Rafael Espindola [Thu, 25 Nov 2010 15:32:56 +0000 (15:32 +0000)]
Factor some code to parseSectionFlags and fix the default type of a section.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120145
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Michael J. Spencer [Thu, 25 Nov 2010 01:53:59 +0000 (01:53 +0000)]
system_error: Even more unsupported error numbers :(.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120139
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Nick Lewycky [Wed, 24 Nov 2010 22:04:20 +0000 (22:04 +0000)]
Treat a call of function pointer like a load of the pointer when considering
whether the pointer can be replaced with the global variable it is a copy of.
Fixes PR8680.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120126
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Rafael Espindola [Wed, 24 Nov 2010 21:57:39 +0000 (21:57 +0000)]
Behave a bit more like gnu as and use the symbol (instead of the section)
for any relocation to a symbol defined in a tls section.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120121
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Michael J. Spencer [Wed, 24 Nov 2010 20:07:14 +0000 (20:07 +0000)]
80 col.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120111
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Michael J. Spencer [Wed, 24 Nov 2010 19:35:15 +0000 (19:35 +0000)]
google test depends on Support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120105
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Rafael Espindola [Wed, 24 Nov 2010 19:23:50 +0000 (19:23 +0000)]
Relocate with the symbol if the relocation is of kind NTPOFF.
Patch by David Meyer, I added the test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120104
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Michael J. Spencer [Wed, 24 Nov 2010 19:20:28 +0000 (19:20 +0000)]
unittests: Add initial Path-V2 test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120103
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Michael J. Spencer [Wed, 24 Nov 2010 19:20:19 +0000 (19:20 +0000)]
Path Version 2.
Based on TR2/boost filesystem (v3) API, but modified to remove exceptions.
Do not include this file directly, when it is ready, it will be included by
include/llvm/System/Path.h.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120102
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Michael J. Spencer [Wed, 24 Nov 2010 19:20:05 +0000 (19:20 +0000)]
unittests: Add SystemTests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120101
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Rafael Espindola [Wed, 24 Nov 2010 18:51:21 +0000 (18:51 +0000)]
Fix and add tests for all cases in x86 and x86_64 where gnu as implicitly
sets the type of a symbol to STT_TLS.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120100
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Rafael Espindola [Wed, 24 Nov 2010 18:03:57 +0000 (18:03 +0000)]
Testcase for r120017.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120099
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Wesley Peck [Wed, 24 Nov 2010 16:32:35 +0000 (16:32 +0000)]
Updating MBlaze .mask and .frame directives to match GCC's output and fixing regression introduced in 120095 by checking MCStreamer::hasRawTextSupport.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120097
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Wesley Peck [Wed, 24 Nov 2010 15:39:32 +0000 (15:39 +0000)]
1. Fixing error where basic block labels were not being printed out when they need to be for the MBlaze backend because AsmPrinter::isBlockOnlyReachableByFallthrough does not take into account delay slots.
2. Re-adding .mask and .frame directives in printed assembly.
3. Adding .ent and .end directives in printed assembly.
4. Minor cleanups to MBlaze backend.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120095
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Kalle Raiskila [Wed, 24 Nov 2010 12:59:16 +0000 (12:59 +0000)]
Use i8 as SETCC result type for i1 in SPU.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120092
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Kalle Raiskila [Wed, 24 Nov 2010 11:42:17 +0000 (11:42 +0000)]
Allow for 'fcmp ogt' in SPU.
Fix by Visa Putkinen!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120090
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Rafael Espindola [Wed, 24 Nov 2010 02:19:40 +0000 (02:19 +0000)]
If a symbol is used as tls, mark it as tls even if not declare as so. Probably
fixes PR8659.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120076
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NAKAMURA Takumi [Wed, 24 Nov 2010 01:29:45 +0000 (01:29 +0000)]
include/llvm/System/system_error.h: ECANCELED is undefined on Cygwin-1.5.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120072
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Ted Kremenek [Wed, 24 Nov 2010 00:54:28 +0000 (00:54 +0000)]
Tweak ImmutableMap/ImmutableSet/ImmutableList APIs
to use lowercase letters for the start of most
method names and to replace some method names
with more descriptive names (e.g., "getLeft()"
instead of "Left()"). No real functionality
change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120070
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Jakob Stoklund Olesen [Wed, 24 Nov 2010 00:03:32 +0000 (00:03 +0000)]
Generalize overflowLeaf to also handle overflows in branch nodes.
This doesn't quite work yet because the calls to treeDecrement and treeIncrement
operate at the leaf level, not on pathNode(Level) as required.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120068
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Chris Lattner [Tue, 23 Nov 2010 22:20:27 +0000 (22:20 +0000)]
add a MemoryBuffer::getOpenFile method, which turns an open
file descriptor into a MemoryBuffer (and closes the FD).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120065
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Michael J. Spencer [Tue, 23 Nov 2010 21:09:11 +0000 (21:09 +0000)]
system_error: Add fixme.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120059
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Duncan Sands [Tue, 23 Nov 2010 20:42:39 +0000 (20:42 +0000)]
Rename SimplifyDistributed to the more meaningfull name SimplifyByFactorizing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120051
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Benjamin Kramer [Tue, 23 Nov 2010 20:33:57 +0000 (20:33 +0000)]
The srem -> urem transform is not safe for any divisor that's not a power of two.
E.g. -5 % 5 is 0 with srem and 1 with urem.
Also addresses Frits van Bommel's comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120049
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Duncan Sands [Tue, 23 Nov 2010 20:26:33 +0000 (20:26 +0000)]
Replace calls to ConstantFoldInstruction with calls to SimplifyInstruction
in two places that are really interested in simplified instructions, not
constants.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120044
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Duncan Sands [Tue, 23 Nov 2010 20:24:21 +0000 (20:24 +0000)]
Constant folding here is pointless, because InstructionSimplify
(which does constant folding and more) is called a few lines
later.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120042
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Jason W Kim [Tue, 23 Nov 2010 19:40:36 +0000 (19:40 +0000)]
Move the ARM reloc constants to Support/ELF.h
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120035
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Bob Wilson [Tue, 23 Nov 2010 19:38:38 +0000 (19:38 +0000)]
Recognize sign/zero-extended constant BUILD_VECTORs for VMULL operations.
We need to check if the individual vector elements are sign/zero-extended
values. For now this only handles constants values. Radar
8687140.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120034
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Bob Wilson [Tue, 23 Nov 2010 19:38:34 +0000 (19:38 +0000)]
Fix copy-and-paste error in exception message.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120033
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Benjamin Kramer [Tue, 23 Nov 2010 18:52:42 +0000 (18:52 +0000)]
InstCombine: Reduce "X shift (A srem B)" to "X shift (A urem B)" iff B is positive.
This allows to transform the rem in "1 << ((int)x % 8);" to an and.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120028
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Duncan Sands [Tue, 23 Nov 2010 15:28:14 +0000 (15:28 +0000)]
Propagate LeftDistributes and RightDistributes into their only uses.
Stylistic improvement suggested by Frits van Bommel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120026
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Duncan Sands [Tue, 23 Nov 2010 15:25:34 +0000 (15:25 +0000)]
Fix typo pointed out by Frits van Bommel and Marius Wachtler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120025
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Duncan Sands [Tue, 23 Nov 2010 14:23:47 +0000 (14:23 +0000)]
Exploit distributive laws (eg: And distributes over Or, Mul over Add, etc) in a
fairly systematic way in instcombine. Some of these cases were already dealt
with, in which case I removed the existing code. The case of Add has a bunch of
funky logic which covers some of this plus a few variants (considers shifts to be
a form of multiplication), which I didn't touch. The simplification performed is:
A*B+A*C -> A*(B+C). The improvement is to do this in cases that were not already
handled [such as A*B-A*C -> A*(B-C), which was reported on the mailing list], and
also to do it more often by not checking for "only one use" if "B+C" simplifies.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120024
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Kalle Raiskila [Tue, 23 Nov 2010 13:27:59 +0000 (13:27 +0000)]
Division by pow-of-2 is not cheap on SPU, do it with
shifts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120022
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Rafael Espindola [Tue, 23 Nov 2010 11:23:24 +0000 (11:23 +0000)]
Implement the rex64 prefix.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120017
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Duncan Sands [Tue, 23 Nov 2010 10:50:08 +0000 (10:50 +0000)]
Expand a little on the description of what InstructionSimplify does.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120016
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Duncan Sands [Tue, 23 Nov 2010 10:16:18 +0000 (10:16 +0000)]
Clarify that constant folding of instructions applies when all operands
are constant. There was in fact one exception to this (phi nodes) - so
remove that exception (InstructionSimplify handles this so there should
be no loss).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120015
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Rafael Espindola [Tue, 23 Nov 2010 08:08:33 +0000 (08:08 +0000)]
Invalidate the layout on any relaxation, not just Instructions. Bug found by David Meyer.
While here, remove unused argument and rename UpdateForSlide to Invalidate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120009
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Rafael Espindola [Tue, 23 Nov 2010 07:20:12 +0000 (07:20 +0000)]
Produce a relocation for pcrel absolute values. Based on a patch by David Meyer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120006
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Cameron Zwarich [Tue, 23 Nov 2010 06:32:37 +0000 (06:32 +0000)]
Optimize a common case in the Lengauer-Tarjan dominators algorithm. This gives a
9.7% speedup running domtree on test-suite.
Reviewed by Chris Lattner.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120003
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Chris Lattner [Tue, 23 Nov 2010 06:09:51 +0000 (06:09 +0000)]
Revert functionality doug added in r98575 that was never
documented and only used by some clang stuff I just removed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120002
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Rafael Espindola [Tue, 23 Nov 2010 05:49:35 +0000 (05:49 +0000)]
Reuse data fragments while lowering. Patch by David Meyer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119999
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Zhanyong Wan [Tue, 23 Nov 2010 05:03:07 +0000 (05:03 +0000)]
Fix formatting nits in the coding standards. Reviewed by clattner.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119998
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Chris Lattner [Tue, 23 Nov 2010 04:26:12 +0000 (04:26 +0000)]
fix this harder.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119994
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Chris Lattner [Tue, 23 Nov 2010 04:19:56 +0000 (04:19 +0000)]
fix a bug I introduced on the other side of the #ifdef
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119993
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Chris Lattner [Tue, 23 Nov 2010 04:04:25 +0000 (04:04 +0000)]
reimplement SwapByteOrder.h in terms of overloading instead of
being in terms of excessively complex template logic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119992
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Wesley Peck [Tue, 23 Nov 2010 03:31:01 +0000 (03:31 +0000)]
Renaming ISD::BIT_CONVERT to ISD::BITCAST to better reflect the LLVM IR concept.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119990
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Chris Lattner [Tue, 23 Nov 2010 02:47:22 +0000 (02:47 +0000)]
add a 'LLVMConstIntOfArbitraryPrecision' api to the C api,
patch by Greg Pfeil!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119989
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Chris Lattner [Tue, 23 Nov 2010 02:42:04 +0000 (02:42 +0000)]
duncan's spider sense was right, I completely reversed the condition
on this instcombine xform. This fixes a miscompilation of 403.gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119988
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Chris Lattner [Tue, 23 Nov 2010 02:26:52 +0000 (02:26 +0000)]
filecheckize
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119987
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Jason W Kim [Mon, 22 Nov 2010 22:05:16 +0000 (22:05 +0000)]
Fixed some style issues (no _, no spc after !)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119986
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Rafael Espindola [Mon, 22 Nov 2010 21:49:05 +0000 (21:49 +0000)]
Remove duplicated constants. Thanks to Jason for noticing it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119985
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Benjamin Kramer [Mon, 22 Nov 2010 20:31:27 +0000 (20:31 +0000)]
InstCombine: Implement X - A*-B -> X + A*B.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119984
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Jason W Kim [Mon, 22 Nov 2010 18:57:00 +0000 (18:57 +0000)]
Make the <ARCH>ELFObjectWriter statics private
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119982
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Jason W Kim [Mon, 22 Nov 2010 18:47:05 +0000 (18:47 +0000)]
Fix misplaced statics.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119981
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Jason W Kim [Mon, 22 Nov 2010 18:42:07 +0000 (18:42 +0000)]
Kill trailing whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119979
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Jason W Kim [Mon, 22 Nov 2010 18:41:13 +0000 (18:41 +0000)]
Refactor the ELFRelocationEntry (pull up) and move the arch-specific statics to inside the class where it belongs.
Next step is to rationally break apart the RecordRelocation()
Probably the step will be to have 1 member function for ech slot of the ELFRelocationEntry()
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119978
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Evan Cheng [Mon, 22 Nov 2010 18:12:04 +0000 (18:12 +0000)]
Fix epilogue codegen to avoid leaving the stack pointer in an invalid
state. Previously Thumb2 would restore sp from fp like this:
mov sp, r7
sub, sp, #4
If an interrupt is taken after the 'mov' but before the 'sub', callee-saved
registers might be clobbered by the interrupt handler. Instead, try
restoring directly from sp:
add sp, #4
Or, if necessary (with VLA, etc.) use a scratch register to compute sp and
then restore it:
sub.w r4, r7, #8
mov sp, r7
rdar://
8465407
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119977
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Mikhail Glushenkov [Mon, 22 Nov 2010 17:10:20 +0000 (17:10 +0000)]
Add a newline.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119976
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Mikhail Glushenkov [Mon, 22 Nov 2010 17:10:09 +0000 (17:10 +0000)]
llvmc: Make -march/-mcpu/-mtune behaviour more consistent with gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119975
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Duncan Sands [Mon, 22 Nov 2010 16:32:50 +0000 (16:32 +0000)]
If a GEP index simply advances by multiples of a type of zero size,
then replace the index with zero.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119974
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Kalle Raiskila [Mon, 22 Nov 2010 16:28:26 +0000 (16:28 +0000)]
Fix a bug with extractelement on SPU.
In the attached testcase, the element was
never extracted (missing rotate).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119973
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Rafael Espindola [Mon, 22 Nov 2010 14:27:24 +0000 (14:27 +0000)]
Add basic CFI methods to the streamer interface.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119972
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Duncan Sands [Mon, 22 Nov 2010 13:42:49 +0000 (13:42 +0000)]
Move the "gep undef" -> "undef" transform from instcombine to
InstructionSimplify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119970
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Rafael Espindola [Mon, 22 Nov 2010 11:53:17 +0000 (11:53 +0000)]
Remove some #includes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119967
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Benjamin Kramer [Mon, 22 Nov 2010 09:45:38 +0000 (09:45 +0000)]
Implement the "if (X == 6 || X == 4)" -> "if ((X|2) == 6)" optimization.
This currently only catches the most basic case, a two-case switch, but can be
extended later.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119964
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Duncan Sands [Mon, 22 Nov 2010 09:41:24 +0000 (09:41 +0000)]
Don't keep track of inserted phis in PromoteMemoryToRegister: the information
is never used. Patch by Cameron Zwarich.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119963
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Duncan Sands [Mon, 22 Nov 2010 09:38:00 +0000 (09:38 +0000)]
Fix a compiler warning about Kind being used uninitialized
when assertions are disabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119962
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Eric Christopher [Sun, 21 Nov 2010 23:38:19 +0000 (23:38 +0000)]
Pseudos default to 4byte size, let the instruction size field notice
that branch tables are special.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119954
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Wesley Peck [Sun, 21 Nov 2010 22:06:28 +0000 (22:06 +0000)]
Implement ELF object file writing support for the MBlaze backend. Its not perfect yet, but it works for many tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119952
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Wesley Peck [Sun, 21 Nov 2010 21:53:36 +0000 (21:53 +0000)]
Implement branch analysis in the MBlaze backend.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119951
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Wesley Peck [Sun, 21 Nov 2010 21:39:46 +0000 (21:39 +0000)]
Make it a little bit more explicit that the MBlaze backend only supports upto
32-bit immediate values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119950
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Wesley Peck [Sun, 21 Nov 2010 21:36:12 +0000 (21:36 +0000)]
Fix an error in the MBlaze delay slot filler where instructions that already
fill a delay slot are moved to fill a different delay slot.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119949
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Chris Lattner [Sun, 21 Nov 2010 19:05:34 +0000 (19:05 +0000)]
fix comment
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119948
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Chris Lattner [Sun, 21 Nov 2010 18:59:20 +0000 (18:59 +0000)]
apparently tailcalls are better on darwin/x86-64 than on linux?
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119947
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Benjamin Kramer [Sun, 21 Nov 2010 15:21:46 +0000 (15:21 +0000)]
Initialize MemDep's TD member so buildbots don't trip over an uninitialized pointer (TD is passed to PHITransAddr).
I wonder why this didn't explode earlier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119944
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Duncan Sands [Sun, 21 Nov 2010 13:53:09 +0000 (13:53 +0000)]
Add a rather pointless InstructionSimplify transform, inspired by recent constant
folding improvements: if P points to a type of size zero, turn "gep P, N" into "P".
More generally, if a gep index type has size zero, instcombine could replace the
index with zero, but that is not done here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119942
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Duncan Sands [Sun, 21 Nov 2010 12:43:13 +0000 (12:43 +0000)]
Fix spelling.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119941
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Bill Wendling [Sun, 21 Nov 2010 11:49:36 +0000 (11:49 +0000)]
More Thumb encodings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119940
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Bill Wendling [Sun, 21 Nov 2010 11:05:29 +0000 (11:05 +0000)]
Add encoding for ARM "trap" instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119938
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Bill Wendling [Sun, 21 Nov 2010 10:56:05 +0000 (10:56 +0000)]
The "trap" instruction is one of this which doesn't have a condition code. Hack
the code to not add a "condition code" if it's trap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119937
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Bill Wendling [Sun, 21 Nov 2010 10:55:23 +0000 (10:55 +0000)]
- Give "trap" the correct encoding, at least according to Darwin's assembler.
- Add comments saying where the encodings for other instructions came from.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119936
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Chris Lattner [Sun, 21 Nov 2010 08:39:01 +0000 (08:39 +0000)]
apply Dan's fix for PR8268 which allows constant folding to handle indexes over
zero sized elements. This allows us to compile:
#include <string>
void foo() { std::string s; }
into an empty function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119933
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Chris Lattner [Sun, 21 Nov 2010 08:30:55 +0000 (08:30 +0000)]
add some helper methods for asmprinter flags, from PR8417
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119932
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Chris Lattner [Sun, 21 Nov 2010 08:18:57 +0000 (08:18 +0000)]
implement PR8524, apparently mainline gas accepts movq as an alias for movd
when transfering between i64 gprs and mmx regs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119931
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Chris Lattner [Sun, 21 Nov 2010 08:06:10 +0000 (08:06 +0000)]
rework some DSE paths to use the newly-public "getPointerDependencyFrom"
method in MemDep instead of inserting an instruction, doing a query,
then removing it. Neither operation is effectively cached.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119930
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Chris Lattner [Sun, 21 Nov 2010 08:05:25 +0000 (08:05 +0000)]
the getLocationForSource/Dest methods can be static.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119929
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Chris Lattner [Sun, 21 Nov 2010 07:51:27 +0000 (07:51 +0000)]
add "getLocation" method to AliasAnalysis for getting the source and
destination location of a memcpy/memmove. I'm not clear about whether
TBAA works on these, so I'm leaving it out for now. Dan, please revisit
this when convenient.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119928
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Chris Lattner [Sun, 21 Nov 2010 07:34:32 +0000 (07:34 +0000)]
implement PR8576, deleting dead stores with intervening may-alias stores.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119927
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Chris Lattner [Sun, 21 Nov 2010 07:32:40 +0000 (07:32 +0000)]
file checkize
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119926
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Chris Lattner [Sun, 21 Nov 2010 07:05:31 +0000 (07:05 +0000)]
add some random notes.
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Owen Anderson [Sun, 21 Nov 2010 06:47:06 +0000 (06:47 +0000)]
Use by-name rather than by-order operand matching for some NEON encodings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119923
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Chris Lattner [Sun, 21 Nov 2010 06:44:42 +0000 (06:44 +0000)]
optimize:
void a(int x) { if (((1<<x)&8)==0) b(); }
into "x != 3", which occurs over 100 times in 403.gcc but in no
other program in llvm-test.
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Chris Lattner [Sun, 21 Nov 2010 06:10:27 +0000 (06:10 +0000)]
tail calls on x86 are implemented.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119920
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Jim Grosbach [Sun, 21 Nov 2010 01:26:01 +0000 (01:26 +0000)]
BR_JTadd is ARM-only, so use the proper pseudo class to get the predicate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119918
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Rafael Espindola [Sun, 21 Nov 2010 00:48:25 +0000 (00:48 +0000)]
Handle PCRel relocations with absolute values. Fixes PR8656.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119917
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Chris Lattner [Sun, 21 Nov 2010 00:28:59 +0000 (00:28 +0000)]
Implement PR8644: forwarding a memcpy value to a byval,
allowing the memcpy to be eliminated.
Unfortunately, the requirements on byval's without explicit
alignment are really weak and impossible to predict in the
mid-level optimizer, so this doesn't kick in much with current
frontends. The fix is to change clang to set alignment on all
byval arguments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119916
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Chris Lattner [Sat, 20 Nov 2010 23:49:06 +0000 (23:49 +0000)]
a byval argument without an align can have an arbitrary alignment
requirement on the input pointer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119914
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Bill Wendling [Sat, 20 Nov 2010 22:52:33 +0000 (22:52 +0000)]
A few more thumb instruction MC encodings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119913
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Eric Christopher [Sat, 20 Nov 2010 22:38:27 +0000 (22:38 +0000)]
Rewrite address handling to use a structure with all the possible address
mode variables. Handle frame indexes in load/store and allocas again.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119912
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