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Commit Graph

23162 Commits

Author SHA1 Message Date
Dan Gohman
72f5ed6a0d Remove an unused variable.
llvm-svn: 51721
2008-05-30 00:56:36 +00:00
Dan Gohman
15eb8b47aa Fix a typo in a comment.
llvm-svn: 51718
2008-05-30 00:08:18 +00:00
Dan Gohman
24ad4a21e3 Fix a copy+paste error in a comment.
llvm-svn: 51717
2008-05-30 00:02:02 +00:00
Owen Anderson
5ff0c098ae Make the renumbering correct in the face of deleted instructions that have been removed from the LiveIntervals maps.
llvm-svn: 51714
2008-05-29 23:01:22 +00:00
Bill Wendling
bcd38344b9 Unbreak build.
llvm-svn: 51709
2008-05-29 22:02:08 +00:00
Dan Gohman
aa8fcd5657 Add patterns for CALL32m and CALL64m. They aren't matched in most
cases due to an isel deficiency already noted in
lib/Target/X86/README.txt, but they can be matched in this fold-call.ll
testcase, for example.

This is interesting mainly because it exposes a tricky tblgen bug;
tblgen was incorrectly computing the starting index for variable_ops
in the case of a complex pattern.

llvm-svn: 51706
2008-05-29 21:50:34 +00:00
Bill Wendling
2ba98ca60f Remove more iostream header includes. Needed to implement a "FlushStream"
function to flush a specified std::ostream.

llvm-svn: 51705
2008-05-29 21:46:33 +00:00
Bill Wendling
4a95fce74c Remove <iostream>.
llvm-svn: 51704
2008-05-29 21:29:39 +00:00
Owen Anderson
0eabbbfc58 Add newline at end of file.
llvm-svn: 51701
2008-05-29 21:05:16 +00:00
Dan Gohman
4e87d82476 Fix a tblgen problem handling variable_ops in tblgen instruction
definitions. This adds a new construct, "discard", for indicating
that a named node in the input matching pattern is to be discarded,
instead of corresponding to a node in the output pattern. This
allows tblgen to know where the arguments for the varaible_ops are
supposed to begin.

This fixes "rdar://5791600", whatever that is ;-).

llvm-svn: 51699
2008-05-29 19:57:41 +00:00
Dan Gohman
d8b84813d5 const-ify getOpcode.
llvm-svn: 51698
2008-05-29 19:53:46 +00:00
Dan Gohman
e256337a1a Expand small memmovs using inline code. Set the X86 threshold for expanding
memmove to a more plausible value, now that it's actually being used.

llvm-svn: 51696
2008-05-29 19:42:22 +00:00
Owen Anderson
7de6e25492 Revert part of my last patch that I didn't intend to commit yet.
llvm-svn: 51694
2008-05-29 18:35:21 +00:00
Owen Anderson
9db9e1a6a4 Renumbering needs to account for instruction slot offsets when performing lookups in the index maps.
llvm-svn: 51691
2008-05-29 18:15:49 +00:00
Owen Anderson
0e26c5897a Force postdom to be linked into opt and bugpoint, even though it is no longer used by any passes.
llvm-svn: 51686
2008-05-29 17:00:13 +00:00
Duncan Sands
18fb7b1fa3 Add a newline at the end of this file.
llvm-svn: 51680
2008-05-29 14:38:23 +00:00
Owen Anderson
bd3940abc7 Replace the old ADCE implementation with a new one that more simply solves
the one case that ADCE catches that normal DCE doesn't: non-induction variable
loop computations.

This implementation handles this problem without using postdominators.

llvm-svn: 51668
2008-05-29 08:45:13 +00:00
Evan Cheng
04c0915a2f Implement vector shift up / down and insert zero with ps{rl}lq / ps{rl}ldq.
llvm-svn: 51667
2008-05-29 08:22:04 +00:00
Owen Anderson
ccaf62ac5e Remove debugging code.
llvm-svn: 51666
2008-05-29 08:15:48 +00:00
Bill Wendling
81199f0cc8 XOR?RI instructions aren't as cheap as moves.
llvm-svn: 51664
2008-05-29 03:46:36 +00:00
Gabor Greif
b320ae0f07 convert more operand loops to iterator formulation
llvm-svn: 51663
2008-05-29 01:59:18 +00:00
Bill Wendling
edb38e9410 Implement "AsCheapAsAMove" for some obviously cheap instructions: xor and the
like.

llvm-svn: 51662
2008-05-29 01:02:09 +00:00
Gabor Greif
39350bab39 convert another operand loop to iterator formulation
llvm-svn: 51661
2008-05-29 00:51:08 +00:00
Bill Wendling
b56bc61cf4 Add a flag to indicate that an instruction is as cheap (or cheaper) than a move
instruction to execute. This can be used for transformations (like two-address
conversion) to remat an instruction instead of generating a "move"
instruction. The idea is to decrease the live ranges and register pressure and
all that jazz.

llvm-svn: 51660
2008-05-28 22:54:52 +00:00
Bill Wendling
5011b8d77d Check the "isSafeToMove" predicate, which has a series of tests to make sure
that it's safe to remat an instruction.

llvm-svn: 51659
2008-05-28 22:52:47 +00:00
Owen Anderson
219ecc1ff1 Remap VNInfo data as well when doing renumbering.
llvm-svn: 51658
2008-05-28 22:40:08 +00:00
Owen Anderson
705b97141c Factor the numbering computation into a separate method, and add the slightest attempt at some renumbering logic, which is currently unused.
llvm-svn: 51652
2008-05-28 20:54:50 +00:00
Evan Cheng
cd45b11bc1 Fix PR2289: vr defined by multiple implicit_def as result of coalescing.
llvm-svn: 51648
2008-05-28 17:40:10 +00:00
Evan Cheng
591b57edd6 Teach local register allocator to deal with landing pad MBB's.
llvm-svn: 51647
2008-05-28 17:22:32 +00:00
Nate Begeman
e0d283668e Update some comments noticed in a recent checkin
llvm-svn: 51644
2008-05-28 16:31:36 +00:00
Chris Lattner
7a7da4f9c3 Implement PR2370: memmove(x,x,size) -> noop.
llvm-svn: 51636
2008-05-28 05:30:41 +00:00
Chris Lattner
857e1e9cab Add chain inputs for loads.
llvm-svn: 51635
2008-05-28 04:25:57 +00:00
Chris Lattner
93047192f3 Fix CodeGen/Generic/2005-10-21-longlonggtu.ll on ia64.
llvm-svn: 51634
2008-05-28 04:14:30 +00:00
Chris Lattner
294b436abf loads should get chains. THis helps but does not solve CodeGen/Generic/2003-05-27-phifcmpd.ll
on ia64.

llvm-svn: 51633
2008-05-28 04:06:52 +00:00
Chris Lattner
d33dececf3 Fix 2006-04-28-Sign-extend-bool.ll for ia64.
llvm-svn: 51632
2008-05-28 04:00:06 +00:00
Chris Lattner
569e867c01 reindent.
llvm-svn: 51631
2008-05-28 03:59:32 +00:00
Dan Gohman
a5549a2f9c Fix the encoding for two more "rm" instructions that were using MRMSrcReg.
llvm-svn: 51630
2008-05-28 01:50:19 +00:00
Mon P Wang
8e37b2d13e Fixed X86 encoding error CVTPS2PD and CVTPD2PS when the source operand
is a memory location

llvm-svn: 51626
2008-05-28 00:42:27 +00:00
Nate Begeman
23dd264da6 Don't attempt to create VZEXT_LOAD out of an extload. This an issue where the
code generator would do something like this:

f64 = load f32 <anyext>, f32mem
v2f64 = insertelt undef, %0, 0
v2f64 = insertelt %1, 0.0, 1

into 

v2f64 = vzext_load f32mem

which on x86 is movsd, when you really wanted a cvtss2sd/movsd pair.

llvm-svn: 51624
2008-05-28 00:24:25 +00:00
Dan Gohman
4b11213552 Use Function::getEntryBlock instead of Function::begin, for clarity.
llvm-svn: 51613
2008-05-27 20:55:29 +00:00
Dan Gohman
327d2c6167 Print debug output when any edge becomes executable, including
the first visited edge.

llvm-svn: 51612
2008-05-27 20:47:30 +00:00
Bill Wendling
e5d738e779 Incorporated feedback: Check that the implicitly defined operands aren't used
before deleting the instruction.

llvm-svn: 51609
2008-05-27 20:40:52 +00:00
Dan Gohman
92d5dff525 Tidy up whitespace in ConstantRange::print output.
llvm-svn: 51606
2008-05-27 20:29:07 +00:00
Gabor Greif
2abf6ec2e5 back out last commit: The .cpp file for a module should include its corresponding header first, even if redundant.
llvm-svn: 51598
2008-05-27 17:26:02 +00:00
Duncan Sands
4757a8dd76 Fix some constructs that gcc-4.4 warns about.
llvm-svn: 51591
2008-05-27 11:50:51 +00:00
Gabor Greif
0b9cf0d491 prune unneeded #includes
llvm-svn: 51590
2008-05-27 11:06:03 +00:00
Gabor Greif
0fb81af839 remove unneeded reinterpret_casts
llvm-svn: 51589
2008-05-27 11:03:29 +00:00
Gabor Greif
b93cb3dc6f We have the correct headers included to know that BB isa Value. No reinterpret_cast necessary.
llvm-svn: 51588
2008-05-27 10:48:39 +00:00
Nick Lewycky
230db50d91 InequalityGraph::node() can create new nodes, invalidating iterators across
the set of nodes. Fix makeEqual to handle this by creating the new node first
then iterating across them second.

llvm-svn: 51573
2008-05-27 00:59:05 +00:00
Nick Lewycky
bc54ac9d10 Grammaro.
llvm-svn: 51572
2008-05-26 22:49:36 +00:00