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3016 Commits

Author SHA1 Message Date
Chris Lattner
d03a956a01 filecheckize a test and mark these wiht a cpu so it passes 
on hosts without cmovs.

llvm-svn: 98521
 2010-03-14 22:31:16 +00:00
Duncan Sands
ca595495e4 Turn calls to copysignl into an FCOPYSIGN node. Handle FCOPYSIGN nodes 
with ppc_f128 type by having the type legalizer turn these back into a
call to copysignl.

llvm-svn: 98514
 2010-03-14 21:08:40 +00:00
Chris Lattner
f71cb6c439 fix ShrinkDemandedOps to not leave dead nodes around, 
fixing PR6607

llvm-svn: 98512
 2010-03-14 19:46:02 +00:00
Chris Lattner
5049f23592 don't have i386-specific tests in CodeGen/Generic, PR6601. 
llvm-svn: 98508
 2010-03-14 18:51:18 +00:00
Chris Lattner
6feb7e3325 fix PR6605, X86ISD::CMP always returns i32 (EFLAGS), not 
the operand type.

llvm-svn: 98507
 2010-03-14 18:44:35 +00:00
Anton Korobeynikov
79a7c7823d Fix typo 
llvm-svn: 98506
 2010-03-14 18:42:52 +00:00
Anton Korobeynikov
846a117892 Feature test for half precision FP. 
llvm-svn: 98504
 2010-03-14 18:42:43 +00:00
Chris Lattner
9efbbcbe45 fix AsmPrinter::GetBlockAddressSymbol to always return a unique 
label instead of trying to form one based on the BB name (which
causes collisions if the name is empty).  This fixes PR6608

llvm-svn: 98495
 2010-03-14 17:53:23 +00:00
Chris Lattner
6e52e9db31 get MMI out of the label uniquing business, just go to MCContext 
to get unique assembler temporary labels.

llvm-svn: 98489
 2010-03-14 08:36:50 +00:00
Evan Cheng
d703df67ce Do not force indirect tailcall through fixed registers: eax, r11. Add support to allow loads to be folded to tail call instructions. 
llvm-svn: 98465
 2010-03-14 03:48:46 +00:00
Chris Lattner
d75813970a simplify code to use OutContext.GetOrCreateTemporarySymbol with 
no arguments instead of having to come up with a unique name.
This also makes the code less fragile.

llvm-svn: 98364
 2010-03-12 18:47:50 +00:00
Chris Lattner
53ebf8a7ca fix PR6577, a bug in sdbuilder lowering select instructions 
whose true value was not Val#0.

llvm-svn: 98336
 2010-03-12 07:15:36 +00:00
Bill Wendling
00810c39da revert r98270. 
llvm-svn: 98281
 2010-03-11 19:50:31 +00:00
Evan Cheng
31fe835bf2 Bad bad bug. x86 force indirect tail call address into eax when it's meant to force it into a call preserved register instead. Change it to ecx for now. 
llvm-svn: 98270
 2010-03-11 18:49:14 +00:00
Richard Osborne
4780109254 Add dag combine to simplify lmul(x, 0, a, b) 
llvm-svn: 98258
 2010-03-11 16:26:35 +00:00
Evan Cheng
8c4df8160e The check for coalescing a virtual register to a physical register, e.g. 
cl = EXTRACT_SUBREG reg1024, 1, is overly conservative. It should check
for overlaps of vr's live interval with the super registers of the
physical register (ECX in this case) and let JoinIntervals() handle checking
the coalescing feasibility against the physical register (cl in this case).

llvm-svn: 98251
 2010-03-11 08:20:21 +00:00
Eric Christopher
304f13c637 Have fast-isel understand llvm.objectsize. Update testcase for slightly 
different codegen.

llvm-svn: 98244
 2010-03-11 06:20:22 +00:00
Chris Lattner
a179e4d0a8 add support, testcases, and dox for the new GHC calling 
convention.  Patch by David Terei!

llvm-svn: 98212
 2010-03-11 00:22:57 +00:00
Chris Lattner
4ec0b670d5 fix PR6533 by updating the br(xor) code to remember the case 
when it looked past a trunc.

llvm-svn: 98203
 2010-03-10 23:46:44 +00:00
Richard Osborne
54a2c32670 Handle MVT::i64 type in DAG combine for ISD::ADD. Fold 64 bit 
expression add(add(mul(x,y),a),b) -> lmul(x,y,a,b) if all
operands are zero extended.

llvm-svn: 98168
 2010-03-10 18:12:27 +00:00
Richard Osborne
1a396d53ed Fold add(add(mul(x,y),a),b) -> lmul(x,y,a,b) if the intermediate 
results are unused elsewhere.

llvm-svn: 98157
 2010-03-10 16:19:31 +00:00
Richard Osborne
f57aea3d38 Prefer LMUL to MACCU as LMUL has no tied operands. 
llvm-svn: 98153
 2010-03-10 13:27:10 +00:00
Richard Osborne
0012bc1e41 Custom lower (S|U)MUL_LOHI -> MACC(S|U) 
llvm-svn: 98152
 2010-03-10 13:20:07 +00:00
Richard Osborne
54dfa01adc Lower add (mul a, b), c into MACCU / MACCS nodes which translate 
directly to the maccu / maccs instructions. We handle this in
ExpandADDSUB since after type legalisation it is messy to
recognise these operations.

llvm-svn: 98150
 2010-03-10 11:41:08 +00:00
Richard Osborne
e35eabdd69 Convert test to FileCheck. 
llvm-svn: 98148
 2010-03-10 11:24:03 +00:00
Evan Cheng
72811e8714 Fix typo. 
llvm-svn: 98142
 2010-03-10 07:07:55 +00:00
Evan Cheng
a3b6739749 Unbreak test on Linux. 
llvm-svn: 98141
 2010-03-10 07:07:45 +00:00
Evan Cheng
80ad113731 Enable machine cse pass. 
llvm-svn: 98132
 2010-03-10 03:07:41 +00:00
Dale Johannesen
90eab67320 The address of an indirect call must be in R12 on Darwin. 
Make it so.  (This patch is in LowerCall_Darwin, which seems
to be used by SVR4 code as well; since that doesn't belong here,
I haven't worried about this case.)

llvm-svn: 98077
 2010-03-09 20:15:42 +00:00
Richard Osborne
c420c4cb4e In cases where the carry / borrow unused converted ladd / lsub 
to an add or a sub.

llvm-svn: 98059
 2010-03-09 16:34:25 +00:00
Richard Osborne
f4e76cf44d Add DAG combine for ladd / lsub. 
llvm-svn: 98057
 2010-03-09 16:07:47 +00:00
Chris Lattner
9889c1eb9e move .set generation out of DwarfPrinter into AsmPrinter and 
MCize it.

llvm-svn: 98010
 2010-03-08 23:58:37 +00:00
Chris Lattner
27a9732450 simplify EmitSectionOffset to always use .set if it is 
available, the only thing this affects is that we produce
.set in one case we didn't before, which shouldn't harm
anything.  Make EmitSectionOffset call EmitDifference
instead of duplicating it.

llvm-svn: 98005
 2010-03-08 23:23:25 +00:00
Bob Wilson
0bfbd9b68c Fix a crash compiling 254.gap for Thumb2. The Thumb2 add/sub with 12-bit 
immediate instructions cannot set the condition codes, so they do not have
the extra cc_out operand.  We hit an assertion during tail duplication
because the instruction being duplicated had more operands that expected.

llvm-svn: 98001
 2010-03-08 22:56:15 +00:00
Evan Cheng
5967649780 Add documentation on sibling call optimization. Rename tailcall2.ll test to sibcall.ll. 
llvm-svn: 97980
 2010-03-08 21:05:02 +00:00
Wesley Peck
1fb4edc05d Re-committing the failed r97807 commit with changes to eliminate warnings. 
llvm-svn: 97891
 2010-03-06 23:23:12 +00:00
Anton Korobeynikov
bf16a17fc1 Initial bits of ARMv4-only support. 
Patch by John Tytgat!

llvm-svn: 97886
 2010-03-06 19:39:36 +00:00
Anton Korobeynikov
6f5523aa8b Do not use '&' prefix for globals when register base field is non-zero, otherwise msp430-as will silently miscompile the code (TI's assembler report an error though). 
This fixes PR6349

llvm-svn: 97877
 2010-03-06 11:41:12 +00:00
Chris Lattner
4279a078a5 revert r97807, it introduced build warnings. 
llvm-svn: 97869
 2010-03-06 04:32:46 +00:00
Charles Davis
8545afe0b0 Don't emit global symbols into the (__TEXT,__ustring) section on Darwin. This 
is a workaround for <rdar://problem/7672401/> (which I filed).

This let's us build Wine on Darwin, and it gets the Qt build there a little bit
further (so Doug says).

llvm-svn: 97845
 2010-03-05 22:28:45 +00:00
Jakob Stoklund Olesen
2664d295cb Better handling of dead super registers in LiveVariables. We used to do this: 
CALL ... %RAX<imp-def>
   ... [not using %RAX]
   %EAX = ..., %RAX<imp-use, kill>
   RET %EAX<imp-use,kill>

Now we do this:

   CALL ... %RAX<imp-def, dead>
   ... [not using %RAX]
   %EAX = ...
   RET %EAX<imp-use,kill>

By not artificially keeping %RAX alive, we lower register pressure a bit.

The correct number of instructions for 2008-08-05-SpillerBug.ll is obviously
55, anybody can see that. Sheesh.

llvm-svn: 97838
 2010-03-05 21:49:17 +00:00
Jakob Stoklund Olesen
8c5b8db5cd We don't really care about correct register liveness information after the 
post-ra scheduler has run. Disable the verifier checks that late in the game.

llvm-svn: 97837
 2010-03-05 21:49:13 +00:00
Jakob Stoklund Olesen
b0503beff1 Avoid creating bad PHI instructions when BR is being const-folded. 
llvm-svn: 97836
 2010-03-05 21:49:10 +00:00
Chris Lattner
f0692603d5 fix bss section printing for cell, patch by Kalle Raiskila! 
llvm-svn: 97814
 2010-03-05 18:55:36 +00:00
Wesley Peck
34004170c5 Reworking the stack layout that the MicroBlaze backend generates. 
The MicroBlaze backend was generating stack layouts that did not
conform correctly to the ABI. This update generates stack layouts
which are closer to what GCC does.

Variable arguments support was added as well but the stack layout
for varargs has not been finalized.

llvm-svn: 97807
 2010-03-05 15:26:02 +00:00
Evan Cheng
654ec2a663 Fix an oops in x86 sibcall optimization. If the ByVal callee argument is itself passed as a pointer, then it's obviously not safe to do a tail call. 
llvm-svn: 97797
 2010-03-05 08:38:04 +00:00
Chris Lattner
55e81eb49f Fix PR6497, a bug where we'd fold a load into an addc 
node which has a flag.  That flag in turn was used by an
already-selected adde which turned into an ADC32ri8 which
used a selected load which was chained to the load we
folded.  This flag use caused us to form a cycle.  Fix
this by not ignoring chains in IsLegalToFold even in
cases where the isel thinks it can.

llvm-svn: 97791
 2010-03-05 06:19:13 +00:00
Chris Lattner
bfdd17a2ea cleanup 
llvm-svn: 97790
 2010-03-05 06:17:43 +00:00
Evan Cheng
cf67ffa500 Rever 96389 and 96990. They are causing some miscompilation that I do not fully understand. 
llvm-svn: 97782
 2010-03-05 03:08:23 +00:00
Bill Wendling
543ce1f64a Revert r97766. It's deleting a tag. 
llvm-svn: 97768
 2010-03-05 00:33:59 +00:00