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Commit Graph

2031 Commits

Author SHA1 Message Date
Chris Lattner
9d38dfa4a5 Move a bunch more accessors from TargetInstrInfo to TargetInstrDescriptor
llvm-svn: 45680
2008-01-07 03:13:06 +00:00
Chris Lattner
96d0a93f8e remove some uses of MachineOpCode, move getSchedClass
into TargetInstrDescriptor from TargetInstrInfo.

llvm-svn: 45678
2008-01-07 02:46:03 +00:00
Chris Lattner
93e1e6ee12 Add predicates methods to TargetOperandInfo, and switch all clients
over to using them, instead of diddling Flags directly.  Change the
various flags from const variables to enums.

llvm-svn: 45677
2008-01-07 02:39:19 +00:00
Chris Lattner
f7f96d818f Rename MachineInstr::getInstrDescriptor -> getDesc(), which reflects
that it is cheap and efficient to get.

Move a variety of predicates from TargetInstrInfo into 
TargetInstrDescriptor, which makes it much easier to query a predicate
when you don't have TII around.  Now you can use MI->getDesc()->isBranch()
instead of going through TII, and this is much more efficient anyway. Not
all of the predicates have been moved over yet.

Update old code that used MI->getInstrDescriptor()->Flags to use the
new predicates in many places.

llvm-svn: 45674
2008-01-07 01:56:04 +00:00
Owen Anderson
2e866e9cdf Update CodeGen for MRegisterInfo --> TargetInstrInfo changes.
llvm-svn: 45673
2008-01-07 01:35:56 +00:00
Gordon Henriksen
88a41c672b Enabling the target-independent garbage collection infrastructure by hooking it
up to the various compiler pipelines.

This doesn't actually add support for any GC algorithms, which means it 
temporarily breaks a few tests. To be fixed shortly.

llvm-svn: 45669
2008-01-07 01:30:38 +00:00
Nate Begeman
a6e9de35ae If custom lowering of insert element fails, the result Val will be 0.
Don't overwrite a variable used by the fallthrough code path in this
case.

llvm-svn: 45630
2008-01-05 20:47:37 +00:00
Duncan Sands
8a4882564a Fix PR1833 - eh.exception and eh.selector return two
values, which means doing extra legalization work.
It would be easier to get this kind of thing right if
there was some documentation...

llvm-svn: 45472
2007-12-31 18:35:50 +00:00
Owen Anderson
ae7e2c1e03 Move copyRegToReg from MRegisterInfo to TargetInstrInfo. This is part of the
Machine-level API cleanup instigated by Chris.

llvm-svn: 45470
2007-12-31 06:32:00 +00:00
Chris Lattner
de54e62962 update a couple of references to SSARegMap.
llvm-svn: 45468
2007-12-31 04:16:08 +00:00
Chris Lattner
96167aa93c Rename SSARegMap -> MachineRegisterInfo in keeping with the idea
that "machine" classes are used to represent the current state of
the code being compiled.  Given this expanded name, we can start 
moving other stuff into it.  For now, move the UsedPhysRegs and
LiveIn/LoveOuts vectors from MachineFunction into it.

Update all the clients to match.

This also reduces some needless #includes, such as MachineModuleInfo
from MachineFunction.

llvm-svn: 45467
2007-12-31 04:13:23 +00:00
Chris Lattner
f3f074dfdd fix typo duncan noticed!
llvm-svn: 45459
2007-12-30 21:21:10 +00:00
Chris Lattner
c2f0543beb use simplified operand addition methods.
llvm-svn: 45436
2007-12-30 00:57:42 +00:00
Chris Lattner
1b0ad80f53 use simplified operand addition methods.
llvm-svn: 45435
2007-12-30 00:51:11 +00:00
Chris Lattner
19dd6c4eac Start using the simplified methods for adding operands.
llvm-svn: 45432
2007-12-30 00:41:17 +00:00
Chris Lattner
ad9a6ccb83 Remove attribution from file headers, per discussion on llvmdev.
llvm-svn: 45418
2007-12-29 20:36:04 +00:00
Chris Lattner
8193d4af33 remove attribution from lib Makefiles.
llvm-svn: 45415
2007-12-29 20:09:26 +00:00
Chris Lattner
cd147e5596 Fold comparisons against a constant nan, and optimize ORD/UNORD
comparisons with a constant.  This allows us to compile isnan to:

_foo:
	fcmpu cr7, f1, f1
	mfcr r2
	rlwinm r3, r2, 0, 31, 31
	blr 

instead of:

LCPI1_0:					;  float
	.space	4
_foo:
	lis r2, ha16(LCPI1_0)
	lfs f0, lo16(LCPI1_0)(r2)
	fcmpu cr7, f1, f0
	mfcr r2
	rlwinm r3, r2, 0, 31, 31
	blr 

llvm-svn: 45405
2007-12-29 08:37:08 +00:00
Chris Lattner
38687aa2b2 make sure not to zap volatile stores, thanks a lot to Dale for noticing this!
llvm-svn: 45402
2007-12-29 07:15:45 +00:00
Chris Lattner
78ae7ff876 don't fold fp_round(fp_extend(load)) -> fp_round(extload)
llvm-svn: 45400
2007-12-29 06:55:23 +00:00
Chris Lattner
7cb2de8e48 Delete a store whose input is a load from the same pointer:
x = load p
  store x -> p

llvm-svn: 45398
2007-12-29 06:26:16 +00:00
Chris Lattner
084002dcb0 initial code for forming an FGETSIGN node. This is disabled until
legalizer support goes in.

llvm-svn: 45323
2007-12-22 21:35:38 +00:00
Chris Lattner
24b2a6de5c improve support for fgetsign
llvm-svn: 45322
2007-12-22 21:26:52 +00:00
Chris Lattner
a8f6fac7a3 Tell TargetLoweringOpt whether it is running before
or after legalize.

llvm-svn: 45321
2007-12-22 20:56:36 +00:00
Chris Lattner
f2aa80e0de Add a new FGETSIGN operation, which defaults to expand on all
targets.

llvm-svn: 45320
2007-12-22 20:47:56 +00:00
Evan Cheng
8fee10d116 More accurate checks for two-address constraints.
llvm-svn: 45259
2007-12-20 09:25:31 +00:00
Evan Cheng
1994e3038e Bring back a burr scheduling heuristic that's still needed.
llvm-svn: 45252
2007-12-20 02:22:36 +00:00
Duncan Sands
b2e0a67cc0 Simplify LowerCallTo by using a callsite.
llvm-svn: 45198
2007-12-19 09:48:52 +00:00
Duncan Sands
09250d2dff The C++ exception handling personality function wants
to know about calls that cannot throw ('nounwind'):
if such a call does throw for some reason then the
personality will terminate the program.  The distinction
between an ordinary call and a nounwind call is that
an ordinary call gets an entry in the exception table
but a nounwind call does not.  This patch sets up the
exception table appropriately.  One oddity is that
I've chosen to bracket nounwind calls with labels (like
invokes) - the other choice would have been to bracket
ordinary calls with labels.  While bracketing
ordinary calls is more natural (because bracketing
by labels would then correspond exactly to getting an
entry in the exception table), I didn't do it because
introducing labels impedes some optimizations and I'm
guessing that ordinary calls occur more often than
nounwind calls.  This fixes the gcc filter2 eh test,
at least at -O0 (the inliner needs some tweaking at
higher optimization levels).

llvm-svn: 45197
2007-12-19 07:36:31 +00:00
Evan Cheng
694994ba7b Don't leave newly created nodes around if it turns out they are not needed.
llvm-svn: 45186
2007-12-19 01:34:38 +00:00
Evan Cheng
8824950e8f Fix PR1872: SrcValue and SrcValueOffset should not be used to compute load / store node id.
llvm-svn: 45167
2007-12-18 19:38:14 +00:00
Evan Cheng
e8de683a74 Also print alignment and volatileness.
llvm-svn: 45164
2007-12-18 19:06:30 +00:00
Evan Cheng
36bfae49e3 FIX for PR1799: When a load is unfolded from an instruction, check if it is a new node. If not, do not create a new SUnit.
llvm-svn: 45157
2007-12-18 08:42:10 +00:00
Evan Cheng
e6c89b6120 SelectionDAG::dump() should print SrcValue of LoadSDNode and StoreSDNode.
llvm-svn: 45151
2007-12-18 07:02:08 +00:00
Duncan Sands
3a0d757bd5 Make invokes of inline asm legal. Teach codegen
how to lower them (with no attempt made to be
efficient, since they should only occur for
unoptimized code).

llvm-svn: 45108
2007-12-17 18:08:19 +00:00
Evan Cheng
713b398a35 Bug fix. Must also match ResNo when matching an operand with a user.
llvm-svn: 45028
2007-12-14 08:25:15 +00:00
Dan Gohman
0075ea1f5f Allow vector integer constants to be created with
SelectionDAG::getConstant, in the same way as vector floating-point
constants. This allows the legalize expansion code for @llvm.ctpop and
friends to be usable with vector types.

llvm-svn: 44954
2007-12-12 22:21:26 +00:00
Evan Cheng
b5ceb5ae06 Pretty print shuffle mask operand.
llvm-svn: 44837
2007-12-11 02:08:35 +00:00
Chris Lattner
ac2bfb78d9 Duncan points out that the subtraction is unneeded since hte code
knows the vector is not pow2

llvm-svn: 44740
2007-12-09 17:56:34 +00:00
Chris Lattner
84241dd771 Add support for splitting the operand of a return instruction.
llvm-svn: 44728
2007-12-09 00:06:19 +00:00
Chris Lattner
164d423f91 add many new cases to SplitResult. SplitResult now handles all the cases that LegalizeDAG does.
llvm-svn: 44726
2007-12-08 23:58:27 +00:00
Chris Lattner
6db5e91e16 Implement splitting support for store, allowing us to compile:
%f8 = type <8 x float>

define void @test_f8(%f8* %P, %f8* %Q, %f8* %S) {
	%p = load %f8* %P		; <%f8> [#uses=1]
	%q = load %f8* %Q		; <%f8> [#uses=1]
	%R = add %f8 %p, %q		; <%f8> [#uses=1]
	store %f8 %R, %f8* %S
	ret void
}

into:

_test_f8:
	movaps	16(%rdi), %xmm0
	addps	16(%rsi), %xmm0
	movaps	(%rdi), %xmm1
	addps	(%rsi), %xmm1
	movaps	%xmm0, 16(%rdx)
	movaps	%xmm1, (%rdx)
	ret

llvm-svn: 44725
2007-12-08 23:24:26 +00:00
Chris Lattner
b073361c3e implement vector splitting of load, undef, and binops.
llvm-svn: 44724
2007-12-08 23:08:49 +00:00
Chris Lattner
8942654140 implement some methods.
llvm-svn: 44723
2007-12-08 22:40:18 +00:00
Chris Lattner
cd7fc69c7c add scaffolding for splitting of vectors.
llvm-svn: 44722
2007-12-08 22:37:41 +00:00
Chris Lattner
558d101dbd reorganize header to separate into functional blocks.
llvm-svn: 44719
2007-12-08 21:59:32 +00:00
Chris Lattner
5e6bf4bc6f split scalarization out to its own file.
llvm-svn: 44718
2007-12-08 20:30:28 +00:00
Chris Lattner
b5925fda97 Split expansion out into its own file.
llvm-svn: 44717
2007-12-08 20:27:32 +00:00
Chris Lattner
633c76f607 Split promotion support out to its own file.
llvm-svn: 44716
2007-12-08 20:24:38 +00:00
Chris Lattner
39571d55bc Rename LegalizeDAGTypes.cpp -> LegalizeTypes.cpp
llvm-svn: 44715
2007-12-08 20:17:13 +00:00