Commit Graph

38364 Commits

Author SHA1 Message Date
Scott Michel 376acf4aaa Remove unused variable
llvm-svn: 49838
2008-04-17 01:30:44 +00:00
Evan Cheng c8c3a899c0 Fix a sub-register indice propagation bug.
llvm-svn: 49832
2008-04-17 00:06:42 +00:00
Scott Michel f66cb3696a Workaround for PR2207, in which pred_iterator assert gets triggered due to a
wee problem in Xcode 2.[45]/gcc 4.0.1.

llvm-svn: 49831
2008-04-16 23:46:39 +00:00
Evan Cheng 147cb764b5 Don't forget about sub-register indices when rematting instructions.
llvm-svn: 49830
2008-04-16 23:44:44 +00:00
Dale Johannesen c1279f5e4b Unbreak build on x86-64.
llvm-svn: 49822
2008-04-16 22:24:33 +00:00
Dan Gohman 5afb42a41d Fix a copy+paste error in a comment.
llvm-svn: 49820
2008-04-16 21:57:29 +00:00
Nicolas Geoffray a7557dfe71 Correlate stubs with functions in JIT: when emitting a stub, the JIT tells the memory manager which function
the stub will resolve.

llvm-svn: 49814
2008-04-16 20:46:05 +00:00
Eric Christopher b7066c7539 Fix comment.
llvm-svn: 49813
2008-04-16 20:45:31 +00:00
Evan Cheng 59aa126e48 After reading memory that's already freed.
llvm-svn: 49810
2008-04-16 20:24:25 +00:00
Nicolas Geoffray ae84bbdbed Infrastructure for getting the machine code size of a function and an instruction. X86, PowerPC and ARM are implemented
llvm-svn: 49809
2008-04-16 20:10:13 +00:00
Evan Cheng a15cee1036 Initialize X863DNowLevel.
llvm-svn: 49808
2008-04-16 19:03:02 +00:00
Evan Cheng 23f12757ed Fix PR2226. Avoid using uninitialized variables.
llvm-svn: 49807
2008-04-16 18:48:43 +00:00
Bill Wendling ac375522e4 Add "empty()" method to sys::Path and remove unnecessary whitespace.
Patch by Mikhail Glushenkov!

llvm-svn: 49803
2008-04-16 18:27:02 +00:00
Evan Cheng 7b989d853e Really test what's intended.
llvm-svn: 49802
2008-04-16 18:21:55 +00:00
Evan Cheng 8dc8a8d8af Empty basic block should have an empty range.
llvm-svn: 49800
2008-04-16 18:01:08 +00:00
Dale Johannesen 4675c4e7e7 Don't read off end of the input array.
llvm-svn: 49799
2008-04-16 17:31:41 +00:00
Roman Levenstein a3ee1a38a3 Ongoing work on improving the instruction selection infrastructure:
Rename SDOperandImpl back to SDOperand.
Introduce the SDUse class that represents a use of the SDNode referred by
an SDOperand. Now it is more similar to Use/Value classes.

Patch is approved by Dan Gohman.

llvm-svn: 49795
2008-04-16 16:15:27 +00:00
Dan Gohman bd2613d382 Fix a memory leak in llc.
llvm-svn: 49793
2008-04-16 15:56:26 +00:00
Gabor Greif 522dc99164 merge of r49785 (from branches/ggreif/use-diet): pass V to dyn_cast by const reference, this avoids copy-constructing and destructing all the time. especially important if these constructors are not accessible
llvm-svn: 49787
2008-04-16 11:43:47 +00:00
Evan Cheng e45b8f89c5 Rewrite LiveVariable liveness computation. The new implementation is much simplified. It eliminated the nasty recursive routines and removed the partial def / use bookkeeping. There is also potential for performance improvement by replacing the conservative handling of partial physical register definitions. The code is currently disabled until live interval analysis is taught of the name scheme.
This patch also fixed a couple of nasty corner cases.

llvm-svn: 49784
2008-04-16 09:46:40 +00:00
Evan Cheng 6c17773ccc Code clean up.
llvm-svn: 49783
2008-04-16 09:41:59 +00:00
Owen Anderson 81f7584c4e XFAIL this test for the moment. The real solution is to prevent ADCE
from transforming loops and adding a separate loop pass for removing
loops with know trip counts.  Until that happens, ADCE is miscompiling this code.

llvm-svn: 49769
2008-04-16 04:25:42 +00:00
Owen Anderson 57236b58f7 Major repairs to the post-dominators implementation. Patch from Florian Brandner!
llvm-svn: 49768
2008-04-16 04:21:16 +00:00
Chris Lattner 08623f21ae fix off by one error.
llvm-svn: 49766
2008-04-16 04:10:37 +00:00
Chris Lattner ee61054d00 give smallstring some methods to do 'itoa'.
llvm-svn: 49765
2008-04-16 04:05:02 +00:00
Dan Gohman d43d3beeb0 Add support for the form of the SSE41 extractps instruction that
puts its result in a 32-bit GPR.

llvm-svn: 49762
2008-04-16 02:32:24 +00:00
Dan Gohman 8c99ccaf96 Recreate the size SDNode instead of reusing the old one in the x86
memcpy lowering code; this ensures that the size node has the desired
result type. This fixes a regression from r49572 with @llvm.memcpy.i64
on x86-32.

llvm-svn: 49761
2008-04-16 01:32:32 +00:00
Evan Cheng e29e9774a4 Avoid read after free.
llvm-svn: 49760
2008-04-16 01:22:28 +00:00
Dan Gohman 3dd8ba6235 Remove X86_64SRet; it isn't used anymore.
llvm-svn: 49759
2008-04-16 00:24:30 +00:00
Dan Gohman 01a5d36d9d Add movd instructions to move from MMX registers
to 64-bit GPR registers on x86-64.

llvm-svn: 49757
2008-04-15 23:55:07 +00:00
Dan Gohman 82b6673c44 Fix the new scheduler assertion checks to work when
the scheduler has inserted no-ops. This fixes
the 2006-07-03-schedulers.ll regression on ppc32.

llvm-svn: 49747
2008-04-15 22:40:14 +00:00
Bill Wendling 837b1dcf36 Apple GCC 4.2 builds things differently. It no longer spawns a bunch of
processes, but requires the project to use -j.

llvm-svn: 49744
2008-04-15 21:33:52 +00:00
Chuck Rose III c6a47e8a79 VisualStudio project files updated. #include <algorithm> added to make VisualStudio happy. Also had to undefine setjmp because of #include <csetjmp> turning setjmp into _setjmp in VisualStudio.
llvm-svn: 49743
2008-04-15 21:27:11 +00:00
Dale Johannesen 7b96b2e7da Make 64-to-32 bit truncations explicit (prevent warnings).
All values here fit in 32 bits.

llvm-svn: 49736
2008-04-15 18:44:59 +00:00
Dale Johannesen 8fc8a272e0 Don't assume a tail call can't reference a byval
argument to the outer function, this isn't correct.

llvm-svn: 49731
2008-04-15 17:41:34 +00:00
Dan Gohman 53d3241b52 Use gv's --spartan option, which trades away an extra row of UI buttons
for more space for displaying the graph.

llvm-svn: 49730
2008-04-15 17:27:05 +00:00
Chris Lattner a5eb45bcfd A couple minor fixes suggested by Matthijs Kooijman
llvm-svn: 49729
2008-04-15 16:59:22 +00:00
Nicolas Geoffray 7000c8f1aa Change Divided flag to Split, as suggested by Evan
llvm-svn: 49715
2008-04-15 08:08:50 +00:00
Evan Cheng ba7126064a Sort sub-registers and super-registers lists according to super-sub register relations. e.g. X86::RAX sub-register list is EAX, AX, AL, AH (order of last two are not guaranteed).
llvm-svn: 49714
2008-04-15 07:56:03 +00:00
Bill Wendling 97632952c9 Install into the directory
llvm-svn: 49713
2008-04-15 07:02:59 +00:00
Dan Gohman 4370f26750 Treat EntryToken nodes as "passive" so that they aren't added to the
ScheduleDAG; they don't correspond to any actual instructions so they
don't need to be scheduled.

This fixes a bug where the EntryToken was being scheduled multiple
times in some cases, though it ended up not causing any trouble because 
EntryToken doesn't expand into anything. With this fixed the schedulers
reliably schedule the expected number of units, so we can check this
with an assertion.

This requires a tweak to test/CodeGen/X86/loop-hoist.ll because it
ends up getting scheduled differently in a trivial way, though it was
enough to fool the prcontext+grep that the test does.

llvm-svn: 49701
2008-04-15 01:22:18 +00:00
Dan Gohman e5f21cea3e In -view-sunit-dags, display "special" chain dependencies as cyan
instead of blue to distinguish them from regular dependencies.

llvm-svn: 49696
2008-04-14 23:15:07 +00:00
Dan Gohman 4fff979a43 Remove unnecessary <sstream> includes.
llvm-svn: 49681
2008-04-14 20:40:47 +00:00
Dan Gohman 5b61a288a7 Avoid creating MERGE_VALUES nodes for single values.
llvm-svn: 49676
2008-04-14 18:43:25 +00:00
Dan Gohman 2cd8e38ab9 Teach AliasSetTracker about VAArgInst.
llvm-svn: 49674
2008-04-14 18:34:50 +00:00
Dan Gohman e36714c0b4 Minor whitespace and comment cleanups.
llvm-svn: 49671
2008-04-14 18:26:16 +00:00
Dan Gohman 5e6ce7bb33 In the special case, call the comparison function instead of
manually performing the comparison. This allows the special
case to work correctly even in the case where someone is
experimenting with a different comparison function :-).

llvm-svn: 49670
2008-04-14 18:23:56 +00:00
Dan Gohman b37dab1360 Upgrade these tests for the current intrinsic prototypes.
llvm-svn: 49669
2008-04-14 18:19:18 +00:00
Dale Johannesen ea3aa5bf11 Remove -unwind-tables-optional everywhere, since
this is now the default.

llvm-svn: 49667
2008-04-14 17:56:54 +00:00
Dan Gohman 2505d86783 Fix const-correctness issues with the SrcValue handling in the
memory intrinsic expansion code.

llvm-svn: 49666
2008-04-14 17:55:48 +00:00
Dale Johannesen 876224b1e8 Reverse sense of unwind-tables option. This means
stack tracebacks on Darwin x86-64 won't work by default;
nevertheless, everybody but me thinks this is a good idea.

llvm-svn: 49663
2008-04-14 17:54:17 +00:00
Dan Gohman c22ede25c4 Clean up some comments.
llvm-svn: 49661
2008-04-14 17:45:20 +00:00
Owen Anderson 7629b71dd4 Revert r49614. As Dan pointed out, some of these aren't correct.
llvm-svn: 49657
2008-04-14 17:38:21 +00:00
Nicolas Geoffray db0ea1ff4e Fix /test/CodeGen/PowerPC/big-endian-actual-args.ll for linux/ppc32
llvm-svn: 49652
2008-04-14 17:17:14 +00:00
Chris Lattner f87e052128 improve diagnostics in call parsing, patch suggested by
Matthijs Kooijman

llvm-svn: 49648
2008-04-14 16:44:41 +00:00
Dan Gohman 19bce7f18c VAArg may trap.
llvm-svn: 49646
2008-04-14 15:07:08 +00:00
Duncan Sands 6c503f9a65 Initial libcall support for LegalizeTypes. This is
much simpler than in LegalizeDAG because calls are
not yet expanded into call sequences: that happens
after type legalization has finished.

llvm-svn: 49634
2008-04-14 06:48:48 +00:00
Chris Lattner cc9709cff4 add a new CallGraphNode::removeCallEdgeFor method, tidy some comments.
llvm-svn: 49617
2008-04-13 19:41:25 +00:00
Chris Lattner 0e0bbb626d Add support for equality comparison of CallSite's.
llvm-svn: 49616
2008-04-13 19:40:26 +00:00
Owen Anderson 1f6fbc4bc3 Replace calls of the form V1->setName(V2->getName()) with V1->takeName(V2),
which is significantly more efficient.

llvm-svn: 49614
2008-04-13 19:15:17 +00:00
Duncan Sands 0a8a4c4a0c LegalizeTypes can sometimes have deleted nodes
in its maps.  Add some sanity checks that catch
this kind of thing.  Hopefully these can be
removed one day (once all problems are fixed!)
but for the moment it seems wise to have them in.

llvm-svn: 49612
2008-04-13 16:04:03 +00:00
Nicolas Geoffray dcc2eda5fc Add a divided flag for the first piece of an argument divided into mulitple parts. Fixes PR1643
llvm-svn: 49611
2008-04-13 13:40:22 +00:00
Owen Anderson b1e8bf2cad The functionality being tested was removed because it was horribly unsafe.
llvm-svn: 49610
2008-04-13 09:51:06 +00:00
Chris Lattner 4d232bccca Fix some serious logic errors that broke the jit on darwin/x86-64.
llvm-svn: 49606
2008-04-13 07:04:56 +00:00
Duncan Sands a07136ee2d Merge LLVMBuilder and FoldingBuilder, calling
the result IRBuilder.  Patch by Dominic Hamon.

llvm-svn: 49604
2008-04-13 06:22:09 +00:00
Chris Lattner a0a58b63f7 Gabor points out that reserveOperandSpace takes # of values,
not # of operands as an input.

llvm-svn: 49599
2008-04-13 00:14:42 +00:00
Anton Korobeynikov b9f38f38fa Provide option for stack alignment override
llvm-svn: 49593
2008-04-12 22:12:22 +00:00
Arnold Schwaighofer 634fc9a33a This patch corrects the handling of byval arguments for tailcall
optimized x86-64 (and x86) calls so that they work (... at least for
my test cases).

Should fix the following problems:

Problem 1: When i introduced the optimized handling of arguments for
tail called functions (using a sequence of copyto/copyfrom virtual
registers instead of always lowering to top of the stack) i did not
handle byval arguments correctly e.g they did not work at all :).

Problem 2: On x86-64 after the arguments of the tail called function
are moved to their registers (which include ESI/RSI etc), tail call
optimization performs byval lowering which causes xSI,xDI, xCX
registers to be overwritten. This is handled in this patch by moving
the arguments to virtual registers first and after the byval lowering
the arguments are moved from those virtual registers back to
RSI/RDI/RCX.

llvm-svn: 49584
2008-04-12 18:11:06 +00:00
Duncan Sands 844d55a42a Factor some libcall code.
llvm-svn: 49583
2008-04-12 17:14:18 +00:00
Dan Gohman 544ab2c50b Drop ISD::MEMSET, ISD::MEMMOVE, and ISD::MEMCPY, which are not Legal
on any current target and aren't optimized in DAGCombiner. Instead
of using intermediate nodes, expand the operations, choosing between
simple loads/stores, target-specific code, and library calls,
immediately.

Previously, the code to emit optimized code for these operations
was only used at initial SelectionDAG construction time; now it is
used at all times. This fixes some cases where rep;movs was being
used for small copies where simple loads/stores would be better.

This also cleans up code that checks for alignments less than 4;
let the targets make that decision instead of doing it in
target-independent code. This allows x86 to use rep;movs in
low-alignment cases.

Also, this fixes a bug that resulted in the use of rep;stos for
memsets of 0 with non-constant memory size when the alignment was
at least 4. It's better to use the library in this case, which
can be significantly faster when the size is large.

This also preserves more SourceValue information when memory
intrinsics are lowered into simple loads/stores.

llvm-svn: 49572
2008-04-12 04:36:06 +00:00
Dan Gohman 8c7cf88f7e Fix a bug that prevented x86-64 from using rep.movsq for
8-byte-aligned data.

llvm-svn: 49571
2008-04-12 02:35:39 +00:00
Nate Begeman 7417348a7e 80 col fix
llvm-svn: 49569
2008-04-12 00:47:57 +00:00
Nate Begeman 4840515dff Restore code to disable crash catcher on older OS X systems
llvm-svn: 49568
2008-04-12 00:47:46 +00:00
Evan Cheng 213ea6b276 Add debugging code.
llvm-svn: 49566
2008-04-12 00:22:01 +00:00
Chris Lattner ad281e8e19 Reenable JIT symbol table.
llvm-svn: 49548
2008-04-11 18:11:56 +00:00
Evan Cheng 305d268ac3 Do not add empty live intervals to handled_. They should never be undone for backtracking.
llvm-svn: 49544
2008-04-11 17:55:47 +00:00
Evan Cheng 33281864c1 If a PHI node has a single implicit_def source, replace it with an implicit_def instead of a copy.
llvm-svn: 49543
2008-04-11 17:54:45 +00:00
Evan Cheng 499ffa9055 Use of implicit_def is not part of live interval. Create empty intervals for the uses when the live interval is being spilled.
llvm-svn: 49542
2008-04-11 17:53:36 +00:00
Devang Patel bde1bbed16 Change llvm tools install location.
llvm-svn: 49540
2008-04-11 17:45:39 +00:00
Chris Lattner 0b596c3f5a improvements for IntrusiveRefCntPtr, patch by Mikhail Glushenkov
llvm-svn: 49538
2008-04-11 16:42:06 +00:00
Duncan Sands 21285fc04c The Ada front-end from the LLVM 2.2 release
cannot be build with GNAT GPL 2006, only with
GNAT GPL 2005.

llvm-svn: 49529
2008-04-11 13:24:43 +00:00
Gabor Greif c422383e08 detabify
llvm-svn: 49524
2008-04-11 09:34:57 +00:00
Owen Anderson 90bde997b3 Add testcase for PR2213.
llvm-svn: 49517
2008-04-11 05:13:32 +00:00
Owen Anderson 1e73f29a7f Fix PR2213 by simultaneously making GVN more aggressive with the return values
of calls and less aggressive with non-readnone calls.

llvm-svn: 49516
2008-04-11 05:11:49 +00:00
Evan Cheng b53d560150 New test.
llvm-svn: 49514
2008-04-10 23:49:09 +00:00
Evan Cheng c6864b6652 Remove implicit_def instructions that become dead as result of coalescing.
llvm-svn: 49513
2008-04-10 23:48:35 +00:00
Evan Cheng 2cb98eb4bb Allow registers defined by implicit_def to be clobbered.
llvm-svn: 49512
2008-04-10 23:47:53 +00:00
Dan Gohman 9b5ffc8408 Fix a typo in a comment.
llvm-svn: 49504
2008-04-10 23:02:38 +00:00
Dan Gohman 7603a182cc Fix a typo in a comment.
llvm-svn: 49502
2008-04-10 22:27:06 +00:00
Owen Anderson 53336d8055 Fix for PR2190. Memdep's non-local caching was checking dirtied blocks in the
wrong order.

llvm-svn: 49499
2008-04-10 22:13:32 +00:00
Dan Gohman f4bc782495 Make several symbols static.
llvm-svn: 49496
2008-04-10 21:11:47 +00:00
Dan Gohman 99b7b3f03b Teach InstCombine's ComputeMaskedBits to handle pointer expressions
in addition to integer expressions. Rewrite GetOrEnforceKnownAlignment
as a ComputeMaskedBits problem, moving all of its special alignment
knowledge to ComputeMaskedBits as low-zero-bits knowledge.

Also, teach ComputeMaskedBits a few basic things about Mul and PHI
instructions.

This improves ComputeMaskedBits-based simplifications in a few cases,
but more noticeably it significantly improves instcombine's alignment
detection for loads, stores, and memory intrinsics.

llvm-svn: 49492
2008-04-10 18:43:06 +00:00
Evan Cheng 16ea87d6ee A copy instruction may use a register multiple times on some targets. Change them all.
llvm-svn: 49491
2008-04-10 18:38:47 +00:00
Evan Cheng 5e1971c894 Add comment.
llvm-svn: 49469
2008-04-10 08:03:14 +00:00
Chris Lattner aeb23a8a34 add a note, this is actually not too bad to implement.
llvm-svn: 49466
2008-04-10 05:54:50 +00:00
Chris Lattner c692188075 move the x86-32 part of PR2108 here.
llvm-svn: 49465
2008-04-10 05:37:47 +00:00
Chris Lattner ad75302497 Fix the x86-64 side of PR2108 by adding a v2f64 version of
MOVZQI2PQIrr.  This would be better handled as a dag combine 
(with the goal of eliminating the bitconvert) but I don't know
how to do that safely.  Thoughts welcome.

llvm-svn: 49463
2008-04-10 05:13:43 +00:00
Chris Lattner 57dd77462b produce an error on invalid input instead of asserting:
def : Pat<((v2f64 (vector_shuffle immAllZerosV_bc,
           ^

llvm-svn: 49462
2008-04-10 04:48:34 +00:00
Evan Cheng 9d339849ee Teach branch folding pass about implicit_def instructions. Unfortunately we can't just eliminate them since register scavenger expects every register use to be defined. However, we can delete them when there are no intra-block uses. Carefully removing some implicit def's which enable more blocks to be optimized away.
llvm-svn: 49461
2008-04-10 02:32:10 +00:00
Chris Lattner a29d2536aa Disable an xform we've had for a long time, pow(x,0.5) -> sqrt.
This is not safe for all inputs.

llvm-svn: 49458
2008-04-10 02:07:51 +00:00
Evan Cheng 2025a490d0 Move memcpy / memset optimization pass after GVN.
llvm-svn: 49457
2008-04-10 01:33:05 +00:00
Evan Cheng c8eeb752a3 - More aggressively coalescing away copies whose source is defined by an implicit_def.
- Added insert_subreg coalescing support.

llvm-svn: 49448
2008-04-09 20:57:25 +00:00
Dan Gohman 33b3300178 Make isVectorClearMaskLegal's operand list const.
llvm-svn: 49446
2008-04-09 20:09:42 +00:00
Dan Gohman 44b3005e86 Fix some minor errors in comments.
llvm-svn: 49445
2008-04-09 20:08:06 +00:00
Dan Gohman 3049516bd5 Add const qualifiers.
llvm-svn: 49443
2008-04-09 18:31:41 +00:00
Dan Gohman bb0022b810 Update comments to use 2.0 syntax type names.
llvm-svn: 49442
2008-04-09 18:24:25 +00:00
Dan Gohman 3d074a3125 Add XMM1 as a second return value register for f32 and f64 on x86-64. This
is needed for the x86-64-ABI handling of structs that contain floating-point
members that are returned by value.

llvm-svn: 49441
2008-04-09 17:54:37 +00:00
Dan Gohman cbf87313a2 Add DX as a second return value register for i16 on x86.
llvm-svn: 49440
2008-04-09 17:53:38 +00:00
Chris Lattner 802134fc02 Generalize getUnaryFloatFunction to handle any FP unary function, automatically
figuring out the suffix to use.  implement pow(2,x) -> exp2(x).

llvm-svn: 49437
2008-04-09 17:48:11 +00:00
Chris Lattner 091afc7714 remove capital letter from test name.
llvm-svn: 49436
2008-04-09 17:46:36 +00:00
Chris Lattner cca74e5ab9 use the new ConstantFP::get method to make this work with
long double and simplify the code.

llvm-svn: 49435
2008-04-09 17:17:35 +00:00
Chris Lattner 0704e3acff ConstantFP::get should be static.
llvm-svn: 49434
2008-04-09 17:16:28 +00:00
Nate Begeman a6063118c6 Fix a bug where an incorrect bit mask would be generated if a target's last asm
string began at a power of 2 in the string index.  For example, if "ret" started
at position 16, the ret instruction would be assigned code 16, but the mask would be AsmChars[] + Code & 15, not Code & 31.

llvm-svn: 49433
2008-04-09 16:24:11 +00:00
Devang Patel a7dfbc0366 Be conservative if getresult operand is neither call nor invoke.
llvm-svn: 49430
2008-04-09 15:58:24 +00:00
Owen Anderson ef9a6fd5c2 Factor a bunch of functionality related to memcpy and memset transforms out of
GVN and into its own pass.

llvm-svn: 49419
2008-04-09 08:23:16 +00:00
Owen Anderson 8ee792d1b6 Remove accidentally duplicated code.
llvm-svn: 49418
2008-04-09 07:55:01 +00:00
Evan Cheng 0515472470 Unbreak teh build.
llvm-svn: 49417
2008-04-09 07:06:01 +00:00
Chris Lattner 98bd939af8 add a simplified accessor for creating an fp constant of a
particular value but variable type.

llvm-svn: 49416
2008-04-09 06:38:30 +00:00
Evan Cheng aa3b55f842 Missed a hasInterval check.
llvm-svn: 49415
2008-04-09 01:30:15 +00:00
Chris Lattner b5b3e3136b add a version of ConstantFP::get that doesn't take a redundant Type* value,
start migrating code over to use it.

llvm-svn: 49413
2008-04-09 00:45:01 +00:00
Chris Lattner b859fb49ed many cleanups to the pow optimizer. Allow it to handle powf,
add support for  pow(x, 2.0) -> x*x.

llvm-svn: 49411
2008-04-09 00:07:45 +00:00
Chris Lattner 8ca9450885 make ConstantFP::isExactlyValue work for long double as well.
llvm-svn: 49410
2008-04-09 00:03:58 +00:00
Devang Patel 0a14b5b649 Add CreateGetResult()
llvm-svn: 49398
2008-04-08 20:41:22 +00:00
Duncan Sands 470ab1a04d Check that bodies and calls but not declarations
are marked nounwind when compiling without
-fexceptions.

llvm-svn: 49393
2008-04-08 19:31:52 +00:00
Dale Johannesen 5169fa17b5 Rename -disable-required-unwind-tables to -unwind-tables-optional.
llvm-svn: 49391
2008-04-08 18:10:08 +00:00
Dale Johannesen 4c0c018bc5 Rename -disable-required-unwind-tables to unwind-tables-optional.
llvm-svn: 49389
2008-04-08 18:07:49 +00:00
Gabor Greif 00fcdeddd3 merge r48768 from branches/ggreif/parallelized-test
llvm-svn: 49382
2008-04-08 15:22:41 +00:00
Devang Patel 3d840ded0d Add multiple value return instruction constructor.
llvm-svn: 49374
2008-04-08 07:30:13 +00:00
Duncan Sands 57d3a36386 Convenience method for setting the nounwind
attribute for a function.

llvm-svn: 49373
2008-04-08 07:23:58 +00:00
Chris Lattner 166c458df4 silence warning when assertions are disabled.
llvm-svn: 49371
2008-04-08 05:49:09 +00:00
Devang Patel 8cd2a3ae2a Fix insert point handling for multiple return values.
llvm-svn: 49367
2008-04-08 02:24:08 +00:00
Dale Johannesen fe767621ca Handle the situation in 2008-01-25-EmptyFunction.ll
correctly when unwind info is being generated.

llvm-svn: 49366
2008-04-08 00:37:56 +00:00
Dale Johannesen 399c0e63af Missed one.
llvm-svn: 49365
2008-04-08 00:14:59 +00:00
Dale Johannesen da298f9107 Add -disable-required-unwind-tables to tests
that need it (usually, grepping for some string
found in unwind info)

llvm-svn: 49364
2008-04-08 00:14:17 +00:00
Dale Johannesen 344aec2952 Implement new llc flag -disable-required-unwind-tables.
Corresponds to -fno-unwind-tables (usually default in gcc).

llvm-svn: 49361
2008-04-08 00:10:24 +00:00
Ted Kremenek a518bb79b1 Make getDirnameSep a static method (not part of Path's interface).
llvm-svn: 49354
2008-04-07 22:01:32 +00:00
Ted Kremenek c042bf1db5 Added method Path::getDirname().
llvm-svn: 49352
2008-04-07 21:53:57 +00:00
Sam Bishop 3a13067557 Added support for Create() calls that take an argument besides the
deserializer.

llvm-svn: 49350
2008-04-07 21:36:46 +00:00
Dan Gohman 3bc3ddd638 Rename MemOperand to MachineMemOperand. This was suggested by
review feedback from Chris quite a while ago. No functionality
change.

llvm-svn: 49348
2008-04-07 19:35:22 +00:00
Tanya Lattner 18948355e1 Remove llvm-upgrade.
llvm-svn: 49347
2008-04-07 18:32:47 +00:00
Tanya Lattner c7972310bb Added note to getting started guide to use llvm-gcc4.2.
Removed llvm-upgrade from documentations.

llvm-svn: 49346
2008-04-07 18:32:25 +00:00
Owen Anderson ed92b41a39 Add operator= implementations to SparseBitVector, allowing it to be used in GVN. This results
in both time and memory savings for GVN.  For example, one testcase went from 10.5s to 6s with
this patch.

llvm-svn: 49345
2008-04-07 17:38:23 +00:00
Duncan Sands d6481955db Testcase for pr2169.
llvm-svn: 49344
2008-04-07 17:03:16 +00:00
Evan Cheng 7b93268305 Fix test.
llvm-svn: 49343
2008-04-07 17:02:18 +00:00
Daniel Berlin b646062ad5 Fix PR 2169.
llvm-svn: 49339
2008-04-07 14:20:50 +00:00
Duncan Sands 813384951e Use Intrinsic::getDeclaration in more places.
llvm-svn: 49338
2008-04-07 13:45:04 +00:00
Duncan Sands 1416ebf1fe The "stacksave is not nounwind problem" no longer
needs to be fixed here - a previous commit made sure
that intrinsics always get the right attributes.
So remove no-longer needed code, and while there use
Intrinsic::getDeclaration rather than getOrInsertFunction. 

llvm-svn: 49337
2008-04-07 13:43:58 +00:00
Duncan Sands fbc6adcc59 Use Intrinsic::getDeclaration to get hold of
intrinsics.  Fix up the argument type (should
be i8*, was an array*).

llvm-svn: 49336
2008-04-07 13:41:19 +00:00
Duncan Sands a8ff6ca2e3 Make sure that intrinsics automagically get the
right parameter attributes no matter how they
are obtained.

llvm-svn: 49335
2008-04-07 13:39:11 +00:00
Roman Levenstein 51f532f92d Re-commit of the r48822, where the infinite looping problem discovered
by Dan Gohman is fixed.

llvm-svn: 49330
2008-04-07 10:06:32 +00:00
Owen Anderson 0c1e634cbb Make GVN more memory efficient, particularly on code that contains a large number of
allocations, which GVN can't optimize anyways.

llvm-svn: 49329
2008-04-07 09:59:07 +00:00
Bill Wendling 856d8f5b58 Remove tabs. Patch by Mike Stump!
llvm-svn: 49317
2008-04-07 05:47:52 +00:00
Dale Johannesen 87e484f08b Mark calls to llvm.stacksave, llvm.stackrestore as
nounwind.  When such calls are inlined into something
else that is invoked, they were getting changed to invokes,
which is badness.

llvm-svn: 49299
2008-04-07 00:08:48 +00:00
Gabor Greif 92f493dc72 regenerate
llvm-svn: 49293
2008-04-06 23:07:54 +00:00
Chris Lattner 982e8502c9 fix warnings with assertions disabled.
llvm-svn: 49285
2008-04-06 21:50:58 +00:00
Chris Lattner 4db1f62d84 Silence warning when no assertions.
llvm-svn: 49284
2008-04-06 21:46:45 +00:00
Chris Lattner a39cfc5c5b silence a warning when assertions are disabled.
llvm-svn: 49283
2008-04-06 21:44:08 +00:00
Gabor Greif dd8b7a0a47 fix a warning
llvm-svn: 49282
2008-04-06 21:42:13 +00:00
Chris Lattner 5bd2f736e6 fix this testcase to pass and remove a duplicate instance of itself.
llvm-svn: 49281
2008-04-06 21:39:17 +00:00
Torok Edwin 613d7afe64 Prefer to expand mask for xor to -1, so we have a chance to turn it into a not.
If it cannot be expanded, it will keep the old behaviour and try to shrink the constant.
Part of enhancement for PR2191.

llvm-svn: 49280
2008-04-06 21:23:02 +00:00
Gabor Greif e9ecc68d8f API changes for class Use size reduction, wave 1.
Specifically, introduction of XXX::Create methods
for Users that have a potentially variable number of
Uses.

llvm-svn: 49277
2008-04-06 20:25:17 +00:00
Chris Lattner 5ed17b67d2 Fix generation of multi-stage instruction itineraries. Patch by
giuma.cordes@gmail.com

llvm-svn: 49276
2008-04-06 17:38:14 +00:00
Torok Edwin 538160b7ff -fPIC is required on x86-64 when building shared objects.
llvm-svn: 49274
2008-04-06 12:42:29 +00:00
Chris Lattner 8519c0ead8 disable this for now.
llvm-svn: 49248
2008-04-05 04:12:01 +00:00
Evan Cheng c975d7b30d Forgot this.
llvm-svn: 49247
2008-04-05 02:17:58 +00:00
Evan Cheng b5fdc923d3 1. IMPLICIT_DEF can *re-define* any register.
2. Coalescer can now create an interesting situation where a register def can
   reaches itself without being killed.

llvm-svn: 49246
2008-04-05 01:27:09 +00:00
Evan Cheng f77b5ef3d0 Favors pshufd over shufps when shuffling elements from one vector. pshufd is faster than shufps.
llvm-svn: 49244
2008-04-05 00:30:36 +00:00
Dale Johannesen 0ce4a7cc44 Make sure both PendingLoads and PendingExports are flushed
before an invoke.  Failure to do this causes references in
the landing pad to variables that were not set.  Fixes
g++.dg/eh/delayslot1.C
g++.dg/eh/fp-regs.C
g++.old-deja/g++.brendan/eh1.C

llvm-svn: 49243
2008-04-04 23:48:31 +00:00
Torok Edwin b20e659770 strdup needs <cstring>. This fixes a build error with g++-4.3.
llvm-svn: 49218
2008-04-04 16:08:00 +00:00
Duncan Sands 4cbca05d4e If a value is cast to its own type, then the cast
is not needed.

llvm-svn: 49210
2008-04-04 08:28:13 +00:00
Chris Lattner 318d3ef88e Provide an initial cut at exposing JIT compiled symbols to performance
tools.  This is currently only enabled on the mac, but could easily be
supported by other hosts that are interested.

llvm-svn: 49207
2008-04-04 05:51:42 +00:00
Chris Lattner ee1817300a Make ExecutionEngine::updateGlobalMapping return the old mapping.
llvm-svn: 49206
2008-04-04 04:47:41 +00:00
Evan Cheng 14bee50e06 Undo PHI elimination copy placement patch. This causes coalescing (performace) issues.
llvm-svn: 49198
2008-04-04 01:20:05 +00:00
Evan Cheng 823017fdd1 This is done.
llvm-svn: 49197
2008-04-04 01:19:03 +00:00
Devang Patel 124cce86fc Reenable running StripSymbols when EH is on.
Dale fixed EH.

llvm-svn: 49192
2008-04-03 21:30:06 +00:00
Evan Cheng 4b9a2c0b59 New test case.
llvm-svn: 49190
2008-04-03 21:25:03 +00:00
Chuck Rose III 30d27e4e03 Removed a deleted file from the VStudio System project. Also added custom build commands to engage 64 bit assembler for compilation callback on 64 bit configurations only.
llvm-svn: 49188
2008-04-03 20:28:40 +00:00
Andrew Lenharth bfb7246fb6 if some functions don't have debug info, we were outputing the same label at the start of each of those functions. This makes assemblers unhappy
llvm-svn: 49176
2008-04-03 17:37:43 +00:00
Ted Kremenek 73ac2048f9 Add member template version of SerializeTrait<T>::Create that also accepts
an optional argument for us by T's Create method.

llvm-svn: 49169
2008-04-03 16:44:37 +00:00
Evan Cheng 58936a48ee - Turn copies of implicit_def into implicit_def instructions.
- Be smarter about coalescing copies from implicit_def.

llvm-svn: 49168
2008-04-03 16:41:54 +00:00
Evan Cheng 6d07b625aa Special handling of zero-sized live intervals.
llvm-svn: 49167
2008-04-03 16:40:27 +00:00
Evan Cheng 20aed56504 - Treat a live range defined by an implicit_def as a zero-sized one.
- Eliminate an implicit_def when it's being spilled.

llvm-svn: 49166
2008-04-03 16:39:43 +00:00
Evan Cheng aacf4f15b3 - PHI elimination also eliminates implicit_def that fits into a PHI node rather than copying it.
- Be (slightly) smarter about where to place the copies.

llvm-svn: 49165
2008-04-03 16:38:20 +00:00
Evan Cheng 916802a78e Start of a series of patches related to implicit_def.
There is no point in creating a long live range defined by an implicit_def. Scheduler now duplicates implicit_def instruction for each of its uses. Therefore, if an implicit_def node has multiple uses, it will become a number of very short live ranges, rather than a long one. This will make coalescer's job easier.

llvm-svn: 49164
2008-04-03 16:36:07 +00:00
Ted Kremenek 1d0436cdb0 Re-implemented Path::createDirectoryOnDisk (for Unix).
This method allows one to create a directory, and optionally create all parent
directories that do not exist.

The original implementation would require that *all* directories along a path
are writable by the user, including directories that already exist. For example,
suppose we wanted to create the directory "/tmp/foo/bar", and the directory
"/tmp" already exists, but not "/tmp/foo". Since "/tmp" is writable by all
users, the original implementation would work, and create "/tmp/foo", followed
by "/tmp/bar".

A problem occurred, however if one wanted to created the directory
"/Users/myuser/bar" (or equivalently "/home/myuser/bar"), and "/Users/myuser"
already existed and is writable by the current user. The directory
"/User/myuser" is writable by the user, but "/User" is not. The original
implementation of createDirectoryOnDisk would return with failure since "/User"
is not writable, even though "/User/mysuser" is writable.

The new implementation works by recursively creating parents as needed, and thus
doesn't need to check the permissions on every directory in a path.

llvm-svn: 49162
2008-04-03 16:11:31 +00:00
Evan Cheng 6c66bd368e Re-enable SSE4.
llvm-svn: 49158
2008-04-03 08:53:29 +00:00
Evan Cheng 6db4b4cc65 Fix x86-64 encoding bug. REX prefix must always follow 0x0F prefix. For example, extractps in 64bit mode: 66 REX 0F 3A 17, not 66 0F 3A REX 17.
llvm-svn: 49157
2008-04-03 08:53:17 +00:00
Evan Cheng d9129d1de3 Cosmetic
llvm-svn: 49156
2008-04-03 07:45:18 +00:00
Evan Cheng 3063c5546e Temporarily disabling SSE4 until we fix the encoding issues.
llvm-svn: 49129
2008-04-03 04:49:54 +00:00
Evan Cheng 025cea1126 Backing out 48222 temporarily.
llvm-svn: 49124
2008-04-03 03:13:16 +00:00
Dan Gohman fc4ad7de66 Move instruction flag inference out of InstrInfoEmitter and into
CodeGenDAGPatterns, where it can be used in other tablegen backends.
This allows the inference to be done for DAGISelEmitter so that it
gets accurate mayLoad/mayStore/isSimpleLoad flags. 

This brings MemOperand functionality back to where it was before
48329. However, it doesn't solve the problem of anonymous patterns
which expand to code that does loads or stores.

llvm-svn: 49123
2008-04-03 00:02:49 +00:00
Dan Gohman bd72cea737 Suppress the 128-bit integer typedef on 32-bit targets, because
it causes compile errors.

llvm-svn: 49122
2008-04-02 23:52:49 +00:00
Dale Johannesen 5316aebeb6 Testcase for EH with functions whose names are stripped.
llvm-svn: 49111
2008-04-02 20:16:41 +00:00
Dale Johannesen 491557712a Make EH work with unnamed functions. Reenable running
StripSymbols when EH is on.

llvm-svn: 49110
2008-04-02 20:10:52 +00:00
Dan Gohman 39d8b26322 Partial CBackend support for 128-bit integers. This is needed
now that llvm-gcc is lowering appropriately-sized struct returns
to i128 on x86-64.

llvm-svn: 49109
2008-04-02 19:40:14 +00:00
David Greene 586740f401 Iterators folloring a SmallVector erased element are invalidated so
don't access cached iterators from after the erased element.

Re-apply 49056 with SmallVector support.

llvm-svn: 49106
2008-04-02 18:24:46 +00:00
Evan Cheng d8616064d8 Now that I am told MachineRegisterInfo also tracks physical register uses / defs, I can do away with the horribleness I introduced a while back. It's impossible to detect if there is any use of a physical register below an instruction (and before any def of the register) with some cheap book keeping.
llvm-svn: 49105
2008-04-02 18:04:08 +00:00
Evan Cheng be3d44c3cb Remove #include<map> from LiveVariables.h. Not referenced.
llvm-svn: 49099
2008-04-02 17:23:50 +00:00
Dale Johannesen 8780ecbbac Cosmetic changes per EH patch review feedback.
llvm-svn: 49096
2008-04-02 17:04:45 +00:00
Torok Edwin 21b8bed571 Add new file Support/DataFlow.h.
It allows Use-Def and Def-Use relations to be treated as graphs.

llvm-svn: 49088
2008-04-02 14:57:52 +00:00
Anton Korobeynikov 20c9e4cbee Add new CC lowering rule: provide a list of registers, which can be 'shadowed',
when some another register is used for argument passing.
Currently is used on Win64.

llvm-svn: 49079
2008-04-02 05:23:57 +00:00
Owen Anderson 2412158111 In some situations, we need to check for local interferences between the PHI
node and its inputs.

llvm-svn: 49070
2008-04-02 03:00:13 +00:00
Owen Anderson edfc2eb558 Correctly mark a valno that was previous defined by a PHI node as having an
unknown defining inst after PHI elimination.

llvm-svn: 49069
2008-04-02 02:12:45 +00:00
Chris Lattner 1f17cce2eb more edits from Jon Sargeant
llvm-svn: 49065
2008-04-02 00:38:26 +00:00
Dale Johannesen fd967cf3fa Recommitting EH patch; this should answer most of the
review feedback.
-enable-eh is still accepted but doesn't do anything.
EH intrinsics use Dwarf EH if the target supports that,
and are handled by LowerInvoke otherwise.
The separation of the EH table and frame move data is,
I think, logically figured out, but either one still
causes full EH info to be generated (not sure how to
split the metadata correctly).
MachineModuleInfo::needsFrameInfo is no longer used and
is removed.

llvm-svn: 49064
2008-04-02 00:25:04 +00:00
Evan Cheng ac38d444e2 1. Drop default inline threshold back down to 200.
2. Do not use # of basic blocks as part of the cost computation since it doesn't really figure into function size.
3. More aggressively inline function with vector code.

llvm-svn: 49061
2008-04-01 23:59:29 +00:00
Tanya Lattner 052838c55d Reverting 49056 due to the build being broken.
llvm-svn: 49060
2008-04-01 23:41:44 +00:00
Evan Cheng b86595fb0a ReMat of load from stub in pic mode extends the life of pic base. Currently spiller doesn't do a good job of estimating the impact. Disable for now.
llvm-svn: 49059
2008-04-01 23:26:12 +00:00
David Greene 7f7edc3824 Iterators folloring a SmallVector erased element are invalidated so
don't access cached iterators from after the erased element.

llvm-svn: 49056
2008-04-01 22:14:23 +00:00
Bill Wendling fc9f25dab0 Fix compilation errors on MSVC. Patch by Argiris Kirtzidis!
llvm-svn: 49055
2008-04-01 22:09:20 +00:00
Evan Cheng 19a6dd9f2a Remove unnecessary and non-deterministic checking code. Re-enable remat of load from gv stub.
llvm-svn: 49054
2008-04-01 21:38:20 +00:00
Evan Cheng 985a0b51d7 Re-materialization is for uses only.
llvm-svn: 49053
2008-04-01 21:37:32 +00:00
Dan Gohman cb9f8f6e4e Don't use __bzero for memset if the second argument isn't zero.
llvm-svn: 49050
2008-04-01 20:56:18 +00:00
Dan Gohman 980d7200c1 Speculatively micro-optimize memory-zeroing calls on Darwin 10.
llvm-svn: 49048
2008-04-01 20:38:36 +00:00
Dale Johannesen 5e4e051c2a Revert 49006 for the moment.
llvm-svn: 49046
2008-04-01 20:00:57 +00:00
Chris Lattner 81f929763c add a dropped hunk from Jon Sargeant's patch.
llvm-svn: 49045
2008-04-01 18:47:32 +00:00
Chris Lattner 1429e6fb29 make langref more precise, wave 1, from Jon Sargeant
llvm-svn: 49044
2008-04-01 18:45:27 +00:00
Owen Anderson 49dd9f16a9 Don't dereference MBB->end().
llvm-svn: 49043
2008-04-01 18:05:08 +00:00
Chris Lattner 6f2ffdb73f Change the MemoryBuffer::getFile* methods to take just a pointer to the
start of a filename, not a filename+length.  All clients can produce a
null terminated name, and the system api's require null terminated 
strings anyway.

llvm-svn: 49041
2008-04-01 18:04:03 +00:00
Chris Lattner 5db870c904 minor typo
llvm-svn: 49040
2008-04-01 18:02:36 +00:00
Evan Cheng 306e3dcff4 Disabling remat of load from gv stub (temporarily) again to fix llvmgcc bootstrap miscompare.
llvm-svn: 49037
2008-04-01 07:33:13 +00:00
Chris Lattner ba98fca5e5 add some #includes.
llvm-svn: 49036
2008-04-01 06:25:23 +00:00
Chris Lattner 18356d8857 MappedFile is dead, remove it.
llvm-svn: 49035
2008-04-01 06:20:44 +00:00
Chris Lattner 4c5e15f7da Implement Path::MapInFilePages/UnMapFilePages on unix, which
provides fast MappedFile::getFile for large files.

llvm-svn: 49034
2008-04-01 06:16:24 +00:00
Chris Lattner a542518315 Reimplement MemoryBuffer::getFile with three enhancements:
1) stop using MappedFile.
2) if profitable use the sys::path::MapInFilePages api to
   read the file.
3) otherwise fallback to read.

When sys::path::MapInFilePages is implemented, this provides
several benefits:

#1: this avoids fragmenting memory for small files.
#2: this avoids extraneous stat calls when the file size is known.
#3: this only keeps the file descriptor open while reading the 
    file, not for the duration of the lifetime of the memory 
    buffer.  This fixes a serious clang FD 'leak' problem.

I believe that this will work on a win32 machine, but I don't have
one to test on.  I'd appreciate it if someone could check.

llvm-svn: 49031
2008-04-01 06:05:21 +00:00
Chris Lattner 3089e1d82e Stub out some sys::Path::MapInFilePages/UnMapFilePages methods.
llvm-svn: 49030
2008-04-01 06:00:12 +00:00
Chris Lattner d4310a27aa change the archive stuff to use MemoryBuffer instead of mappedfile.
MemoryBuffer is higher level and more closely matches the model
needed.

llvm-svn: 49029
2008-04-01 04:26:46 +00:00
Chris Lattner 014dea94b2 prune unneeded #includes
llvm-svn: 49028
2008-04-01 04:00:45 +00:00
Chris Lattner 4ac7bb0294 rewrite SourceFile to be in terms of MemoryBuffer, not MappedFile.
llvm-svn: 49027
2008-04-01 03:59:34 +00:00
Chris Lattner 64959dcf03 Make MappedFile::map return a const correct pointer, don't leak address space on Unix platforms.
llvm-svn: 49026
2008-04-01 03:49:38 +00:00
Chris Lattner bcfa564759 Remove the MappedFile::charBase member, rename base -> getBase() and
make getBase() return a const-correct pointer.

llvm-svn: 49025
2008-04-01 03:40:53 +00:00
Chris Lattner 314a1414d0 Change DiffFilesWithTolerance to be written in terms of MemoryBuffer,
not an mmapped file.  This more closely matches its requirements and
provides an implicitly null terminated buffer, something this
routine had to emulate itself before.

llvm-svn: 49024
2008-04-01 03:39:49 +00:00
Chris Lattner 5a7d4e4f6d add an accessor.
llvm-svn: 49023
2008-04-01 03:20:31 +00:00
Chris Lattner 62385ba3a0 Remove MappedFile support for mapping files for write and exec
and shared.  This complicates the design, is not used, and probably
doesn't even work.

llvm-svn: 49022
2008-04-01 03:10:22 +00:00
Chris Lattner f5b0b76d28 remove extraneous #include
llvm-svn: 49021
2008-04-01 03:01:15 +00:00
Chris Lattner 3d7127b3e3 add missing #includes
llvm-svn: 49020
2008-04-01 02:58:05 +00:00
Evan Cheng 0bd72c5ccd More soft fp fixes.
llvm-svn: 49016
2008-04-01 02:18:22 +00:00
Evan Cheng 4cabe4b452 Pasto.
llvm-svn: 49014
2008-04-01 02:00:09 +00:00
Evan Cheng 611abc03ed Add comment.
llvm-svn: 49013
2008-04-01 01:51:26 +00:00
Evan Cheng 86e476b7cb Unbreak ARM / Thumb soft FP support.
llvm-svn: 49012
2008-04-01 01:50:16 +00:00
Dale Johannesen efa81a6979 Accept 'y' constraint (MMX) in inline asm.
llvm-svn: 49011
2008-04-01 00:57:48 +00:00
Chris Lattner ac17d39469 update comment.
llvm-svn: 49010
2008-04-01 00:54:39 +00:00
Chris Lattner efecfbc113 cleanup the MappedFile API and comments. This removes and updates
tons of out of date comments (really nothing throws here!) and fixes
some other fairly glaring issues: "size" used to return the size of 
the file *and* change it, depending on how you called it.

llvm-svn: 49009
2008-04-01 00:53:25 +00:00
Chris Lattner 1fa4dca692 remove DEFINING_FILE_FOR for MappedFile.h
llvm-svn: 49008
2008-04-01 00:35:55 +00:00
Dale Johannesen 7d02cf3c9c Emit exception handling info for functions which are
not marked nounwind, or for all functions when -enable-eh
is set, provided the target supports Dwarf EH.

llvm-gcc generates nounwind in the right places; other FEs
will need to do so also.  Given such a FE, -enable-eh should
no longer be needed.

llvm-svn: 49006
2008-03-31 23:40:23 +00:00
Dale Johannesen 0de94a1712 Mark functions in some tests as 'nounwind'. Generating
EH info for these functions causes the tests to fail for
random reasons (e.g. looking for 'or' or counting lines
with asm-printer; labels count as lines.)

llvm-svn: 49003
2008-03-31 23:20:09 +00:00
Evan Cheng e4f77c69ac It's not safe to fold a load from GV stub or constantpool into a two-address use.
llvm-svn: 49002
2008-03-31 23:19:51 +00:00
Nate Begeman f8be3836e3 Actually disable crash reporting on Mac OS X, returning bugpoint to speedy
crash miscompilations.

llvm-svn: 49000
2008-03-31 22:19:25 +00:00
Dan Gohman 3717cdaf22 Set blockBegin to point to the beginning of the block,
not the end.

llvm-svn: 48999
2008-03-31 22:08:00 +00:00
Evan Cheng ed6e34fe41 Move reMaterialize() from TargetRegisterInfo to TargetInstrInfo.
llvm-svn: 48995
2008-03-31 20:40:39 +00:00