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Commit Graph

66553 Commits

Author SHA1 Message Date
Duncan Sands
c56946f7c5 Remove trailing whitespace.
llvm-svn: 118013
2010-11-02 13:43:07 +00:00
Owen Anderson
9d85c89ade Add correct NEON encodings for vld2, vld3, and vld4 basic variants.
llvm-svn: 117997
2010-11-02 01:24:55 +00:00
Eric Christopher
a376fe69a1 Remove an assert - it's possible to be hit, and we just want to avoid
handling those cases for now.

llvm-svn: 117996
2010-11-02 01:24:49 +00:00
Eric Christopher
a033f49ed1 Whitespeace
llvm-svn: 117995
2010-11-02 01:22:45 +00:00
Eric Christopher
26ddb729bd No really, no thumb1 for arm fast isel. Also add an informative comment as
to what someone would need to do to support thumb1.

llvm-svn: 117994
2010-11-02 01:21:28 +00:00
Chris Lattner
13ad624c70 rename operands -> asmoperands to be more descriptive.
llvm-svn: 117993
2010-11-02 01:03:43 +00:00
Jakob Stoklund Olesen
840357ca6a Don't try to split weird critical edges that really aren't:
BB#1: derived from LLVM BB %bb.nph28
    Live Ins: %AL
    Predecessors according to CFG: BB#0
	TEST8rr %reg16384<kill>, %reg16384, %EFLAGS<imp-def>; GR8:%reg16384
	JNE_4 <BB#2>, %EFLAGS<imp-use,kill>
	JMP_4 <BB#2>
    Successors according to CFG: BB#2 BB#2

These double CFG edges only ever occur in bugpoint-generated code, so there is
no need to attempt something clever.

llvm-svn: 117992
2010-11-02 00:58:37 +00:00
Owen Anderson
f4ab06d0b6 Attempt to provide correct encodings for a number of other vld1 variants, which we can't test
since we can neither generate nor parse them at the moment.

llvm-svn: 117988
2010-11-02 00:24:52 +00:00
Jim Grosbach
0b563b9b72 Tidy up.
llvm-svn: 117987
2010-11-02 00:16:39 +00:00
Owen Anderson
bdb861b46f Add aesthetic break.
llvm-svn: 117986
2010-11-02 00:14:00 +00:00
Jim Grosbach
8b64800473 Tweak to fix spelling and grammar in comment.
llvm-svn: 117985
2010-11-02 00:13:15 +00:00
Owen Anderson
6647eb222b Add correct NEON encodings for the "multiple single elements" form of vld.
llvm-svn: 117984
2010-11-02 00:05:05 +00:00
Jakob Stoklund Olesen
56f67c7d02 MachineLICM should not claim to be preserving the CFG when it can split critical
edges on demand.

llvm-svn: 117982
2010-11-01 23:59:55 +00:00
Jakob Stoklund Olesen
b0f64b3d2b Be more precise about verifying missing kill flags.
It is legal for an instruction to have two operands using the same register,
only one a kill. This is interpreted as a kill.

llvm-svn: 117981
2010-11-01 23:59:53 +00:00
Jakob Stoklund Olesen
a052004a89 When inserting copies during splitting, always use the parent register as the
source, and let rewrite() clean it up.

This way, kill flags on the inserted copies are fixed as well during rewrite().

We can't just assume that all the copies we insert are going to be kills since
critical edges into loop headers sometimes require both source and dest to be
live out of a block.

llvm-svn: 117980
2010-11-01 23:59:48 +00:00
Chris Lattner
032b91c666 fix computation of ambiguous instructions to not ignore the mnemonic.
FWIW, X86 has 254 ambiguous instructions.

llvm-svn: 117979
2010-11-01 23:57:23 +00:00
Jim Grosbach
e5a253a203 Explicitly check for non-consant reference in an LDRi12 instruction. Add FIXME
for handling the fixup necessary.

llvm-svn: 117978
2010-11-01 23:45:50 +00:00
Jim Grosbach
d50562f0ea Remove unused function.
llvm-svn: 117977
2010-11-01 23:40:56 +00:00
Bob Wilson
411b511ac0 Add support for alignment operands on VLD1-lane instructions.
This is another part of the fix for Radar 8599955.

llvm-svn: 117976
2010-11-01 23:40:51 +00:00
Bob Wilson
8f0cf81f09 Add VLD1-lane testcases for quad-register types.
llvm-svn: 117975
2010-11-01 23:40:46 +00:00
Bill Wendling
dd4216420a Missed reverting this bit.
llvm-svn: 117971
2010-11-01 23:17:54 +00:00
Bill Wendling
37c9af176d Minor cleanup.
llvm-svn: 117969
2010-11-01 23:11:22 +00:00
Chris Lattner
1bdba218ef give MatchableInfo::Operand a constructor
llvm-svn: 117968
2010-11-01 23:08:02 +00:00
Chris Lattner
f94c2b782a rearrange a bit.
llvm-svn: 117967
2010-11-01 23:07:52 +00:00
Bob Wilson
b6bc135df8 Add NEON VLD1-lane instructions. Partial fix for Radar 8599955.
llvm-svn: 117964
2010-11-01 22:04:05 +00:00
Jakob Stoklund Olesen
0ed56c87e4 Add kill flag verification.
At least X86FloatingPoint requires correct kill flags after register allocation,
and targets using register scavenging benefit. Conservative kill flags are not
enough.

llvm-svn: 117960
2010-11-01 21:51:31 +00:00
Jakob Stoklund Olesen
78ba455b51 Update kill flags while rewriting instructions after splitting.
llvm-svn: 117959
2010-11-01 21:51:29 +00:00
Bill Wendling
69e7c09c32 Move the machine operand MC encoding patterns to the parent classes.
llvm-svn: 117956
2010-11-01 21:17:06 +00:00
Bill Wendling
af717e3c58 Use ARM-style comments.
llvm-svn: 117955
2010-11-01 21:16:39 +00:00
Owen Anderson
47f0efad86 When folding away a (shl (shr)) pair, we need to check that the bits that will BECOME the low
bits are zero, not that the current low bits are zero.  Fixes <rdar://problem/8606771>.

llvm-svn: 117953
2010-11-01 21:08:20 +00:00
Chris Lattner
b0ac93cf15 use our fancy new MnemonicAlias mechanism to remove a bunch of hacks
from X86AsmParser.cpp

llvm-svn: 117952
2010-11-01 21:06:34 +00:00
Bill Wendling
4340c9449a When we look at instructions to convert to setting the 's' flag, we need to look
at more than those which define CPSR. You can have this situation:

(1)  subs  ...
(2)  sub   r6, r5, r4
(3)  movge ...
(4)  cmp   r6, 0
(5)  movge ...

We cannot convert (2) to "subs" because (3) is using the CPSR set by
(1). There's an analogous situation here:

(1)  sub   r1, r2, r3
(2)  sub   r4, r5, r6
(3)  cmp   r4, ...
(5)  movge ...
(6)  cmp   r1, ...
(7)  movge ...

We cannot convert (1) to "subs" because of the intervening use of CPSR.

llvm-svn: 117950
2010-11-01 20:41:43 +00:00
Jakob Stoklund Olesen
66012df062 Don't assign new registers created during a split to the same stack slot, but
give them individual stack slots once the are actually spilled.

llvm-svn: 117945
2010-11-01 19:49:57 +00:00
Jakob Stoklund Olesen
b4a55702b7 Add basic LiveStacks verification.
When an instruction refers to a spill slot with a LiveStacks entry, check that
the spill slot is live at the instruction.

llvm-svn: 117944
2010-11-01 19:49:52 +00:00
Owen Anderson
09920faec7 Use ARM-style comment syntax.
llvm-svn: 117941
2010-11-01 18:33:37 +00:00
Bob Wilson
a9c593e696 NEON does not support truncating vector stores. Radar 8598391.
llvm-svn: 117940
2010-11-01 18:31:39 +00:00
Owen Anderson
dbba9bcc36 Covert this test to .s form.
llvm-svn: 117939
2010-11-01 18:30:39 +00:00
Owen Anderson
38af2df6e5 Convert this test to .s form.
llvm-svn: 117938
2010-11-01 18:26:43 +00:00
Owen Anderson
8d4bfde002 Covert this test to .s form.
llvm-svn: 117937
2010-11-01 18:13:11 +00:00
Jim Grosbach
acc28d1b2a Add FIXME.
llvm-svn: 117936
2010-11-01 18:11:14 +00:00
Owen Anderson
d5757a8585 Covert this test to .s form.
llvm-svn: 117935
2010-11-01 18:03:16 +00:00
Rafael Espindola
eff645265a Fix test.
llvm-svn: 117932
2010-11-01 17:10:53 +00:00
Jim Grosbach
53d2661c60 Add 'IsThumb' predicate to patterns marked as 'IsThumb1Only'. The latter gates
codegen using the patterns; the latter gates the assembler recognizing the
instruction.

llvm-svn: 117931
2010-11-01 17:08:58 +00:00
Rafael Espindola
2f114f8430 Write the line info to .debug_line.
llvm-svn: 117930
2010-11-01 17:07:14 +00:00
Jim Grosbach
76910aa62f Mark ARM subtarget features that are available for the assembler.
llvm-svn: 117929
2010-11-01 16:59:54 +00:00
Jim Grosbach
2605b2b54f trailing whitespace
llvm-svn: 117927
2010-11-01 16:44:21 +00:00
Rafael Espindola
5571ce5ed4 Move EmitInstruction to MCObjectStreamer so that ELF and MachO can share it.
llvm-svn: 117925
2010-11-01 16:27:31 +00:00
Jim Grosbach
311aa5e22f The T2 extract/pack instructions are only valid in Thumb2 mode. Mark the
patterns as such

llvm-svn: 117923
2010-11-01 15:59:52 +00:00
Rafael Espindola
a7f92c500c Add support for .value.
llvm-svn: 117922
2010-11-01 15:29:07 +00:00
Rafael Espindola
7a38cb0144 Implement .weakref.
llvm-svn: 117911
2010-11-01 14:28:48 +00:00