Chandler Carruth [Sat, 16 Jun 2012 00:44:07 +0000 (00:44 +0000)]
Don't call 'FilesToRemove[0]' when the vector is empty, even to compute
the address of it. Found by a checking STL implementation used on
a dragonegg builder. Sorry about this one. =/
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158582
91177308-0d34-0410-b5e6-
96231b3b80d8
Chandler Carruth [Sat, 16 Jun 2012 00:09:41 +0000 (00:09 +0000)]
Harden the Unix signals code to be more async signal safe.
This is likely only the tip of the ice berg, but this particular bug
caused any double-free on a glibc system to turn into a deadlock! It is
not generally safe to either allocate or release heap memory from within
the signal handler. The 'pop_back()' in RemoveFilesToRemove was deleting
memory and causing the deadlock. What's worse, eraseFromDisk in PathV1
has lots of allocation and deallocation paths. We even passed 'true' in
a place that would have caused the *signal handler* to try to run the
'system' system call and shell out to 'rm -rf'. That was never going to
work...
This patch switches the file removal to use a vector of strings so that
the exact text needed for the 'unlink' system call can be stored there.
It switches the loop to be a boring indexed loop, and directly calls
unlink without looking at the error. It also works quite hard to ensure
that calling 'c_str()' is safe, by ensuring that the non-signal-handling
code path that manipulates the vector always leaves it in a state where
every element has already had 'c_str()' called at least once.
I dunno exactly how overkill this is, but it fixes the
deadlock-on-double free issue, and seems likely to prevent any other
issues from sneaking up.
Sorry for not having a test case, but I *really* don't know how to test
signal handling code easily....
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158580
91177308-0d34-0410-b5e6-
96231b3b80d8
Jakob Stoklund Olesen [Fri, 15 Jun 2012 23:48:48 +0000 (23:48 +0000)]
Remove final verification in RABasic.
We now have a proper machine code verifier pass between register
allocation and rewriting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158577
91177308-0d34-0410-b5e6-
96231b3b80d8
Jakob Stoklund Olesen [Fri, 15 Jun 2012 23:47:09 +0000 (23:47 +0000)]
Print out register number in InlineSpiller.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158575
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Trick [Fri, 15 Jun 2012 22:46:31 +0000 (22:46 +0000)]
Unit test for LSR kind=Special fix: r158536.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158570
91177308-0d34-0410-b5e6-
96231b3b80d8
Jakob Stoklund Olesen [Fri, 15 Jun 2012 22:24:22 +0000 (22:24 +0000)]
Accept null PhysReg arguments to checkRegMaskInterference.
Calling checkRegMaskInterference(VirtReg) checks if VirtReg crosses any
regmask operands, regardless of the registers they clobber.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158563
91177308-0d34-0410-b5e6-
96231b3b80d8
Michael J. Spencer [Fri, 15 Jun 2012 22:17:44 +0000 (22:17 +0000)]
[docs] Make it pretty.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158561
91177308-0d34-0410-b5e6-
96231b3b80d8
Kevin Enderby [Fri, 15 Jun 2012 22:14:44 +0000 (22:14 +0000)]
Fix the encoding of the armv7m (MClass) for MSR registers other than aspr,
iaspr, espr and xpsr which also needed to have 0b10 in their mask encoding bits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158560
91177308-0d34-0410-b5e6-
96231b3b80d8
Manman Ren [Fri, 15 Jun 2012 21:32:12 +0000 (21:32 +0000)]
ARM: optimization for sub+abs.
This patch will optimize abs(x-y)
FROM
sub, movs, rsbmi
TO
subs, rsbmi
For abs, we will use cmp instead of movs. This is necessary because we already
have an existing peephole pass which optimizes away cmp following sub.
rdar:
11633193
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158551
91177308-0d34-0410-b5e6-
96231b3b80d8
Kay Tiong Khoo [Fri, 15 Jun 2012 21:04:21 +0000 (21:04 +0000)]
*fixed to separate mnemonic from operands with tab
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158543
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Trick [Fri, 15 Jun 2012 20:07:29 +0000 (20:07 +0000)]
LSR: fix expansion of scaled reg in non-address type formulae.
For non-address users, Base and Scaled registers are not specially
associated to fit an address mode, so SCEVExpander should apply normal
expansion rules. Otherwise we may sink computation into inner loops
that have already been optimized.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158537
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Trick [Fri, 15 Jun 2012 20:07:26 +0000 (20:07 +0000)]
LSR fix: "Special" users are just like "Basic" users but allow -1 scale.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158536
91177308-0d34-0410-b5e6-
96231b3b80d8
Bill Wendling [Fri, 15 Jun 2012 19:30:42 +0000 (19:30 +0000)]
Remove assignments which aren't used afterwards.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158535
91177308-0d34-0410-b5e6-
96231b3b80d8
Bill Wendling [Fri, 15 Jun 2012 19:28:20 +0000 (19:28 +0000)]
Remove assignments which aren't used afterwards.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158534
91177308-0d34-0410-b5e6-
96231b3b80d8
Pete Cooper [Fri, 15 Jun 2012 18:07:29 +0000 (18:07 +0000)]
Allow SROA to split up an array of vectors into multiple vectors, even when the vectors are dynamically indexed
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158529
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Fri, 15 Jun 2012 18:00:24 +0000 (18:00 +0000)]
Some optimizations done by globalopt are safe only for internal linkage, not
linkonce linkage. For example, it is not valid to add unnamed_addr.
This also fixes a crash in g++.dg/opt/static5.C.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158528
91177308-0d34-0410-b5e6-
96231b3b80d8
Jakob Stoklund Olesen [Fri, 15 Jun 2012 17:46:54 +0000 (17:46 +0000)]
Preserve <undef> flags in ARMExpandPseudo.
This probably mostly shows up in bugpoint-generated code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158527
91177308-0d34-0410-b5e6-
96231b3b80d8
Jakob Stoklund Olesen [Fri, 15 Jun 2012 17:36:48 +0000 (17:36 +0000)]
Use regunit liveness in RegisterCoalescer when it is available.
We only do very limited physreg coalescing now, but we still merge
virtual registers into reserved registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158526
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Fri, 15 Jun 2012 14:02:34 +0000 (14:02 +0000)]
Factor macro argument parsing into helper methods and add support for .irp.
Patch extracted from a larger one by the PaX team. I added the testcases
and tightened error handling a bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158523
91177308-0d34-0410-b5e6-
96231b3b80d8
Bill Wendling [Fri, 15 Jun 2012 09:11:47 +0000 (09:11 +0000)]
Free the allocated filename. Found by clang static analyzer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158513
91177308-0d34-0410-b5e6-
96231b3b80d8
Duncan Sands [Fri, 15 Jun 2012 08:37:50 +0000 (08:37 +0000)]
Fix issues (infinite loop and/or crash) with self-referential instructions, for
example degenerate phi nodes and binops that use themselves in unreachable code.
Thanks to Charles Davis for the testcase that uncovered this can of worms.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158508
91177308-0d34-0410-b5e6-
96231b3b80d8
Craig Topper [Fri, 15 Jun 2012 07:02:58 +0000 (07:02 +0000)]
Move AVX version of convert instructions that write to GPRs to the Op1 table.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158497
91177308-0d34-0410-b5e6-
96231b3b80d8
Marshall Clow [Fri, 15 Jun 2012 01:15:47 +0000 (01:15 +0000)]
Had a closing brace inside an #ifdef -- oops!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158485
91177308-0d34-0410-b5e6-
96231b3b80d8
Marshall Clow [Fri, 15 Jun 2012 01:08:25 +0000 (01:08 +0000)]
Adding acessors to COFFObjectFile so that clients can get at the (non-generic) bits
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158484
91177308-0d34-0410-b5e6-
96231b3b80d8
Pete Cooper [Thu, 14 Jun 2012 23:53:53 +0000 (23:53 +0000)]
Recommit r158407: Allow SROA to look at a vector type and see if the offset is out of range to be replaced with a scalar access. Now with additional fix and test for indexing into a vector inside a struct
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158479
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Thu, 14 Jun 2012 22:48:13 +0000 (22:48 +0000)]
Implement the isSafeToDiscardIfUnused predicate and use it in globalopt and
globaldce. Globaldce was already removing linkonce globals, but globalopt was
not.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158476
91177308-0d34-0410-b5e6-
96231b3b80d8
Pete Cooper [Thu, 14 Jun 2012 22:12:58 +0000 (22:12 +0000)]
Move X86::VCVTTSD2SIrr from the 2 operand to 1 operand MemRegOp table.
Can someone with more knowledge of this please look at other entries
to see if others need moved.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158474
91177308-0d34-0410-b5e6-
96231b3b80d8
Akira Hatanaka [Thu, 14 Jun 2012 21:10:56 +0000 (21:10 +0000)]
Fix coding style violations. Remove white spaces and tabs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158471
91177308-0d34-0410-b5e6-
96231b3b80d8
Akira Hatanaka [Thu, 14 Jun 2012 21:03:23 +0000 (21:03 +0000)]
1. introduce MipsPat in place of Pat in order to exclude those from
being used by Mips16 or Micro Mips
2. clean up a few lines too long encountered
Patch by Reed Kotler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158470
91177308-0d34-0410-b5e6-
96231b3b80d8
Akira Hatanaka [Thu, 14 Jun 2012 20:51:13 +0000 (20:51 +0000)]
Make machine verifier check the first instruction of the last bundle instead of
the last instruction of a basic block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158468
91177308-0d34-0410-b5e6-
96231b3b80d8
Lang Hames [Thu, 14 Jun 2012 20:37:15 +0000 (20:37 +0000)]
Make comment slightly more helpful.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158467
91177308-0d34-0410-b5e6-
96231b3b80d8
Pete Cooper [Thu, 14 Jun 2012 18:32:52 +0000 (18:32 +0000)]
Revert r158454: Allow SROA to look at a vector type... Its breaking the vectorise buildbot
This reverts commit
12c1f86ffa731e2952c80d2cc577000c96b8962c.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158462
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Trick [Thu, 14 Jun 2012 17:48:49 +0000 (17:48 +0000)]
misched: disable SSA check pending PR13112.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158461
91177308-0d34-0410-b5e6-
96231b3b80d8
Stepan Dyatkovskiy [Thu, 14 Jun 2012 16:59:43 +0000 (16:59 +0000)]
SmallMap, FlatArrayMap::copyFrom
Replaced memcpy with std::copy, since the first one may work improperly with non POD data.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158457
91177308-0d34-0410-b5e6-
96231b3b80d8
David Blaikie [Thu, 14 Jun 2012 16:52:55 +0000 (16:52 +0000)]
Remove/modify C backend references from LLVM documentation.
Patch by Wei-Ren Chen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158456
91177308-0d34-0410-b5e6-
96231b3b80d8
David Blaikie [Thu, 14 Jun 2012 16:43:11 +0000 (16:43 +0000)]
Remove C backend reference from the FAQ.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158455
91177308-0d34-0410-b5e6-
96231b3b80d8
Pete Cooper [Thu, 14 Jun 2012 16:38:13 +0000 (16:38 +0000)]
Recommit r158407: Allow SROA to look at a vector type and see if the offset is out of range to be replaced with a scalar access. Now with additional fix and test for indexing into a vector inside a struct
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158454
91177308-0d34-0410-b5e6-
96231b3b80d8
Duncan Sands [Thu, 14 Jun 2012 14:58:28 +0000 (14:58 +0000)]
Clarify a bit that the types have to be the same. Came up on IRC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158453
91177308-0d34-0410-b5e6-
96231b3b80d8
NAKAMURA Takumi [Thu, 14 Jun 2012 12:29:48 +0000 (12:29 +0000)]
MipsLongBranch.cpp: Tweak llvm::next() to appease msvc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158446
91177308-0d34-0410-b5e6-
96231b3b80d8
Richard Barton [Thu, 14 Jun 2012 10:48:04 +0000 (10:48 +0000)]
Replace assertion failure for badly formatted CPS instrution with error message.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158445
91177308-0d34-0410-b5e6-
96231b3b80d8
Jush Lu [Thu, 14 Jun 2012 06:08:19 +0000 (06:08 +0000)]
Cleanup whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158443
91177308-0d34-0410-b5e6-
96231b3b80d8
Manman Ren [Thu, 14 Jun 2012 06:04:02 +0000 (06:04 +0000)]
Revert: test/CodeGen/ARM/iabs.ll in r158441
Sorry that I accidently checked in this file with my previous commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158442
91177308-0d34-0410-b5e6-
96231b3b80d8
Manman Ren [Thu, 14 Jun 2012 05:57:42 +0000 (05:57 +0000)]
InstCombine: fix a bug when combining (fcmp cc0 x, y) && (fcmp cc1 x, y).
uno && ueq was converted to ueq, it should be converted to uno.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158441
91177308-0d34-0410-b5e6-
96231b3b80d8
Akira Hatanaka [Thu, 14 Jun 2012 02:12:21 +0000 (02:12 +0000)]
Test case for MIPS long branch pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158438
91177308-0d34-0410-b5e6-
96231b3b80d8
Akira Hatanaka [Thu, 14 Jun 2012 01:23:55 +0000 (01:23 +0000)]
Fix Mips/CMakeLists.txt.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158437
91177308-0d34-0410-b5e6-
96231b3b80d8
Akira Hatanaka [Thu, 14 Jun 2012 01:22:24 +0000 (01:22 +0000)]
Add file MipsLongBranch.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158436
91177308-0d34-0410-b5e6-
96231b3b80d8
Akira Hatanaka [Thu, 14 Jun 2012 01:21:00 +0000 (01:21 +0000)]
Fix test cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158435
91177308-0d34-0410-b5e6-
96231b3b80d8
Akira Hatanaka [Thu, 14 Jun 2012 01:20:12 +0000 (01:20 +0000)]
Remove code in MipsAsmPrinter and MipsMCInstLower.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158434
91177308-0d34-0410-b5e6-
96231b3b80d8
Akira Hatanaka [Thu, 14 Jun 2012 01:19:35 +0000 (01:19 +0000)]
Add long branch expansion pass for MIPS.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158433
91177308-0d34-0410-b5e6-
96231b3b80d8
Akira Hatanaka [Thu, 14 Jun 2012 01:17:59 +0000 (01:17 +0000)]
Add AT to the list of registers clobbered by branches so that it is available
as a scratch register when they are expanded to long branches.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158432
91177308-0d34-0410-b5e6-
96231b3b80d8
Akira Hatanaka [Thu, 14 Jun 2012 01:17:36 +0000 (01:17 +0000)]
In MipsRegisterInfo::eliminateFrameIndex, call Mips::loadImmediate
to load an immediate that does not fit into 16-bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158431
91177308-0d34-0410-b5e6-
96231b3b80d8
Akira Hatanaka [Thu, 14 Jun 2012 01:17:13 +0000 (01:17 +0000)]
In MipsFrameLowering::emitPrologue and emitEpilogue, call Mips::loadImmediate
to load an immediate that does not fit into 16-bit. Also, take into
consideration the global base register slot on the stack when computing the
stack size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158430
91177308-0d34-0410-b5e6-
96231b3b80d8
Akira Hatanaka [Thu, 14 Jun 2012 01:16:45 +0000 (01:16 +0000)]
Define function MipsInstrInfo::GetInstSizeInBytes, which will be called to
compute the size of basic blocks in a function. Also, define a function which
emits a series of instructions to load an immediate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158429
91177308-0d34-0410-b5e6-
96231b3b80d8
Akira Hatanaka [Thu, 14 Jun 2012 01:16:15 +0000 (01:16 +0000)]
In MipsISelDAGToDAG.cpp, store the global base register to a stack frame object.
Long-branches need access to the global base register to get the destination
address.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158428
91177308-0d34-0410-b5e6-
96231b3b80d8
Akira Hatanaka [Thu, 14 Jun 2012 01:15:36 +0000 (01:15 +0000)]
Add methods to MipsFunctionInfo for initializing and accessing the stack frame
object for the global base register.
This is the first of a series of patches which implements long branch expansion
for MIPS.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158427
91177308-0d34-0410-b5e6-
96231b3b80d8
Akira Hatanaka [Wed, 13 Jun 2012 23:25:52 +0000 (23:25 +0000)]
Bundle jump/branch instructions with the instructions in the delay slot in
delay slot filler pass of MIPS, per suggestion of Jakob Stoklund Olesen.
This change, along with the fix in r158154, enables machine verification
to be run after delay slot filling.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158426
91177308-0d34-0410-b5e6-
96231b3b80d8
Chandler Carruth [Wed, 13 Jun 2012 21:44:07 +0000 (21:44 +0000)]
Group the 'unsigned' members after the pointer to avoid 4 bytes of
padding on x86-64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158421
91177308-0d34-0410-b5e6-
96231b3b80d8
Akira Hatanaka [Wed, 13 Jun 2012 20:33:18 +0000 (20:33 +0000)]
Implement a DAGCombine in MipsISelLowering.cpp which transforms the following
pattern:
(add v0, (add v1, abs_lo(tjt))) => (add (add v0, v1), abs_lo(tjt))
"tjt" is a TargetJumpTable node.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158419
91177308-0d34-0410-b5e6-
96231b3b80d8
Akira Hatanaka [Wed, 13 Jun 2012 19:33:32 +0000 (19:33 +0000)]
Set a higher value for maxStoresPerMemcpy in MipsISelLowering.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158414
91177308-0d34-0410-b5e6-
96231b3b80d8
Akira Hatanaka [Wed, 13 Jun 2012 19:06:08 +0000 (19:06 +0000)]
Simplify CreateLoadLR and CreateStoreLR in MipsISelLowering.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158413
91177308-0d34-0410-b5e6-
96231b3b80d8
Akira Hatanaka [Wed, 13 Jun 2012 18:06:00 +0000 (18:06 +0000)]
Implement fastcc calling convention for MIPS.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158410
91177308-0d34-0410-b5e6-
96231b3b80d8
Richard Osborne [Wed, 13 Jun 2012 17:59:12 +0000 (17:59 +0000)]
Fix pattern for MKMSK instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158409
91177308-0d34-0410-b5e6-
96231b3b80d8
Pete Cooper [Wed, 13 Jun 2012 17:55:22 +0000 (17:55 +0000)]
Revert "Allow SROA to look at a vector type and see if the offset is out of range to be replaced with a scalar access"
This reverts commit
51786e0aaec76b973205066bd44f7f427b21969f.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158408
91177308-0d34-0410-b5e6-
96231b3b80d8
Pete Cooper [Wed, 13 Jun 2012 17:30:34 +0000 (17:30 +0000)]
Allow SROA to look at a vector type and see if the offset is out of range to be replaced with a scalar access
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158407
91177308-0d34-0410-b5e6-
96231b3b80d8
Argyrios Kyrtzidis [Wed, 13 Jun 2012 16:30:06 +0000 (16:30 +0000)]
Fix building ThreadLocal.cpp with --disable-threads.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158405
91177308-0d34-0410-b5e6-
96231b3b80d8
Kay Tiong Khoo [Wed, 13 Jun 2012 15:53:04 +0000 (15:53 +0000)]
*typo: Cyles changed to Cycles
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158404
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Wed, 13 Jun 2012 13:30:24 +0000 (13:30 +0000)]
Use LTO_CODEGEN_PIC_MODEL_DYNAMIC for PIE. This requirest a git version of
gold to work. Since the enum value LDPO_PIE has just been added to plugin-api.h,
use a numeric constant for now so that we don't require an unreleased
version of gold to build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158402
91177308-0d34-0410-b5e6-
96231b3b80d8
Duncan Sands [Wed, 13 Jun 2012 12:15:56 +0000 (12:15 +0000)]
It is possible for several constants which aren't individually absorbing to
combine to the absorbing element. Thanks to nbjoerg on IRC for pointing this
out.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158399
91177308-0d34-0410-b5e6-
96231b3b80d8
Duncan Sands [Wed, 13 Jun 2012 09:42:13 +0000 (09:42 +0000)]
When linearizing a multiplication, return at once if we see a factor of zero,
since then the entire expression must equal zero (similarly for other operations
with an absorbing element). With this in place a bunch of reassociate code for
handling constants is dead since it is all taken care of when linearizing. No
intended functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158398
91177308-0d34-0410-b5e6-
96231b3b80d8
Craig Topper [Wed, 13 Jun 2012 07:18:53 +0000 (07:18 +0000)]
Fix intrinsics for XOP frczss/sd instructions. These instructions only take one source register and zero the upper bits of the destination rather than preserving them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158396
91177308-0d34-0410-b5e6-
96231b3b80d8
Hal Finkel [Wed, 13 Jun 2012 05:55:09 +0000 (05:55 +0000)]
Add another missing 64-bit itinerary definition for the PPC A2 core.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158393
91177308-0d34-0410-b5e6-
96231b3b80d8
Manman Ren [Wed, 13 Jun 2012 05:43:29 +0000 (05:43 +0000)]
SimplifyCFG: fold unconditional branch to its predecessor if profitable.
This patch extends FoldBranchToCommonDest to fold unconditional branches.
For unconditional branches, we fold them if it is easy to update the phi nodes
in the common successors.
rdar://
10554090
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158392
91177308-0d34-0410-b5e6-
96231b3b80d8
Jakob Stoklund Olesen [Wed, 13 Jun 2012 05:15:49 +0000 (05:15 +0000)]
Eliminate struct TableGenBackend.
TableGen backends are simply written as functions now.
Patch by Sean Silva!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158389
91177308-0d34-0410-b5e6-
96231b3b80d8
Akira Hatanaka [Wed, 13 Jun 2012 02:42:47 +0000 (02:42 +0000)]
Clean up trailing blanks in Mips16InstrFormats.td
Patch by Reed Kotler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158382
91177308-0d34-0410-b5e6-
96231b3b80d8
Akira Hatanaka [Wed, 13 Jun 2012 02:41:14 +0000 (02:41 +0000)]
disable use of directive .set nomicromips
until this directive is pushed in gas to open source fsf
Patch by Reed Kotler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158381
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Trick [Wed, 13 Jun 2012 02:39:03 +0000 (02:39 +0000)]
sched: fix latency of memory dependence chain edges for consistency.
For store->load dependencies that may alias, we should always use
TrueMemOrderLatency, which may eventually become a subtarget hook. In
effect, we should guarantee at least TrueMemOrderLatency on at least
one DAG path from a store to a may-alias load.
This should fix the standard mode as well as -enable-aa-sched-mi".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158380
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Trick [Wed, 13 Jun 2012 02:39:00 +0000 (02:39 +0000)]
sched: Avoid trivially redundant DAG edges. Take the one with higher latency.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158379
91177308-0d34-0410-b5e6-
96231b3b80d8
Akira Hatanaka [Wed, 13 Jun 2012 02:37:54 +0000 (02:37 +0000)]
1. fix places where immed is used in place of imm to be consistent with
non mips16
2. fix some comments to change OPcode->EXTEND for extended instructions
Patch by Reed Kotler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158378
91177308-0d34-0410-b5e6-
96231b3b80d8
Hal Finkel [Tue, 12 Jun 2012 20:32:29 +0000 (20:32 +0000)]
Add some missing 64-bit itinerary definitions for the PPC A2 core.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158373
91177308-0d34-0410-b5e6-
96231b3b80d8
Duncan Sands [Tue, 12 Jun 2012 20:26:43 +0000 (20:26 +0000)]
Use DenseMap as SmallMap workaround rather than std::map, at Chandler's request.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158371
91177308-0d34-0410-b5e6-
96231b3b80d8
Duncan Sands [Tue, 12 Jun 2012 20:16:51 +0000 (20:16 +0000)]
Use std::map rather than SmallMap because SmallMap assumes that the value has
POD type, causing memory corruption when mapping to APInts with bitwidth > 64.
Merge another crash testcase into crash.ll while there.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158369
91177308-0d34-0410-b5e6-
96231b3b80d8
Chad Rosier [Tue, 12 Jun 2012 19:25:13 +0000 (19:25 +0000)]
[arm-fast-isel] Add support for -arm-long-calls.
Patch by Jush Lu <jush.msn@gmail.com>.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158368
91177308-0d34-0410-b5e6-
96231b3b80d8
Hal Finkel [Tue, 12 Jun 2012 19:01:24 +0000 (19:01 +0000)]
Split out the PPC instruction class IntSimple from IntGeneral.
On the POWER7, adds and logical operations can also be handled
in the load/store pipelines. We'll call these IntSimple.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158366
91177308-0d34-0410-b5e6-
96231b3b80d8
David Blaikie [Tue, 12 Jun 2012 17:06:32 +0000 (17:06 +0000)]
Remove use of GNU extension to resolve Clang warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158364
91177308-0d34-0410-b5e6-
96231b3b80d8
Hal Finkel [Tue, 12 Jun 2012 16:39:23 +0000 (16:39 +0000)]
Fixes for PPC host detection and features.
POWER4 is a 64-bit CPU (better matched to the 970).
The g3 is really the 750 (no altivec), the g4+ is the 74xx (not the 750).
Patch by Andreas Tobler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158363
91177308-0d34-0410-b5e6-
96231b3b80d8
Dmitri Gribenko [Tue, 12 Jun 2012 15:45:07 +0000 (15:45 +0000)]
Use correct syntax highliter in code blocks. Noticed by Sean Silva.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158359
91177308-0d34-0410-b5e6-
96231b3b80d8
Duncan Sands [Tue, 12 Jun 2012 14:33:56 +0000 (14:33 +0000)]
Now that Reassociate's LinearizeExprTree can look through arbitrary expression
topologies, it is quite possible for a leaf node to have huge multiplicity, for
example: x0 = x*x, x1 = x0*x0, x2 = x1*x1, ... rapidly gives a value which is x
raised to a vast power (the multiplicity, or weight, of x). This patch fixes
the computation of weights by correctly computing them no matter how big they
are, rather than just overflowing and getting a wrong value. It turns out that
the weight for a value never needs more bits to represent than the value itself,
so it is enough to represent weights as APInts of the same bitwidth and do the
right overflow-avoiding dance steps when computing weights. As a side-effect it
reduces the number of multiplies needed in some cases of large powers. While
there, in view of external uses (eg by the vectorizer) I made LinearizeExprTree
static, pushing the rank computation out into users. This is progress towards
fixing PR13021.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158358
91177308-0d34-0410-b5e6-
96231b3b80d8
Hal Finkel [Tue, 12 Jun 2012 04:21:36 +0000 (04:21 +0000)]
Add two newlines in ParseSubtargetFeatures's debug output after the CPU is printed.
There is otherwise not a newline between the CPU name and the start of the next
pass's output which makes both difficult to read.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158350
91177308-0d34-0410-b5e6-
96231b3b80d8
Hal Finkel [Tue, 12 Jun 2012 03:03:13 +0000 (03:03 +0000)]
Reapply r158337, this time properly protect Darwin/PPC host CPU use with __ppc__.
Original commit message:
Move PPC host-CPU detection logic from PPCSubtarget into sys::getHostCPUName().
Both the new Linux functionality and the old Darwin functions have been moved.
This change also allows this information to be queried directly by clang and
other frontends (clang, for example, will now have real -mcpu=native support).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158349
91177308-0d34-0410-b5e6-
96231b3b80d8
Argyrios Kyrtzidis [Tue, 12 Jun 2012 01:06:16 +0000 (01:06 +0000)]
Satisfy C++ aliasing rules, per suggestion by Chandler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158346
91177308-0d34-0410-b5e6-
96231b3b80d8
Jakob Stoklund Olesen [Tue, 12 Jun 2012 00:58:40 +0000 (00:58 +0000)]
Revert r158337 "Move PPC host-CPU detection logic from PPCSubtarget into sys::getHostCPUName()."
This commit broke most of the PowerPC unit tests when running on
Intel/Apple.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158345
91177308-0d34-0410-b5e6-
96231b3b80d8
Dmitri Gribenko [Tue, 12 Jun 2012 00:48:47 +0000 (00:48 +0000)]
FileCheck docs: remove leftover HTML markup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158344
91177308-0d34-0410-b5e6-
96231b3b80d8
Argyrios Kyrtzidis [Tue, 12 Jun 2012 00:21:31 +0000 (00:21 +0000)]
For llvm::sys::ThreadLocalImpl instead of malloc'ing the platform-specific
thread local data, embed them in the class using a uint64_t and make sure
we get compiler errors if there's a platform where this is not big enough.
This makes ThreadLocal more safe for using it in conjunction with CrashRecoveryContext.
Related to crash in rdar://
11434201.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158342
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Trick [Mon, 11 Jun 2012 23:42:23 +0000 (23:42 +0000)]
misched: When querying RegisterPressureTracker, always save current and max pressure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158340
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Trick [Mon, 11 Jun 2012 23:42:20 +0000 (23:42 +0000)]
misched: regpressure getMaxPressureDelta, revert accidental checkin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158339
91177308-0d34-0410-b5e6-
96231b3b80d8
Hal Finkel [Mon, 11 Jun 2012 23:14:31 +0000 (23:14 +0000)]
Move PPC host-CPU detection logic from PPCSubtarget into sys::getHostCPUName().
Both the new Linux functionality and the old Darwin functions have been moved.
This change also allows this information to be queried directly by clang and
other frontends (clang, for example, will now have real -mcpu=native support).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158337
91177308-0d34-0410-b5e6-
96231b3b80d8
Jakob Stoklund Olesen [Mon, 11 Jun 2012 21:14:28 +0000 (21:14 +0000)]
Fix test that depends on register allocation.
The test is really checking the prolog/epilog load/store multiple
formation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158328
91177308-0d34-0410-b5e6-
96231b3b80d8
Hal Finkel [Mon, 11 Jun 2012 19:57:04 +0000 (19:57 +0000)]
Enable MFOCRF generation on the PPC A2 core.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158324
91177308-0d34-0410-b5e6-
96231b3b80d8
Hal Finkel [Mon, 11 Jun 2012 19:57:01 +0000 (19:57 +0000)]
Rename the PPC target feature gpul to mfocrf.
The PPC target feature gpul (IsGigaProcessor) was only used for one thing:
To enable the generation of the MFOCRF instruction. Furthermore, this
instruction is available on other PPC cores outside of the G5 line. This
feature now corresponds to the HasMFOCRF flag.
No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158323
91177308-0d34-0410-b5e6-
96231b3b80d8
Hal Finkel [Mon, 11 Jun 2012 19:56:57 +0000 (19:56 +0000)]
Add A2 to the list of PPC CPUs recognized by Linux host CPU-type detection.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158322
91177308-0d34-0410-b5e6-
96231b3b80d8