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Author SHA1 Message Date
Cameron Esfahani
d7b8d91d4a 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116056 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-08 10:31:30 +00:00
Bob Wilson
7d24705f65 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116055 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-08 06:15:13 +00:00
Chris Lattner
4075546739 testcase that goes with r116053 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116054 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-08 05:12:30 +00:00
Chris Lattner
d043529b34 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116053 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-08 05:12:14 +00:00
Chris Lattner
77c7008469 rename test 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116052 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-08 05:05:06 +00:00
Chris Lattner
4a26318224 merge tests 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116051 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-08 05:04:58 +00:00
Chris Lattner
48b03bc70a filecheckize. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116050 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-08 05:02:29 +00:00
Chris Lattner
15df55d8c2 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116040 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-08 03:57:25 +00:00
Chris Lattner
99ae6659da 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116039 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-08 03:54:52 +00:00
Michael J. Spencer
0de25f7b38 Fix Formatting. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116038 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-08 03:17:21 +00:00
Michael J. Spencer
6ab219de7e MC-COFF: Fix Simple and Complex type. Fixes PR8320. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116037 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-08 03:17:11 +00:00
Michael J. Spencer
290b316a4e Fix Whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116036 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-08 03:16:56 +00:00
Daniel Dunbar
30db22f3c9 Update CMake. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116034 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-08 02:30:03 +00:00
Daniel Dunbar
b88b00ba2b Revert "Reimplement (part of) the or -> add optimization. Matching 'or' into 
'add'", which seems to have broken just about everything.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116033 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-08 02:07:32 +00:00
Daniel Dunbar
b38109fc2d Revert "Use the new TB_NOT_REVERSABLE flag instead of special ", which depends 
on r116007, which I am about to revert.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116032 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-08 02:07:29 +00:00
Daniel Dunbar
32f0cdba30 Revert "reimplement the second half of the or/add optimization. We should now", 
which depends on r116007, which I am about to revert.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116031 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-08 02:07:26 +00:00
Daniel Dunbar
6aa526bf76 Fix -Asserts warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116030 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-08 02:07:22 +00:00
Eric Christopher
7a56f33583 Move to thumb2 loads, fixes a problem with incoming registers 
as thumb1.

Fixes lencod.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116027 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-08 01:13:17 +00:00
Chris Lattner
cd3167b281 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".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116026 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-08 01:05:10 +00:00
Jim Grosbach
0f448b5bf6 Add test file for simple ARM binary encodings with MC 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116024 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-08 00:47:59 +00:00
Jim Grosbach
58f38bfa24 Enable binary encoding of some simple instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116022 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-08 00:39:21 +00:00
Eric Christopher
c9f1cddc51 Try to fix ocaml bindings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116021 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-08 00:36:21 +00:00
Jim Grosbach
bade37bb8b Make <target>CodeEmitter::getBinaryCodeForInstr() a const method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116018 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-08 00:21:28 +00:00
Chris Lattner
05e27c5786 Use the new TB_NOT_REVERSABLE flag instead of special 
casing FsMOVAPDrr/FsMOVAPSrr.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116016 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-08 00:03:02 +00:00
Michael J. Spencer
adab850daa MC-COFF: Add test for my last commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116015 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-08 00:00:28 +00:00
Chris Lattner
a228376185 simplify some map operations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116014 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 23:57:02 +00:00
Michael J. Spencer
b225adee29 MC-COFF: Handle relaxation in COFF better. Fixes PR8321. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116013 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 23:55:40 +00:00
Dan Gohman
fc7744b12d 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116012 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 23:52:18 +00:00
Dan Gohman
f63d70f218 Fix a spello. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116011 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 23:43:09 +00:00
Dan Gohman
23c3fde39a Charge a formula for explicit multiplies on scaled registers too, 
not just base registers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116010 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 23:41:58 +00:00
Dan Gohman
0d6715a413 Use size_t for consistency. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116009 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 23:37:58 +00:00
Dan Gohman
dd3db0e0c3 When merging one use into another, transfer the offsets from 
the old use to the new one.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116008 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 23:36:45 +00:00
Chris Lattner
122e2ea043 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116007 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 23:36:18 +00:00
Jakob Stoklund Olesen
0253df9a89 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116006 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 23:34:34 +00:00
Dan Gohman
c6897706b7 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116005 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 23:33:43 +00:00
Devang Patel
d82e9e7d93 Remove LoopIndexSplit pass. It is neither maintained nor used by anyone. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116004 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 23:29:37 +00:00
John Thompson
358cf1631a Unbreak cmake build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116003 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 23:12:15 +00:00
Evan Cheng
344d9db970 Code refactoring. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116002 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 23:12:15 +00:00
Chris Lattner
45a1cb26a3 Reduce casting in various tables by defining the table 
with the right types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116001 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 23:08:41 +00:00
Nick Lewycky
256f9604f1 Warn about broken GCCs on ARM due to the problem fixed: 
http://gcc.gnu.org/ml/gcc-patches/2010-09/msg01070.html


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115998 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 22:30:47 +00:00
Chris Lattner
afcd543a55 simplify code: don't build up vector only to assert it is empty. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115997 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 22:26:19 +00:00
Owen Anderson
ce665bd2e2 Now with fewer extraneous semicolons! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115996 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 22:25:06 +00:00
Jim Grosbach
0e99219e03 Move checking for t2MOVCCi16 to the right place. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115994 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 22:14:01 +00:00
Jim Grosbach
d6d4b42ba4 Trivial MC code emitter shell. No instruction forms actually handled yet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115993 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 22:12:50 +00:00
Evan Cheng
a98111cf15 Correctly check if a path is a directory. Fix by Brian Korver. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115991 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 22:05:57 +00:00
Devang Patel
7b172c6ae6 Provie a clearner interface so that FE can decide whether a function has prototype or not. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115988 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 22:03:01 +00:00
Jim Grosbach
9af82ba42b Include the auto-generated bits for machine encoding. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115987 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 21:57:55 +00:00
Nick Lewycky
366b1e1f3f Fix typo in comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115986 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 21:55:16 +00:00
Eric Christopher
df1f5a924e Remember to promote load/store types for stack to register size. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115984 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 21:40:18 +00:00
Chris Lattner
9649e9acdd convert test to use the existing classes that the multipatterns 
use.  Since TEST is completely different than all other binops,
don't define a multipattern for it.

This completes factorization of binops.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115982 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 21:31:03 +00:00