37 +00:00
Gabor Greif 195a609c37 simplify
llvm-svn: 109504
2010-07-27 14:38:38 +00:00
Gabor Greif d59498bc97 use ImmutableCallSite for const-corrgoodness
llvm-svn: 109503
2010-07-27 14:15:29 +00:00
Gabor Greif 7527b2ed5c simplify
llvm-svn: 109502
2010-07-27 13:31:22 +00:00
Mikhail Glushenkov ee68696c5f Fix silent failure with no input files.
llvm-svn: 109500
2010-07-27 11:19:40 +00:00
Mikhail Glushenkov d359cf2e44 Return -1 only on failure to execute a program.
Also fix some comments.

llvm-svn: 109499
2010-07-27 11:19:36 +00:00
Duncan Sands eb58ed8b5a In commit 91421, isPod was changed from false to true for these value handles.
Change it back again: destructors and constructors need to be run.

llvm-svn: 109498
2010-07-27 09:09:05 +00:00
Tobias Grosser 731b079edb Make coff-dump.py executable and add python as executable for this script.
This fixes the MC/COFF/basic-coff.ll test case.

llvm-svn: 109497
2010-07-27 09:01:26 +00:00
Tobias Grosser fc763867d5 RegionInfo: Add getMaxRegionExit()
getMaxRegionExit returns the exit of the maximal refined region starting
at a specific basic block.

llvm-svn: 109496
2010-07-27 08:39:43 +00:00
Duncan Sands fd5c8329cf After updating value handles for RAUW, check that no weak or tracking handles
are still on the list.  This might happen if a CallbackVH created some new value
handles for the old value when doing RAUW.  Barf if it occurs, since it is almost
certainly a mistake.

llvm-svn: 109495
2010-07-27 06:53:14 +00:00
Michael J. Spencer f8270bdb2d Make MC use Windows COFF on Windows and add tests.
llvm-svn: 109494
2010-07-27 06:46:15 +00:00
Tobias Grosser 1bec81a888 Add function to query RegionInfo about loops.
* contains(Loop), * getOutermostLoop()
* Improve getNameStr() to return a sensible name, if basic blocks are not named.

llvm-svn: 109490
2010-07-27 04:17:13 +00:00
Jakob Stoklund Olesen 96a890a7f8 The isLoadFromStackSlot and isStoreToStackSlot have no way of reporting
subregister operands like this:

%reg1040:sub_32bit<def> = MOV32rm <fi#-2>, 1, %reg0, 0, %reg0, %reg1040<imp-def>; mem:LD4[FixedStack-2](align=8)

Make them return false when subreg operands are present. VirtRegRewriter is
making bad assumptions otherwise.

This fixes PR7713.

llvm-svn: 109489
2010-07-27 04:17:01 +00:00
Jakob Stoklund Olesen c3c05ed02e Add assertions that expose the PR7713 miscompilation: Accessing a stack slot
with a too-big register class.

llvm-svn: 109488
2010-07-27 04:16:58 +00:00
Bill Wendling 0ff1ef650b It's better to have the arrays, which would trigger the creation of stack
protectors, to be near the stack protectors on the stack. Accomplish this by
tagging the stack object with a predicate that indicates that it would trigger
this. In the prolog-epilog inserter, assign these objects to the stack after the
stack protector but before the other objects.

llvm-svn: 109481
2010-07-27 01:55:19 +00:00
Dan Gohman 86ac5d85a4 Use AssertingVH for InsertedValues and InsertedPostIncValues, to verify
that the values they refer to aren't being deleted underneath them.

Make sure these containters get cleared by clear(), which IndVarSimplify
and LSR both use before deleting instructions.

llvm-svn: 109478
2010-07-27 01:19:06 +00:00
Owen Anderson 761b8bf130 (Hopefully) One last test.
llvm-svn: 109473
2010-07-27 00:04:55 +00:00
Owen Anderson 0f5dcde4b0 Another test.
llvm-svn: 109472
2010-07-27 00:00:47 +00:00
Owen Anderson 79c830fd64 Another test.
llvm-svn: 109471
2010-07-26 23:58:46 +00:00
Jakob Stoklund Olesen c698417e52 Add SplitEditor to SplitKit. This class will be used to edit live intervals and
rewrite instructions for live range splitting.

Still work in progress.

llvm-svn: 109469
2010-07-26 23:44:11 +00:00
Dan Gohman c2af77f510 Fix a use-after-free.
llvm-svn: 109468
2010-07-26 23:40:24 +00:00
Bill Wendling fa60b0ee51 Using llvm.eh.catch.all.value instead of .llvm.eh.catch.all.value.
llvm-svn: 109462
2010-07-26 22:36:52 +00:00
Eli Friedman f902befe8e And a bit more non-ASCII stuff.
llvm-svn: 109458
2010-07-26 22:28:18 +00:00
Anton Korobeynikov 1e0d76bfd1 Drop some non-ascii stuff
llvm-svn: 109456
2010-07-26 22:23:07 +00:00
Bob Wilson f23a06c2e4 Don't call __register_frame from the JIT on systems that use setjmp/longjmp
exception handling.  Also fix an extra underscore typo in one instance of
"__ARM_EABI__".  Radar 8236264.

llvm-svn: 109451
2010-07-26 21:58:00 +00:00
Evan Cheng d4218b8793 On x86, f32 / f64 nodes share the same registers as 128-bit vector values.
llvm-svn: 109450
2010-07-26 21:50:05 +00:00
Evan Cheng e6d6c5dd11 The "excess register pressure" returned by HighRegPressure() is not accurate enough to factor into scheduling priority. Eliminate it and add early exits to speed up scheduling.
llvm-svn: 109449
2010-07-26 21:49:07 +00:00
Anton Korobeynikov b61a6f2742 Add a note
llvm-svn: 109448
2010-07-26 21:48:35 +00:00
Dan Gohman 9306a8ec1b Add a comment.
llvm-svn: 109435
2010-07-26 21:05:37 +00:00
Bruno Cardoso Lopes 36c2ea6c7a Temporary hack to let codegen assert or generate poor code in case
we are using AVX and no AVX version of the desired intruction is present,
this is better for incremental dev (without fallbacks it's easier to spot
what's missing). Not sure this is the best hack thought (we can also disable
all HasSSE* predicates by dinamically marking them 'false' if AVX is present)

llvm-svn: 109434
2010-07-26 21:01:18 +00:00
Owen Anderson 952e75fbd9 Testing some more.
llvm-svn: 109433
2010-07-26 20:51:45 +00:00
Owen Anderson 73b2f5d910 Test some more.
llvm-svn: 109431
2010-07-26 20:19:04 +00:00
Dan Gohman 14e297e534 Fix library build messages.
llvm-svn: 109430
2010-07-26 20:15:47 +00:00
Gabor Greif ed79dcb1ab re-commit r109220, the compile error has already been fixed
Simplifying use_iterators by dereferencing
is not a good idea. The codebase does not depend
in this any more, and it may introduce hidden
runtime cost. If you get compile errors, please
dereference your iterator before passing to cast<>
(and friends).

Also: please consider caching the result of
operator* and reusing that instead of dereferencing
many times.

llvm-svn: 109425
2010-07-26 18:48:07 +00:00
Owen Anderson aa7f66ba67 Add an initial implementation of LazyValueInfo updating for JumpThreading. Disabled for now.
llvm-svn: 109424
2010-07-26 18:48:03 +00:00
Anton Korobeynikov 6bcea068db Currently EH lowering code expects typeinfo to be global only.
This assumption is not satisfied due to global mergeing.
Workaround the issue by temporary disablinge mergeing of const globals.
Also, ignore LLVM "special" globals. This fixes PR7716

llvm-svn: 109423
2010-07-26 18:45:39 +00:00
Owen Anderson bb4c4b59a4 Fix a test with malformed IR. Not sure why this didn't fail before.
llvm-svn: 109422
2010-07-26 18:44:56 +00:00
Evan Cheng 23b05d1cf5 ARM fastisel isn't ready.
llvm-svn: 109421
2010-07-26 18:32:55 +00:00
Owen Anderson 6f054d7cea One more test commit...
llvm-svn: 109420
2010-07-26 18:31:17 +00:00
Dan Gohman cd83870faf Fix SCEVExpander::visitAddRecExpr so that it remembers the induction variable
it inserted rather than using LoopInfo::getCanonicalInductionVariable to
rediscover it, since that doesn't work on non-canonical loops. This fixes
infinite recurrsion on such loops; PR7562.

llvm-svn: 109419
2010-07-26 18:28:14 +00:00
Dan Gohman 2810bacafb Handle Values with no value in getCopyFromRegs.
llvm-svn: 109415
2010-07-26 18:15:41 +00:00
Owen Anderson 9dfbb84464 Hopefully the last test commit.
llvm-svn: 109414
2010-07-26 18:13:21 +00:00
Dan Gohman 0141c13b22 Remove LCSSA's bogus dependence on LoopSimplify and LoopSimplify's bogus
dependence on DominanceFrontier. Instead, add an explicit DominanceFrontier
pass in StandardPasses.h to ensure that it gets scheduled at the right
time.

Declare that loop unrolling preserves ScalarEvolution, and shuffle some
getAnalysisUsages.

This eliminates one LoopSimplify and one LCCSA run in the standard
compile opts sequence.

llvm-svn: 109413
2010-07-26 18:11:16 +00:00
Dan Gohman a7908ae369 Preserve ScalarEvolution in the loop unroller.
llvm-svn: 109412
2010-07-26 18:02:06 +00:00
Owen Anderson e8ecb4acf6 Another test commit.
llvm-svn: 109411
2010-07-26 18:00:59 +00:00
Dan Gohman b0961f2443 Avoid depending on LCSSA implicitly pulling in LoopSimplify.
llvm-svn: 109410
2010-07-26 18:00:43 +00:00
Owen Anderson 732a7e2661 Test commit for new post-commit hooks.
llvm-svn: 109409
2010-07-26 17:56:42 +00:00
Dan Gohman accaca5604 Fix (at least) quadratic worst-case complexity in DominanceFrontier::splitBlock:
don't visit all blocks in the function, and don't iterate over the split blocks'
predecessor lists for each block visited.

Also, remove the special-case test for the entry block. Splitting the entry
block isn't common enough to make this worthwhile.

This fixes a major compile-time bottleneck which is exposed now that
LoopSimplify isn't being redundantly run both before and after
DominanceFrontier.

llvm-svn: 109408
2010-07-26 17:55:15 +00:00
Eric Christopher 62ac5ca22d 80-col.
llvm-svn: 109407
2010-07-26 17:53:07 +00:00
Dan Gohman 30005444fe Avoid copying and recopying a std::set.
llvm-svn: 109405
2010-07-26 17:45:33 +00:00
Dan Gohman 2307c4bb76 Exit a search loop when the search goal is found.
llvm-svn: 109404
2010-07-26 17:41:45 +00:00
Dan Gohman 45af0ad182 Fix formatting.
llvm-svn: 109403
2010-07-26 17:39:33 +00:00
Dan Gohman f9da3c3b88 A block dominates itself, by definition.
llvm-svn: 109402
2010-07-26 17:38:15 +00:00
Dan Gohman 65b257c9d2 Use DominatorTree::properlyDominates instead of dominates with an
explicit inequality check.

llvm-svn: 109401
2010-07-26 17:37:36 +00:00
Dan Gohman 31f73ef210 A block dominates itself, by definition.
llvm-svn: 109400
2010-07-26 17:35:32 +00:00
Dan Gohman b3aa6c7110 Use DominatorTree::properlyDominates instead of dominates with an
explicit inequality check.

llvm-svn: 109398
2010-07-26 17:34:05 +00:00
Duncan Sands 136a6f0dbb Pacify gcc-4.5 which wrongly thinks that RExcess (passed as the Excess parameter)
may be used uninitialized in the callers of HighRegPressure.

llvm-svn: 109393
2010-07-26 07:54:17 +00:00
Douglas Gregor 675b162512 Fix format-specifier warning
llvm-svn: 109391
2010-07-26 03:55:44 +00:00
Michael J. Spencer c21293792e MC: Fix whitespace error from last commit.
A Visual C++ extension that removes trailing new lines? Seriously?

llvm-svn: 109390
2010-07-26 03:01:28 +00:00
Michael J. Spencer b5fc138547 MC: Add WinCOFFObjectWriter implementation.
Origonal Windows COFF implementation by Nathan Jedffords.

llvm-svn: 109389
2010-07-26 02:17:32 +00:00
Lang Hames 2e3f20b9aa Factored out a bit of common code to mark VNInfos for deletion.
llvm-svn: 109388
2010-07-26 01:49:41 +00:00
Rafael Espindola 235457ca7f Clone and restore the module being reduced in
ReduceMiscompilingFunctions::TestFuncs. This makes the test functional
(i.e., no side effects).

Before we would end up using dead functions if a pass decided to remove them
(inline for example) and we would also keep broken functions and conclude that
that a single function was enough to reproduce the bug.

llvm-svn: 109387
2010-07-26 00:07:51 +00:00
Benjamin Kramer 5aaf677a37 Reduce string trashing.
llvm-svn: 109386
2010-07-25 23:18:32 +00:00
Nick Lewycky a3f7dcd069 Don't pass -export-dynamic to the linker on Cygwin and MinGW. These platforms
accept the flag and do nothing but warn about it, cleverly bypassing our
configure-based detection system. Patch by Takumi Nakamura!

llvm-svn: 109385
2010-07-25 22:33:04 +00:00