Commit Graph

44560 Commits

Author SHA1 Message Date
Sanjiv Gupta c10d810303 Fixed the comment. No functionality change.
llvm-svn: 63387
2009-01-30 09:01:44 +00:00
Zhou Sheng 1e36fbb5ed This is case is to uncover the bug in IntrinsicLowering.cpp,
the LowerPartSet(). It didn't handle the situation correctly when 
the low, high argument values are in reverse order (low > high) 
with 'Val' type is i32 (a corner case).

llvm-svn: 63386
2009-01-30 08:59:51 +00:00
Mike Stump ecbe4a0860 Add opposite_of and inverse_opt to support -fno- style options. This
is necessary for eventual gcc commmand line compatibility.

llvm-svn: 63384
2009-01-30 08:19:46 +00:00
Sanjiv Gupta 082174cb78 Use sublw for comparison with literals instead of subwf.
llvm-svn: 63382
2009-01-30 07:55:25 +00:00
Mon P Wang cbb20a6ee1 When PerformBuildVectorCombine, avoid creating a X86ISD::VZEXT_LOAD of
an illegal type.

llvm-svn: 63380
2009-01-30 07:07:40 +00:00
Sanjiv Gupta 964a29f671 Enable emitting of constant values in non-default address space as well. The APIs emitting constants now take an additional parameter signifying the address space in which to emit. The APIs like getData8BitsDirective() etc are made virtual enabling targets to be able to define appropirate directivers for various sizes and address spaces.
llvm-svn: 63377
2009-01-30 04:25:10 +00:00
Bill Wendling 9b3407e5bb Propagate debug loc info in SimplifyNodeWithTwoResults.
llvm-svn: 63376
2009-01-30 03:08:40 +00:00
Bill Wendling faed065e5c Propagate debug loc info for MULHS.
llvm-svn: 63375
2009-01-30 03:00:18 +00:00
Bill Wendling d033af09fd Propagate debug loc info for SREM and UREM.
llvm-svn: 63374
2009-01-30 02:57:00 +00:00
Bill Wendling aff3e03765 Propagate debug loc info for UDIV.
llvm-svn: 63373
2009-01-30 02:55:25 +00:00
Bill Wendling 5b663e7b53 Propagate debug loc info for SDIV.
llvm-svn: 63372
2009-01-30 02:52:17 +00:00
Bill Wendling b48dcf67e5 Forgot to propagate debug loc info here.
llvm-svn: 63371
2009-01-30 02:49:26 +00:00
Dan Gohman 1ee0d41ef8 Fix a post-RA scheduling dependency bug.
If a MachineInstr doesn't have a memoperand but has an opcode that
is known to load or store, assume its memory reference may alias
*anything*, including stack slots which the compiler completely
controls.

To partially compensate for this, teach the ScheduleDAG building
code to do basic getUnderlyingValue analysis. This greatly
reduces the number of instructions that require restrictive
dependencies. This code will need to be revisited when we start
doing real alias analysis, but it should suffice for now.

llvm-svn: 63370
2009-01-30 02:49:14 +00:00
Bill Wendling 091f92f568 Propagate debug loc info for MUL.
llvm-svn: 63369
2009-01-30 02:45:56 +00:00
Bill Wendling 48ff08ef3e Propagate debug loc info in SUB.
llvm-svn: 63368
2009-01-30 02:42:10 +00:00
Bill Wendling 6127757920 Propagate debug loc info in ADDC and ADDE.
llvm-svn: 63367
2009-01-30 02:38:00 +00:00
Bill Wendling c442348dd7 Propagate debug loc info in DAG combine's "ADD".
llvm-svn: 63366
2009-01-30 02:31:17 +00:00
Bill Wendling cdd96133bd - Propagate debug loc info in combineSelectAndUse().
- Modify ReassociateOps so that the resulting SDValue is what the comment claims
  it is.

llvm-svn: 63365
2009-01-30 02:23:43 +00:00
Mikhail Glushenkov c7d6951c92 Add some comments.
llvm-svn: 63364
2009-01-30 02:12:57 +00:00
Chris Lattner caffe92d86 Fix a bug in getMaxValue/getMinValue to pass the right signedness the
the constructed APSInt, patch suggested by Ben Laurie!

llvm-svn: 63362
2009-01-30 01:58:19 +00:00
Devang Patel acbb381cc4 Enable target tripple.
llvm-svn: 63361
2009-01-30 01:40:58 +00:00
Devang Patel a103ee4f0d Linux and other target's encoding for DW_AT_declaration may not match.
llvm-svn: 63360
2009-01-30 01:37:30 +00:00
Dale Johannesen ed255b3d8e Propagate debug info when building SelectionDAG.
llvm-svn: 63359
2009-01-30 01:34:22 +00:00
Devang Patel 33a21670f4 Remove dead code, again.
llvm-svn: 63358
2009-01-30 01:27:49 +00:00
Devang Patel 776a4c5baa Remove dead code.
llvm-svn: 63357
2009-01-30 01:25:47 +00:00
Devang Patel 4ba91058d2 Add DW_AT_declaration for class methods.
llvm-svn: 63356
2009-01-30 01:21:46 +00:00
Bill Wendling 9c9a3b6665 Propagate debug location info for the token factor.
llvm-svn: 63355
2009-01-30 01:13:16 +00:00
Devang Patel 199740651c Add dump() routines to help debug debug info :)
llvm-svn: 63353
2009-01-30 01:03:10 +00:00
Bill Wendling f6d0aff0bd Add DebugLoc propagation to some of the methods in DAG combiner.
llvm-svn: 63350
2009-01-30 00:45:56 +00:00
Bill Wendling 33dddf3235 Explain why this is here.
llvm-svn: 63342
2009-01-29 23:19:43 +00:00
Owen Anderson ad89c410e6 XFAIL this test. It only worked before because of a bug in the spill point selection code. Not deleting because
it should be possible to enhance the selection code to handle this in the future.

llvm-svn: 63340
2009-01-29 22:27:56 +00:00
Owen Anderson bf77d2eb9d Correct the algorithms for choosing spill and restore points so that we don't try to insert loads/stores between call frame setup and the actual call.
This fixes the last known failure for the pre-alloc-splitter.

llvm-svn: 63339
2009-01-29 22:13:06 +00:00
Dan Gohman 14d55f0a5c Explicitly add PseudoSourceValue information when lowering
BUILD_VECTOR and conversions to stack operations.

llvm-svn: 63333
2009-01-29 21:02:43 +00:00
Dan Gohman 60d6844aa8 Make a few things const, fix some comments, and simplify
some assertions.

llvm-svn: 63328
2009-01-29 19:49:27 +00:00
Chris Lattner dfb6735385 Fix windows build, patch by Marius Wachtler!
llvm-svn: 63325
2009-01-29 18:53:28 +00:00
Evan Cheng a160d4af82 Local register allocator shouldn't assume only the entry and landing pad basic blocks have live-ins.
llvm-svn: 63323
2009-01-29 18:37:30 +00:00
Dan Gohman 8b437ccbbe Fix two typos that Duncan spotted in a comment.
llvm-svn: 63312
2009-01-29 16:18:12 +00:00
Dan Gohman ef04ed5477 In the case of an extractelement on an insertelement value,
the element indices may be equal if either one is not a
constant.

llvm-svn: 63311
2009-01-29 16:10:46 +00:00
Evan Cheng a115859df0 Add a always_inline test case.
llvm-svn: 63304
2009-01-29 09:31:54 +00:00
Bill Wendling a434d930ff Revert r63273. This was already implemented by Dale. There's no need for my
change.

llvm-svn: 63301
2009-01-29 09:01:55 +00:00
Evan Cheng 45799abe61 Add a test case for Chris lvalue alignment fixes.
llvm-svn: 63300
2009-01-29 08:59:46 +00:00
Owen Anderson c0924a0632 Fix an issue where restores could be inserted after a terminator instruction,
and an iterator invalidation issue.

FreeBench/pifft no longer miscompiles with these fixes!

llvm-svn: 63293
2009-01-29 08:22:06 +00:00
Owen Anderson a590802ed6 Comments are good. :-)
llvm-svn: 63276
2009-01-29 05:41:02 +00:00
Owen Anderson b05ce78c51 Add support for aggressive load-use-store folding. This takes care of the
vast majority of code size regressions introduced by pre-alloc-splitting.

llvm-svn: 63274
2009-01-29 05:28:55 +00:00
Bill Wendling 50338007b9 - Add DebugLoc to getTargetNode().
- Modify TableGen to add the DebugLoc when calling getTargetNode.

(The light-weight wrappers are only temporary. The non-DebugLoc version will be
removed once the whole debug info stuff is finished with.)

llvm-svn: 63273
2009-01-29 05:27:31 +00:00
Chris Lattner c0474013cb Fix PR3424, a static constructor ordering issue. Patch by Robert Schuster!
llvm-svn: 63269
2009-01-29 04:43:42 +00:00
Evan Cheng 76a2736c74 Exit with nice warnings when register allocator run out of registers.
llvm-svn: 63267
2009-01-29 02:20:59 +00:00
Dan Gohman e58ab79f33 Make x86's BT instruction matching more thorough, and add some
dagcombines that help it match in several more cases. Add
several more cases to test/CodeGen/X86/bt.ll. This doesn't
yet include matching for BT with an immediate operand, it
just covers more register+register cases.

llvm-svn: 63266
2009-01-29 01:59:02 +00:00
Dan Gohman 84f0165273 Move the code that starts printing the Select_* functions
after the code that sorts the patterns. This doesn't
affect the output, but it makes the code a little easier
to follow.

llvm-svn: 63265
2009-01-29 01:37:18 +00:00
Evan Cheng 89ba594975 A slight compile time optimization. If the caller knows there isn't a free register getReg() should not call getFreeReg().
llvm-svn: 63263
2009-01-29 01:13:00 +00:00
Dale Johannesen 839acbb089 Add DebugLoc-sensitive versions of many node creation
functions.  Currently omitted:  memcpy, memmove, memset.

llvm-svn: 63259
2009-01-29 00:47:48 +00:00
Evan Cheng 55ca1d38ea Fix comment about removeRange.
llvm-svn: 63255
2009-01-29 00:06:09 +00:00
Mon P Wang 9150f735fa Fixed lowering of v816 shuffles.
llvm-svn: 63252
2009-01-28 23:11:14 +00:00
Bill Wendling 42b63bc175 Make test platform agnostic.
llvm-svn: 63247
2009-01-28 22:20:56 +00:00
Bill Wendling 1b6a3bce82 Add DebugLoc to the getNode() methods.
llvm-svn: 63245
2009-01-28 22:17:52 +00:00
Dan Gohman d21775ae0e Give this test an explicit target, to make it host-independent.
llvm-svn: 63244
2009-01-28 22:14:58 +00:00
Dan Gohman 511d5ece2b SDOperand has been renamed to SDValue. SDNode::Val is now
accessed via SDNode::getNode.

llvm-svn: 63240
2009-01-28 21:36:46 +00:00
Dan Gohman f52ac41566 Add more comments describing SDNode operator codes.
llvm-svn: 63239
2009-01-28 21:34:36 +00:00
Dale Johannesen 666bf20441 Add DebugLoc-aware constructors for SDNode derived
classes (those that reasonably have a DebugLoc
associated with them).

llvm-svn: 63236
2009-01-28 21:18:29 +00:00
Dan Gohman 7a1b4538a0 Add some comments on ISD::NodeType.
llvm-svn: 63234
2009-01-28 21:13:08 +00:00
Devang Patel d7ecb3b661 Do not forget to derived type while constructing an array type.
llvm-svn: 63233
2009-01-28 21:08:20 +00:00
Chris Lattner df17987c19 Fix some issues with volatility, move "CanConvertToScalar" check
after the others.

llvm-svn: 63227
2009-01-28 20:16:43 +00:00
Chris Lattner 1498e62117 strengthen this test.
llvm-svn: 63222
2009-01-28 19:29:30 +00:00
Mon P Wang a15ea78ea6 Fixed extract element when the result needs to be promoted and the input widened.
llvm-svn: 63217
2009-01-28 18:53:39 +00:00
Dan Gohman e7d7b0c2fd Delete unnecessary elses.
llvm-svn: 63214
2009-01-28 18:03:09 +00:00
Chris Lattner ff2d99d94b Enable PACKAGE_VERSION in cmake builds, this unbreaks the clang build with cmake.
Patch by Piotr Rak!

llvm-svn: 63213
2009-01-28 17:49:03 +00:00
Dan Gohman 4aa1846215 Make isOperationLegal do what its name suggests, and introduce a
new isOperationLegalOrCustom, which does what isOperationLegal
previously did.

Update a bunch of callers to use isOperationLegalOrCustom
instead of isOperationLegal. In some case it wasn't obvious
which behavior is desired; when in doubt I changed then to
isOperationLegalOrCustom as that preserves their previous
behavior.

This is for the second half of PR3376.

llvm-svn: 63212
2009-01-28 17:46:25 +00:00
Duncan Sands ba21b7d57a Formatting.
llvm-svn: 63199
2009-01-28 14:42:54 +00:00
Duncan Sands 5a913d61e3 Rename getAnalysisToUpdate to getAnalysisIfAvailable.
llvm-svn: 63198
2009-01-28 13:14:17 +00:00
Duncan Sands 08e53d041f Fix PR3415 (infinite loop in EscapeAnalysis) by
deleting the escape analysis pass.

llvm-svn: 63197
2009-01-28 11:33:59 +00:00
Evan Cheng f31f288863 The memory alignment requirement on some of the mov{h|l}p{d|s} patterns are 16-byte. That is overly strict. These instructions read / write f64 memory locations without alignment requirement.
llvm-svn: 63195
2009-01-28 08:35:02 +00:00
Mon P Wang d880efc005 Added sse test patterns for r62979 and r63193.
llvm-svn: 63194
2009-01-28 08:13:56 +00:00
Mon P Wang 5a685a52c1 Add shuffle splat pattern for x86 sse shifts.
llvm-svn: 63193
2009-01-28 08:12:05 +00:00
Mikhail Glushenkov 02b47b5e7a Typo.
llvm-svn: 63174
2009-01-28 03:47:58 +00:00
Mikhail Glushenkov 84172f7dca Update the generated docs.
llvm-svn: 63173
2009-01-28 03:47:38 +00:00
Mikhail Glushenkov 2115d09a10 Add three new option properties.
Adds new option properties 'multi_val', 'one_or_more' and 'zero_or_one'.

llvm-svn: 63172
2009-01-28 03:47:20 +00:00
Mikhail Glushenkov 57cf3964f3 Clarify comment.
llvm-svn: 63171
2009-01-28 03:46:22 +00:00
Dan Gohman b3bbde3e62 Use ValueType::bitsLT to simplify some code.
llvm-svn: 63170
2009-01-28 03:10:52 +00:00
Dan Gohman 172ad92b29 Use ZERO_EXTEND instead of ANY_EXTEND when promoting
shift amounts, to avoid implicitly assuming that
target architectures will ignore the high bits.

llvm-svn: 63169
2009-01-28 02:58:31 +00:00
Bill Wendling 3cf43ca571 Comment fixes.
llvm-svn: 63164
2009-01-28 01:19:52 +00:00
Evan Cheng e4510972a6 Suppress a compile time warning.
llvm-svn: 63161
2009-01-28 00:53:34 +00:00
Dale Johannesen b3e0931401 Embalm my ideas of how things should work. Not that
anyone will pay attention.

llvm-svn: 63155
2009-01-27 23:32:10 +00:00
Devang Patel 5adc3dbc96 Add type DIE into appropriate context DIE.
llvm-svn: 63154
2009-01-27 23:22:55 +00:00
Dale Johannesen 4e04ef3c55 Add a DebugLoc field and some simple accessors.
llvm-svn: 63152
2009-01-27 23:20:29 +00:00
Dale Johannesen 675869aef0 Reorder args, constify.
llvm-svn: 63151
2009-01-27 23:19:41 +00:00
Bill Wendling fd03bdd00c Add testcase for r63142.
llvm-svn: 63149
2009-01-27 23:00:53 +00:00
Anton Korobeynikov 70d4c08cfe Treat [1 x i8] zeroinitializer as a C string, placing such stuff into
mergeable string section. I don't see any bad impact of such decision
(rather then placing it into mergeable const section, as it was before),
but at least Darwin linker won't complain anymore.

The problem in LLVM is that we don't have special type for string constants
(like gcc does). Even more, we have two separate types: ConstatArray for non-null
strings and ConstantAggregateZero for null stuff.... It's a bit weird :)

llvm-svn: 63142
2009-01-27 22:29:24 +00:00
Dan Gohman b841dc2957 Use .empty() instead of comparing .size() with 0.
llvm-svn: 63139
2009-01-27 22:12:23 +00:00
Dale Johannesen aa064e6cd6 Update to latest spelling.
llvm-svn: 63138
2009-01-27 22:09:11 +00:00
Dale Johannesen f041127bda Add DebugLoc field and simple accessors.
llvm-svn: 63136
2009-01-27 21:41:04 +00:00
Evan Cheng 573e529127 Refine DebugLoc per review comments.
llvm-svn: 63132
2009-01-27 21:15:07 +00:00
Dan Gohman fb58faf29e Add an assertion to the form of SelectionDAG::getConstant that takes
a uint64_t to verify that the value is in range for the given type,
to help catch accidental overflow. Fix a few places that relied on
getConstant implicitly truncating the value.

llvm-svn: 63128
2009-01-27 20:39:34 +00:00
Dan Gohman 0ca1e7c6b6 Reformat the allocation-order arrays to a more conventional style.
llvm-svn: 63121
2009-01-27 19:25:38 +00:00
Dan Gohman 0bd9546039 Delete redundant return statements.
llvm-svn: 63120
2009-01-27 19:23:22 +00:00
Dan Gohman 13f18e853f Respect the DisableRedZone flag on PowerPC.
llvm-svn: 63119
2009-01-27 19:19:28 +00:00
Dan Gohman f77f0ce21a Simplify findNonImmUse; return the result using the return value
instead of via a by-reference argument. No functionality change.

llvm-svn: 63118
2009-01-27 19:04:30 +00:00
Torok Edwin ec39eb8519 APInt's countLeadingOnes() was broken for negative i128 values,
causing assertion failures in getSExtValue().
Fix it by making highWordBits actually contain what its name says,
and add some more unit-tests for APInt.
This fixes PR3419.

llvm-svn: 63107
2009-01-27 18:06:03 +00:00
Dan Gohman ed2ba0fb01 Make some comments doxygen-friendly.
llvm-svn: 63104
2009-01-27 17:28:23 +00:00
Owen Anderson 431053ed2c Make the pre-split-limit option more useful by using a per-function counter.
llvm-svn: 63091
2009-01-27 05:01:15 +00:00
Evan Cheng 1bc8af207e Implement multiple with overflow by 2 with an add instruction.
llvm-svn: 63090
2009-01-27 03:30:42 +00:00
Evan Cheng ce95cddd0f Forgot this test case.
llvm-svn: 63089
2009-01-27 02:59:39 +00:00
Dan Gohman 7740523a89 Eliminate unnecessary operands-list traversals.
llvm-svn: 63088
2009-01-27 02:37:43 +00:00
Dan Gohman 52e907a780 Add a FrontendC testcase for the x86-64 Red Zone feature,
to help verify that the feature may be disabled through
the -mno-red-zone option.

llvm-svn: 63079
2009-01-27 00:59:55 +00:00
Dan Gohman 75cee3a93c Enable the red zone on x86-64 by default.
llvm-svn: 63078
2009-01-27 00:58:47 +00:00
Devang Patel 45c899cd15 Assorted debug info fixes.
- DW_AT_bit_size is only suitable for bitfields.
- Encode source location info for derived types.
- Source location and type size info is not useful for subroutine_type (info is included in respective DISubprogram) and array_type.

llvm-svn: 63077
2009-01-27 00:45:04 +00:00
Dan Gohman 8738997c11 Add a regression test for x86-64 red zone usage.
llvm-svn: 63075
2009-01-27 00:40:27 +00:00
Dan Gohman 1cd2a2c9f8 Fix the Red Zone calculation for functions with frame pointers.
Don't use the Red Zone when dynamic stack realignment is needed.
This could be implemented, but most x86-64 ABIs don't require
dynamic stack realignment so it isn't urgent.

llvm-svn: 63074
2009-01-27 00:40:06 +00:00
Evan Cheng b8c79bdc31 No need to keep size of DebugLocations vector separately.
llvm-svn: 63070
2009-01-26 23:47:30 +00:00
Dale Johannesen 03490f0ce1 Testcase for 6522054.
llvm-svn: 63067
2009-01-26 23:22:19 +00:00
Scott Michel 49483188c3 CellSPU:
- Update DWARF debugging support.

llvm-svn: 63059
2009-01-26 22:33:37 +00:00
Scott Michel 3789a13c30 Make the Dwarf macro information section optional; CellSPU's assembler
doesn't support it. The default is set to 'true', so this should not
impact any other target backends.

llvm-svn: 63058
2009-01-26 22:32:51 +00:00
Dan Gohman b6d36e1d14 Implement Red Zone utilization on x86-64. This is currently
disabled by default; I'll enable it when I hook it up with
the llvm-gcc flag which controls it.

llvm-svn: 63056
2009-01-26 22:22:31 +00:00
Steve Naroff 8cf220398b More updates to VC proj...
llvm-svn: 63050
2009-01-26 22:03:42 +00:00
Owen Anderson e84c3f261e Reapply r63025 and r63026, with fixes for the failing testcases.
llvm-svn: 63049
2009-01-26 21:57:31 +00:00
Duncan Sands d77e476921 Fix PR3393, which amounts to a bug in the expensive
checking logic.  Rather than make the checking more
complicated, I've tweaked some logic to make things
conform to how the checking thought things ought to
be, since this results in a simpler "mental model".

llvm-svn: 63048
2009-01-26 21:54:18 +00:00
Ted Kremenek a26699211d Add method raw_fd_ostream::seek() for random access within a file.
llvm-svn: 63044
2009-01-26 21:42:04 +00:00
Dan Gohman ac272eaf13 At Nick Lewycky's request, rename this test with a more informative name.
llvm-svn: 63042
2009-01-26 21:36:31 +00:00
Bill Wendling e7fa3c37c6 Also revert r63206
llvm-svn: 63041
2009-01-26 21:30:17 +00:00
Bill Wendling a39c83d118 Temporarily revert r63025 until the testsuite failures can be fixed.
llvm-svn: 63040
2009-01-26 21:27:03 +00:00
Dan Gohman 0b46005b19 Fix the name of an argument.
llvm-svn: 63037
2009-01-26 20:27:11 +00:00
Anton Korobeynikov 4b4622454c During bittest switch lowering emit shift in the test block, which should (theoretically)
allow us to generate more efficient code. We don't do this now though :)

llvm-svn: 63027
2009-01-26 19:26:01 +00:00
Owen Anderson 5e235d3a7e Get rid of a bunch of dead code now that interval reconstruction is enabled.
llvm-svn: 63026
2009-01-26 19:18:06 +00:00
Owen Anderson feffdec244 Fix an issue where LiveIntervals was trying to be smart about removing kill
markers, and ended up foiling the interval reconstruction.

This allows us to turn on reconstruction in the pre alloc splitter, which
fixes a number of miscompilations.

llvm-svn: 63025
2009-01-26 19:12:06 +00:00
Evan Cheng 6c7e85142b Enhance logic in X86DAGToDAGISel::PreprocessForRMW which move load inside callseq_start to allow it to be folded into a call. It was not considering the cases where a token factor is between the load and the callseq_start.
llvm-svn: 63022
2009-01-26 18:43:34 +00:00
Evan Cheng 72287a599f Silence a bogus compiler warning.
llvm-svn: 63021
2009-01-26 18:33:51 +00:00
Steve Naroff 0113928f94 Update VS project files.
llvm-svn: 63017
2009-01-26 18:08:55 +00:00
Roman Levenstein 179dd918b9 Fix a bug in BitVector.h. All assignment operations (except the usual
assignment operator) were returning a copy of the bit vector, instead of a
reference! This old semantics probably did not meet the expectations.
With this patch, chained assignments happen to the right object.

llvm-svn: 63012
2009-01-26 11:07:20 +00:00
Evan Cheng 4e6871da09 Actually source file has already been uniquified into an id during isel. Eliminate the StringMap.
llvm-svn: 63009
2009-01-26 07:53:42 +00:00
Evan Cheng b5706c45fa Add data structure to define and track debug location during codegen.
llvm-svn: 63008
2009-01-26 07:41:49 +00:00
Evan Cheng fd0ab12327 Looks like comments were chopped off.
llvm-svn: 63007
2009-01-26 07:40:13 +00:00
Evan Cheng 3975bbec58 LLVM_SUPPORT_DEBUGINFO_H -> LLVM_ANALYSIS_DEBUGINFO_H since DebugInfo.h is under Analysis.
llvm-svn: 63005
2009-01-26 07:31:20 +00:00
Mon P Wang 3537a62704 Fixed optimization of combining two shuffles where the first shuffle inputs
has a different number of elements than the output.

llvm-svn: 62998
2009-01-26 04:39:00 +00:00
Dan Gohman 8e4ac9b71a Take the next steps in making SDUse more consistent with LLVM Use, and
tidy up SDUse and related code.
 - Replace the operator= member functions with a set method, like
   LLVM Use has, and variants setInitial and setNode, which take
   care up updating use lists, like LLVM Use's does. This simplifies
   code that calls these functions.
 - getSDValue() is renamed to get(), as in LLVM Use, though most
   places can either use the implicit conversion to SDValue or the
   convenience functions instead.
 - Fix some more node vs. value terminology issues.

Also, eliminate the one remaining use of SDOperandPtr, and
SDOperandPtr itself.

llvm-svn: 62995
2009-01-26 04:35:06 +00:00
Scott Michel 95b2a206ee Untabify code.
llvm-svn: 62991
2009-01-26 03:37:41 +00:00
Scott Michel 9e3e4a9219 CellSPU:
- Rename fcmp.ll test to fcmp32.ll, start adding new double tests to fcmp64.ll
- Fix select_bits.ll test
- Capitulate to the DAGCombiner and move i64 constant loads to instruction
  selection (SPUISelDAGtoDAG.cpp).

  <rant>DAGCombiner will insert all kinds of 64-bit optimizations after
  operation legalization occurs and now we have to do most of the work that
  instruction selection should be doing twice (once to determine if v2i64
  build_vector can be handled by SelectCode(), which then runs all of the
  predicates a second time to select the necessary instructions.) But,
  CellSPU is a good citizen.</rant>

llvm-svn: 62990
2009-01-26 03:31:40 +00:00
Nate Begeman 624801e87e Fix a typo
llvm-svn: 62989
2009-01-26 03:15:54 +00:00
Nate Begeman a2550a8e96 De-identifying per sabre review
llvm-svn: 62988
2009-01-26 03:15:31 +00:00
Nick Lewycky 5c8fc9d549 Build libLTO on any platform so long as PIC is enabled.
llvm-svn: 62987
2009-01-26 03:04:57 +00:00
Nate Begeman 7ea4e861ca Add some documentation for address-space-based access to the segment registers.
llvm-svn: 62986
2009-01-26 02:54:45 +00:00
Chris Lattner 9449991c4f Handle single-entry phi nodes gracefully in condprop.
llvm-svn: 62985
2009-01-26 02:18:20 +00:00
Chris Lattner 7b6647c178 Fix PR3408 by making a non-obvious assumption very obvious, and
handling the flaw inherent in that assumption.  :)

llvm-svn: 62984
2009-01-26 02:11:30 +00:00
Chris Lattner 57cb472b56 More cleanups and simplifications, no functionality change.
llvm-svn: 62983
2009-01-26 01:57:01 +00:00
Chris Lattner d67aaa6560 tidy asserts
llvm-svn: 62982
2009-01-26 01:38:24 +00:00
Nate Begeman 5eca265519 Map address space 256 to gs; similar mappings could be supported for the
other x86 segments.  address space 0 is stack/default, 1-255 are reserved for
client use.

llvm-svn: 62980
2009-01-26 01:24:32 +00:00
Nate Begeman 8a51d8c8f7 Support pattern matching various x86 sse shifts.
llvm-svn: 62979
2009-01-26 00:52:55 +00:00
Chris Lattner 80b283c1cd silence a warning when assertions are disabled.
llvm-svn: 62976
2009-01-25 23:08:00 +00:00
Torok Edwin 692ed0f67d should have removed the + when manually applying a patch!
llvm-svn: 62973
2009-01-25 20:29:34 +00:00
Torok Edwin 97be2f5840 revert this patch for now, because Codegen does still want to generate SSE code,
for example in the case of va-args. XFAIL associated tests.

llvm-svn: 62972
2009-01-25 20:21:24 +00:00
Torok Edwin 3cc1940003 testcase for llvm-gcc part of PR3402.
llvm-svn: 62969
2009-01-25 18:00:06 +00:00
Torok Edwin a23c73bbdc If user explicitly asks not to use SSE, don't force it. This fixes LLVM part of PR3402.
llvm-svn: 62967
2009-01-25 17:58:56 +00:00
Dan Gohman f1d38be265 Eliminate the loop that searches through each of the operands
of each use in the SelectionDAG ReplaceAllUses* functions. Thanks
to Chris for spotting this opportunity.

Also, factor out code from all 5 of the ReplaceAllUses* functions
into AddNonLeafNodeToCSEMaps, which is now renamed
AddModifiedNodeToCSEMaps to more accurately reflect its purpose.

llvm-svn: 62964
2009-01-25 16:29:12 +00:00
Dan Gohman 3a113ec468 Whitespace tidiments.
llvm-svn: 62963
2009-01-25 16:21:38 +00:00
Dan Gohman e7b0dde2ee Move the N->use_empty() assert from DeleteNode to
DeleteNodeNotInCSEMaps, since DeleteNode just calls
DeleteNodeNotInCSEMaps.

llvm-svn: 62962
2009-01-25 16:20:37 +00:00
Dan Gohman e3f2278de1 Reality-check the FAQ entry for "Can I use LLVM to convert C++ to C?"
llvm-svn: 62961
2009-01-25 16:04:50 +00:00
Nick Lewycky 21add8f983 Start generating arbitrary precision integer SCEVs. This removes the temporary
code that rounded up and capped the size.

llvm-svn: 62958
2009-01-25 08:16:27 +00:00
Nick Lewycky cb7a10ab63 Actually run the test in this directory.
llvm-svn: 62957
2009-01-25 08:05:07 +00:00
Nick Lewycky 5647c5d1a4 The function that does nothing but call malloc is noalias return.
llvm-svn: 62956
2009-01-25 07:59:57 +00:00
Evan Cheng 1c7c019229 Private linkage support for PPC / Darwin.
llvm-svn: 62955
2009-01-25 06:32:01 +00:00
Evan Cheng abda665f5f Teach 2addr pass to be do more commuting. If both uses of a two-address instruction are killed, but the first operand has a use before and after the def, commute if the second operand does not suffer from the same issue.
%reg1028<def> = EXTRACT_SUBREG %reg1027<kill>, 1                                                                                                                                     
%reg1029<def> = MOV8rr %reg1028                                                                                                                                                      
%reg1029<def> = SHR8ri %reg1029, 7, %EFLAGS<imp-def,dead>                                                                                                                            
insert => %reg1030<def> = MOV8rr %reg1028                                                                                                                                            
%reg1030<def> = ADD8rr %reg1028<kill>, %reg1029<kill>, %EFLAGS<imp-def,dead>                                                                                                         

In this case, it might not be possible to coalesce the second MOV8rr                                                                                                                 
instruction if the first one is coalesced. So it would be profitable to                                                                                                              
commute it:                                                                                                                                                                          
%reg1028<def> = EXTRACT_SUBREG %reg1027<kill>, 1                                                                                                                                     
%reg1029<def> = MOV8rr %reg1028                                                                                                                                                      
%reg1029<def> = SHR8ri %reg1029, 7, %EFLAGS<imp-def,dead>                                                                                                                            
insert => %reg1030<def> = MOV8rr %reg1029                                                                                                                                            
%reg1030<def> = ADD8rr %reg1029<kill>, %reg1028<kill>, %EFLAGS<imp-def,dead>

llvm-svn: 62954
2009-01-25 03:53:59 +00:00
Nate Begeman b09b0242ca Fix an indent and a typo.
llvm-svn: 62940
2009-01-24 22:12:48 +00:00
Dale Johannesen 2b3389a626 Revert previous change; even this mild and clearly
more accurate change loses more than it gains on
benchmarks.

llvm-svn: 62938
2009-01-24 21:49:34 +00:00
Torok Edwin 3cedd4dc64 add note about possible GEP improvement with fields of size 0.
llvm-svn: 62925
2009-01-24 19:30:25 +00:00
Dan Gohman 73fd5a5651 Add a PR comment to this test.
llvm-svn: 62921
2009-01-24 17:32:54 +00:00
Torok Edwin f4395ea97a testcase for PR3381.
Also it was an empty struct, not a void after all.

llvm-svn: 62920
2009-01-24 17:16:04 +00:00
Dan Gohman 142ccc0e15 Add more documentation mentioning the limitations due to PR2660.
llvm-svn: 62919
2009-01-24 15:58:40 +00:00
Torok Edwin 73ff92272f void* is represented as pointer to empty struct {}.
Thus we need to check whether the struct is empty before trying to index into
it. This fixes PR3381.

llvm-svn: 62918
2009-01-24 11:30:49 +00:00
Owen Anderson ee34b8f179 Some cleanups. No functional changes.
llvm-svn: 62917
2009-01-24 10:07:43 +00:00
Dale Johannesen 899ecdbbba Improve the inlining cost function a bit.
Little practical effect.

llvm-svn: 62908
2009-01-24 01:27:33 +00:00
Chris Lattner 72cd68fe64 Make InstCombineStoreToCast handle aggregates more aggressively,
handling the case in Transforms/InstCombine/cast-store-gep.ll, which
is a heavily reduced testcase from Clang on x86-64.

llvm-svn: 62904
2009-01-24 01:00:13 +00:00
Mike Stump 82221d62a9 Perform optional clang building.
llvm-svn: 62895
2009-01-24 00:00:41 +00:00
Evan Cheng 6d8970695b Refactor code. No functionality change.
llvm-svn: 62893
2009-01-23 23:27:33 +00:00
Devang Patel ccfacfff9a Introduce two DWARF attribute extentions DW_AT_APPLE_optimized, DW_AT_APPLE_flags.
DW_AT_APPLE_optimized flag is set when a compile_unit is optimized. The debugger takes advantage of this information some way.

DW_AT_APPLE_flags encodes command line options when certain env. variable is set. This is used by build engineers to track various gcc command lines used by by  a project, irrespective of whether the project used makefile, Xcode or something else.

llvm-gcc patch is next.

llvm-svn: 62888
2009-01-23 22:33:47 +00:00
Chris Lattner 832959536a hopefully address PR3379 by making the P modifier work in x86 inline asm.
llvm-svn: 62887
2009-01-23 22:33:40 +00:00
Devang Patel 486d309b34 Fix test case. Use valid file name and directory in global variable's debug info entry.
llvm-svn: 62883
2009-01-23 21:54:18 +00:00
Gabor Greif 59c431347f use CallSite::isCalle instead of slow getOperandNo
llvm-svn: 62877
2009-01-23 21:17:04 +00:00
Gabor Greif eb61fcf2a1 Simplify the logic of getting hold of a PHI predecessor block.
There is now a direct way from value-use-iterator to incoming block in PHINode's API.
This way we avoid the iterator->index->iterator trip, and especially the costly
getOperandNo() invocation. Additionally there is now an assertion that the iterator
really refers to one of the PHI's Uses.

llvm-svn: 62869
2009-01-23 19:40:15 +00:00
Nate Begeman 617001d842 Add support for deleting a module provider from a JIT in such a way that it does not cause the owned module to be fully materialized.
llvm-svn: 62864
2009-01-23 19:27:28 +00:00
Devang Patel dd7aa37895 Empty DIType represents void. In this case no need to construct any type DIE.
llvm-svn: 62861
2009-01-23 19:13:31 +00:00
Dan Gohman 1275e28ded Fold x-0 to x in unsafe-fp-math mode. This comes up in the
testcase from PR3376, and in fact is sufficient to completely
avoid the problem in that testcase.

There's an underlying problem though; TLI.isOperationLegal
considers Custom to be Legal, which might be ok in some
cases, but that's what DAGCombiner is using in many places
to test if something is legal when LegalOperations is true.
When DAGCombiner is running after legalize, this isn't
sufficient. I'll address this in a separate commit.

llvm-svn: 62860
2009-01-23 19:10:37 +00:00
Duncan Sands d4aae43e79 Patch to build llvm with srcdir != objdir from
llvm-top.  By Michael Schuerig, with some small
tweaks to make the "don't configure if already
configured" logic work.

llvm-svn: 62842
2009-01-23 08:42:38 +00:00
Chris Lattner 3f4591c89f fix two more cases where we could let the NLPDI cache get unsorted.
With this, sqlite3 now passes.

llvm-svn: 62839
2009-01-23 07:12:16 +00:00
Chris Lattner e3ea48c71e Unconditionally reset 'cache' to zero, even if we don't need to resort it.
This avoids using a dangling pointer.

Reset NumSortedEntries after restoring Cache to avoid extraneous sorts.
This fixes the reduced sqlite3 testcase, but apparently not the whole app.

llvm-svn: 62838
2009-01-23 06:48:41 +00:00
Evan Cheng 9db227999a Only check if coalescing is worthwhile when the result is targeting a more restrictive register class.
llvm-svn: 62837
2009-01-23 05:48:59 +00:00
Evan Cheng f347c3615b Update test to reflect command line option name change.
llvm-svn: 62836
2009-01-23 05:45:31 +00:00
Owen Anderson a2ca64a39a Stage two of fixing pre-alloc-splitting's code size issues: filter out restores that are just
going to be re-spilled again.

This also helps performance.  Pre-alloc-splitting now seems to be an overall win on SPEC.

llvm-svn: 62834
2009-01-23 03:28:53 +00:00
Evan Cheng ab7bf14fb4 Cross register class coalescing. Not yet enabled.
llvm-svn: 62832
2009-01-23 02:15:19 +00:00
Devang Patel 7d537c23c1 Code did not follow associated comment. not a good idea.
llvm-svn: 62828
2009-01-23 01:25:58 +00:00
Devang Patel 4c8f55abda Set appropriate tag for the composite type.
llvm-svn: 62827
2009-01-23 01:19:09 +00:00
Chris Lattner 706d40e662 a minor tweak to my previous patch, handle the invalidation case
when there are multiple iterations of the loop.  This fixes PR3375.

llvm-svn: 62822
2009-01-23 00:27:03 +00:00
Owen Anderson 48abf2380b Add an initial pass at dead spill/restore removal for pre alloc splitting.
llvm-svn: 62821
2009-01-23 00:23:32 +00:00
Chris Lattner 1f9053a83c do not sign extend characters input to isprint. This improves
compatibility with VC++.  Patch by Max Burke!

llvm-svn: 62813
2009-01-22 23:38:45 +00:00
Steve Naroff 0681693277 Handful of fixes to the VC project files.
llvm-svn: 62807
2009-01-22 23:05:37 +00:00
Bob Wilson c2dc7ee5d0 Fix a minor bug in DAGCombiner's folding of SELECT. Folding "select C, 0, 1"
to "C ^ 1" is only valid when C is known to be either 0 or 1.  Most of the
similar foldings in this function only handle "i1" types, but this one appears
intentionally written to handle larger integer types.  If C has an integer
type larger than "i1", this needs to check if the high bits of a boolean
are known to be zero.  I also changed the comment to describe this folding as
"C ^ 1" instead of "~C", since that is what the code does and since the latter
would only be valid for "i1" types.  The good news is that most LLVM targets
use TargetLowering::ZeroOrOneBooleanContent so this change will not disable
the optimization; the bad news is that I've been unable to come up with a
testcase to demonstrate the problem.

I have also removed a "FIXME" comment for folding "select C, X, 0" to "C & X",
since the code looks correct to me.  It could be made more aggressive by not
limiting the type to "i1", but that would then require checking for
TargetLowering::ZeroOrNegativeOneBooleanContent.  Similar changes could be
done for the other SELECT foldings, but it was decided to be not worth the
trouble and complexity (see e.g., r44663).

llvm-svn: 62790
2009-01-22 22:05:48 +00:00
Dan Gohman 1f3411de47 Don't create ISD::FNEG nodes after legalize if they aren't legal.
Simplify x+0 to x in unsafe-fp-math mode. This avoids a bunch of
redundant work in many cases, because in unsafe-fp-math mode,
ISD::FADD with a constant is considered free to negate, so the
DAGCombiner often negates x+0 to -0-x thinking it's free, when
in reality the end result is -x, which is more expensive than x.

Also, combine x*0 to 0.

This fixes PR3374.

llvm-svn: 62789
2009-01-22 21:58:43 +00:00
Gabor Greif f4013373cd introduce a useful abstraction to find out if a Use is in the call position of an instruction
llvm-svn: 62788
2009-01-22 21:35:57 +00:00
Tanya Lattner 483e12e09e Regenerated configure after backing out 62553 and r62616.
llvm-svn: 62778
2009-01-22 20:11:17 +00:00
Tanya Lattner 9a8602ce50 Revert r62553 and r62616 due to issues with portability.
llvm-svn: 62777
2009-01-22 20:09:20 +00:00
Chris Lattner aa1212271a rename methods in System/Host to be more consistent.
llvm-svn: 62776
2009-01-22 19:53:00 +00:00
Devang Patel dec7fe2e71 Do not use buggy llvm-gcc to generate testcases.
llvm-svn: 62770
2009-01-22 18:28:11 +00:00
Bob Wilson c58900504b Add SelectionDAG::getNOT method to construct bitwise NOT operations,
corresponding to the "not" and "vnot" PatFrags.  Use the new method
in some places where it seems appropriate.

llvm-svn: 62768
2009-01-22 17:39:32 +00:00
Duncan Sands e3a26635fb Remove no-longer relevant comment. Pointed out
by Gabor.

llvm-svn: 62765
2009-01-22 15:37:29 +00:00
Duncan Sands ac6f7eeb05 This passes on linux.
llvm-svn: 62764
2009-01-22 15:07:15 +00:00
Sanjiv Gupta 4186ddfc5a Few targets like the tiny little PIC16 have only 16-bit pointers.
llvm-svn: 62763
2009-01-22 10:14:21 +00:00
Evan Cheng 4a0bf66eb8 Eliminate a couple of fields from TargetRegisterClass: SubRegClasses and SuperRegClasses. These are not necessary. Also eliminate getSubRegisterRegClass and getSuperRegisterRegClass. These are slow and their results can change if register file names change. Just use TargetLowering::getRegClassFor() to get the right TargetRegisterClass instead.
llvm-svn: 62762
2009-01-22 09:10:11 +00:00
Chris Lattner e09d631d8e fix a typo
llvm-svn: 62761
2009-01-22 07:21:55 +00:00
Chris Lattner 705ac7082b add a note
llvm-svn: 62760
2009-01-22 07:16:03 +00:00
Chris Lattner bed6be62e4 fix a testcase.
llvm-svn: 62758
2009-01-22 07:08:58 +00:00
Chris Lattner f09619d533 Fix PR3358, a really nasty bug where recursive phi translated
analyses could be run without the caches properly sorted.  This
can fix all sorts of weirdness.  Many thanks to Bill for coming
up with the 'issorted' verification idea.

llvm-svn: 62757
2009-01-22 07:04:01 +00:00
Tanya Lattner c4b1d8295d Bump to 2.6svn.
Regenerate configure (last regen was with the wrong version).

llvm-svn: 62751
2009-01-22 05:17:59 +00:00
Chris Lattner 9fc809e980 Make tblgen more portable, allowing it to build with ICC.
Patch by Robert Zeh!

llvm-svn: 62750
2009-01-22 05:10:16 +00:00
Mike Stump f7a16e9380 Don't create .dir files in installation directories. Switch to using
order-only dependancies for installation directories.

llvm-svn: 62746
2009-01-22 03:24:22 +00:00
Bill Wendling 8d176ed95b The operator<() and operator>() were reversing their tests. Have the test the correct way.
llvm-svn: 62745
2009-01-22 03:05:10 +00:00
Bill Wendling 08bebedbab Get rid of warning about implicit 64-to-32 bit conversions.
llvm-svn: 62741
2009-01-22 02:10:33 +00:00
Dan Gohman a5127abeec Add a few more notes about LLVM IR features that codegen doesn't
yet support.

llvm-svn: 62739
2009-01-22 01:39:38 +00:00
Oscar Fuentes 244d369d53 CMake: Tests PERL availability with PERL_EXECUTABLE variable.
On MSVC 64bits, does not put underscore before the symbol name on the
/INCLUDE linker parameter.

llvm-svn: 62738
2009-01-22 01:20:31 +00:00
Steve Naroff 1019bdef0c Add explicit this-> (to make the VS compiler happy).
llvm-svn: 62731
2009-01-21 23:49:23 +00:00
Dan Gohman 31dd016f81 Recognize inline asm for bswap on x86-64 GLIBC. This allows it
to be supported in the JIT.

llvm-svn: 62730
2009-01-21 23:40:54 +00:00
Douglas Gregor 3041abd608 Fix ilist two-phase name lookup
llvm-svn: 62724
2009-01-21 22:38:44 +00:00
Dan Gohman d776b6e51d Fix a missing word.
llvm-svn: 62720
2009-01-21 21:54:44 +00:00
Dan Gohman 01d7dd8607 Versions of VIM included with Intrepid and Leopard at least appear
to handle symlinks just fine, so reword the instructions in the
README accordingly.

llvm-svn: 62719
2009-01-21 21:52:42 +00:00
Dan Gohman 3155533003 Enable syntax highlighting of LLVM and tablegen files by default,
so that users don't have to copy text from the README to get this.

llvm-svn: 62718
2009-01-21 21:47:51 +00:00
Dan Gohman 455be5a0a0 Only set cindent for C and C++ source files.
llvm-svn: 62717
2009-01-21 21:30:25 +00:00
Bill Wendling 6cf1f8fd5b Now with RUN line.
llvm-svn: 62716
2009-01-21 21:28:03 +00:00
Bill Wendling ba11cd338b Run this through -simplifycfg and -mem2reg to test only what we need to test.
llvm-svn: 62714
2009-01-21 21:02:27 +00:00
Dan Gohman 922bf52e8e Add a comment to SelectionDAG::ReplaceAllUsesWith to describe a subtle
iteraction with SelectionDAG CSE.

llvm-svn: 62713
2009-01-21 20:50:09 +00:00
Dale Johannesen 1f86498f93 Do not use host floating point types when emitting
ASCII IR; loading and storing these can change the
bits of NaNs on some hosts.  Remove or add warnings
at a few other places using host floating point;
this is a bad thing to do in general.

llvm-svn: 62712
2009-01-21 20:32:55 +00:00
Evan Cheng ec5eb161fd Also favors NOT64r.
llvm-svn: 62710
2009-01-21 19:45:31 +00:00
Chris Lattner a326520190 fix warning in release-asserts mode and spelling of assert.
llvm-svn: 62699
2009-01-21 18:38:18 +00:00
Chris Lattner 41b43da217 add getPointerToGlobal to the C bindings, patch by Lennart Augustsson!
PR3364

llvm-svn: 62697
2009-01-21 18:11:10 +00:00
Chris Lattner 77527f5812 Remove uses of uint32_t in favor of 'unsigned' for better
compatibility with cygwin.  Patch by Jay Foad!

llvm-svn: 62695
2009-01-21 18:09:24 +00:00
Dan Gohman 7e6b932f18 Simplify ReduceLoadWidth's logic: it doesn't need several different
special cases after producing the new reduced-width load, because the
new load already has the needed adjustments built into it. This fixes
several bugs due to the special cases, including PR3317.

llvm-svn: 62692
2009-01-21 15:17:51 +00:00
Dan Gohman b43c8996f2 Fix a recent regression. ClrOpcode is not set for i8; for i8, if
we want to clear %ah to zero before a division, just use a
zero-extending mov to %al. This fixes PR3366.

llvm-svn: 62691
2009-01-21 14:50:16 +00:00
Mikhail Glushenkov 6a4f729dc9 Mimic gcc behaviour with regard to response files.
llvm-svn: 62688
2009-01-21 13:14:02 +00:00
Mikhail Glushenkov 1a0c083748 Fix 'llvm-config --libs' output.
Change the naming scheme for llvmc plugins so that they do not appear in
'llvm-config --libs' output.

llvm-svn: 62687
2009-01-21 13:05:00 +00:00
Mikhail Glushenkov fbc89cecad Change the hook API back to prevent memory leaks.
llvm-svn: 62686
2009-01-21 13:04:33 +00:00
Mikhail Glushenkov bf9716e15d Allow hooks with arguments.
llvm-svn: 62685
2009-01-21 13:04:00 +00:00
Duncan Sands d56cf3025f This was causing invalid memory accesses when
generating debug info in the compiler.

llvm-svn: 62684
2009-01-21 11:51:17 +00:00
Duncan Sands 1de451d0d0 Let's try to have our cake and eat it to: move
this test into FrontendC to ensure that llvm-gcc
is available; assemble using "llvm-gcc -xassembler"
rather than "as".

llvm-svn: 62683
2009-01-21 11:37:31 +00:00
Duncan Sands 696f4a8598 Don't rely on grep -w working.
llvm-svn: 62682
2009-01-21 09:41:42 +00:00
Sanjiv Gupta 335ea6cf2a Fixed build warnings. Restoring changes done in 62600, they were lost in 62655.
llvm-svn: 62681
2009-01-21 09:02:46 +00:00
Duncan Sands be7e41481b Cleanup whitespace and comments, and tweak some
prototypes, in operand type legalization.  No
functionality change.

llvm-svn: 62680
2009-01-21 09:00:29 +00:00
Owen Anderson fe48dfa0f2 I accidentally removed this check in an earlier commit, which cause breakage in the pre alloc splitter.
llvm-svn: 62678
2009-01-21 08:18:03 +00:00
Sanjiv Gupta f737337707 Implement LowerOperationWrapper for legalizer.
Also a few signed comparison fixes.

llvm-svn: 62665
2009-01-21 05:44:05 +00:00
Scott Michel ed7d79fce4 CellSPU:
- Ensure that (operation) legalization emits proper FDIV libcall when needed.
- Fix various bugs encountered during llvm-spu-gcc build, along with various
  cleanups.
- Start supporting double precision comparisons for remaining libgcc2 build.
  Discovered interesting DAGCombiner feature, which is currently solved via
  custom lowering (64-bit constants are not legal on CellSPU, but DAGCombiner
  insists on inserting one anyway.)
- Update README.

llvm-svn: 62664
2009-01-21 04:58:48 +00:00
Sanjiv Gupta a70798cc9a Allow targets to legalize operations (with illegal operands) that produces multiple values. For example, a load with an illegal operand (a load produces two values, a value and chain).
llvm-svn: 62663
2009-01-21 04:48:39 +00:00
Evan Cheng 201501995f Favors generating "not" over "xor -1". For example.
unsigned test(unsigned a) {
  return ~a;
}
llvm used to generate:
movl    $4294967295, %eax
xorl    4(%esp), %eax

Now it generates:
movl      4(%esp), %eax
notl      %eax

It's 3 bytes shorter.

llvm-svn: 62661
2009-01-21 02:09:05 +00:00
Dale Johannesen 287b4bc44e Disable on x86_64 until I figure out what's wrong.
llvm-svn: 62660
2009-01-21 02:08:30 +00:00
Dale Johannesen b5721632ee Make special cases (0 inf nan) work for frem.
Besides APFloat, this involved removing code
from two places that thought they knew the
result of frem(0., x) but were wrong.

llvm-svn: 62645
2009-01-21 00:35:19 +00:00
Owen Anderson be7a29de0b Be more aggressive about renumbering vregs after splitting them.
llvm-svn: 62639
2009-01-21 00:13:28 +00:00
Devang Patel 19f2dd794e Encode member accessibility.
llvm-svn: 62638
2009-01-21 00:08:04 +00:00
Devang Patel 6bbacbe372 Appropriately mark fowrad decls.
llvm-svn: 62625
2009-01-20 22:27:02 +00:00
Devang Patel 6fbec1c230 Need compile unit to find location.
llvm-svn: 62624
2009-01-20 22:26:11 +00:00
Dale Johannesen e75fdb0510 Calls to fmod, it turns out, are constant-folded by
invoking the host fmod, not by lowering to frem and
constant-folding that.  Fix this so it tests what I
want to test.

llvm-svn: 62622
2009-01-20 21:58:13 +00:00
Chris Lattner f8a8c13c1e Don't bother running the assembler, we don't know that it will be configured
for whatever llc defaults to.  This fixes PR3363

llvm-svn: 62619
2009-01-20 21:41:53 +00:00
Evan Cheng f1e873a221 Fix PR3243: a LiveVariables bug. When HandlePhysRegKill is checking whether the last reference is also the last def (i.e. dead def), it should also check if last reference is the current machine instruction being processed. This can happen when it is processing a physical register use and setting the current machine instruction as sub-register's last ref.
llvm-svn: 62617
2009-01-20 21:25:12 +00:00
Duncan Sands 363501d09b Fix typo. Patch by Alexei Svitkine.
llvm-svn: 62616
2009-01-20 21:20:23 +00:00
Bill Wendling 2395916c87 Use "SINT_TO_FP" instead of "UINT_TO_FP" when getting the exponent. This was
causing the limited precision stuff to produce the wrong result for values in
the range [0, 1).

llvm-svn: 62615
2009-01-20 21:17:57 +00:00
Devang Patel bd7743d772 Fix struct member's debug info.
llvm-svn: 62610
2009-01-20 21:02:02 +00:00
Evan Cheng 4022b7c3f4 Add test case for PR3154.
llvm-svn: 62604
2009-01-20 19:29:54 +00:00
Devang Patel bf7c6a90f5 indentation...
llvm-svn: 62603
2009-01-20 19:23:29 +00:00
Devang Patel 2333409d06 Need only one set of debug info versions enum.
llvm-svn: 62602
2009-01-20 19:22:03 +00:00
Evan Cheng c544cb0eca Change TargetInstrInfo::isMoveInstr to return source and destination sub-register indices as well.
llvm-svn: 62600
2009-01-20 19:12:24 +00:00
Devang Patel 72854c3811 zap white spaces.
llvm-svn: 62598
2009-01-20 19:08:39 +00:00
Devang Patel 6befc4d34e Fix global variable's address in a DIE.
llvm-svn: 62596
2009-01-20 18:55:39 +00:00
Devang Patel f0dae1aae3 Enable debug info for enums.
llvm-svn: 62594
2009-01-20 18:35:14 +00:00
Dale Johannesen fe750179ff Add an IEEE remainder function, which is not
fully implemented yet and not used.  This is
mainly to clarify that APFloat::mod implements
C fmod, not remainder.

llvm-svn: 62593
2009-01-20 18:35:05 +00:00
Chris Lattner 17844c7a88 improve compatibility with various versions of graphviz, patch by
Patrick Boettcher!

llvm-svn: 62592
2009-01-20 18:25:03 +00:00
Chris Lattner ca4881aeca eliminate use of uint32_t to improve compatibility with cygwin
llvm-svn: 62591
2009-01-20 18:23:14 +00:00
Chris Lattner 4612ae1f8e Eliminate use of uint32_t to improve compatibility with cygwin
llvm-svn: 62590
2009-01-20 18:22:57 +00:00
Devang Patel 120e962243 Enable debug info for composite types.
llvm-svn: 62589
2009-01-20 18:13:03 +00:00
Duncan Sands 489c5484d3 Check that the "don't barf on k8" fix is not
accidentally reverted again.

llvm-svn: 62587
2009-01-20 18:08:39 +00:00
Evan Cheng 63f9e249ba Spacing
llvm-svn: 62584
2009-01-20 17:30:40 +00:00
Bill Wendling a908b60fb2 Temporarily XFAIL until this can be looked at. r62557 is what caused it to start failing.
llvm-svn: 62578
2009-01-20 10:28:39 +00:00
Duncan Sands cd3fbfb460 If a vector is empty, you're not allowed to access any
elements, even if it is only to take the address.  Test:
break-anti-dependencies.ll with ENABLE_EXPENSIVE_CHECKS.

llvm-svn: 62576
2009-01-20 09:05:19 +00:00
Evan Cheng 6cdcf1eb73 Refactor code. No functionality change.
llvm-svn: 62573
2009-01-20 06:44:16 +00:00
Bill Wendling 1d9c8e5522 Testcase for limited precision stuff.
llvm-svn: 62572
2009-01-20 06:23:59 +00:00
Bill Wendling 786a683441 Shift types need to match.
llvm-svn: 62571
2009-01-20 06:10:42 +00:00
Chris Lattner c59945b4bd another fix for PR3354
llvm-svn: 62561
2009-01-20 01:15:41 +00:00
Dan Gohman 83d2e066c1 Add a README entry noticed while investigating PR3216.
llvm-svn: 62558
2009-01-20 01:07:33 +00:00
Dan Gohman 161b7b66ac Fix a dagcombine to not generate loads of non-round integer types,
as its comment says, even in the case where it will be generating
extending loads. This fixes PR3216.

llvm-svn: 62557
2009-01-20 01:06:45 +00:00
Devang Patel af6a3748c7 Do not use DenseMap because the iterator is invalidated while constructing types. After all there was a reason why std::map was used initially!
llvm-svn: 62555
2009-01-20 00:58:55 +00:00
Nick Lewycky c94134dc96 Regenerate.
BUILT WITH WRONG VERSION OF AUTOCONF! Somebody please regenerate with an
approved version. Thanks!

llvm-svn: 62554
2009-01-20 00:52:24 +00:00
Nick Lewycky 766ac10452 Make the Interpreter use libffi if it's available. Patch from Alexei Svitkine!
This requires a rebuild of 'configure' itself. I will be committing that next, but
built with the wrong version of autoconf. Somebody who has the right one, please update
it.

As a side-note, because of the way autoconf works, all built tools will link against
libffi, not just lli. If you know how to fix this, please let me know ...

llvm-svn: 62553
2009-01-20 00:51:40 +00:00
Evan Cheng 8f79775a66 Make linear scan's trivial coalescer slightly more aggressive.
llvm-svn: 62547
2009-01-20 00:16:18 +00:00
Bill Wendling caf1d22243 Doxygen-ify comments.
llvm-svn: 62546
2009-01-19 23:43:56 +00:00
Devang Patel 44afc82ebe Verify debug info.
llvm-svn: 62545
2009-01-19 23:21:49 +00:00
Chris Lattner ea9f1d3c47 Fix a problem exposed by PR3354: simplifycfg was making a potentially
trapping instruction be executed unconditionally.

llvm-svn: 62541
2009-01-19 23:03:13 +00:00
Dan Gohman 534c8a2d72 Remove SDNode's virtual destructor. This makes it impossible for
SDNode subclasses to keep state that requires non-trivial
destructors, however it was already effectively impossible,
since the destructor isn't actually ever called. There currently
aren't any SDNode subclasses affected by this, and in general
it's desireable to keep SDNode objects light-weight.

This eliminates the last virtual member function in the SDNode
class, so it eliminates the need for a vtable pointer, making
SDNode smaller.

llvm-svn: 62539
2009-01-19 22:39:36 +00:00
Dale Johannesen d067ecd1c7 Move & restructure test per review.
llvm-svn: 62538
2009-01-19 22:33:12 +00:00
Chris Lattner 7eeb1cc605 convert this to an unfoldable potentially trapping constant expr.
llvm-svn: 62536
2009-01-19 22:12:33 +00:00
Chris Lattner 73d7fe5a34 improve compatibility with cygwin, patch by Jay Foad!
llvm-svn: 62535
2009-01-19 22:00:18 +00:00
Chris Lattner dd8ef1bf30 div/rem by zero and div/rem overflow are both undefined according to
langref.  Constant fold them to undef instead of trying to preserve
the trap.  This fixes PR3354.

llvm-svn: 62534
2009-01-19 21:55:26 +00:00
Dan Gohman cd0b1bf0a0 Fix SelectionDAG::ReplaceAllUsesWith to behave correctly when
uses are added to the From node while it is processing From's
use list, because of automatic local CSE. The fix is to avoid
visiting any new uses.

Fix a few places in the DAGCombiner that assumed that after
a RAUW call, the From node has no users and may be deleted.

This fixes PR3018.

llvm-svn: 62533
2009-01-19 21:44:21 +00:00
Chris Lattner 6f34e317e9 Fix PR3353, infinitely jump threading an infinite loop make from switches.
llvm-svn: 62529
2009-01-19 21:20:34 +00:00
Dale Johannesen 740e98704d compile-time fmod was done incorrectly. PR 3316.
llvm-svn: 62528
2009-01-19 21:17:05 +00:00
Devang Patel db3c05533c DebugInfo is a lightweight APIs and consumers are expected to use light objects directly. There is no need to support isa<>, dyn_cast<> etc...
llvm-svn: 62527
2009-01-19 21:13:39 +00:00
Devang Patel 8c8aa2ac29 Verify Intrinsic::dbg_declare.
llvm-svn: 62526
2009-01-19 21:00:48 +00:00
Mike Stump eb1e2006de Add targets to support the installation of clang in isolation.
llvm-svn: 62522
2009-01-19 19:48:23 +00:00
Evan Cheng 44cc554311 DIVREM isel deficiency: If sign bit is known zero, zero out DX/EDX/RDX instead of sign extending the low part (in AX/EAX/RAX) into it.
llvm-svn: 62519
2009-01-19 19:06:11 +00:00
Evan Cheng 0346c04f39 Fix 80 col violations.
llvm-svn: 62518
2009-01-19 18:57:29 +00:00
Evan Cheng 6c02498215 Handle ISD::DECLARE with PIC relocation model.
llvm-svn: 62516
2009-01-19 18:31:51 +00:00
Nick Lewycky ee22611e33 Port this test from dejagnu to unit testing.
The way this worked before was to test APInt by running
"lli -force-interpreter=true" knowing the lli uses APInt under the hood to
store its values. Now, we test APInt directly.

llvm-svn: 62514
2009-01-19 18:08:33 +00:00
Nick Lewycky 030c450fdc Fix typo, sentence fragment.
llvm-svn: 62512
2009-01-19 17:42:33 +00:00
Dan Villiom Podlaski Christiansen faad4168f9 Adding your's truly to CREDITS.TXT
(This is also a test commit.)

llvm-svn: 62511
2009-01-19 15:04:29 +00:00
Bill Wendling 534d2e0bae Temporarily revert r62487. It's causing this error during a release bootstrap of
llvm-gcc. Most likely, it's miscompiling one of the "gen*" programs:

/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./prev-gcc/xgcc -B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./prev-gcc/ -B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.6.0/bin/ -c -g -O2 -mdynamic-no-pic -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -mdynamic-no-pic -DHAVE_CONFIG_H -DGENERATOR_FILE -I. -Ibuild -I../../llvm-gcc.src/gcc -I../../llvm-gcc.src/gcc/build -I../../llvm-gcc.src/gcc/../include -I./../intl -I../../llvm-gcc.src/gcc/../libcpp/include  -I../../llvm-gcc.src/gcc/../libdecnumber -I../libdecnumber -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.obj/include -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/include -DENABLE_LLVM -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.obj/../llvm.src/include  -D_DEBUG  -D_GNU_SOURCE -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS   -o build/gencondmd.o build/gencondmd.c
../../llvm-gcc.src/gcc/config/i386/mmx.md:926: error: expected '}' before ')' token
../../llvm-gcc.src/gcc/config/i386/mmx.md:926: warning: excess elements in struct initializer
../../llvm-gcc.src/gcc/config/i386/mmx.md:926: warning: (near initialization for 'insn_conditions[4]')
../../llvm-gcc.src/gcc/config/i386/mmx.md:926: error: expected '}' before ')' token
../../llvm-gcc.src/gcc/config/i386/mmx.md:926: error: expected ',' or ';' before ')' token
../../llvm-gcc.src/gcc/config/i386/mmx.md:927: error: expected identifier or '(' before ',' token
../../llvm-gcc.src/gcc/config/i386/sse.md:3458: error: expected identifier or '(' before ',' token
...

llvm-svn: 62506
2009-01-19 08:46:20 +00:00
Evan Cheng 8f367e53c7 Minor tweak to LowerUINT_TO_FP_i32. Bias (after scalar_to_vector) has two uses so we should make it the second source operand of ISD::OR so 2-address pass won't have to be smart about commuting.
%reg1024<def> = MOVSDrm %reg0, 1, %reg0, <cp#0>, Mem:LD(8,8) [ConstantPool + 0]
%reg1025<def> = MOVSD2PDrr %reg1024
%reg1026<def> = MOVDI2PDIrm <fi#-1>, 1, %reg0, 0, Mem:LD(4,16) [FixedStack-1 + 0]
%reg1027<def> = ORPSrr %reg1025<kill>, %reg1026<kill>
%reg1028<def> = MOVPD2SDrr %reg1027<kill>
%reg1029<def> = SUBSDrr %reg1028<kill>, %reg1024<kill>
%reg1030<def> = CVTSD2SSrr %reg1029<kill>
MOVSSmr <fi#0>, 1, %reg0, 0, %reg1030<kill>, Mem:ST(4,4) [FixedStack0 + 0]
%reg1031<def> = LD_Fp32m80 <fi#0>, 1, %reg0, 0, Mem:LD(4,16) [FixedStack0 + 0]
RET %reg1031<kill>, %ST0<imp-use,kill>

The reason 2-addr pass isn't smart enough to commute the ORPSrr is because it can't look pass the MOVSD2PDrr instruction.

llvm-svn: 62505
2009-01-19 08:19:57 +00:00
Evan Cheng 7e9ef4d776 Now not UINT_TO_FP is legal (it's marked custom), dag combiner won't
optimize it to a SINT_TO_FP when the sign bit is known zero. X86 isel should perform the optimization itself.

llvm-svn: 62504
2009-01-19 08:08:22 +00:00
Chris Lattner f2bb4ea39c Fix PR3016, a bug which can occur do to an invalid assumption:
we assumed a CFG structure that would be valid when all code in 
the function is reachable, but not all code is necessarily 
reachable.  Do a simple, but horrible, CFG walk to check for this
case.

llvm-svn: 62487
2009-01-19 02:46:28 +00:00
Chris Lattner e381d7026f reduce indentation by using 'continue', no functionality change.
llvm-svn: 62477
2009-01-19 02:07:32 +00:00
Chris Lattner 54f0c61d71 Fix some problems in SpeculativelyExecuteBB. Basically,
because of dead code, a phi could use the speculated instruction
that was not in "BB2".  Make this check explicit and tighten up 
some other corners.  This fixes PR3292.  No testcase becauase this
depends entirely on visitation order of blocks and requires a 
sequence of 8 passes to repro.

llvm-svn: 62476
2009-01-19 00:36:37 +00:00
Chris Lattner e1c01e4e2b Make this a bit more explicit about which cases need the
check.  No functionality change.

llvm-svn: 62474
2009-01-18 23:22:07 +00:00
Chris Lattner 64b7bd7f9e Fix rdar://6505632, an llc crash on 483.xalancbmk
llvm-svn: 62470
2009-01-18 20:35:00 +00:00
Sanjiv Gupta 1d2fc787a9 Few targets like PIC16 wants libcall generation for illegal type i16.
llvm-svn: 62467
2009-01-18 18:25:27 +00:00
Oscar Fuentes 963c975975 CMake: Add lib/Analysis/CaptureTracking.cpp
llvm-svn: 62462
2009-01-18 13:14:11 +00:00
Duncan Sands e0aa0d677d BasicAliasAnalysis and FunctionAttrs were both
doing very similar pointer capture analysis.
Factor out the common logic.  The new version
is from FunctionAttrs since it does a better
job than the version in BasicAliasAnalysis

llvm-svn: 62461
2009-01-18 12:19:30 +00:00
Mon P Wang e9e7abb6b8 Simplify extract element based on comments from Duncan Sands.
llvm-svn: 62459
2009-01-18 06:43:40 +00:00
Nick Lewycky e5be1cd635 Forgot this in the previous checkin: fopen now has nocapture, realloc is
supposed to take two arguments.

llvm-svn: 62457
2009-01-18 04:46:10 +00:00
Nick Lewycky 3ced0dfa69 Fix copy and pasted typos that prevented strtok_r, realloc, getenv, ungetc,
putc, puts, perror, vscanf and vsscanf from getting annotations.

Add annotations for eight printf functions, memalign, pread and pwrite.

On Linux, llvm-gcc sometimes renames strdup, getc, putc, strtok_r, scanf and
sscanf. Match the alternate function names.

Fix a crash annotating opendir.

Don't mark fsetpos's second parameter as nocapture. It's supposed to be
captured.

Do mark fopen's path and mode strings as nocapture. Mark ferror as readonly,
but not fileno which may set errno.

llvm-svn: 62456
2009-01-18 04:34:36 +00:00
Gabor Greif 1b94d420ae add a comment
llvm-svn: 62436
2009-01-18 00:27:21 +00:00
Gabor Greif 20b722fe1c switch over some other methods from indices to iterators
llvm-svn: 62430
2009-01-17 19:46:01 +00:00
Gabor Greif 2269f405b0 make comparisons a bist faster
llvm-svn: 62428
2009-01-17 19:03:45 +00:00
Devang Patel 3f634fe364 Remove tabs.
llvm-svn: 62423
2009-01-17 08:05:14 +00:00
Devang Patel 8ee1c9f220 Refactor code
llvm-svn: 62421
2009-01-17 08:01:33 +00:00
Bill Wendling 9880a2cb2f Testcase for last commit.
llvm-svn: 62418
2009-01-17 07:42:44 +00:00
Bill Wendling f9291cf43c Extend thi
llvm-svn: 62415
2009-01-17 07:40:19 +00:00
Evan Cheng bf38a5e540 Fix MatchAddress bug that's preventing negative displacement from being folded in 64-bit mode.
llvm-svn: 62413
2009-01-17 07:09:27 +00:00
Devang Patel bf7d432ce4 Assign argument type to appropriate DIE.
llvm-svn: 62412
2009-01-17 06:57:25 +00:00
Devang Patel 2e32f71dfa Remove dead code.
llvm-svn: 62410
2009-01-17 06:51:37 +00:00
Devang Patel d250ef911f Disable composite type debug info for now.
llvm-svn: 62406
2009-01-17 05:05:12 +00:00
Bill Wendling dd40f26877 Temporarily revert my last change. It is causing a bootstrap failure.
llvm-svn: 62405
2009-01-17 04:23:51 +00:00
Bill Wendling 4d5275905e Implement a special algorithm for converting uint_to_fp for i32 values on
X86. This code:

void f() {
  uint32_t x;
  float y = (float)x;
}

used to be:

     movl     %eax, -8(%ebp)
     movl     [2^52 double], -4(%ebp)
     movsd    -8(%ebp), %xmm0
     subsd    [2^52 double], %xmm0
     cvtsd2ss %xmm0, %xmm0

Is now:

   movsd        [2^52 double], %xmm0
   movsd        %xmm0, %xmm1
   movd         %ecx, %xmm2
   orps         %xmm2, %xmm1
   subsd        %xmm0, %xmm1
   cvtsd2ss     %xmm1, %xmm0

This is faster on X86. Note that there's an extra load of %xmm0 into %xmm1. That
will be fixed in a later coalescer fix.

llvm-svn: 62404
2009-01-17 03:56:04 +00:00
Oscar Fuentes 90cc7050f2 CMake: Add lib/Target/IA64/IA64Subtarget.cpp
llvm-svn: 62394
2009-01-17 01:50:32 +00:00
Gabor Greif 1c6549db6f speed up iterative loop by using iterators. changes direction, but functionally equivalent
if this works out, I'll change the others next.

llvm-svn: 62385
2009-01-17 00:14:25 +00:00
Gabor Greif f1abfdccdc introduce typedef for complicated vector, and use it too
llvm-svn: 62384
2009-01-17 00:09:08 +00:00
Mon P Wang ca6d6dea0b Simplify extract element of a scalar to vector.
llvm-svn: 62383
2009-01-17 00:07:25 +00:00
Gabor Greif 8c573f7e49 typo
llvm-svn: 62377
2009-01-16 23:08:50 +00:00
Evan Cheng 41e9f6a854 Fix PPC ISD::Declare isel and eliminate the need for PPCTargetLowering::LowerGlobalAddress to check if isVerifiedDebugInfoDesc() is true. Given the recent changes, it would falsely return true for a lot of GlobalAddressSDNode's.
llvm-svn: 62373
2009-01-16 22:57:32 +00:00
Mikhail Glushenkov cbc26fdb6e Support for multi-valued options in CommandLine
Makes possible to specify options that take multiple arguments (a-la
-sectalign on Darwin). See documentation for details.

llvm-svn: 62372
2009-01-16 22:54:19 +00:00
Dan Gohman 703a6c7274 Give IA64 a TargetSubtarget subclass, so that it can
implement getSubtargetImpl.

llvm-svn: 62369
2009-01-16 22:49:36 +00:00
Dan Gohman 5f8a2598b2 Instead of adding dependence edges between terminator instructions
and every other instruction in their blocks to keep the terminator
instructions at the end, teach the post-RA scheduler how to operate
on ranges of instructions, and exclude terminators from the range
of instructions that get scheduled.

Also, exclude mid-block labels, such as EH_LABEL instructions, and
schedule code before them separately from code after them. This
fixes problems with the post-RA scheduler moving code past
EH_LABELs.

llvm-svn: 62366
2009-01-16 22:10:20 +00:00
Dan Gohman 157e008816 If an anti-dependence uses a non-allocatable register, set AntiDepReg
to 0, to ensure that the subsequent code doesn't try to break the
dependence.

llvm-svn: 62365
2009-01-16 21:57:43 +00:00
Dan Gohman 38978ba972 Use the getNode() accessor instead of accessing the Node
member directly, which is private as of r55504.

llvm-svn: 62364
2009-01-16 21:47:21 +00:00
Dan Gohman f1002495e3 Disable the post-RA scheduler on this test, since it uses a
simple %prcontext which doesn't find what it's looking for
if the scheduler has rearranged the instructions.

llvm-svn: 62363
2009-01-16 21:40:12 +00:00
Dan Gohman 014142fd1a Fix the check for an empty basic block to check for an empty SUnits
array instead, since this is what the scheduler actually cares about.
And remove a check that is unnecessary, since it can assume that
SUnits isn't empty.

llvm-svn: 62362
2009-01-16 21:37:14 +00:00
Dan Gohman 3289983d69 Avoid triggering an assertion failure when an instruction pattern
is a leaf node. Patch by Brandner!

llvm-svn: 62361
2009-01-16 21:30:55 +00:00
Chris Lattner 41828cdb0a new nodes should be added to the worklist, not old nodes.
llvm-svn: 62359
2009-01-16 21:15:56 +00:00
Devang Patel 5d7813cb2d Fix comments.
llvm-svn: 62358
2009-01-16 21:07:53 +00:00
Evan Cheng 968e2e7b3d CreateVirtualRegisters does trivial copy coalescing. If a node def is used by a single CopyToReg, it reuses the virtual register assigned to the CopyToReg. This won't work for SDNode that is a clone or is itself cloned. Disable this optimization for those nodes or it can end up with non-SSA machine instructions.
llvm-svn: 62356
2009-01-16 20:57:18 +00:00
Chris Lattner 6bfc77d8fe remove a dead method.
llvm-svn: 62354
2009-01-16 20:26:53 +00:00
Chris Lattner 762edbc074 don't assert and die on out of range (undefined) shifts. This fixes
PR3334.

llvm-svn: 62352
2009-01-16 20:17:02 +00:00
Chris Lattner db2d9613d2 Fix PR3335 by not turning a store to one address space into a store to another.
llvm-svn: 62351
2009-01-16 20:12:52 +00:00
Chris Lattner 733256fe31 reduce indentation by using early exits, no functionality change.
llvm-svn: 62350
2009-01-16 20:08:59 +00:00
Devang Patel 0d733b5d9f Use lightweight DebugInfo objects directly.
llvm-svn: 62341
2009-01-16 19:28:14 +00:00
Bill Wendling e04334730e Add support for non-zero __builtin_return_address values on X86.
llvm-svn: 62338
2009-01-16 19:25:27 +00:00
Evan Cheng 5f936ef1ac Change isGVCompilationDisabled() semantics again. It should abort on any GV that's not constant whether it's "internal" or not. In a server / client environment, GV is returned in the same block of memory as code. However, the memory might not be writable.
llvm-svn: 62336
2009-01-16 19:14:49 +00:00
Gabor Greif 4b79e47f94 use specialized accessor instead of plain getOperand(0)
llvm-svn: 62330
2009-01-16 18:40:27 +00:00
Devang Patel 867df54606 Align source code.
llvm-svn: 62328
2009-01-16 18:01:58 +00:00
Dan Gohman b903071735 Fix a "comparison between signed and unsigned integer expressions"
warning.

llvm-svn: 62327
2009-01-16 17:55:08 +00:00
Nick Lewycky 032e6dd3c5 Reinstate r60509 from Dale:
Make the debugging dump be a full line.

llvm-svn: 62325
2009-01-16 17:07:22 +00:00
Duncan Sands 230c35eda2 Get this building with gcc-4.4.
llvm-svn: 62322
2009-01-16 15:54:57 +00:00
Duncan Sands 35e43c12f1 Grammar fix.
llvm-svn: 62319
2009-01-16 09:29:46 +00:00
Mikhail Glushenkov 6e8d814d36 Registry.h should not depend on CommandLine.h.
Split Support/Registry.h into two files so that we have less to
recompile every time CommandLine.h is changed.

llvm-svn: 62312
2009-01-16 07:02:28 +00:00
Evan Cheng 2d9e40ed24 This is now passing.
llvm-svn: 62308
2009-01-16 06:59:14 +00:00
Mikhail Glushenkov b2f9a73029 Delete trailing whitespace.
llvm-svn: 62307
2009-01-16 06:53:46 +00:00
Sanjiv Gupta 3227928eeb Reverting back 62301.
llvm-svn: 62304
2009-01-16 05:06:35 +00:00
Sanjiv Gupta 30bd194504 Few targets do not have a single directive to emit global constants.
For example, PIC16 needs to break a long or int constant into mulitple parts and emit multiple directives. So Allow targets to overried EmitConstantValueOnly().

llvm-svn: 62301
2009-01-16 02:45:46 +00:00
Evan Cheng d243c0e3d9 ARMCompilationCallback should not save / restore vfp registers if vfp is not available.
llvm-svn: 62299
2009-01-16 02:16:37 +00:00
Devang Patel e067a7988c Validate debug info values only if DwarfDebug is initialized.
llvm-svn: 62298
2009-01-16 02:15:14 +00:00
Evan Cheng beac6f8b0c Clean up previous cast optimization a bit. Also make zext elimination a bit more aggressive: if it's not necessary to emit an AND (i.e. high bits are already zero), it's profitable to evaluate the operand at a different type.
llvm-svn: 62297
2009-01-16 02:11:43 +00:00
Dan Gohman 3e35fe8968 Add support for instructions with multiple ComplexPatterns, by
adding more information to the temporary variables names so that
they don't conflict.

llvm-svn: 62296
2009-01-16 02:05:52 +00:00
Devang Patel 32fed1c0ef Any debug info symbol is only valid if atleast one compile unit is seen.
llvm-svn: 62294
2009-01-16 01:49:46 +00:00
Dan Gohman ceac7c34f1 Initial hazard recognizer support in post-pass scheduling. This includes
a new toy hazard recognizier heuristic which attempts to direct the
scheduler to avoid clumping large groups of loads or stores too densely.

llvm-svn: 62291
2009-01-16 01:33:36 +00:00
Devang Patel fa1b408b3b Do not stumble over forward declared struct member.
llvm-svn: 62288
2009-01-16 00:50:53 +00:00
Devang Patel 76d190cf4a Validate dbg_* intrinsics before lowering them.
llvm-svn: 62286
2009-01-15 23:41:32 +00:00
Mon P Wang e248edff1b Added missing support to widen an operand from a bit convert.
llvm-svn: 62285
2009-01-15 22:43:38 +00:00
Dan Gohman 7e105f0b12 Generalize the HazardRecognizer interface so that it can be used
to support MachineInstr-based scheduling in addition to
SDNode-based scheduling.

llvm-svn: 62284
2009-01-15 22:18:12 +00:00
Dan Gohman 79618d1de8 Simplify the MachineLICM pass by having it only traverse outer
loops, hoisting instructions all the way out in one step rather
than hoisting them one nest level at a time. Also, make a few
other code simplifications. This speeds up MachineLICM
by several fold.

llvm-svn: 62283
2009-01-15 22:01:38 +00:00
Rafael Espindola f2831d6cd1 Fix Alpha test and support for private linkage.
llvm-svn: 62282
2009-01-15 21:51:46 +00:00
Mon P Wang ebfafee903 Expand insert/extract of a <4 x i32> with a variable index.
llvm-svn: 62281
2009-01-15 21:10:20 +00:00
Rafael Espindola 6de96a1b5d Add the private linkage.
llvm-svn: 62279
2009-01-15 20:18:42 +00:00
Devang Patel 851cdaf1fd Use lightweight DebugInfo objects directly.
llvm-svn: 62276
2009-01-15 19:26:23 +00:00
Dan Gohman 619ef48a52 Move a few containers out of ScheduleDAGInstrs::BuildSchedGraph
and into the ScheduleDAGInstrs class, so that they don't get
destructed and re-constructed for each block. This fixes a
compile-time hot spot in the post-pass scheduler.

To help facilitate this, tidy and do some minor reorganization
in the scheduler constructor functions.

llvm-svn: 62275
2009-01-15 19:20:50 +00:00
Nuno Lopes 04fe2f0a95 add comment to explain my previous commit, as asked by Chris
llvm-svn: 62272
2009-01-15 18:40:57 +00:00
Gabor Greif 5aa1922614 avoid using iterators when they get invalidated potentially
this fixes PR3332

llvm-svn: 62271
2009-01-15 18:40:09 +00:00
Devang Patel 8bdc698336 Use variable's context to identify respective DbgScope.
Use light weight DebugInfo object directly.

llvm-svn: 62269
2009-01-15 18:25:17 +00:00
Dan Gohman dbb22a4483 Add load-folding table entries for BT*ri8 instructions.
llvm-svn: 62267
2009-01-15 17:57:09 +00:00
Dan Gohman 307954ac69 Make getWidenVectorType const; this file was missed in the
previous commit.

llvm-svn: 62266
2009-01-15 17:39:39 +00:00
Dan Gohman 0ad43ca6e5 Make getWidenVectorType const.
llvm-svn: 62265
2009-01-15 17:34:08 +00:00
Evan Cheng ff716cb342 Eliminate a redundant check.
llvm-svn: 62264
2009-01-15 17:09:07 +00:00
Evan Cheng 60e19a46f2 - Teach CanEvaluateInDifferentType of this xform: sext (zext ty1), ty2 -> zext ty2
- Looking at the number of sign bits of the a sext instruction to determine  whether new trunc + sext pair should be added when its source is being evaluated in a different type.

llvm-svn: 62263
2009-01-15 17:01:23 +00:00
Dan Gohman 91febd1330 More consts on TargetLowering references.
llvm-svn: 62262
2009-01-15 16:58:17 +00:00
Dan Gohman 4bdf021e05 Use const with TargetLowering references in a few more places.
llvm-svn: 62260
2009-01-15 16:43:02 +00:00
Dan Gohman 02b93136e9 Const-qualify getPreIndexedAddressParts and friends.
llvm-svn: 62259
2009-01-15 16:29:45 +00:00
Richard Osborne 40119780a8 Don't fold address calculations which use negative offsets into
the ADDRspii addressing mode.

llvm-svn: 62258
2009-01-15 11:32:30 +00:00
Richard Osborne 502b91a35c Update the operands used when building LDAWSP instructions to match the .td
changes in the last commit.

llvm-svn: 62257
2009-01-15 11:18:53 +00:00
Gabor Greif 08a4c281cb minor refactoring: use a more specific API
llvm-svn: 62256
2009-01-15 11:10:44 +00:00
Scott Michel a292fc6d6b - Convert remaining i64 custom lowering into custom instruction emission
sequences in SPUDAGToDAGISel.cpp and SPU64InstrInfo.td, killing custom
  DAG node types as needed.
- i64 mul is now a legal instruction, but emits an instruction sequence
  that stretches tblgen and the imagination, as well as violating laws of
  several small countries and most southern US states (just kidding, but
  looking at a function with 80+ parameters is really weird and just plain
  wrong.)
- Update tests as needed.

llvm-svn: 62254
2009-01-15 04:41:47 +00:00
Mikhail Glushenkov bc39dff6e5 Some small documentation fixes.
llvm-svn: 62251
2009-01-15 02:42:40 +00:00
Mikhail Glushenkov bf78b20490 Clarify the documentation a bit.
llvm-svn: 62249
2009-01-15 02:04:54 +00:00
Chris Lattner 8fb9480ed2 Fix PR3325, a miscompilation of invokes by IPSCCP. Patch by Jay Foad!
llvm-svn: 62244
2009-01-14 21:01:16 +00:00