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23650 Commits

Author SHA1 Message Date
Dan Gohman
e9f33e576d Don't use ISD namespace opcodes for MachineInstrs. 
llvm-svn: 52932
 2008-06-30 22:23:08 +00:00
Dan Gohman
082b08f33a Use a simpler but equivalent form of RecordSource. 
llvm-svn: 52931
 2008-06-30 22:21:03 +00:00
Evan Cheng
3ec3837c38 Add timing report for various sub-passes under SelectionDAGISel. 
llvm-svn: 52930
 2008-06-30 22:10:09 +00:00
Dan Gohman
c8c04b1ff4 std::ostream and std::string microoptimizations for asm printing. 
llvm-svn: 52929
 2008-06-30 22:03:41 +00:00
Dan Gohman
9997cc353f Use reserve. 
SelectionDAG::allnodes_size is linear, but that doesn't appear to
outweigh the benefit of reducing heap traffic. If it does become a
problem, we should teach SelectionDAG to keep a count of how many
nodes are live, because there are several other places where that
information would be useful as well.

llvm-svn: 52926
 2008-06-30 21:04:06 +00:00
Dan Gohman
e58f07e5d6 Update comments to new-style syntax. 
llvm-svn: 52925
 2008-06-30 21:00:56 +00:00
Dan Gohman
6cc648891b Rename ISD::LOCATION to ISD::DBG_STOPPOINT to better reflect its 
purpose, and give it a custom SDNode subclass so that it doesn't
need to have line number, column number, filename string, and
directory string, all existing as individual SDNodes to be the
operands.

This was the only user of ISD::STRING, StringSDNode, etc., so
remove those and some associated code.

This makes stop-points considerably easier to read in
-view-legalize-dags output, and reduces overhead (creating new
nodes and copying std::strings into them) on code containing
debugging information.

llvm-svn: 52924
 2008-06-30 20:59:49 +00:00
Evan Cheng
3f664b6fd3 Split scheduling from instruction selection. 
llvm-svn: 52923
 2008-06-30 20:45:06 +00:00
Dale Johannesen
30d136e2c6 No need to align the stack if there are no stack 
objects.  Fixes a couple of tests on Linux.

llvm-svn: 52921
 2008-06-30 20:40:16 +00:00
Evan Cheng
a83d69e3b9 Remove unneeded include. 
llvm-svn: 52920
 2008-06-30 20:38:22 +00:00
Dan Gohman
295abfe228 Replace some std::vectors that showed up in heap profiling with 
SmallVectors. Change the signature of TargetLowering::LowerArguments
to avoid returning a vector by value, and update the two targets
which still use this directly, Sparc and IA64, accordingly.

llvm-svn: 52917
 2008-06-30 20:31:15 +00:00
Dan Gohman
62c0b69aec Correct the allocation size for CCState's UsedRegs member, which 
only needs one bit for each register. UsedRegs is a SmallVector
sized at 16, so this eliminates a heap allocation/free for every
call and return processed by Legalize on most targets.

llvm-svn: 52915
 2008-06-30 20:25:31 +00:00
Devang Patel
5b8e75e2fe Move dominator info printer into tool/opt/GraphPrinters.cpp 
llvm-svn: 52907
 2008-06-30 17:32:58 +00:00
Duncan Sands
93d7b1b4fa ExpungeNode is only needed for new nodes! This 
fixes CodeGen/PowerPC/2008-06-19-LegalizerCrash.ll
when using the new LegalizeTypes infrastructure.

llvm-svn: 52903
 2008-06-30 16:43:45 +00:00
Duncan Sands
c68385d4b5 Support for VAARG. As noted in a comment, this is 
wrong for types like x86 long double and i1, but
no worse than what is done in LegalizeDAG.

llvm-svn: 52898
 2008-06-30 13:55:15 +00:00
Duncan Sands
a706115957 Support for promoting select_cc operands. 
llvm-svn: 52895
 2008-06-30 11:50:11 +00:00
Duncan Sands
c882a4eba9 Revert the SelectionDAG optimization that makes 
it impossible to create a MERGE_VALUES node with
only one result: sometimes it is useful to be able
to create a node with only one result out of one of
the results of a node with more than one result, for
example because the new node will eventually be used
to replace a one-result node using ReplaceAllUsesWith,
cf X86TargetLowering::ExpandFP_TO_SINT.  On the other
hand, most users of MERGE_VALUES don't need this and
for them the optimization was valuable.  So add a new
utility method getMergeValues for creating MERGE_VALUES
nodes which by default performs the optimization.
Change almost everywhere to use getMergeValues (and
tidy some stuff up at the same time).

llvm-svn: 52893
 2008-06-30 10:19:09 +00:00
Evan Cheng
2005804de6 - Re-apply 52748 and friends with fix. GetConstantStringInfo() returns an empty string for ConstantAggregateZero case which surprises selectiondag. 
- Correctly handle memcpy from constant string which is zero-initialized.

llvm-svn: 52891
 2008-06-30 07:31:25 +00:00
Chris Lattner
95fecdd63a Implement split and scalarize for SELECT_CC, fixing PR2504 
llvm-svn: 52887
 2008-06-30 02:43:01 +00:00
Nick Lewycky
d63159dcd4 Add a value range analysis that lazily computes ranges using ScalarEvolutions. 
llvm-svn: 52885
 2008-06-30 00:04:21 +00:00
Anton Korobeynikov
6f260767ec Revert (52748 and friends): 
Move GetConstantStringInfo to lib/Analysis. Remove
string output routine from Constant. Update all
callers. Change debug intrinsic api slightly to
accomodate move of routine, these now return values
instead of strings.

This unbreaks llvm-gcc bootstrap.

llvm-svn: 52884
 2008-06-29 17:57:03 +00:00
Anton Korobeynikov
9e8c154272 Start refactoring of asmprinters: provide a TAI hook, which will select a 'section kind' for a global. 
llvm-svn: 52868
 2008-06-28 13:45:57 +00:00
Anton Korobeynikov
0b708e559e Unbreak 
llvm-svn: 52866
 2008-06-28 11:10:06 +00:00
Anton Korobeynikov
8562255056 Temporary rever invalid commit 
llvm-svn: 52865
 2008-06-28 11:09:48 +00:00
Anton Korobeynikov
ea88d91267 Move printing of module-level GVs into dedicated helper 
llvm-svn: 52864
 2008-06-28 11:09:32 +00:00
Anton Korobeynikov
77c3528f69 Use common naming convention 
llvm-svn: 52863
 2008-06-28 11:09:17 +00:00
Anton Korobeynikov
2331efee7e Factor out stuff into helper function 
llvm-svn: 52862
 2008-06-28 11:09:01 +00:00
Anton Korobeynikov
908c1fab55 Cleanup 
llvm-svn: 52861
 2008-06-28 11:08:44 +00:00
Anton Korobeynikov
adec555f96 Remove X86SharedAsmPrinter 
llvm-svn: 52860
 2008-06-28 11:08:27 +00:00
Anton Korobeynikov
dcc6a8314a whitespace cleanup 
llvm-svn: 52859
 2008-06-28 11:08:09 +00:00
Anton Korobeynikov
03a62267fe Make intel asmprinter child of generic asmprinter, not x86 shared asm printer. This leads to some code duplication, which will be resolved later. 
llvm-svn: 52858
 2008-06-28 11:07:54 +00:00
Anton Korobeynikov
b75aeb6b1a Cleanup 
llvm-svn: 52857
 2008-06-28 11:07:35 +00:00
Anton Korobeynikov
f4017f7d50 Whitespace cleanup 
llvm-svn: 52856
 2008-06-28 11:07:18 +00:00
Chris Lattner
2deb9ae6ad Really fix the bootstrap failure. 
llvm-svn: 52854
 2008-06-28 06:24:50 +00:00
Chris Lattner
090d81df5e Add back the capability to include nul characters in strings with 
GetConstantStringInfo.  This will hopefully restore llvm-gcc to 
happy bootstrap land.

llvm-svn: 52851
 2008-06-28 05:33:32 +00:00
Chris Lattner
98b286ff98 Tighten up checking. 
llvm-svn: 52850
 2008-06-28 04:37:04 +00:00
Dan Gohman
6b87f869e4 When folding a bitcast into a load or store, preserve the alignment 
information of the original load or store, which is checked to be
at least as good, and possibly better.

llvm-svn: 52849
 2008-06-28 00:45:22 +00:00
Seo Sanghyeon
12944690d5 Fix GetMainExecutable. Patch by Sam Bishop. 
llvm-svn: 52847
 2008-06-27 22:55:30 +00:00
Evan Cheng
36adcb1eea Looks like this condition is inverted. 
llvm-svn: 52841
 2008-06-27 22:11:49 +00:00
Chris Lattner
8e2bd43f29 implement some fixme's by making "autorenaming" in the value symbol table not 
thrash the heap with string stuff (e.g. utostr).

llvm-svn: 52838
 2008-06-27 21:26:26 +00:00
Chris Lattner
5c75711282 simplify some code to avoid string thrashing. 
llvm-svn: 52837
 2008-06-27 21:25:24 +00:00
Anton Korobeynikov
e48fe3dde8 Use StringSet instead of std::set<std::string> 
llvm-svn: 52836
 2008-06-27 21:22:49 +00:00
Chris Lattner
6b3b22747a Add a new version of Module::getFunction that takes a const char* instead 
of a std::string.  This avoids copying the string to the heap in common
cases.  Patch by Pratik Solanki!

llvm-svn: 52834
 2008-06-27 21:09:10 +00:00
Devang Patel
d5faa747e9 Add dominator info printer pass. 
llvm-svn: 52829
 2008-06-27 16:43:21 +00:00
Anton Korobeynikov
eb63554d81 Provide correct encoding for PPC LWARX instructions. 
Patch by Gary Benson!

llvm-svn: 52828
 2008-06-27 16:10:20 +00:00
Bill Wendling
39cc6881e1 Reduce number of times .size() is called on a vector. Rename some variables to 
match normal naming scheme.

llvm-svn: 52820
 2008-06-27 07:13:44 +00:00
Owen Anderson
e0604d46c2 Use a SmallSet when we can to reduce memory allocations. 
This speeds up a particular testcase from 0.0302s to 0.0222s in LiveVariables.

llvm-svn: 52819
 2008-06-27 07:05:59 +00:00
Owen Anderson
59ed35b2c2 Cache subregister relationships in a set in TargetRegisterInfo to allow faster lookups. 
This speeds up LiveVariables from 0.6279s to 0.6165s on kimwitu++.

llvm-svn: 52818
 2008-06-27 06:56:04 +00:00
Chris Lattner
c94b39d65c fix the regressions from Eric's patch by making GetConstantStringInfo 
tolerate a non-nul-terminated string, and handling a direct global 
reference.

llvm-svn: 52813
 2008-06-27 03:36:51 +00:00
Chris Lattner
635da8cff5 simplify this check, GetConstantStringInfo validates that a 
global is constant already.  No functionality change.

llvm-svn: 52812
 2008-06-27 03:18:41 +00:00
Chris Lattner
f40ef5f964 when linking globals, make sure to preserve the address space of the global. 
llvm-svn: 52810
 2008-06-27 03:10:24 +00:00
Bill Wendling
e0ea004d40 Cruft left from patch revert...sorry. :-( 
llvm-svn: 52808
 2008-06-27 01:32:08 +00:00
Bill Wendling
e9909a1c2a Reverting broken patch r52803. 
llvm-svn: 52806
 2008-06-27 01:27:56 +00:00
Owen Anderson
242026fa70 Don't perform expensive queries checking for super and sub registers when we know that there aren't any. 
This speed up LiveVariables on instcombine at -O0 -g from 0.3855s to 0.3503s.  Look for more improvements in this area soon!

llvm-svn: 52804
 2008-06-27 01:22:50 +00:00
Bill Wendling
d0c2026584 - Remove a use of std::vector. 
- Make sure that we're not recalculating the size of a vector
  that never changes.

llvm-svn: 52803
 2008-06-27 00:56:36 +00:00
Bill Wendling
2ab62b9a92 Refactor the DebugInfoDesc stuff out of the MachineModuleInfo file. Clean up 
some uses of std::vector, where it's return std::vector by value. Yuck!

llvm-svn: 52800
 2008-06-27 00:09:40 +00:00
Chris Lattner
85cf534e04 duncan points out that isOperationLegal includes a check for 
type legality.  Thanks Duncan!

llvm-svn: 52786
 2008-06-26 17:16:00 +00:00
Owen Anderson
889d683ee8 Don't create a whole new string just to copy the elements into it. 
llvm-svn: 52785
 2008-06-26 17:06:02 +00:00
Matthijs Kooijman
b1217bdbb0 Make LLVM compile on DragonFly BSD (PR2499). 
Patch by Hasso Tepper!

llvm-svn: 52781
 2008-06-26 10:36:58 +00:00
Bill Wendling
2d9397ea16 Cleanup for unitialized types. Patch by Jean-Daniel Dupas! 
llvm-svn: 52775
 2008-06-26 08:32:05 +00:00
Chris Lattner
d67c47bc62 "An improved Mach-O file type detection for sys::IdentifyFileType() 
This patch add supports for single architecture mach-o files (the current implementation only support Universal Binary), and solve the signature conflict between java class and Universal Binary magics.

Note that this function will always returned dynamic library for Universal Binaries (like the current implementation) because the binary type is not include in the file header."

Patch by Jean-Daniel Dupas!

llvm-svn: 52766
 2008-06-26 05:17:18 +00:00
Owen Anderson
8c36469880 Reserve the size we'll need in advance. 
llvm-svn: 52763
 2008-06-26 04:47:41 +00:00
Dale Johannesen
f170e29cf5 Fixes the last x86-64 test failure in compat.exp: 
<16 x float> is 64-byte aligned (for some reason),
which gets us into the stack realignment code.  The
computation changing FP-relative offsets to SP-relative
was broken, assiging a spill temp to a location
also used for parameter passing.  This
fixes it by rounding up the stack frame to a multiple
of the largest alignment (I concluded it wasn't fixable
without doing this, but I'm not very sure.)

llvm-svn: 52750
 2008-06-26 01:51:13 +00:00
Eric Christopher
155c3679f6 Remove unused function. 
llvm-svn: 52749
 2008-06-26 01:19:35 +00:00
Eric Christopher
4f05c48718 Move GetConstantStringInfo to lib/Analysis. Remove 
string output routine from Constant. Update all
callers. Change debug intrinsic api slightly to
accomodate move of routine, these now return values
instead of strings.

llvm-svn: 52748
 2008-06-26 00:31:12 +00:00
Chris Lattner
2b67ff8632 when we know the signbit of an input to uint_to_fp is zero, 
change it to sint_to_fp on targets where that is cheaper (and
visaversa of course).  This allows us to compile uint_to_fp to:

_test:
	movl	4(%esp), %eax
	shrl	$23, %eax
	cvtsi2ss	%eax, %xmm0
	movl	8(%esp), %eax
	movss	%xmm0, (%eax)
	ret

instead of:

	.align	3
LCPI1_0:					##  double
	.long	0	## double least significant word 4.5036e+15
	.long	1127219200	## double most significant word 4.5036e+15
	.text
	.align	4,0x90
	.globl	_test
_test:
	subl	$12, %esp
	movl	16(%esp), %eax
	shrl	$23, %eax
	movl	%eax, (%esp)
	movl	$1127219200, 4(%esp)
	movsd	(%esp), %xmm0
	subsd	LCPI1_0, %xmm0
	cvtsd2ss	%xmm0, %xmm0
	movl	20(%esp), %eax
	movss	%xmm0, (%eax)
	addl	$12, %esp
	ret

llvm-svn: 52747
 2008-06-26 00:16:49 +00:00
Owen Anderson
68f11ecb86 Remember which MachineOperand we were processing, so we don't have to scan the list to find it again later. 
This speeds up live intervals from 0.37s to 0.30s on instcombine.

llvm-svn: 52745
 2008-06-25 23:39:39 +00:00
Dan Gohman
d1467012f5 Fix the text in an assert string. 
llvm-svn: 52744
 2008-06-25 22:14:43 +00:00
Evan Cheng
71fbfe73c1 - Fix a x86 vector isel bug: illegal transformation of a vector_shuffle into a 
shift.
- Add a readme entry for a missing vector_shuffle optimization that results in
  awful codegen.

llvm-svn: 52740
 2008-06-25 20:52:59 +00:00
Duncan Sands
12c1bee452 Add support for expanding PPC 128 bit floats. 
For this it is convenient to permit floats to
be used with EXTRACT_ELEMENT, so I tweaked
things to allow that.  I also added libcalls
for ppcf128 to i32 forms of FP_TO_XINT, since
they exist in libgcc and this case can certainly
occur (and does occur in the testsuite) - before
the i64 libcall was being used.  Also, the
XINT_TO_FP result seemed to be wrong when
the argument is an i128: the wrong fudge
factor was added (the i32 and i64 cases were
handled directly, but the i128 code fell
through to some generic softening code which
seemed to think it was i64 to f32!).  So I
fixed it by adding a fudge factor that I
found in my breakfast cereal.

llvm-svn: 52739
 2008-06-25 20:24:48 +00:00
Chris Lattner
9c5a1a7da3 Implement JIT support for global aliases, patch by David Chisnall! 
llvm-svn: 52738
 2008-06-25 20:21:35 +00:00
Evan Cheng
5ed0e42cc3 Restore DeadArgElim back to 52570. It's breaking 447.dealII. 
llvm-svn: 52736
 2008-06-25 18:10:09 +00:00
Chris Lattner
ef1aa7c9db Switch the PPC backend and target-independent JIT to use the libsystem 
InvalidateInstructionCache method instead of calling through
a hook on the JIT.  This is a host feature, not a target feature.

llvm-svn: 52734
 2008-06-25 17:18:44 +00:00
Chris Lattner
a42eed01e2 fix compilation errors in my previous patch 
llvm-svn: 52733
 2008-06-25 17:17:53 +00:00
Chris Lattner
24c59453f6 Add a new InvalidateInstructionCache method to sys::Memory. 
llvm-svn: 52731
 2008-06-25 17:14:10 +00:00
Dan Gohman
8205b235b9 SimpleInstructionSelector is here no more. 
llvm-svn: 52725
 2008-06-25 16:38:59 +00:00
Duncan Sands
ab85726912 Add/complete support for integer and float 
select_cc and friends.  This code could be
factorized a bit but I'm not sure that it's
worth it.

llvm-svn: 52724
 2008-06-25 16:34:21 +00:00
Duncan Sands
93aacd5b48 Pacify gcc-4.3. 
llvm-svn: 52723
 2008-06-25 16:31:18 +00:00
Dan Gohman
404964dbc0 Remove the OrigVT member from AtomicSDNode, as it is redundant with 
the base SDNode's VTList.

llvm-svn: 52722
 2008-06-25 16:07:49 +00:00
Mon P Wang
7d89d61387 Added MemOperands to Atomic operations since Atomics touches memory. 
Added abstract class MemSDNode for any Node that have an associated MemOperand
Changed atomic.lcs => atomic.cmp.swap, atomic.las => atomic.load.add, and
atomic.lss => atomic.load.sub

llvm-svn: 52706
 2008-06-25 08:15:39 +00:00
Matthijs Kooijman
45bffc6580 Fix a (false) warning on darwin. 
llvm-svn: 52705
 2008-06-25 08:12:16 +00:00
Matthijs Kooijman
9b78534b71 Fix some cosmetics in comments. 
llvm-svn: 52704
 2008-06-25 08:10:21 +00:00
Evan Cheng
9a3db8fb91 - Use O(1) check of basic block size limit. 
- Avoid speculatively execute vector ops.

llvm-svn: 52703
 2008-06-25 07:50:12 +00:00
Chris Lattner
73b52018e9 Fix PR2488, a case where we deleted stack restores too aggressively. 
llvm-svn: 52702
 2008-06-25 05:59:28 +00:00
Evan Cheng
bab5925a0b Enable two-address remat by default. 
llvm-svn: 52701
 2008-06-25 01:16:38 +00:00
Owen Anderson
968d4e2444 Use push_back rather than operator[], which is incorrect in this cases. Unfortunately, this slow the testcase down a little bit, 
but only marginally.

llvm-svn: 52700
 2008-06-25 01:05:05 +00:00
Dan Gohman
a08868acb3 Append to the ActiveTimers std::vector before looking at the timer instead 
of after, so that any reallocation it does doesn't get counted for the pass
being timed.  This probably doesn't account for a timing discrepancy I was
looking into, but I'm fixing it anyway.

llvm-svn: 52693
 2008-06-24 22:07:07 +00:00
Dale Johannesen
fdf8fe6c03 Add v2f32 (MMX) type to X86. Support is primitive: 
load,store,call,return,bitcast.  This is enough to
make call and return work.

llvm-svn: 52691
 2008-06-24 22:01:44 +00:00
Owen Anderson
673cae8561 In ConstantArray::getAsString(), we know the size of the resultant string in advance so we can pre-allocate it and just fill in 
the entries.  This improves the time for the AsmPrinter on InstructionCombining.cpp from 0.4248s to 0.3370s.

llvm-svn: 52690
 2008-06-24 21:58:29 +00:00
Owen Anderson
8b2f51618a Use SmallVector instead of std::vector for a minor compile time improvement. 
llvm-svn: 52689
 2008-06-24 21:44:59 +00:00
Dan Gohman
b9384c5e87 Revert 52645, the loop unroller changes. It caused a regression in 252.eon. 
llvm-svn: 52688
 2008-06-24 20:44:42 +00:00
Dan Gohman
e9f0a28c64 Fix a typo in a comment. 
llvm-svn: 52687
 2008-06-24 18:00:21 +00:00
Dan Gohman
fcb2dc2dd6 Use const_cast instead of a C-style cast. 
llvm-svn: 52684
 2008-06-24 17:47:37 +00:00
Matthijs Kooijman
ff03ea8aeb Commit the new DeadArgElim pass again, this time with the gcc bootstrap failures fixed. 
Also add a testcase to reproduce the gcc bootstrap failure in very much reduced form.

llvm-svn: 52677
 2008-06-24 16:30:26 +00:00
Matthijs Kooijman
bb456f6b42 Rename a few variables to be more consistent. 
llvm-svn: 52672
 2008-06-24 09:14:10 +00:00
Evan Cheng
a62f5f0f82 If it's determined safe, remat MOV32r0 (i.e. xor r, r) and others as it is instead of using the longer MOV32ri instruction. 
llvm-svn: 52670
 2008-06-24 07:10:51 +00:00
Dan Gohman
29c5903a80 Fix some signed vs. unsigned issues in array and vector handling. 
llvm-svn: 52664
 2008-06-24 01:17:52 +00:00
Dan Gohman
9941a2dab3 Add a note about a potential PIC optimization. 
llvm-svn: 52663
 2008-06-24 00:53:07 +00:00
Dan Gohman
ebc59c90b7 Fixes for being compiled PIC on Linux. This isn't the most 
general solution possible, but it's a fairly simple one.
Based on a patch from the OpenGTL project!

llvm-svn: 52662
 2008-06-24 00:50:01 +00:00
Dan Gohman
0e992740a0 A brief survey of priority_queue usage in the tree turned this up 
as a questionable case, but the code isn't actually needed.

llvm-svn: 52657
 2008-06-23 23:51:16 +00:00