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Author SHA1 Message Date
Jim Grosbach
85b45fcc52 Reapply 116059, this time without the fatfingered pasto at the top. 
''const'ify getMachineOpValue() and associated helpers.'

llvm-svn: 116067
 2010-10-08 17:45:54 +00:00
Jim Grosbach
674fa65e33 Reverting 116059. Bots are unhappy with it. 
llvm-svn: 116064
 2010-10-08 17:28:40 +00:00
Andrew Trick
0d8a3d67e0 reverting 116056: win64_params.ll may need to be conditionalized? 
llvm-svn: 116063
 2010-10-08 17:22:42 +00:00
Devang Patel
3090b0ebf1 Line number 0 indicates there is no source line/file name info available for this construct. 
llvm-svn: 116061
 2010-10-08 17:18:54 +00:00
Jim Grosbach
8d4bb23650 'const'ify getMachineOpValue() and associated helpers. 
llvm-svn: 116059
 2010-10-08 16:52:44 +00:00
Kenneth Uildriks
0545afa8fd Start separating out code metrics into code size metrics and code performance metrics. Partial Specialization will apply the former to function specializations, and the latter to all callsites that can use a specialization, in order to decide whether to create a specialization 
llvm-svn: 116057
 2010-10-08 13:57:31 +00:00
Cameron Esfahani
a9f8bb1356 Small patch to restore home register stack space allocation for the Win64 case. Add test case. This code eventually needs to be tighter, since it's always allocating it, even in leaf routines. 
llvm-svn: 116056
 2010-10-08 10:31:30 +00:00
Bob Wilson
8689a52c10 Change register allocation order for ARM VFP and NEON registers to put the 
callee-saved registers at the end of the lists.  Also prefer to avoid using
the low registers that are in register subclasses required by certain
instructions, so that those registers will more likely be available when needed.
This change makes a huge improvement in spilling in some cases.  Thanks to
Jakob for helping me realize the problem.

Most of this patch is fixing the testsuite.  There are quite a few places
where we're checking for specific registers.  I changed those to wildcards
in places where that doesn't weaken the tests.  The spill-q.ll and
thumb2-spill-q.ll tests stopped spilling with this change, so I added a bunch
of live values to force spills on those tests.

llvm-svn: 116055
 2010-10-08 06:15:13 +00:00
Chris Lattner
761f40f7ee testcase that goes with r116053 
llvm-svn: 116054
 2010-10-08 05:12:30 +00:00
Chris Lattner
244e13f439 fix a subtle bug I introduced in my refactoring, where we stopped preferring 
the i8 versions of instructions in some cases.  In test6, we started 
generating:

	cmpq	$0, -8(%rsp)            ## encoding: [0x48,0x81,0x7c,0x24,0xf8,0x00,0x00,0x00,0x00]
                                        ## <MCInst #478 CMP64mi32
                                        ##  <MCOperand Reg:114>
                                        ##  <MCOperand Imm:1>
                                        ##  <MCOperand Reg:0>
                                        ##  <MCOperand Imm:-8>
                                        ##  <MCOperand Reg:0>
                                        ##  <MCOperand Imm:0>>

instead of:

	cmpq	$0, -8(%rsp)            ## encoding: [0x48,0x83,0x7c,0x24,0xf8,0x00]
                                        ## <MCInst #479 CMP64mi8
                                        ##  <MCOperand Reg:114>
                                        ##  <MCOperand Imm:1>
                                        ##  <MCOperand Reg:0>
                                        ##  <MCOperand Imm:-8>
                                        ##  <MCOperand Reg:0>
                                        ##  <MCOperand Imm:0>>

Fix this and add some comments.

llvm-svn: 116053
 2010-10-08 05:12:14 +00:00
Chris Lattner
c77216343c rename test 
llvm-svn: 116052
 2010-10-08 05:05:06 +00:00
Chris Lattner
c694d80729 merge tests 
llvm-svn: 116051
 2010-10-08 05:04:58 +00:00
Chris Lattner
79fbe67839 filecheckize. 
llvm-svn: 116050
 2010-10-08 05:02:29 +00:00
Chris Lattner
82ce325f16 reapply: Use the new TB_NOT_REVERSABLE flag instead of special 
reapply: reimplement the second half of the or/add optimization.  We should now

with no changes.  Turns out that one missing "Defs = [EFLAGS]" can upset things
a bit.

llvm-svn: 116040
 2010-10-08 03:57:25 +00:00
Chris Lattner
fbdd285dd6 reapply the patch reverted in r116033: 
"Reimplement (part of) the or -> add optimization.  Matching 'or' into 'add'"

With a critical fix: the add pseudos clobber EFLAGS.

llvm-svn: 116039
 2010-10-08 03:54:52 +00:00
Michael J. Spencer
3725cf3d21 Fix Formatting. 
llvm-svn: 116038
 2010-10-08 03:17:21 +00:00
Michael J. Spencer
bdf3b8770f MC-COFF: Fix Simple and Complex type. Fixes PR8320. 
llvm-svn: 116037
 2010-10-08 03:17:11 +00:00
Michael J. Spencer
fc3f9d7c92 Fix Whitespace. 
llvm-svn: 116036
 2010-10-08 03:16:56 +00:00
Daniel Dunbar
8b2890afae Update CMake. 
llvm-svn: 116034
 2010-10-08 02:30:03 +00:00
Daniel Dunbar
d3b6b8bf2b Revert "Reimplement (part of) the or -> add optimization. Matching 'or' into 
'add'", which seems to have broken just about everything.

llvm-svn: 116033
 2010-10-08 02:07:32 +00:00
Daniel Dunbar
59848f6703 Revert "Use the new TB_NOT_REVERSABLE flag instead of special ", which depends 
on r116007, which I am about to revert.

llvm-svn: 116032
 2010-10-08 02:07:29 +00:00
Daniel Dunbar
983fae5a86 Revert "reimplement the second half of the or/add optimization. We should now", 
which depends on r116007, which I am about to revert.

llvm-svn: 116031
 2010-10-08 02:07:26 +00:00
Daniel Dunbar
8ac0e27ca6 Fix -Asserts warning. 
llvm-svn: 116030
 2010-10-08 02:07:22 +00:00
Eric Christopher
45a5ff5ca3 Move to thumb2 loads, fixes a problem with incoming registers 
as thumb1.

Fixes lencod.

llvm-svn: 116027
 2010-10-08 01:13:17 +00:00
Chris Lattner
7577cb7b49 reimplement the second half of the or/add optimization. We should now 
only end up emitting LEA instead of OR.  If we aren't able to promote
something into an LEA, we should never be emitting it as an ADD.

Add some testcases that we emit "or" in cases where we used to produce
an "add".

llvm-svn: 116026
 2010-10-08 01:05:10 +00:00
Jim Grosbach
edbbf33203 Add test file for simple ARM binary encodings with MC 
llvm-svn: 116024
 2010-10-08 00:47:59 +00:00
Jim Grosbach
1214818a3e Enable binary encoding of some simple instructions. 
llvm-svn: 116022
 2010-10-08 00:39:21 +00:00
Eric Christopher
4d10241635 Try to fix ocaml bindings. 
llvm-svn: 116021
 2010-10-08 00:36:21 +00:00
Jim Grosbach
df2ff926a6 Make <target>CodeEmitter::getBinaryCodeForInstr() a const method. 
llvm-svn: 116018
 2010-10-08 00:21:28 +00:00
Chris Lattner
d62e94b465 Use the new TB_NOT_REVERSABLE flag instead of special 
casing FsMOVAPDrr/FsMOVAPSrr.

llvm-svn: 116016
 2010-10-08 00:03:02 +00:00
Michael J. Spencer
452789b5c0 MC-COFF: Add test for my last commit. 
llvm-svn: 116015
 2010-10-08 00:00:28 +00:00
Chris Lattner
72e7e84c3f simplify some map operations. 
llvm-svn: 116014
 2010-10-07 23:57:02 +00:00
Michael J. Spencer
43ccdd557d MC-COFF: Handle relaxation in COFF better. Fixes PR8321. 
llvm-svn: 116013
 2010-10-07 23:55:40 +00:00
Dan Gohman
27e145fc97 Delete the FormulaSorter class and inline its one method into its 
one user. This code will be restructured soon and FormulaSorter
is getting in the way.

llvm-svn: 116012
 2010-10-07 23:52:18 +00:00
Dan Gohman
9b55022e83 Fix a spello. 
llvm-svn: 116011
 2010-10-07 23:43:09 +00:00
Dan Gohman
d8eb76e4e8 Charge a formula for explicit multiplies on scaled registers too, 
not just base registers.

llvm-svn: 116010
 2010-10-07 23:41:58 +00:00
Dan Gohman
aa2c086eb9 Use size_t for consistency. 
llvm-svn: 116009
 2010-10-07 23:37:58 +00:00
Dan Gohman
8cc92ffff1 When merging one use into another, transfer the offsets from 
the old use to the new one.

llvm-svn: 116008
 2010-10-07 23:36:45 +00:00
Chris Lattner
d8f05bf65e Reimplement (part of) the or -> add optimization. Matching 'or' into 'add' 
is general goodness because it allows ORs to be converted to LEA to avoid
inserting copies.  However, this is bad because it makes the generated .s
file less obvious and gives valgrind heartburn (tons of false positives in
bitfield code).

While the general fix should be in valgrind, we can at least try to avoid
emitting ADD instructions that *don't* get promoted to LEA.  This is more
work because it requires introducing pseudo instructions to represents
"add that knows the bits are disjoint", but hey, people really love valgrind.

This fixes this testcase:
https://bugs.kde.org/show_bug.cgi?id=242137#c20

the add r/i cases are coming next.

llvm-svn: 116007
 2010-10-07 23:36:18 +00:00
Jakob Stoklund Olesen
1d81101e97 After splitting, the remaining LiveInterval may be fragmented into multiple 
connected components. These components should be allocated different virtual
registers because there is no reason for them to be allocated together.

Add the ConnectedVNInfoEqClasses class to calculate the connected components,
and move values to new LiveIntervals.

Use it from SplitKit::rewrite by creating new virtual registers for the
components.

llvm-svn: 116006
 2010-10-07 23:34:34 +00:00
Dan Gohman
b8c38d92e4 Fix LSR to keep the RegUseTracker up to date when combining users. 
This doesn't usually matter, because the other heuristics usually
succeed regardless, but it's good to keep the register use
bookkeeping consistent.

llvm-svn: 116005
 2010-10-07 23:33:43 +00:00
Devang Patel
35201e0fd6 Remove LoopIndexSplit pass. It is neither maintained nor used by anyone. 
llvm-svn: 116004
 2010-10-07 23:29:37 +00:00
John Thompson
87f1278fd9 Unbreak cmake build. 
llvm-svn: 116003
 2010-10-07 23:12:15 +00:00
Evan Cheng
7fa1e3a474 Code refactoring. 
llvm-svn: 116002
 2010-10-07 23:12:15 +00:00
Chris Lattner
2212441ff7 Reduce casting in various tables by defining the table 
with the right types.

llvm-svn: 116001
 2010-10-07 23:08:41 +00:00
Nick Lewycky
564c2d6894 Warn about broken GCCs on ARM due to the problem fixed: 
http://gcc.gnu.org/ml/gcc-patches/2010-09/msg01070.html

llvm-svn: 115998
 2010-10-07 22:30:47 +00:00
Chris Lattner
17850b2677 simplify code: don't build up vector only to assert it is empty. 
llvm-svn: 115997
 2010-10-07 22:26:19 +00:00
Owen Anderson
69cbf2e8b7 Now with fewer extraneous semicolons! 
llvm-svn: 115996
 2010-10-07 22:25:06 +00:00
Jim Grosbach
504d7b7d8b Move checking for t2MOVCCi16 to the right place. 
llvm-svn: 115994
 2010-10-07 22:14:01 +00:00
Jim Grosbach
e949170bad Trivial MC code emitter shell. No instruction forms actually handled yet. 
llvm-svn: 115993
 2010-10-07 22:12:50 +00:00