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Author SHA1 Message Date
Daniel Dunbar
06a1d9ddcf Fix a -Wreorder warning. 
llvm-svn: 110022
 2010-08-02 05:43:46 +00:00
Nick Lewycky
747b2ba2b9 Work in progress. 
Start cleaning up MergeFunctions to look more like the rest of LLVM. The
primary change here is to move the methods responsible for comparison into the
new FunctionComparator object. Some comments added. There's more to do.

llvm-svn: 110021
 2010-08-02 05:23:03 +00:00
Eli Friedman
081daa15e1 PR7586: Make sure we don't claim that unknown bits are actually known in the 
ISD::AND case of TargetLowering::SimplifyDemandedBits.

llvm-svn: 110019
 2010-08-02 04:42:25 +00:00
Eli Friedman
40cb7d9994 PR7781: Fix incorrect shifting in PPCTargetLowering::LowerBUILD_VECTOR. 
llvm-svn: 109998
 2010-08-02 00:18:19 +00:00
Eli Friedman
3c5289c381 PR7774: Fix undefined shifts in Alpha backend. As a bonus, this actually 
improves the generated code in some cases.

llvm-svn: 109985
 2010-08-01 21:13:28 +00:00
Benjamin Kramer
1f47ed839d Preallocate vector, avoid unnecessary vector growth. 
llvm-svn: 109971
 2010-08-01 11:43:26 +00:00
Bill Wendling
36376df573 Reference the personalities. Don't copy them into a new vector. 
llvm-svn: 109966
 2010-08-01 01:34:21 +00:00
Daniel Dunbar
e0737ebae3 Silence some -Asserts uninitialized variable warnings. 
llvm-svn: 109956
 2010-07-31 21:08:54 +00:00
Daniel Dunbar
f2be238c99 Speculatively revert r108614, "Another attempt at getting the clang self-host to 
like my instcombine patch.", in an attempt to fix Clang i386 bootstrap.
 - Also PR7719.

llvm-svn: 109953
 2010-07-31 19:51:11 +00:00
Michael J. Spencer
1f89cc1fe5 MC: Remove HasAbsolutizedSet from WindowsX86AsmBackend. 
llvm-svn: 109949
 2010-07-31 07:21:44 +00:00
Bob Wilson
58c8a5da9e Move newlines before inline jumptables from the asm strings in .td files to 
the jtblock_operand print methods.  This avoids extra newlines in the
disassembler's output.  PR7757.

llvm-svn: 109948
 2010-07-31 06:28:10 +00:00
Michael J. Spencer
b52ff1ba41 Add relax all support to the COFF object streamer. 
llvm-svn: 109947
 2010-07-31 06:22:29 +00:00
Bob Wilson
439e7b1d73 Add support for disassembling VMVN (immediate) instructions. PR7747. 
llvm-svn: 109946
 2010-07-31 05:57:44 +00:00
Rafael Espindola
75734bc143 The BlockExtractorPass() constructor was not reading the BlockFile and that was 
exactly what bugpoint expected it to do.

There was also only one user of
BlockExtractorPass(const std::vector<BasicBlock*> &B), so just remove it and
make BlockExtractorPass read BlockFile.

This fixes bugpoint's block extraction.

Nick, please review.

llvm-svn: 109936
 2010-07-31 00:32:17 +00:00
Owen Anderson
e1aed29cca Add an initial implementation of PHI translation for LazyValueInfo. This involves rolling back some 
of my earlier data structure improvements until I can ensure that there are no iterator invalidation problems.

llvm-svn: 109935
 2010-07-30 23:59:40 +00:00
Evan Cheng
ee59acf6dd Add -disable-shifter-op to disable isel of shifter ops. On Cortex-a9 the shifts cost extra instructions so it might be better to emit them separately to take advantage of dual-issues. 
llvm-svn: 109934
 2010-07-30 23:33:54 +00:00
Bob Wilson
6ce71251cc Add a check in the ARM disassembler for NEON instructions that would 
reference registers past the end of the NEON register file, and report them
as invalid instead of asserting when trying to print them.  PR7746.

llvm-svn: 109933
 2010-07-30 23:27:59 +00:00
Dale Johannesen
eb251be031 PPC doesn't supported VLA with large alignment. This was 
formerly rejected by the FE, so asserted in the BE; now the FE only
warns, so we treat it as a legitimate fatal error in PPC BE.
This means the test for the feature won't pass, so it's xfail'd.

llvm-svn: 109892
 2010-07-30 21:09:48 +00:00
Dan Gohman
230d92b375 Move MaximumAlignment to be a member of the Value class. 
llvm-svn: 109891
 2010-07-30 21:07:05 +00:00
Owen Anderson
4e6f48d705 Revert my last two patches to LVI, which recent changes have exposed a miscompilation in. 
llvm-svn: 109889
 2010-07-30 20:56:07 +00:00
Nick Lewycky
b6db4aaeaa Add missing newline to debug statement. 
llvm-svn: 109886
 2010-07-30 20:27:01 +00:00
Bob Wilson
bd1dc153a5 Add the __TEXT,__StaticInit section to the list of sections emitted at the 
beginning on ARM Darwin assembly files so that it won't be placed after
debug sections.  Radar 8252813.

llvm-svn: 109879
 2010-07-30 19:55:47 +00:00
Bruno Cardoso Lopes
0c0dd2173c Support all 128-bit AVX vector intrinsics. Most part of them I already 
declared during the addition of the assembler support, the additional
changes are:
- Add missing intrinsics
- Move all SSE conversion instructions in X86InstInfo64.td to the SSE.td file.
- Duplicate some patterns to AVX mode.
- Step into PCMPEST/PCMPIST custom inserter and add AVX versions.

llvm-svn: 109878
 2010-07-30 19:54:33 +00:00
Bruno Cardoso Lopes
5d4afd0cb9 Fix typo! 
llvm-svn: 109877
 2010-07-30 19:41:24 +00:00
Daniel Dunbar
19ee08da53 MC: Initialize MCFragment::Offset, noticed by Cameron Esfahani. 
llvm-svn: 109875
 2010-07-30 18:32:09 +00:00
Daniel Dunbar
c97e760282 Fix -Wmissing-field-initializers warnings. 
llvm-svn: 109872
 2010-07-30 17:49:04 +00:00
Eli Friedman
bea7c851cf Fix for bug reported by Evzen Muller on llvm-commits: make sure to correctly 
check the range of the constant when optimizing a comparison between a
constant and a sign_extend_inreg node.

llvm-svn: 109854
 2010-07-30 06:44:31 +00:00
Jim Grosbach
1718345a30 Many Thumb2 instructions can reference the full ARM register set (i.e., 
have 4 bits per register in the operand encoding), but have undefined
behavior when the operand value is 13 or 15 (SP and PC, respectively).
The trivial coalescer in linear scan sometimes will merge a copy from
SP into a subsequent instruction which uses the copy, and if that
instruction cannot legally reference SP, we get bad code such as:
  mls r0,r9,r0,sp
instead of:
  mov r2, sp
  mls r0, r9, r0, r2

This patch adds a new register class for use by Thumb2 that excludes
the problematic registers (SP and PC) and is used instead of GPR
for those operands which cannot legally reference PC or SP. The
trivial coalescer explicitly requires that the register class
of the destination for the COPY instruction contain the source
register for the COPY to be considered for coalescing. This prevents
errant instructions like that above.

PR7499

llvm-svn: 109842
 2010-07-30 02:41:01 +00:00
Nate Begeman
0b0f838c32 Add builtins for ssat/usat, similar to RealView's __ssat and __usat intrinsics. 
llvm-svn: 109813
 2010-07-29 22:48:09 +00:00
Bob Wilson
d70ec880ea Refactor ARM-specific DAG combining in preparation for adding some more 
transformations.

llvm-svn: 109800
 2010-07-29 20:34:14 +00:00
Dale Johannesen
717fbb2b32 Implement vector constants which are splat of 
integers with mov + vdup.  8003375.  This is
currently disabled by default because LICM will
not hoist a VDUP, so it pessimizes the code if
the construct occurs inside a loop (8248029).

llvm-svn: 109799
 2010-07-29 20:10:08 +00:00
Bob Wilson
823182c3e5 Don't assert on an unrecognized BrMiscFrm instruction. 
PR7745.

llvm-svn: 109788
 2010-07-29 18:29:28 +00:00
Eli Friedman
642f4c66c3 PR7750: !CExpr->isNullValue() only properly computes whether CExpr is nonnull 
if CExpr is a ConstantInt.

llvm-svn: 109773
 2010-07-29 18:03:33 +00:00
Nate Begeman
b24fa8b8ae Add intrinsics __builtin_arm_qadd & __builtin_arm_qsub to allow access to the QADD & QSUB instructions. 
Behave identically to __qadd & __qsub RealView instruction intrinsics.

llvm-svn: 109770
 2010-07-29 17:56:55 +00:00
Benjamin Kramer
d1340209a1 Plug the remaining MC leaks by giving MCObjectStreamer/MCAsmStreamer ownership of the TargetAsmBackend and the MCCodeEmitter. 
llvm-svn: 109767
 2010-07-29 17:48:06 +00:00
Dale Johannesen
71204e008b Comment typo. 
llvm-svn: 109765
 2010-07-29 17:45:24 +00:00
Jakob Stoklund Olesen
1dee3913d6 Revert r109652, and remove the offending assert in loadRegFromStackSlot instead. 
We do sometimes load from a too small stack slot when dealing with x86 arguments
(varargs and smaller-than-32-bit args). It looks like we know what we are doing
in those cases, so I am going to remove the assert instead of artifically
enlarging stack slot sizes.

The assert in storeRegToStackSlot stays in. We don't want to write beyond the
bounds of a stack slot.

llvm-svn: 109764
 2010-07-29 17:42:27 +00:00
Daniel Dunbar
d516b0a1bd CrashRecovery: Use ThreadLocal::erase() instead of set(0). 
llvm-svn: 109752
 2010-07-29 15:24:21 +00:00
Benjamin Kramer
85d8649a9c Stop leaking std::strings in GetDwarfFile. 
llvm-svn: 109746
 2010-07-29 13:53:19 +00:00
Benjamin Kramer
20e27bc59b COFFObjectWriter: Don't leak COFFSymbols and COFFSections. 
llvm-svn: 109745
 2010-07-29 11:57:59 +00:00
Daniel Dunbar
d62252d9f8 Make sure to include config.h, to pickup LLVM_ON_WIN32. 
llvm-svn: 109721
 2010-07-29 01:52:04 +00:00
Daniel Dunbar
7972ac4c88 MC: Destroy Macro instances. 
llvm-svn: 109720
 2010-07-29 01:51:55 +00:00
Eric Christopher
6a1da7b4a5 Speculatively revert r109705 since it seems to be causing some build bot 
angst.

llvm-svn: 109718
 2010-07-29 01:25:38 +00:00
Daniel Dunbar
a5b23b4df1 CrashRecoveryContext: Add a simple POSIX implementation. 
- This works, but won't handle crashes on stack overflow, or signals delivered
   to a thread other than the one that crashed. The latter is particular annoying
   on Darwin, because SIGABRT tends to go to the main thread.

llvm-svn: 109717
 2010-07-29 01:21:47 +00:00
Jakob Stoklund Olesen
7f337a8e64 Fix a bug in the -regalloc=fast handling of exotic two-address instruction with 
multiple defs, like t2LDRSB_POST.

The first def could accidentally steal the physreg that the second, tied def was
required to be allocated to.

Now, the tied use-def is treated more like an early clobber, and the physreg is
reserved before allocating the other defs.

This would never be a problem when the tied def was the only def which is the
usual case.

This fixes MallocBench/gs for thumb2 -O0.

llvm-svn: 109715
 2010-07-29 00:52:19 +00:00
Dan Gohman
ea1486b53c Factor out some of the code for updating old SCEVUnknown values, and 
extend it to handle the case where multiple RAUWs affect a single
SCEVUnknown.

Add a ScalarEvolution unittest to test for this situation.

llvm-svn: 109705
 2010-07-29 00:17:55 +00:00
Owen Anderson
712152a68e Pass the queried value by argument rather than in a member, in preparation for supporting PHI translation. 
llvm-svn: 109701
 2010-07-28 23:50:08 +00:00
Jim Grosbach
8764c0127d ARM mode version of r109693. Remove incorrect substitution pattern for UXTB16. It wrongly assumed the input shift was actually a rotate. rdar://8240138 
llvm-svn: 109696
 2010-07-28 23:25:44 +00:00
Jim Grosbach
17bec0f609 Remove incorrect substitution pattern for UXTB16. It wrongly assumed the input shift was actually a rotate. rdar://8240138 
llvm-svn: 109693
 2010-07-28 23:17:45 +00:00
Jim Grosbach
03b130774b Remove dead prototype 
llvm-svn: 109691
 2010-07-28 23:16:12 +00:00
Gabor Greif
0899f01287 simplify by using CallSite constructors; virtually eliminates CallSite::get from the tree 
llvm-svn: 109687
 2010-07-28 22:50:26 +00:00
Owen Anderson
8769f9a8dd Add an erase() method to llvm::ThreadLocal. 
llvm-svn: 109686
 2010-07-28 22:49:43 +00:00
Owen Anderson
670fd343a5 Get rid of LVIQuery as a distinct data structure, so that we don't have to initialize a new set of maps on every query. 
llvm-svn: 109679
 2010-07-28 22:07:25 +00:00
Dan Gohman
343e4fb4ea Make GlobalValue alignment consistent with load, store, and alloca 
alignment, fixing silent truncation of alignment values.

llvm-svn: 109653
 2010-07-28 20:56:48 +00:00
Jakob Stoklund Olesen
d4c60eed5e Create a fixed stack object for varargs that is as large as any register. 
The size of this object isn't used for anything - technically it is of variable
size.

This avoids a false positive from the assert in
X86InstrInfo::loadRegFromStackSlot, and fixes PR7735.

llvm-svn: 109652
 2010-07-28 20:55:38 +00:00
Kevin Enderby
3f202e65e8 Added first bit of support for the dwarf .file directive. This patch collects 
the info from the .file directive and makes file and directory tables that
will eventually be put out as part of the dwarf info in the output file.

llvm-svn: 109651
 2010-07-28 20:55:35 +00:00
Daniel Dunbar
111cf008aa RegionInfo: Make sure to free cached nodes; Tobias, please check! 
llvm-svn: 109650
 2010-07-28 20:28:50 +00:00
Daniel Dunbar
1c35389c03 MC: Put back the MCFragment vtable, so subclasses are destroyed properly (duh). 
llvm-svn: 109649
 2010-07-28 20:28:45 +00:00
Dan Gohman
939744be5f Define a maximum supported alignment value for load, store, and 
alloca instructions (constrained by their internal encoding),
and add error checking for it. Fix an instcombine bug which
generated huge alignment values (null is infinitely aligned).
This fixes undefined behavior noticed by John Regehr.

llvm-svn: 109643
 2010-07-28 20:12:04 +00:00
Jakob Stoklund Olesen
7ac201b2e3 Print out the regclass of any virtual registers used by a machine instruction. 
llvm-svn: 109608
 2010-07-28 18:35:46 +00:00
Douglas Gregor
4e0ad2b35b Unbreak my CMake build, say you'll compile for me again... 
llvm-svn: 109598
 2010-07-28 17:17:46 +00:00
Dan Gohman
a4186ab5f0 Fix this code to avoid decrementing an iterator past the beginning 
of a std::vector.

llvm-svn: 109597
 2010-07-28 17:15:36 +00:00
Dan Gohman
5295c21189 When user code intentionally dereferences null, the alignment of the 
dereference is theoretically infinite. Put a cap on the computed
alignment to avoid overflow, noticed by John Regehr.

llvm-svn: 109596
 2010-07-28 17:14:23 +00:00
Dan Gohman
041bd99662 Do GEP offset calculations with unsigned math rather than signed math 
to avoid undefined behavior on overflow, noticed by John Regehr.

llvm-svn: 109594
 2010-07-28 17:11:36 +00:00
Gabor Greif
ecd9b45b05 simplify 
llvm-svn: 109589
 2010-07-28 15:52:43 +00:00
Daniel Dunbar
4cf25fa76a Support: Add CrashRecoveryContext helper object. 
- Designed as a simple wrapper to allow clients to attempt to catch crashes
   (memory errors, assertion violations, etc.) and do some kind of recovery.

 - Currently doesn't actually attempt to catch crashes.

llvm-svn: 109586
 2010-07-28 15:40:20 +00:00
Gabor Greif
4909c0a1f1 simplify 
llvm-svn: 109585
 2010-07-28 15:31:37 +00:00
Gabor Greif
16a98fddef use Value* constructor of CallSite to create potentially improper site, and test that 
llvm-svn: 109581
 2010-07-28 14:28:18 +00:00
Gabor Greif
9bb43864b1 use Value* constructor of CallSite to create potentially improper site, and test that 
llvm-svn: 109580
 2010-07-28 12:35:54 +00:00
Gabor Greif
f6966fafe3 use Value* constructor of CallSite to create potentially improper site 
llvm-svn: 109579
 2010-07-28 12:19:46 +00:00
Gabor Greif
e27a194ce5 simplify 
llvm-svn: 109578
 2010-07-28 10:57:28 +00:00
Gabor Greif
6dc7dec8c1 simplify 
llvm-svn: 109577
 2010-07-28 10:46:09 +00:00
Dan Gohman
2bea1e1572 Make SCEVCallbackVH::allUsesReplacedWith update the old SCEVUnknown 
object, as it may still be referenced by SCEVs not cleaned up by the
use list traversal.

Also, in ScalarEvolution::forgetValue, only check for a SCEVUnknown
object for the original value, not for any value in the use list,
because other SCEVUnknown values aren't necessary obsolete at that
point.

llvm-svn: 109570
 2010-07-28 01:09:07 +00:00
Dan Gohman
9a6ea54d94 Make SCEVCallbackVH::allUsesReplacedWith unconditionally delete 
the old value.

llvm-svn: 109567
 2010-07-28 00:28:25 +00:00
Nate Begeman
133820e806 Implement a vectorized algorithm for <16 x i8> << <16 x i8> 
This is about 4x faster and smaller than the existing scalarization.

llvm-svn: 109566
 2010-07-28 00:21:48 +00:00
Owen Anderson
2d39891e91 Rearrange several datastructures in LazyValueInfo to improve compile time. 
This is still not perfect, but better than it was before.

llvm-svn: 109563
 2010-07-27 23:58:11 +00:00
Gabor Greif
ec0c7b2427 reintroduce original (asserting) semantics of CallSite(Instruction *II) 
add instead a CallSite(Value* V) constructor that is consistent with ImmutableCallSize
and use that one in client code

llvm-svn: 109553
 2010-07-27 22:53:28 +00:00
Nate Begeman
068e932975 ~40% faster vector shl <4 x i32> on SSE 4.1 Larger improvements for smaller types coming in future patches. 
For:

define <2 x i64> @shl(<4 x i32> %r, <4 x i32> %a) nounwind readnone ssp {
entry:
  %shl = shl <4 x i32> %r, %a                     ; <<4 x i32>> [#uses=1]
  %tmp2 = bitcast <4 x i32> %shl to <2 x i64>     ; <<2 x i64>> [#uses=1]
  ret <2 x i64> %tmp2
}

We get:

_shl:                                   ## @shl
	pslld	$23, %xmm1
	paddd	LCPI0_0, %xmm1
	cvttps2dq	%xmm1, %xmm1
	pmulld	%xmm1, %xmm0
	ret

Instead of:

_shl:                                   ## @shl
	pshufd	$3, %xmm0, %xmm2
	movd	%xmm2, %eax
	pshufd	$3, %xmm1, %xmm2
	movd	%xmm2, %ecx
	shll	%cl, %eax
	movd	%eax, %xmm2
	pshufd	$1, %xmm0, %xmm3
	movd	%xmm3, %eax
	pshufd	$1, %xmm1, %xmm3
	movd	%xmm3, %ecx
	shll	%cl, %eax
	movd	%eax, %xmm3
	punpckldq	%xmm2, %xmm3
	movd	%xmm0, %eax
	movd	%xmm1, %ecx
	shll	%cl, %eax
	movd	%eax, %xmm2
	movhlps	%xmm0, %xmm0
	movd	%xmm0, %eax
	movhlps	%xmm1, %xmm1
	movd	%xmm1, %ecx
	shll	%cl, %eax
	movd	%eax, %xmm0
	punpckldq	%xmm0, %xmm2
	movdqa	%xmm2, %xmm0
	punpckldq	%xmm3, %xmm0
	ret

llvm-svn: 109549
 2010-07-27 22:37:06 +00:00
Gabor Greif
8c197e5dbb recommit simplification (originally r109504, backed out in r109508) now that problem in CallSiteBase is fixed 
llvm-svn: 109547
 2010-07-27 22:02:00 +00:00
Devang Patel
38a7221118 It is FE's responsibility to emit proper directory name. 
llvm-svn: 109538
 2010-07-27 20:51:15 +00:00
Jim Grosbach
2f4adcee5f Grammar 
llvm-svn: 109525
 2010-07-27 18:36:27 +00:00
Nate Begeman
15fe179ecb Fix a crash in the dag combiner caused by ConstantFoldBIT_CONVERTofBUILD_VECTOR calling itself 
recursively and returning a SCALAR_TO_VECTOR node, but assuming the input was always a BUILD_VECTOR.

llvm-svn: 109519
 2010-07-27 18:02:18 +00:00
Jim Grosbach
4d81e796cb 80 column 
llvm-svn: 109513
 2010-07-27 17:38:47 +00:00
Jim Grosbach
7e561eb81c fix typo 
llvm-svn: 109511
 2010-07-27 17:14:29 +00:00
Gabor Greif
2778a21978 recommit simplification (r109502, backed out r109509); seems to innocent 
llvm-svn: 109510
 2010-07-27 16:44:23 +00:00
Gabor Greif
c95e84ab61 back out this too to restore the bots 
llvm-svn: 109509
 2010-07-27 15:56:07 +00:00
Gabor Greif
981f3d3a31 back out r109504, breaks the bots 
llvm-svn: 109508
 2010-07-27 15:18:11 +00:00
Gabor Greif
394841cea8 simplify: CallSite::get --> CallSite constructor 
llvm-svn: 109506
 2010-07-27 15:02:37 +00:00
Gabor Greif
90a627cfaa simplify 
llvm-svn: 109504
 2010-07-27 14:38:38 +00:00
Gabor Greif
aaf68e2e5a use ImmutableCallSite for const-corrgoodness 
llvm-svn: 109503
 2010-07-27 14:15:29 +00:00
Gabor Greif
ee90e05139 simplify 
llvm-svn: 109502
 2010-07-27 13:31:22 +00:00
Mikhail Glushenkov
61338a536b Fix silent failure with no input files. 
llvm-svn: 109500
 2010-07-27 11:19:40 +00:00
Mikhail Glushenkov
33c561c22c Return -1 only on failure to execute a program. 
Also fix some comments.

llvm-svn: 109499
 2010-07-27 11:19:36 +00:00
Tobias Grosser
ebc6c0cf50 RegionInfo: Add getMaxRegionExit() 
getMaxRegionExit returns the exit of the maximal refined region starting
at a specific basic block.

llvm-svn: 109496
 2010-07-27 08:39:43 +00:00
Duncan Sands
816457c7f3 After updating value handles for RAUW, check that no weak or tracking handles 
are still on the list.  This might happen if a CallbackVH created some new value
handles for the old value when doing RAUW.  Barf if it occurs, since it is almost
certainly a mistake.

llvm-svn: 109495
 2010-07-27 06:53:14 +00:00
Michael J. Spencer
33ac353ce4 Make MC use Windows COFF on Windows and add tests. 
llvm-svn: 109494
 2010-07-27 06:46:15 +00:00
Tobias Grosser
16789d79fe Add function to query RegionInfo about loops. 
* contains(Loop), * getOutermostLoop()
* Improve getNameStr() to return a sensible name, if basic blocks are not named.

llvm-svn: 109490
 2010-07-27 04:17:13 +00:00
Jakob Stoklund Olesen
b056152ccf The isLoadFromStackSlot and isStoreToStackSlot have no way of reporting 
subregister operands like this:

%reg1040:sub_32bit<def> = MOV32rm <fi#-2>, 1, %reg0, 0, %reg0, %reg1040<imp-def>; mem:LD4[FixedStack-2](align=8)

Make them return false when subreg operands are present. VirtRegRewriter is
making bad assumptions otherwise.

This fixes PR7713.

llvm-svn: 109489
 2010-07-27 04:17:01 +00:00
Jakob Stoklund Olesen
fa4bcde9d9 Add assertions that expose the PR7713 miscompilation: Accessing a stack slot 
with a too-big register class.

llvm-svn: 109488
 2010-07-27 04:16:58 +00:00
Bill Wendling
bb2398331b It's better to have the arrays, which would trigger the creation of stack 
protectors, to be near the stack protectors on the stack. Accomplish this by
tagging the stack object with a predicate that indicates that it would trigger
this. In the prolog-epilog inserter, assign these objects to the stack after the
stack protector but before the other objects.

llvm-svn: 109481
 2010-07-27 01:55:19 +00:00
Jakob Stoklund Olesen
2b379c4339 Add SplitEditor to SplitKit. This class will be used to edit live intervals and 
rewrite instructions for live range splitting.

Still work in progress.

llvm-svn: 109469
 2010-07-26 23:44:11 +00:00
Dan Gohman
64157c1919 Fix a use-after-free. 
llvm-svn: 109468
 2010-07-26 23:40:24 +00:00
Bill Wendling
efed27734e Using llvm.eh.catch.all.value instead of .llvm.eh.catch.all.value. 
llvm-svn: 109462
 2010-07-26 22:36:52 +00:00
Eli Friedman
94c9f00dd6 And a bit more non-ASCII stuff. 
llvm-svn: 109458
 2010-07-26 22:28:18 +00:00
Anton Korobeynikov
b71ee4ebbb Drop some non-ascii stuff 
llvm-svn: 109456
 2010-07-26 22:23:07 +00:00
Bob Wilson
73936af25b Don't call __register_frame from the JIT on systems that use setjmp/longjmp 
exception handling.  Also fix an extra underscore typo in one instance of
"__ARM_EABI__".  Radar 8236264.

llvm-svn: 109451
 2010-07-26 21:58:00 +00:00
Evan Cheng
4cee8136a7 On x86, f32 / f64 nodes share the same registers as 128-bit vector values. 
llvm-svn: 109450
 2010-07-26 21:50:05 +00:00
Evan Cheng
e5f7eaf10c The "excess register pressure" returned by HighRegPressure() is not accurate enough to factor into scheduling priority. Eliminate it and add early exits to speed up scheduling. 
llvm-svn: 109449
 2010-07-26 21:49:07 +00:00
Anton Korobeynikov
5e1e95aed9 Add a note 
llvm-svn: 109448
 2010-07-26 21:48:35 +00:00
Bruno Cardoso Lopes
cb0f921ca4 Temporary hack to let codegen assert or generate poor code in case 
we are using AVX and no AVX version of the desired intruction is present,
this is better for incremental dev (without fallbacks it's easier to spot
what's missing). Not sure this is the best hack thought (we can also disable
all HasSSE* predicates by dinamically marking them 'false' if AVX is present)

llvm-svn: 109434
 2010-07-26 21:01:18 +00:00
Owen Anderson
12ab6162bf Add an initial implementation of LazyValueInfo updating for JumpThreading. Disabled for now. 
llvm-svn: 109424
 2010-07-26 18:48:03 +00:00
Anton Korobeynikov
5e3d50ec58 Currently EH lowering code expects typeinfo to be global only. 
This assumption is not satisfied due to global mergeing.
Workaround the issue by temporary disablinge mergeing of const globals.
Also, ignore LLVM "special" globals. This fixes PR7716

llvm-svn: 109423
 2010-07-26 18:45:39 +00:00
Evan Cheng
1566171daa ARM fastisel isn't ready. 
llvm-svn: 109421
 2010-07-26 18:32:55 +00:00
Dan Gohman
9e0ae022d2 Fix SCEVExpander::visitAddRecExpr so that it remembers the induction variable 
it inserted rather than using LoopInfo::getCanonicalInductionVariable to
rediscover it, since that doesn't work on non-canonical loops. This fixes
infinite recurrsion on such loops; PR7562.

llvm-svn: 109419
 2010-07-26 18:28:14 +00:00
Dan Gohman
52e662a7f7 Handle Values with no value in getCopyFromRegs. 
llvm-svn: 109415
 2010-07-26 18:15:41 +00:00
Dan Gohman
23a6a1bdc5 Remove LCSSA's bogus dependence on LoopSimplify and LoopSimplify's bogus 
dependence on DominanceFrontier. Instead, add an explicit DominanceFrontier
pass in StandardPasses.h to ensure that it gets scheduled at the right
time.

Declare that loop unrolling preserves ScalarEvolution, and shuffle some
getAnalysisUsages.

This eliminates one LoopSimplify and one LCCSA run in the standard
compile opts sequence.

llvm-svn: 109413
 2010-07-26 18:11:16 +00:00
Dan Gohman
7d588b7dec Preserve ScalarEvolution in the loop unroller. 
llvm-svn: 109412
 2010-07-26 18:02:06 +00:00
Dan Gohman
e191a19b69 Fix (at least) quadratic worst-case complexity in DominanceFrontier::splitBlock: 
don't visit all blocks in the function, and don't iterate over the split blocks'
predecessor lists for each block visited.

Also, remove the special-case test for the entry block. Splitting the entry
block isn't common enough to make this worthwhile.

This fixes a major compile-time bottleneck which is exposed now that
LoopSimplify isn't being redundantly run both before and after
DominanceFrontier.

llvm-svn: 109408
 2010-07-26 17:55:15 +00:00
Dan Gohman
c90f474e23 Avoid copying and recopying a std::set. 
llvm-svn: 109405
 2010-07-26 17:45:33 +00:00
Dan Gohman
8babd895c7 Exit a search loop when the search goal is found. 
llvm-svn: 109404
 2010-07-26 17:41:45 +00:00
Dan Gohman
014eec6389 Fix formatting. 
llvm-svn: 109403
 2010-07-26 17:39:33 +00:00
Dan Gohman
8f7e88352a A block dominates itself, by definition. 
llvm-svn: 109402
 2010-07-26 17:38:15 +00:00
Dan Gohman
32010a6c96 Use DominatorTree::properlyDominates instead of dominates with an 
explicit inequality check.

llvm-svn: 109401
 2010-07-26 17:37:36 +00:00
Dan Gohman
bed2730c5b A block dominates itself, by definition. 
llvm-svn: 109400
 2010-07-26 17:35:32 +00:00
Dan Gohman
0627594a67 Use DominatorTree::properlyDominates instead of dominates with an 
explicit inequality check.

llvm-svn: 109398
 2010-07-26 17:34:05 +00:00
Duncan Sands
0f0329ea35 Pacify gcc-4.5 which wrongly thinks that RExcess (passed as the Excess parameter) 
may be used uninitialized in the callers of HighRegPressure.

llvm-svn: 109393
 2010-07-26 07:54:17 +00:00
Douglas Gregor
8f3e666150 Fix format-specifier warning 
llvm-svn: 109391
 2010-07-26 03:55:44 +00:00
Michael J. Spencer
d061ee82ad MC: Fix whitespace error from last commit. 
A Visual C++ extension that removes trailing new lines? Seriously?

llvm-svn: 109390
 2010-07-26 03:01:28 +00:00
Michael J. Spencer
9d96c92bde MC: Add WinCOFFObjectWriter implementation. 
Origonal Windows COFF implementation by Nathan Jedffords.

llvm-svn: 109389
 2010-07-26 02:17:32 +00:00
Lang Hames
998b522009 Factored out a bit of common code to mark VNInfos for deletion. 
llvm-svn: 109388
 2010-07-26 01:49:41 +00:00
Benjamin Kramer
0f8f1bd5a1 Reduce string trashing. 
llvm-svn: 109386
 2010-07-25 23:18:32 +00:00
Evan Cheng
94e820829a Add comments. 
llvm-svn: 109383
 2010-07-25 18:59:43 +00:00
Douglas Gregor
caa8768635 Remove extraneous semicolon 
llvm-svn: 109373
 2010-07-25 17:34:42 +00:00
Douglas Gregor
dc72ace097 Unbreak CMake build 
llvm-svn: 109372
 2010-07-25 17:10:14 +00:00
Bob Wilson
4f9b0d9fad Fix crashes when scheduling a CopyToReg node -- getMachineOpcode asserts on 
those.  Radar 8231572.

llvm-svn: 109367
 2010-07-25 05:34:27 +00:00
Eli Friedman
07a7e448b3 Revert r109361; it's impossible to write a call with an argument with an 
invalid type.

llvm-svn: 109365
 2010-07-24 23:06:59 +00:00
Eli Friedman
cd361b852b Minor simplification. 
llvm-svn: 109362
 2010-07-24 23:00:59 +00:00
Eli Friedman
124f0f9120 Make the ll parser check that arguments have valid types. 
llvm-svn: 109361
 2010-07-24 23:00:26 +00:00
Eli Friedman
6769a5186d PR7704: A function is not allowed to return a function; make sure to enforce 
this consistently.

llvm-svn: 109360
 2010-07-24 22:58:04 +00:00
Anton Korobeynikov
7ae895e007 Hook in GlobalMerge pass 
llvm-svn: 109359
 2010-07-24 21:52:08 +00:00
Nick Lewycky
8cbc57da86 Revert this because we can't clone cyclic MDNodes which are creating during a 
build of llvm-gcc.

llvm-svn: 109355
 2010-07-24 20:54:02 +00:00
Anton Korobeynikov
2a0715eb1b Add hook to insert late LLVM=>LLVM passes just before isel 
llvm-svn: 109354
 2010-07-24 20:48:54 +00:00
Nick Lewycky
7094bd27bc Whether function-local or not, a MDNode may reference a Function in which case 
it needs to be mapped to refer to the function in the new module, not the old
one. Fixes PR7700.

llvm-svn: 109353
 2010-07-24 19:43:25 +00:00
Duncan Sands
5128cb3743 Clarify that if a new value handle is added while dropping value handles 
hanging off a value, then the dropping code will intentionally not drop
it too (since this is almost certainly a bug).

llvm-svn: 109337
 2010-07-24 12:09:22 +00:00
Bob Wilson
59114a12b8 Change ScheduleDAGInstrs::Defs and ::Uses to be variable-size vectors 
instead of fixed size arrays, so that increasing FirstVirtualRegister to 16K
won't cause a compile time performance regression.

llvm-svn: 109330
 2010-07-24 06:01:53 +00:00
Devang Patel
df9f5bf991 Use current working directory when Dirname is empty. This only happens when absolute source file path is used on compiler command line. 
llvm-svn: 109302
 2010-07-24 00:53:22 +00:00
Evan Cheng
a0b74d8804 Add an ILP scheduler. This is a register pressure aware scheduler that's 
appropriate for targets without detailed instruction iterineries.
The scheduler schedules for increased instruction level parallelism in
low register pressure situation; it schedules to reduce register pressure
when the register pressure becomes high.

On x86_64, this is a win for all tests in CFP2000. It also sped up 256.bzip2
by 16%.

llvm-svn: 109300
 2010-07-24 00:39:05 +00:00
Bruno Cardoso Lopes
632295a03c Support x86 "eiz" and "riz" pseudo index registers in the assembler. 
llvm-svn: 109295
 2010-07-24 00:06:39 +00:00
Jim Grosbach
4b7545413d Use the appropriate register class for an i32 when adding ARM::LR to the 
function live in set. This will give us tGPR for Thumb1 and GPR otherwise,
so the copy will be spillable. rdar://8224931

llvm-svn: 109293
 2010-07-23 23:50:35 +00:00
Jim Grosbach
30d0fca117 Remove too-strict assertion. We may want the vreg copy of the physical register 
to be of a different register class. For example, in Thumb1 if the live-in is
a high register, we want the vreg to be a low register. rdar://8224931

llvm-svn: 109291
 2010-07-23 23:48:02 +00:00
Devang Patel
7049c83125 Revert r109262. 
llvm-svn: 109285
 2010-07-23 23:04:41 +00:00
Dale Johannesen
50d2bc2942 Revert 109076. It is wrong and was causing regressions. Add some 
comments explaining why it was wrong.  8225024.

Fix the real problem in 8213383: the code that splits very large
blocks when no other place to put constants can be found was not
considering the case that the block contained a Thumb tablejump.

llvm-svn: 109282
 2010-07-23 22:50:23 +00:00
Evan Cheng
f215e55d5f - Allow target to specify when is register pressure "too high". In most cases, 
it's too late to start backing off aggressive latency scheduling when most
  of the registers are in use so the threshold should be a bit tighter.
- Correctly handle live out's and extract_subreg etc.
- Enable register pressure aware scheduling by default for hybrid scheduler.
  For ARM, this is almost always a win on # of instructions. It's runtime
  neutral for most of the tests. But for some kernels with high register
  pressure it can be a huge win. e.g. 464.h264ref reduced number of spills by
  54 and sped up by 20%.

llvm-svn: 109279
 2010-07-23 22:39:59 +00:00
Bruno Cardoso Lopes
06fcdd6563 Remove trailing whitespace 
llvm-svn: 109276
 2010-07-23 22:15:26 +00:00
Dan Gohman
e6e38c1685 Eliminate getCanonicalInductionVariableIncrement's last user and 
eliminate it.

llvm-svn: 109270
 2010-07-23 21:34:51 +00:00
Dan Gohman
1d19d69faf Simplify this code; it can use the regular CFG utlities rather than 
the BlockTraits abstractions.

llvm-svn: 109268
 2010-07-23 21:25:16 +00:00
Dan Gohman
188a4d7d53 Micro-optimize SCEVComplexityCompare. 
llvm-svn: 109267
 2010-07-23 21:20:52 +00:00
Dan Gohman
2de2b0713e Add a const qualifier. 
llvm-svn: 109266
 2010-07-23 21:18:55 +00:00
Dan Gohman
1694c4352a Use the proper type for shift counts. This fixes a bootstrap error. 
llvm-svn: 109265
 2010-07-23 21:08:12 +00:00
Devang Patel
01d5937192 IF directory name is empty then try to extract one using absolute file name. 
llvm-svn: 109262
 2010-07-23 20:36:13 +00:00
Bruno Cardoso Lopes
a80b57e5fc Add AVX version of CLMUL instructions 
llvm-svn: 109248
 2010-07-23 18:41:12 +00:00
Dan Gohman
8859ab786b DAGCombine (shl (anyext x, c)) to (anyext (shl x, c)) if the high bits 
are not demanded. This often allows the anyext to be folded away.

llvm-svn: 109242
 2010-07-23 18:03:30 +00:00
Dan Gohman
b5a26419b8 Make SDNode::dump() print a newline at the end. 
llvm-svn: 109234
 2010-07-23 16:37:47 +00:00
Gabor Greif
30f8e2112c fix constness warnings 
llvm-svn: 109224
 2010-07-23 13:28:47 +00:00
Gabor Greif
a04ffe0391 do not (implicitly) dereference iterator many times, cache it instead 
llvm-svn: 109222
 2010-07-23 10:23:01 +00:00
Mikhail Glushenkov
bbe02846de Formatting. 
llvm-svn: 109216
 2010-07-23 04:19:34 +00:00
Mikhail Glushenkov
bbeb485c74 Get rid of exceptions in llvmc. 
llvmc can be now compiled with llvm-gcc on Windows.

llvm-svn: 109215
 2010-07-23 03:42:55 +00:00
Bruno Cardoso Lopes
b5374c4b69 Declare CLMUL as a subtarget feature 
llvm-svn: 109207
 2010-07-23 01:22:45 +00:00
Bruno Cardoso Lopes
b034ffa291 Add x86 CLMUL (Carry-less multiplication) cpu feature 
llvm-svn: 109206
 2010-07-23 01:17:51 +00:00
Eric Christopher
308237108d 80-col. 
llvm-svn: 109205
 2010-07-23 01:05:59 +00:00
Bruno Cardoso Lopes
b9182e3051 Add complete assembler support for FMA3 instructions, with descriptions and encodings taken from the AVX manual 
llvm-svn: 109204
 2010-07-23 00:54:35 +00:00
Dale Johannesen
1ee436f417 The only supported calling convention for X86-64 uses 
SSE, so we can't return floating point values if this
is disabled.  Detect this error for clang.

With SSE1 only, f64 is a problem; it can be done, but
neither llvm-gcc nor clang has ever generated correct
code for it.  Since nobody noticed this I think it's
OK to treat it as an error for now.

This also handles SSE-sized vectors of floating point.
8207686, 8204109.

llvm-svn: 109201
 2010-07-23 00:30:35 +00:00
Bruno Cardoso Lopes
93fd8bdf6a Fix some AVX instructions which didnt had HasAVX prefix. And also a problem with PINSRW, which was totally wrong because of a typo I introduced previously 
llvm-svn: 109198
 2010-07-23 00:14:54 +00:00
Chris Lattner
a1dcdf0bd4 eliminate the TargetInstrInfo::GetInstSizeInBytes hook. 
ARM/PPC/MSP430-specific code (which are the only targets that
implement the hook) can directly reference their target-specific
instrinfo classes.

llvm-svn: 109171
 2010-07-22 21:27:00 +00:00
Chris Lattner
7c16f1a16e remove the dwarf sizing stuff which is now dead, it was 
"yet another" copy of the dwarf EH emission code that was
copied, pasted and slightly hacked up.

llvm-svn: 109169
 2010-07-22 21:20:39 +00:00
Bruno Cardoso Lopes
7722724eee Add remaining AVX instructions (most of them dealing with GR64 destinations. This complete the assembler support for the general AVX ISA. But we still miss instructions from FMA3 and CLMUL specific feature flags, which are now the next step 
llvm-svn: 109168
 2010-07-22 21:18:49 +00:00
Chris Lattner
65ad913bec remove the JIT "NeedsExactSize" feature and supporting logic. 
llvm-svn: 109167
 2010-07-22 21:17:55 +00:00
Chris Lattner
9c30949ae1 switch a private implementation of GetFunctionSizeInBytes. 
This is probably not the best way to implement "Force LR to 
be spilled if the Thumb function size is > 2048." do this, 
it should use the branch shortening infrastructure, but I'm
just preserving functionality here.

llvm-svn: 109165
 2010-07-22 21:14:33 +00:00
Chris Lattner
7704d56b21 X86MCInstLower now depends on AsmPrinter being around. 
llvm-svn: 109154
 2010-07-22 21:10:04 +00:00
Chris Lattner
367aa754b1 instead of migrating it to the MC instruction encoder, just 
rip out the implementation of X86InstrInfo::GetInstSizeInBytes.
The code being ripped out just implemented a copy and hacked up
version of the (old) instruction encoder, and is buggy and 
terrible in other ways.  Since "GetInstSizeInBytes" is really 
only there to support the JIT's "NeedsExactSize" hook (which
noone is using), just rip out the code.  I will rip out the
NeedsExactSize hook next.

This resolves rdar://7617809 - switch X86InstrInfo::GetInstSizeInBytes to use X86MCCodeEmitter

llvm-svn: 109149
 2010-07-22 21:05:13 +00:00
Devang Patel
f53de95e64 Speculatively revert 109117 
llvm-svn: 109132
 2010-07-22 18:44:00 +00:00
Xerxes Ranby
c7a04bcaa5 ARMv4 JIT forgets to set the lr register when making a indirect function call. Fixes PR7608 
llvm-svn: 109125
 2010-07-22 17:28:34 +00:00
Gabor Greif
feb96f2df2 keep in 80 cols 
llvm-svn: 109122
 2010-07-22 17:18:03 +00:00
Devang Patel
58b7143697 Map MDNode correctly. 
A non function local MDNode can have an operand which is cloned by MapValue(). 

llvm-svn: 109117
 2010-07-22 16:35:00 +00:00
Gabor Greif
346b13120a use cascading operator-> feature 
llvm-svn: 109104
 2010-07-22 13:49:27 +00:00
Gabor Greif
96a9f8c7c6 mass elimination of reliance on automatic iterator dereferencing 
llvm-svn: 109103
 2010-07-22 13:36:47 +00:00
Gabor Greif
225d763b90 simplify 
llvm-svn: 109101
 2010-07-22 13:07:39 +00:00
Gabor Greif
40e372be7e do not access arguments via low-level interface, do not multiply dereference use_iterators 
llvm-svn: 109100
 2010-07-22 13:04:32 +00:00
Gabor Greif
582eb39c11 pass dereferenced iterator to dyn_cast 
llvm-svn: 109099
 2010-07-22 11:48:35 +00:00
Gabor Greif
87ef691878 pass dereferenced iterator to dyn_cast 
llvm-svn: 109098
 2010-07-22 11:43:44 +00:00
Gabor Greif
197322c365 use -> instead of (*). 
llvm-svn: 109094
 2010-07-22 11:12:32 +00:00
Gabor Greif
e826ece8c2 cache dereferenced iterator 
llvm-svn: 109093
 2010-07-22 11:07:46 +00:00
Gabor Greif
a7509fca78 undo 80 column trespassing I caused 
llvm-svn: 109092
 2010-07-22 10:37:47 +00:00
Chandler Carruth
e10953d673 Mark an assert-only variable as used. 
llvm-svn: 109091
 2010-07-22 08:02:25 +00:00
Chandler Carruth
4810e179e9 Fix the generated file name for CMake. 
llvm-svn: 109090
 2010-07-22 08:00:52 +00:00
Tobias Grosser
604a50cd71 Add new RegionInfo pass. 
The RegionInfo pass detects single entry single exit regions in a function,
where a region is defined as any subgraph that is connected to the remaining
graph at only two spots.
Furthermore an hierarchical region tree is built.
Use it by calling "opt -regions analyze" or "opt -view-regions".

llvm-svn: 109089
 2010-07-22 07:46:31 +00:00
Chandler Carruth
66edf31b8e Attempt to fix linking issues with CMake. Please review other CMake users, 
especially on other platforms. Is there a better way to fix this.

llvm-svn: 109084
 2010-07-22 06:27:45 +00:00
Evan Cheng
c47b23ef06 Re-apply r109079 with fix. 
llvm-svn: 109083
 2010-07-22 06:24:48 +00:00
Owen Anderson
2553a4be1a Revert r109079, which broke a lot of CodeGen tests. 
llvm-svn: 109082
 2010-07-22 06:01:28 +00:00
Owen Anderson
01e73ac583 Update CMake files. 
llvm-svn: 109081
 2010-07-22 06:00:01 +00:00
Reid Kleckner
3a876ca187 Initial modifications to MCAssembler and TargetMachine for the MCJIT. 
Patch by Olivier Meurant!

llvm-svn: 109080
 2010-07-22 05:58:53 +00:00
Evan Cheng
f1ca10c69f Initialize RegLimit only when register pressure is being tracked. 
llvm-svn: 109079
 2010-07-22 05:18:41 +00:00
Eric Christopher
4924d5fb93 Custom lower the memory barrier instructions and add support 
for lowering without sse2.  Add a couple of new testcases.

Fixes a few libgomp tests and latent bugs.  Remove a few todos.

llvm-svn: 109078
 2010-07-22 02:48:34 +00:00
Evan Cheng
32f6aba7d8 Fix constant island pass's handling of tBR_JTr. The offset of the instruction does not have to be 4-byte aligned. Rather, it's the offset + 2 that must be aligned since the instruction expands into: 
mov     pc, r1
        .align  2
LJTI0_0_0:
        .long    LBB0_14

This fixes rdar://8213383. No test case since it's not possible to come up with a suitable small one.

llvm-svn: 109076
 2010-07-22 02:09:47 +00:00
Eric Christopher
5901214b6a 80-columns. 
llvm-svn: 109070
 2010-07-22 00:26:08 +00:00
Nate Begeman
c50bef0df7 Make fast isel win64-aware w.r.t. call-clobbered regs 
llvm-svn: 109069
 2010-07-22 00:09:39 +00:00
Evan Cheng
5aa6a25102 More register pressure aware scheduling work. 
llvm-svn: 109064
 2010-07-21 23:53:58 +00:00
Bruno Cardoso Lopes
5920e38cd2 Add more 256-bit forms for a bunch of regular AVX instructions 
Add 64-bit (GR64) versions of some instructions (which are not
described in their SSE forms, but are described in AVX)

llvm-svn: 109063
 2010-07-21 23:53:50 +00:00
Dan Gohman
859ffd353e Make NamedMDNode not be a subclass of Value, and simplify the interface 
for creating and populating NamedMDNodes.

llvm-svn: 109061
 2010-07-21 23:38:33 +00:00
Rafael Espindola
c8342b43c4 Fixes win64. It was broken by a previous patch where I missed the !isWin64 
and then forced every register to be a vr128 on win64.

llvm-svn: 109060
 2010-07-21 23:19:57 +00:00
Owen Anderson
b36d01c1b6 Add INSTANTIATE_AG_PASS, which combines RegisterPass<> with RegisterAnalysisGroup<> for pass registration. 
llvm-svn: 109058
 2010-07-21 23:07:00 +00:00
Jim Grosbach
489d758ea8 For ARM/Darwin, add a dwarf entry indicating whether a function is arm or thumb 
rdar://8202967

llvm-svn: 109057
 2010-07-21 23:03:52 +00:00
Chris Lattner
418c190d93 add some rough support for making mcinst lowering work without an 
asmprinter or mangler around.  This is option #B for killing off 
X86InstrInfo::GetInstSizeInBytes.  Option #A (killing 
"needsexactsize") was sent for consideration to llvmdev.

llvm-svn: 109056
 2010-07-21 23:03:35 +00:00
Eric Christopher
3d118d5e8a Baby steps towards ARM fast-isel. 
llvm-svn: 109047
 2010-07-21 22:26:11 +00:00
Owen Anderson
f8addbb0a1 Fix batch of converting RegisterPass<> to INTIALIZE_PASS(). 
llvm-svn: 109045
 2010-07-21 22:09:45 +00:00
Bruno Cardoso Lopes
eea3b7ed83 Add missing AVX convert instructions. Those instructions are not described in their SSE forms (although they exist), but add the AVX forms anyway, so the assembler can benefit from it 
llvm-svn: 109039
 2010-07-21 21:37:59 +00:00
Jim Grosbach
4d3c808fd9 tidy up. 
llvm-svn: 109038
 2010-07-21 21:36:25 +00:00
Jim Grosbach
6b4f9f4c14 80 column and trailing whitespace cleanup 
llvm-svn: 109037
 2010-07-21 21:21:52 +00:00
Dan Gohman
bb800aa2f7 Add some debug output to help diagnose PR7689. 
llvm-svn: 109036
 2010-07-21 21:18:37 +00:00
Nate Begeman
e7ca21ab3b Fix a couple issues with Win64 ABI 
1) all registers were spilled as xmm, regardless of actual size
2) win64 abi doesn't do the varargs-size-in-%al thing

Still to look into:

xmm6-15 are marked as clobbered by call instructions on win64 even though they aren't.

llvm-svn: 109035
 2010-07-21 20:49:52 +00:00
Bruno Cardoso Lopes
1284fdc932 Avoid AVX instructions to be selected instead of its SSE form 
llvm-svn: 109032
 2010-07-21 20:38:42 +00:00
Dan Gohman
f4c6f5cc46 NamedMDNode is never an operand. 
llvm-svn: 109031
 2010-07-21 20:25:43 +00:00
Dan Gohman
fc3ee085a0 Disallow null as a named metadata operand. 
Make MDNode::destroy private.
Fix the one thing that used MDNode::destroy, outside of MDNode itself.

One should never delete or destroy an MDNode explicitly. MDNodes
implicitly go away when there are no references to them (implementation
details aside).

llvm-svn: 109028
 2010-07-21 18:54:18 +00:00
Dan Gohman
b0db34a612 Use TrackingVH instead of WeakVH for NamedMDNode's operands, since nodes 
referenced by NamedMDNodes shouldn't be deleted.

llvm-svn: 109021
 2010-07-21 18:01:42 +00:00
Dan Gohman
328a6ebeae Tidy. 
llvm-svn: 109020
 2010-07-21 17:53:53 +00:00
Owen Anderson
f26c7a852f Move the smarts of AnalysisGroup registration into PassRegistry. 
llvm-svn: 109019
 2010-07-21 17:52:45 +00:00
Rafael Espindola
9aab8413b8 Fix calling convention on ARM if vfp2+ is enabled. 
llvm-svn: 109009
 2010-07-21 11:38:30 +00:00
Eric Christopher
959481ec87 Pulling out previous patch, must've run the tests in 
the wrong directory.

llvm-svn: 109005
 2010-07-21 09:23:56 +00:00
Eric Christopher
5c12ad2a4b Lower MEMBARRIER on x86 and support processors without SSE2. 
Fixes a pile of libgomp failures in the llvm-gcc testsuite due
to the libcall not existing.

llvm-svn: 109004
 2010-07-21 09:05:23 +00:00
Lang Hames
26319a802c Changed OStream templates to functions on raw_ostream, removed the unused "renderWarnings" function. 
llvm-svn: 109003
 2010-07-21 09:02:06 +00:00
Bruno Cardoso Lopes
d13d8c2562 Add AVX only vzeroall and vzeroupper instructions 
llvm-svn: 109002
 2010-07-21 08:56:24 +00:00
Evan Cheng
df725c25dd Teach bottom up pre-ra scheduler to track register pressure. Work in progress. 
llvm-svn: 108991
 2010-07-21 06:09:07 +00:00
Bruno Cardoso Lopes
c4d93a5a34 Add new AVX vpermilps, vpermilpd and vperm2f128 instructions 
llvm-svn: 108984
 2010-07-21 03:07:42 +00:00
Bruno Cardoso Lopes
a7efb29695 Add new AVX vmaskmov instructions, and also fix the VEX encoding bits to support it 
llvm-svn: 108983
 2010-07-21 02:46:58 +00:00
Dan Gohman
09326457a8 Give MDNode printing has access to the current Module in more 
cases. This will be needed when function-local metadata can
appear in places that aren't intrinsic function arguments.

llvm-svn: 108971
 2010-07-20 23:55:01 +00:00
Jakob Stoklund Olesen
2e78d6ed2e Change the createSpiller interface to take a MachineFunctionPass argument. 
The spillers can pluck the analyses they need from the pass reference.

Switch some never-null pointers to references.

llvm-svn: 108969
 2010-07-20 23:50:15 +00:00
Dan Gohman
a07df2e2bf Make this code a little more readable. 
llvm-svn: 108968
 2010-07-20 23:49:44 +00:00
Dan Gohman
6f009c4a42 Use DebugLocs instead of MDNodes. 
llvm-svn: 108967
 2010-07-20 23:49:05 +00:00
Owen Anderson
6265d52037 Move the handling of PassRegistrationListener's to PassRegistry. 
llvm-svn: 108966
 2010-07-20 23:41:56 +00:00
Bruno Cardoso Lopes
e0dce1c741 Add new AVX vextractf128 instructions 
llvm-svn: 108964
 2010-07-20 23:19:02 +00:00
Dan Gohman
c813346166 Fix a typo. 
llvm-svn: 108962
 2010-07-20 23:10:36 +00:00
Dan Gohman
66ae369e76 Don't look up the "dbg" metadata kind by name. 
llvm-svn: 108961
 2010-07-20 23:09:34 +00:00
Chris Lattner
fa1479a813 make asmprinter optional, even though passing in null will cause things to explode right now. 
llvm-svn: 108955
 2010-07-20 22:45:33 +00:00
Chris Lattner
535d070a96 continue pushing dependencies around. 
llvm-svn: 108952
 2010-07-20 22:35:40 +00:00
Chris Lattner
607e343ee1 reduce X86MCInstLower dependencies on asmprinter. 
llvm-svn: 108950
 2010-07-20 22:30:53 +00:00
Chris Lattner
2c7b47d3bf pass around MF, not MMI. 
llvm-svn: 108949
 2010-07-20 22:26:07 +00:00
Dan Gohman
71724e8c7a Rename removeAllMetadata to clearMetadataHashEntries and simplify 
it to just do the things that need to be done when an instruction
is deleted.

llvm-svn: 108948
 2010-07-20 22:25:04 +00:00
Chris Lattner
5834a54ac3 cleanups. 
llvm-svn: 108947
 2010-07-20 22:23:57 +00:00
Chris Lattner
cbca96b513 move two asmprinter methods into the asmprinter .cpp file. 
llvm-svn: 108945
 2010-07-20 22:18:19 +00:00
Jakob Stoklund Olesen
dcf78c06f8 Implement loop splitting analysis. 
Determine which loop exit blocks need a 'pre-exit' block inserted.
Recognize when this would be impossible.

llvm-svn: 108941
 2010-07-20 21:46:58 +00:00