7e4a55bc58
Be more careful with insert_subreg and extract_subreg where either source or destination operand has already been coalesced with another register that's defined by a insert_subreg or extract_subreg.
...
llvm-svn: 49843
2008-04-17 07:58:04 +00:00
f9ae76d89c
Make GVN able to remove unnecessary calls to read-only functions again.
...
llvm-svn: 49842
2008-04-17 05:36:50 +00:00
288ef83b8a
Use correct name for method in comment.
...
llvm-svn: 49841
2008-04-17 05:20:39 +00:00
9752a8f3b4
Correct the SrcValue information in the Expand code for va_copy.
...
llvm-svn: 49839
2008-04-17 02:09:26 +00:00
376acf4aaa
Remove unused variable
...
llvm-svn: 49838
2008-04-17 01:30:44 +00:00
c8c3a899c0
Fix a sub-register indice propagation bug.
...
llvm-svn: 49832
2008-04-17 00:06:42 +00:00
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
147cb764b5
Don't forget about sub-register indices when rematting instructions.
...
llvm-svn: 49830
2008-04-16 23:44:44 +00:00
c1279f5e4b
Unbreak build on x86-64.
...
llvm-svn: 49822
2008-04-16 22:24:33 +00:00
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
59aa126e48
After reading memory that's already freed.
...
llvm-svn: 49810
2008-04-16 20:24:25 +00:00
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
a15cee1036
Initialize X863DNowLevel.
...
llvm-svn: 49808
2008-04-16 19:03:02 +00:00
23f12757ed
Fix PR2226. Avoid using uninitialized variables.
...
llvm-svn: 49807
2008-04-16 18:48:43 +00:00
8dc8a8d8af
Empty basic block should have an empty range.
...
llvm-svn: 49800
2008-04-16 18:01:08 +00:00
4675c4e7e7
Don't read off end of the input array.
...
llvm-svn: 49799
2008-04-16 17:31:41 +00:00
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
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
6c17773ccc
Code clean up.
...
llvm-svn: 49783
2008-04-16 09:41:59 +00:00
57236b58f7
Major repairs to the post-dominators implementation. Patch from Florian Brandner!
...
llvm-svn: 49768
2008-04-16 04:21:16 +00:00
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
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
e29e9774a4
Avoid read after free.
...
llvm-svn: 49760
2008-04-16 01:22:28 +00:00
3dd8ba6235
Remove X86_64SRet; it isn't used anymore.
...
llvm-svn: 49759
2008-04-16 00:24:30 +00:00
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
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
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
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
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
7000c8f1aa
Change Divided flag to Split, as suggested by Evan
...
llvm-svn: 49715
2008-04-15 08:08:50 +00:00
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
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
4fff979a43
Remove unnecessary <sstream> includes.
...
llvm-svn: 49681
2008-04-14 20:40:47 +00:00
5b61a288a7
Avoid creating MERGE_VALUES nodes for single values.
...
llvm-svn: 49676
2008-04-14 18:43:25 +00:00
2cd8e38ab9
Teach AliasSetTracker about VAArgInst.
...
llvm-svn: 49674
2008-04-14 18:34:50 +00:00
e36714c0b4
Minor whitespace and comment cleanups.
...
llvm-svn: 49671
2008-04-14 18:26:16 +00:00
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
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
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
7629b71dd4
Revert r49614. As Dan pointed out, some of these aren't correct.
...
llvm-svn: 49657
2008-04-14 17:38:21 +00:00
db0ea1ff4e
Fix /test/CodeGen/PowerPC/big-endian-actual-args.ll for linux/ppc32
...
llvm-svn: 49652
2008-04-14 17:17:14 +00:00
19bce7f18c
VAArg may trap.
...
llvm-svn: 49646
2008-04-14 15:07:08 +00:00
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
cc9709cff4
add a new CallGraphNode::removeCallEdgeFor method, tidy some comments.
...
llvm-svn: 49617
2008-04-13 19:41:25 +00:00
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
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
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
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
a07136ee2d
Merge LLVMBuilder and FoldingBuilder, calling
...
the result IRBuilder. Patch by Dominic Hamon.
llvm-svn: 49604
2008-04-13 06:22:09 +00:00
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
b9f38f38fa
Provide option for stack alignment override
...
llvm-svn: 49593
2008-04-12 22:12:22 +00:00
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
844d55a42a
Factor some libcall code.
...
llvm-svn: 49583
2008-04-12 17:14:18 +00:00
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
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
7417348a7e
80 col fix
...
llvm-svn: 49569
2008-04-12 00:47:57 +00:00
4840515dff
Restore code to disable crash catcher on older OS X systems
...
llvm-svn: 49568
2008-04-12 00:47:46 +00:00
213ea6b276
Add debugging code.
...
llvm-svn: 49566
2008-04-12 00:22:01 +00:00
ad281e8e19
Reenable JIT symbol table.
...
llvm-svn: 49548
2008-04-11 18:11:56 +00:00
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
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
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
c422383e08
detabify
...
llvm-svn: 49524
2008-04-11 09:34:57 +00:00
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
c6864b6652
Remove implicit_def instructions that become dead as result of coalescing.
...
llvm-svn: 49513
2008-04-10 23:48:35 +00:00
2cb98eb4bb
Allow registers defined by implicit_def to be clobbered.
...
llvm-svn: 49512
2008-04-10 23:47:53 +00:00
9b5ffc8408
Fix a typo in a comment.
...
llvm-svn: 49504
2008-04-10 23:02:38 +00:00
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
f4bc782495
Make several symbols static.
...
llvm-svn: 49496
2008-04-10 21:11:47 +00:00
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
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
5e1971c894
Add comment.
...
llvm-svn: 49469
2008-04-10 08:03:14 +00:00
aeb23a8a34
add a note, this is actually not too bad to implement.
...
llvm-svn: 49466
2008-04-10 05:54:50 +00:00
c692188075
move the x86-32 part of PR2108 here.
...
llvm-svn: 49465
2008-04-10 05:37:47 +00:00
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
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
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
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
33b3300178
Make isVectorClearMaskLegal's operand list const.
...
llvm-svn: 49446
2008-04-09 20:09:42 +00:00
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
cbf87313a2
Add DX as a second return value register for i16 on x86.
...
llvm-svn: 49440
2008-04-09 17:53:38 +00:00
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
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
a7dfbc0366
Be conservative if getresult operand is neither call nor invoke.
...
llvm-svn: 49430
2008-04-09 15:58:24 +00:00
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
8ee792d1b6
Remove accidentally duplicated code.
...
llvm-svn: 49418
2008-04-09 07:55:01 +00:00
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
aa3b55f842
Missed a hasInterval check.
...
llvm-svn: 49415
2008-04-09 01:30:15 +00:00
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
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
4c0c018bc5
Rename -disable-required-unwind-tables to unwind-tables-optional.
...
llvm-svn: 49389
2008-04-08 18:07:49 +00:00
57d3a36386
Convenience method for setting the nounwind
...
attribute for a function.
llvm-svn: 49373
2008-04-08 07:23:58 +00:00
8cd2a3ae2a
Fix insert point handling for multiple return values.
...
llvm-svn: 49367
2008-04-08 02:24:08 +00:00
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
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
a518bb79b1
Make getDirnameSep a static method (not part of Path's interface).
...
llvm-svn: 49354
2008-04-07 22:01:32 +00:00
c042bf1db5
Added method Path::getDirname().
...
llvm-svn: 49352
2008-04-07 21:53:57 +00:00
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
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
b646062ad5
Fix PR 2169.
...
llvm-svn: 49339
2008-04-07 14:20:50 +00:00
Evan Cheng