Commit Graph

57316 Commits

Author SHA1 Message Date
Chris Lattner c837209b81 comment fix.
llvm-svn: 96248
2010-02-15 18:55:04 +00:00
David Greene 63cedef74b Add support for emitting non-temporal stores for DAGs marked
non-temporal.

llvm-svn: 96241
2010-02-15 17:02:56 +00:00
David Greene 39c6d01879 Add non-temporal flags and remove an assumption of default arguments.
llvm-svn: 96240
2010-02-15 17:00:31 +00:00
David Greene cbd39c5def Remove an assumption of default arguments. This is in anticipation of a
change to SelectionDAG build APIs.

llvm-svn: 96239
2010-02-15 16:57:43 +00:00
David Greene 15478ac350 Remove an assumption of default arguments. This is in anticipation of a
change to SelectionDAG build APIs.

llvm-svn: 96238
2010-02-15 16:57:13 +00:00
David Greene 772fc34209 Remove an assumption of default arguments. This is in anticipation of a
change to SelectionDAG build APIs.

llvm-svn: 96237
2010-02-15 16:57:02 +00:00
David Greene 87a5abea33 Remove an assumption of default arguments. This is in anticipation of a
change to SelectionDAG build APIs.

llvm-svn: 96236
2010-02-15 16:56:53 +00:00
David Greene 2138b0fc90 Remove an assumption of default arguments. This is in anticipation of a
change to SelectionDAG build APIs.

llvm-svn: 96235
2010-02-15 16:56:34 +00:00
David Greene 27d044d65d Remove an assumption of default arguments. This is in anticipation of a
change to SelectionDAG build APIs.

llvm-svn: 96234
2010-02-15 16:56:22 +00:00
David Greene 3cd87cc5ee Remove an assumption of default arguments. This is in anticipation of a
change to SelectionDAG build APIs.

llvm-svn: 96233
2010-02-15 16:56:10 +00:00
David Greene cfa68983e8 Remove an assumption of default arguments. This is in anticipation of a
change to SelectionDAG build APIs.

llvm-svn: 96232
2010-02-15 16:55:58 +00:00
David Greene af2931d7bf Remove an assumption of default arguments. This is in anticipation of a
change to SelectionDAG build APIs.

llvm-svn: 96231
2010-02-15 16:55:37 +00:00
David Greene 0d0149f5ac Remove an assumption of default arguments. This is in anticipation of a
change to SelectionDAG build APIs.

llvm-svn: 96230
2010-02-15 16:55:24 +00:00
David Greene e2e2073303 Remove an assumption of default arguments. This is in anticipation of a
change to SelectionDAG build APIs.

llvm-svn: 96229
2010-02-15 16:55:07 +00:00
David Greene ff34702b04 Remove an assumption of default arguments. This is in anticipation of a
change to SelectionDAG build APIs.

llvm-svn: 96228
2010-02-15 16:53:33 +00:00
David Greene 68ea4da8cb Remove an assumption of default arguments. This is in anticipation of a
change to SelectionDAG build APIs.

llvm-svn: 96227
2010-02-15 16:49:52 +00:00
David Greene 3a0412f122 Add non-temporal flags to MachineMemOperand.
llvm-svn: 96226
2010-02-15 16:48:31 +00:00
Duncan Sands 9dff9bec31 Uniformize the names of type predicates: rather than having isFloatTy and
isInteger, we now have isFloatTy and isIntegerTy.  Requested by Chris!

llvm-svn: 96223
2010-02-15 16:12:20 +00:00
Oscar Fuentes 37b3c48ef7 CMake: Fixed syntax in conditional.
llvm-svn: 96221
2010-02-15 15:17:05 +00:00
Andrew Lenharth 6b5e62fb0b Fix changes from r75027
llvm-svn: 96220
2010-02-15 15:00:44 +00:00
Dan Gohman fefbff9cd8 When testing whether a given SCEV depends on a temporary symbolic
name, test whether the SCEV itself is that temporary symbolic name,
in addition to checking whether the symbolic name appears as a
possibly-indirect operand.

llvm-svn: 96216
2010-02-15 10:28:37 +00:00
Chris Lattner b02cdaaa9c Check in the first big step of rewriting DAGISelEmitter to
produce a table based matcher instead of gobs of C++ Code.

Though it's not done yet, the shrinkage seems promising,
the table for the X86 ISel is 75K and still has a lot of 
optimization to come (compare to the ~1.5M of .o generated
the old way, much of which will go away).

The code is currently disabled by default (the #if 0 in
DAGISelEmitter.cpp).  When enabled it generates a dead
SelectCode2 function in the DAGISel Header which will
eventually replace SelectCode.

There is still a lot of stuff left to do, which are
documented with a trail of FIXMEs.

llvm-svn: 96215
2010-02-15 08:04:42 +00:00
Chris Lattner 8fd1fe1612 give SDValue an operator->, allowing V->isTargetOpcode() and
many other natural things.

llvm-svn: 96214
2010-02-15 07:11:34 +00:00
Chris Lattner f0520da7a1 don't make insanely large node numbers for no reason,
packing somewhat densely is better than not.

llvm-svn: 96213
2010-02-15 06:39:31 +00:00
Chris Lattner d4df64d15f no need to add the instruction count anymore.
llvm-svn: 96212
2010-02-15 06:38:41 +00:00
Mikhail Glushenkov 5352f07f2c Revert r96130 ("Forward parameter options as '-option=param'").
This behaviour must be configurable.

llvm-svn: 96210
2010-02-15 03:17:06 +00:00
Chris Lattner 115158fa4f enhance raw_svector_ostream::write_impl to work with unbuffered streams,
which may call write_impl on things that are not the usual buffer.

llvm-svn: 96209
2010-02-15 02:18:26 +00:00
Chris Lattner f733d75892 make PadToColumn return the stream so you can use:
OS.PadToColumn(42) << "foo";

llvm-svn: 96208
2010-02-15 02:17:50 +00:00
Dale Johannesen c704ea1c51 Ignore DBG_VALUE in a couple more places.
llvm-svn: 96207
2010-02-15 01:45:47 +00:00
Dan Gohman 4d8feb11dd When restoring a saved insert location, check to see if the saved
insert location has become an "inserted" instruction since the time
it was saved. If so, advance to the first non-"inserted" instruction.

llvm-svn: 96203
2010-02-15 00:21:43 +00:00
Chris Lattner 450d50467c constize
llvm-svn: 96199
2010-02-14 22:33:49 +00:00
Chris Lattner 53c39ba3c1 clean up a bunch of code, move some random predicates
on TreePatternNode to be methods on TreePatternNode.

llvm-svn: 96197
2010-02-14 22:22:58 +00:00
Chris Lattner 4aa57ba3ef mark "addr" as having type "iPTR", eliminating some type comparisons
in hte generated dag isel fil.

llvm-svn: 96193
2010-02-14 21:53:19 +00:00
Chris Lattner b3d9942c51 remove the DisablePatternForFastISel predicate, which is a check
that predated -fast-isel which attempted to speed up the dag pattern
matchers at -O0.  Since fast-isel is around, this is basically 
obsolete and removing it shrinks the generated dag isels.

llvm-svn: 96188
2010-02-14 21:11:53 +00:00
Chris Lattner dd2ec58276 add an insertion operator.
llvm-svn: 96187
2010-02-14 21:10:33 +00:00
Chris Lattner 78291e3be8 tidy up
llvm-svn: 96186
2010-02-14 21:10:15 +00:00
Dan Gohman e4e51a63da Fix whitespace.
llvm-svn: 96179
2010-02-14 18:51:39 +00:00
Dan Gohman e7f74bb16c Fix a comment.
llvm-svn: 96178
2010-02-14 18:51:20 +00:00
Dan Gohman bb7d52213c When complicated expressions are broken down into subexpressions
with multiplication by constants distributed through, occasionally
those subexpressions can include both x and -x. For now, if this
condition is discovered within LSR, just prune such cases away,
as they won't be profitable. This fixes a "zero allocated in a
base register" assertion failure.

llvm-svn: 96177
2010-02-14 18:50:49 +00:00
Sanjiv Gupta d6cbe9f23f fixes to pagesel/banksel inserter.
1. restore these across direct/indirect calls.
2. restore pagesel for any macros with gotos.

llvm-svn: 96175
2010-02-14 18:27:42 +00:00
Anton Korobeynikov 0a5e0371b0 Forgot to commit the header
llvm-svn: 96174
2010-02-14 18:25:41 +00:00
Chris Lattner 3b38fd6488 follow-on to PR6280
llvm-svn: 96172
2010-02-14 18:20:09 +00:00
Anton Korobeynikov ce77ce3072 Drop winmcasminfo and use normal AT&T COFF for all windows targets.
Otherwise AT&T asm printer is used with non-compatible MCAsmInfo and
there is no way to override this behaviour.

llvm-svn: 96165
2010-02-14 15:19:54 +00:00
Johnny Chen c95a814ec3 Try to factorize the specification of saturating add/subtract operations a bit,
as suggested by Bob Wilson.

llvm-svn: 96153
2010-02-14 06:32:20 +00:00
Dan Gohman 2d0f96d49a Actually, this code doesn't have to be quite so conservative in
the no-TLI case. But it should still default to declining the
transformation.

llvm-svn: 96152
2010-02-14 03:21:49 +00:00
Dan Gohman 6b7517342e In rememberInstruction, if the value being remembered is the
current insertion point, advance the current insertion point.
This avoids a use-before-def situation in a testcase extracted
from clang which is difficult to reduce to a reasonable-sized
regression test.

llvm-svn: 96151
2010-02-14 03:12:47 +00:00
Dan Gohman f446713fd0 Simplify this code; no need for a custom subclass if it doesn't need
to override anything from the parent class.

llvm-svn: 96150
2010-02-14 02:48:58 +00:00
Dan Gohman 6fafffb635 Remove a 'protected' keyword, now that SCEVExpander is no longer
intended to be subclassed.

llvm-svn: 96149
2010-02-14 02:47:26 +00:00
Dan Gohman cb76a806f0 Don't attempt aggressive post-inc uses if TargetLowering is not available,
because profitability can't be sufficiently approximated.

llvm-svn: 96148
2010-02-14 02:45:21 +00:00
Daniel Dunbar 3e255dae88 2.7: Note that DataTypes.h moved.
llvm-svn: 96143
2010-02-14 01:47:19 +00:00
John McCall 0daaf13b97 Make LSR not crash if invoked without target lowering info, e.g. if invoked
from opt.

llvm-svn: 96135
2010-02-13 23:40:16 +00:00
Eric Christopher 843a4cc43c Fix a problem where we had bitcasted operands that gave us
odd offsets since the bitcasted pointer size and the offset pointer
size are going to be different types for the GEP vs base object.

llvm-svn: 96134
2010-02-13 23:38:01 +00:00
Mikhail Glushenkov 32fa169648 Forward parameter options as '-option=parameter'.
Some tools do not like the '-option parameter' form. Should this be
configurable?

llvm-svn: 96130
2010-02-13 22:37:28 +00:00
Mikhail Glushenkov bbbf4977c7 Support some more Darwin-only options.
We really need a conditional compilation mechanism...

llvm-svn: 96129
2010-02-13 22:37:13 +00:00
Mikhail Glushenkov b0afb6cbe4 Support -mfix-and-continue properly.
llvm-svn: 96128
2010-02-13 22:37:00 +00:00
Mikhail Glushenkov 67f061d85c Revert r94752, turns out we don't need to touch these options.
llvm-svn: 96127
2010-02-13 22:36:43 +00:00
Daniel Dunbar 299beb8c0f Trim trailing spaces (aka, trigger rebuild).
llvm-svn: 96126
2010-02-13 22:23:47 +00:00
Chris Lattner 3dc137d8ed pull a bunch of huge inline methods in the PatternCodeEmitter
class out of line.

llvm-svn: 96113
2010-02-13 20:06:50 +00:00
Chris Lattner 406cd61828 teach the encoder to handle pseudo instructions like FP_REG_KILL,
encoding them into nothing.

llvm-svn: 96110
2010-02-13 19:16:53 +00:00
Chris Lattner b8639bc2d1 remove dead code.
llvm-svn: 96109
2010-02-13 19:07:06 +00:00
Daniel Dunbar 8408c126c1 MCAssembler: Fix pcrel relocations. Oh and,
--
ddunbar@ozzy:tmp$ clang -m32 -integrated-as hello.c && ./a.out
hello world!
--

llvm-svn: 96096
2010-02-13 09:45:59 +00:00
Daniel Dunbar 1e2fad3de8 MC/Mach-O: Start emitting fixups/relocations for instructions.
llvm-svn: 96095
2010-02-13 09:29:02 +00:00
Daniel Dunbar 3374835b46 MCAssembler: Switch MCAsmFixup to storing MCFixupKind instead of just a size.
llvm-svn: 96094
2010-02-13 09:28:54 +00:00
Daniel Dunbar 97867a9cfc MCAssembler: Sink fixup list into MCDataFragment.
llvm-svn: 96093
2010-02-13 09:28:43 +00:00
Daniel Dunbar 056bc60336 MCAssembler: Switch MCFillFragment to only taking constant values. Symbolic expressions can always be emitted as data + fixups.
llvm-svn: 96092
2010-02-13 09:28:32 +00:00
Daniel Dunbar 1a1fbb50fc MC/Mach-O: Implement EmitValue using data fragments + fixups instead of fill fragment.
llvm-svn: 96091
2010-02-13 09:28:22 +00:00
Daniel Dunbar 8e53203154 MCAssembler: Start applying fixups in the data section.
llvm-svn: 96090
2010-02-13 09:28:15 +00:00
Daniel Dunbar bedf1d4a41 MCAssembler: Add assorted dump() methods.
llvm-svn: 96089
2010-02-13 09:28:03 +00:00
Daniel Dunbar 2610a34b15 X86: Move extended MCFixupKinds into X86FixupKinds.h
llvm-svn: 96088
2010-02-13 09:27:52 +00:00
Chris Lattner 42c66b7270 Split some code out to a helper function (FindReusablePredBB)
and add a doxygen comment.

Cache the phi entry to avoid doing tons of 
PHINode::getBasicBlockIndex calls in the common case.

On my insane testcase from re2c, this speeds up CGP from
617.4s to 7.9s (78x).

llvm-svn: 96083
2010-02-13 05:35:08 +00:00
Chris Lattner 5e7f705934 Speed up codegen prepare from 3.58s to 0.488s.
llvm-svn: 96081
2010-02-13 05:01:14 +00:00
Chris Lattner 72c4dce884 PHINode::getBasicBlockIndex is O(n) in the number of inputs
to a PHI, avoid it in the common case where the BB occurs
in the same index for multiple phis.  This speeds up CGP on
an insane testcase from 8.35 to 3.58s.

llvm-svn: 96080
2010-02-13 04:24:19 +00:00
Chris Lattner b0ebb65ab0 iterate over preds using PHI information when available instead of
using pred_begin/end.  It is much faster.

llvm-svn: 96079
2010-02-13 04:15:26 +00:00
Chris Lattner 96b8826542 speed up CGP a bit by scanning predecessors through phi operands
instead of with pred_begin/end.

llvm-svn: 96078
2010-02-13 04:04:42 +00:00
Chris Lattner f83726f6ba add encoder support and tests for rdtscp
llvm-svn: 96076
2010-02-13 03:42:24 +00:00
Johnny Chen 52a6ab3ba7 Add SETEND and BXJ instructions for disassembly only.
llvm-svn: 96075
2010-02-13 02:51:09 +00:00
Sean Callanan 4d804d794f Added the rdtscp instruction to the x86 instruction
tables.

llvm-svn: 96073
2010-02-13 02:06:11 +00:00
Jakob Stoklund Olesen b659c76c77 Fix PR6283.
When coalescing with a physreg, remember to add imp-def and imp-kill when
dealing with sub-registers.

Also fix a related bug in VirtRegRewriter where substitutePhysReg may
reallocate the operand list on an instruction and invalidate the reg_iterator.
This can happen when a register is mentioned twice on the same instruction.

llvm-svn: 96072
2010-02-13 02:06:10 +00:00
Dan Gohman 5b18f039eb Fix a pruning heuristic which implicitly assumed that SmallPtrSet is
deterministically sorted.

llvm-svn: 96071
2010-02-13 02:06:02 +00:00
Evan Cheng 3b065cdb64 Teach MachineFrameInfo to track maximum alignment while stack objects are being
created. This ensures it's updated at all time. It means targets which perform
dynamic stack alignment would know whether it is required and whether frame
pointer register cannot be made available register allocation.
This is a fix for rdar://7625239. Sorry, I can't create a reasonably sized test
case.

llvm-svn: 96069
2010-02-13 01:56:41 +00:00
Jakob Stoklund Olesen 492b8b42cd Enable the inlinehint attribute in the Inliner.
Functions explicitly marked inline will get an inlining threshold slightly
more aggressive than the default for -O3. This means than -O3 builds are
mostly unaffected while -Os builds will be a bit bigger and faster.

The difference depends entirely on how many 'inline's are sprinkled on the
source.

In the CINT2006 suite, only these tests are significantly affected under -Os:

               Size   Time
471.omnetpp   +1.63% -1.85%
473.astar     +4.01% -6.02%
483.xalancbmk +4.60%  0.00%

Note that 483.xalancbmk runs too quickly to give useful timing results.

llvm-svn: 96066
2010-02-13 01:51:53 +00:00
Sean Callanan 44232af55a Fixed encodings for invlpg, invept, and invvpid.
llvm-svn: 96065
2010-02-13 01:48:34 +00:00
Daniel Dunbar d0c6d361fe MC/AsmParser: Attempt to constant fold expressions up-front. This ensures we avoid fixups for obvious cases like '-(16)'.
llvm-svn: 96064
2010-02-13 01:28:07 +00:00
Johnny Chen b0208d2a06 Added a bunch of saturating add/subtract instructions for disassembly only.
llvm-svn: 96063
2010-02-13 01:21:01 +00:00
Chris Lattner 509154e0f9 rip out the 'heinous' x86 MCCodeEmitter implementation.
We still have the templated X86 JIT emitter, *and* the
almost-copy in X86InstrInfo for getting instruction sizes.

llvm-svn: 96059
2010-02-13 00:49:29 +00:00
Chris Lattner 140caa7240 remove special cases for vmlaunch, vmresume, vmxoff, and swapgs
fix swapgs to be spelled right.

llvm-svn: 96058
2010-02-13 00:41:14 +00:00
Bob Wilson 01abf8fc2f Besides removing phi cycles that reduce to a single value, also remove dead
phi cycles.  Adjust a few tests to keep dead instructions from being optimized
away.  This (together with my previous change for phi cycles) fixes Apple
radar 7627077.

llvm-svn: 96057
2010-02-13 00:31:44 +00:00
Dan Gohman fe873e7c10 Override dominates and properlyDominates for SCEVAddRecExpr, as a
SCEVAddRecExpr doesn't necessarily dominate blocks merely dominated
by all of its operands. This fixes an abort compiling 403.gcc.

llvm-svn: 96056
2010-02-13 00:19:39 +00:00
Daniel Dunbar 224340cabe MC/X86: Push immediate operands as immediates not expressions when possible.
llvm-svn: 96055
2010-02-13 00:17:21 +00:00
Jeffrey Yasskin 01f88a96c5 Make PassRegistrar thread-safe since it can be modified by code running in
separate LLVMContexts.

llvm-svn: 96051
2010-02-13 00:03:17 +00:00
Chris Lattner 064e926362 Remove special cases for [LM]FENCE, MONITOR and MWAIT from
encoder and decoder by using new MRM_ forms.

llvm-svn: 96048
2010-02-12 23:54:57 +00:00
Chris Lattner 34749d879d add some disassemble testcases for weird instructions
llvm-svn: 96045
2010-02-12 23:46:48 +00:00
Sean Callanan dde9c12307 Reworked the Intel disassembler to support instructions
whose opcodes extend into the ModR/M field using the
Form field of the instruction rather than by special
casing each instruction.  Commented out the special
casing of VMCALL, which is the first instruction to use
this special form.  While I was in the neighborhood,
added a few comments for people modifying the Intel
disassembler. 

llvm-svn: 96043
2010-02-12 23:39:46 +00:00
Chris Lattner 1e827fd8ca implement the rest of correct x86-64 encoder support for
rip-relative addresses, and add a testcase.

llvm-svn: 96040
2010-02-12 23:24:09 +00:00
Dale Johannesen 626b79d6a6 Add the problem I just hacked around in 96015/96020.
The solution there produces correct code, but is seriously
deficient in several ways.

llvm-svn: 96039
2010-02-12 23:16:24 +00:00
Chris Lattner 741580a5bd give MCCodeEmitters access to the current MCContext.
llvm-svn: 96038
2010-02-12 23:12:47 +00:00
Jeffrey Yasskin 2d36eb6e18 Make JIT::runFunction clean up the generated stub function.
Patch by Shivram K!

llvm-svn: 96037
2010-02-12 23:05:31 +00:00
Chris Lattner 4ad96055fb implement infrastructure to support fixups for rip-rel
addressing.  This isn't complete because I need an MCContext
to generate new MCExprs.

llvm-svn: 96036
2010-02-12 23:00:36 +00:00
Johnny Chen 29a9103ee6 Add YIELD, WFE, WFI, and SEV instructions for disassembly only.
Plus add two formats: MiscFrm and ThumbMiscFrm.  Some of the for disassembly
only instructions are changed from Pseudo Format to MiscFrm Format.

llvm-svn: 96032
2010-02-12 22:53:19 +00:00
Chris Lattner d18320361f pull the rip-relative addressing mode case up early.
llvm-svn: 96031
2010-02-12 22:47:55 +00:00