Benjamin Kramer
07df1b4d1a
Remove obviously invalid early exit that prevented analyzing ConstantAggregateZeros.
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Found by the clang static analyzer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148540 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-20 14:42:25 +00:00
Rafael Espindola
ace4f2b0d4
Don't use -fvisibility-inlines-hidden on mingw to try to avoid a lot of
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warnings from gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148539 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-20 13:10:10 +00:00
Craig Topper
8f35c13842
Improve 256-bit shuffle splitting to allow 2 sources in each 128-bit lane. As long as only a single lane of the source is used in the lane in the destination. This makes the splitting match much closer to what happens with 256-bit shuffles when AVX is disabled and only 128-bit XMM is allowed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148537 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-20 09:29:03 +00:00
Nick Lewycky
38b6d9dd22
Fix CountCodeReductionForAlloca to more accurately represent what SROA can and
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can't handle. Also don't produce non-zero results for things which won't be
transformed by SROA at all just because we saw the loads/stores before we saw
the use of the address.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148536 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-20 08:35:20 +00:00
Andrew Trick
b5c26ef9da
SCEVExpander fixes. Affects LSR and indvars.
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LSR has gradually been improved to more aggressively reuse existing code, particularly existing phi cycles. This exposed problems with the SCEVExpander's sloppy treatment of its insertion point. I applied some rigor to the insertion point problem that will hopefully avoid an endless bug cycle in this area. Changes:
- Always used properlyDominates to check safe code hoisting.
- The insertion point provided to SCEV is now considered a lower bound. This is usually a block terminator or the use itself. Under no cirumstance may SCEVExpander insert below this point.
- LSR is reponsible for finding a "canonical" insertion point across expansion of different expressions.
- Robust logic to determine whether IV increments are in "expanded" form and/or can be safely hoisted above some insertion point.
Fixes PR11783: SCEVExpander assert.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148535 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-20 07:41:13 +00:00
Craig Topper
0e2037ba2b
Add support for selecting 256-bit PALIGNR.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148532 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-20 05:53:00 +00:00
Rafael Espindola
b28885057e
cmake: pass -fvisibility-inlines-hidden if it is supported. In a
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Release+Asserts build with -DBUILD_SHARED_LIBS=ON, the install
directory goes from 72MB to 70MB.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148530 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-20 04:07:48 +00:00
Eli Friedman
a48678332b
Remove a low-quality test which was failing on Windows; test/CodeGen/X86/sret.ll is a better test for the relevant behavior.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148526 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-20 02:06:40 +00:00
Bill Wendling
b618ea5ff9
When lowering the 'resume' instruction, look to see if we can eliminate the
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'insertvalue' instructions that recreate the structure returned by the
'landingpad' instruction. Because the 'insertvalue' instruction isn't supported
by FastISel, this can save a bit of time during -O0 compilation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148520 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-20 00:53:28 +00:00
Eli Friedman
9a2478ac1a
Support MSVC x86-32 sret convention. PR11688. Patch by Joe Groff.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148513 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-20 00:05:46 +00:00
Chad Rosier
f46fbade8a
Fix typo.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148497 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-19 21:50:08 +00:00
Benjamin Kramer
e545ee20f1
Silence warnings about mixing enums.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148495 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-19 21:11:13 +00:00
Owen Anderson
27ff6b5e2b
Add a dump() implementation for sub-instruction MCOperands.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148493 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-19 19:32:20 +00:00
Owen Anderson
7b672fe03b
Add a new form of MCOperand, for representing sub-instructions. This is intended for supporting bundles through the MC layer, rather than lowering them pre-MC as we currently do for Thumb2 IT blocks. Since these sub-instruction operands hold pointers to the sub-instructions, it is the responsibility of the target's AsmPrinter to provide storage for them for the duration of the EmitInstruction() call.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148492 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-19 19:24:37 +00:00
Dan Gohman
0cdece4389
Set the "tail" flag on pattern-matched objc_storeStrong calls.
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rdar://10531041.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148490 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-19 19:14:36 +00:00
Devang Patel
a951f77ca3
Post process 'and', 'sub' instructions and select better encoding, if available.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148489 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-19 18:40:55 +00:00
Nick Lewycky
f460bf8cd8
Actually, this code handles wrapped sets just fine. Noticed by inspection.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148487 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-19 18:19:42 +00:00
Devang Patel
e60540f380
Intel syntax: There is no need to create unary expr for simple negative displacement.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148486 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-19 18:15:51 +00:00
Devang Patel
ac0f048602
Post process 'xor', 'or' and 'cmp' instructions and select better encoding, if available.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148485 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-19 17:53:25 +00:00
Evgeniy Stepanov
73dd8bbce3
Emit ARM EHABI unwinding instructions for 3 more Thumb instructions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148473 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-19 12:53:06 +00:00
Craig Topper
40385c8104
Folding table additions and fixes for AVX.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148467 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-19 08:50:38 +00:00
Craig Topper
1a7700a3fa
Merge 128-bit and 256-bit SHUFPS/SHUFPD handling.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148466 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-19 08:19:12 +00:00
Evan Cheng
ef2887d348
More bundle related API additions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148465 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-19 07:47:03 +00:00
Evan Cheng
3f9c251e40
Rewriter should definitly rewrite instructions inside bundles.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148464 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-19 07:46:36 +00:00
Chris Lattner
46ada15d42
Introduce a new MutableArrayRef class, which refers to a series of mutable
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T's that are consequtively in memory.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148463 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-19 06:34:52 +00:00
Evan Cheng
a2e435cd23
Enhance finalizeBundle to return end of bundle iterator because it makes sense.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148462 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-19 06:13:10 +00:00
Jim Grosbach
ae69f703d5
ARM assembly diagnostic caret in better position for FPImm.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148459 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-19 02:47:30 +00:00
Jim Grosbach
9363c58dc2
Thumb2 relaxation for tADR to t2ADR.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148456 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-19 02:09:38 +00:00
Jim Grosbach
d26bad079d
Add comment and fix range check in condition.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148455 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-19 01:50:30 +00:00
Jim Grosbach
904b7be27e
Add testcase.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148454 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-19 01:36:59 +00:00
Lang Hames
c2220057c0
Added methods to get the live range immediately before a given slot. Intended to parallel the getVNInfoBefore method.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148453 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-19 01:36:06 +00:00
Nick Lewycky
2faa5d2328
Space after punctuation.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148451 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-19 01:13:47 +00:00
Evan Cheng
bca15f9c80
- Slight change to finalizeBundle() interface. LastMI is not exclusive (pointing
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to instruction right after the last instruction in the bundle.
- Add a finalizeBundle() variant that doesn't specify LastMI. Instead, the code
will find the last instruction in the bundle by following the 'InsideBundle'
marker. This is useful in case bundles are formed early (i.e. during MI
scheduling) but finalized later (i.e. after register allocator has finished
rewriting virtual registers with physical registers).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148444 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-19 00:46:06 +00:00
Nick Lewycky
22de16dc75
Add a TargetOption for disabling tail calls.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148442 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-19 00:34:10 +00:00
Evan Cheng
9b159710eb
Rename Finalizebundle to finalizeBundle to conform to coding guideline.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148440 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-19 00:06:10 +00:00
Jakob Stoklund Olesen
c38c4561cd
Add experimental -x86-use-regmask command line option.
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It adds register mask operands to x86 call instructions. Once all the
backend passes support register mask operands, this will be permanently
enabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148438 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-18 23:52:22 +00:00
Jakob Stoklund Olesen
71f0fc1ca8
Ignore register mask operands when lowering instructions to MC.
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This is similar to implicit register operands. MC doesn't understand
register liveness and call clobbers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148437 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-18 23:52:19 +00:00
Jakob Stoklund Olesen
9cf37e8b48
Add a RegisterMaskSDNode class.
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This SelectionDAG node will be attached to call nodes by LowerCall(),
and eventually becomes a MO_RegisterMask MachineOperand on the
MachineInstr representing the call instruction.
LowerCall() will attach a register mask that depends on the calling
convention.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148436 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-18 23:52:12 +00:00
Rafael Espindola
8887a0f341
Add support for the gnueabihf environment. Patch by Sylvestre Ledru.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148434 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-18 23:35:29 +00:00
Jim Grosbach
0b4c673886
Thumb2 alternate syntax for LDR(literal) and friends.
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Explicit pc-relative syntax. For example, "ldrb r2, [pc, #-22]".
rdar://10250964
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148432 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-18 22:46:46 +00:00
Devang Patel
b8ba13f009
Process instructions after match to select alternative encoding which may be more desirable.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148431 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-18 22:42:29 +00:00
Jim Grosbach
5aa5368ccd
Replace FIXME with explanatory comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148427 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-18 22:04:42 +00:00
Jim Grosbach
256ba4f42a
Thumb2 relaxation for LDR(literal).
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If the fixup is out of range for the Thumb1 instruction, relax it
to the Thumb2 encoding instead.
rdar://10711829
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148424 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-18 21:54:16 +00:00
Jim Grosbach
ec4ceb797a
MCAssembler tweak for determining when a symbol difference is resolved.
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If the two fragments are in the same Atom, then the difference
expression is resolvable at compile time. Previously we were checking
that they were in the same fragment, but that breaks down in the
presence of instruction relaxation which has multiple fragments in the
same atom.
rdar://10711829
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148423 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-18 21:54:12 +00:00
Jim Grosbach
a2ee0fa3ee
Rename pattern for clarity.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148422 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-18 21:54:09 +00:00
Dan Gohman
2f77bbd1bf
Add a depth limit to avoid runaway recursion.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148419 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-18 21:24:45 +00:00
Dan Gohman
1dae3e965c
Use llvm.global_ctors to locate global constructors instead
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of recognizing them by name.
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2012-01-18 21:19:38 +00:00
Jakub Staszak
785a7a97da
Remove trailing spaces and unneeded includes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148415 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-18 21:16:33 +00:00
Nadav Rotem
a402271351
Document the fact that the selection dag changes the vselect condition type
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148411 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-18 20:50:30 +00:00
Lang Hames
bfab85e9b1
Fixed macro condition.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148408 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-18 19:48:31 +00:00