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Commit Graph

42777 Commits

Author SHA1 Message Date
Mikhail Glushenkov
4077e2da6f FindExecutable: remove the executability check.
This makes the behaviour of FindExecutable more consistent across platforms, but
I'm not very happy with the name...

llvm-svn: 118049
2010-11-02 20:32:46 +00:00
Mikhail Glushenkov
b1d2a5ac52 Make FindProgramByName return paths with slashes unmodified on Windows.
This makes its behaviour more consistent across platforms.

llvm-svn: 118048
2010-11-02 20:32:39 +00:00
Mikhail Glushenkov
efb9f9754d 80-col violations.
llvm-svn: 118045
2010-11-02 20:32:31 +00:00
Mikhail Glushenkov
c86f1d26e9 Path: Add GetEXESuffix() to complement GetDLLSuffix().
llvm-svn: 118042
2010-11-02 20:32:26 +00:00
Andrew Trick
f861447393 Fixes <rdar://problem/8612856>: During postRAsched, the antidependence
breaker needs to check all definitions of the antidepenent register to
avoid multiple defs of the same new register.

llvm-svn: 118032
2010-11-02 18:16:45 +00:00
Dale Johannesen
b758b5a1a3 Apply patch for use-after-free in InlineAsm constant handling,
PR 8522 / 8616046.  Test reduction, analysis and patch by Tim Deegan!
(However, review by someone who understands the classes here better
is welcome.  John Krum will return!)

llvm-svn: 118030
2010-11-02 17:59:27 +00:00
Jim Grosbach
5fe61a5f86 Sort bit assignments. Cosmetic change only.
llvm-svn: 118029
2010-11-02 17:59:04 +00:00
Devang Patel
37fa9bb66a Simplify.
llvm-svn: 118027
2010-11-02 17:37:00 +00:00
Jim Grosbach
d6df785c6d Revert r114340 (improvements in Darwin function prologue/epilogue), as it broke
assumptions about stack layout. Specifically, LR must be saved next to FP.

llvm-svn: 118026
2010-11-02 17:35:25 +00:00
Rafael Espindola
1db6a21aff Add support for expressions in .sleb/.uleb directives.
llvm-svn: 118023
2010-11-02 17:22:24 +00:00
Devang Patel
e3575ef54f If value map does not have register for an argument then try to find frame index before giving up.
llvm-svn: 118022
2010-11-02 17:19:03 +00:00
Devang Patel
efd9ac540a Use frameindex, if available, as a last resort to emit debug info for a parameter.
llvm-svn: 118020
2010-11-02 17:01:30 +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
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
Owen Anderson
bdb861b46f Add aesthetic break.
llvm-svn: 117986
2010-11-02 00:14:00 +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
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
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
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
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
Bob Wilson
a9c593e696 NEON does not support truncating vector stores. Radar 8598391.
llvm-svn: 117940
2010-11-01 18:31:39 +00:00
Jim Grosbach
acc28d1b2a Add FIXME.
llvm-svn: 117936
2010-11-01 18:11:14 +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
Bill Wendling
da3d0ce7b5 Move instruction encoding bits into the parent class and remove the temporary
*_Encode classes. These instructions are the only ones which use those classes,
so a subclass isn't necessary.

llvm-svn: 117906
2010-11-01 06:00:39 +00:00
Bill Wendling
70856991c5 The testcase is now XFAILed. Sorry about the breakage.
llvm-svn: 117904
2010-11-01 05:50:55 +00:00