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Author SHA1 Message Date
Evan Cheng
a07cd58978 Fix a major bug in operand latency computation. The use index must be adjusted 
by the number of defs first for it to match the instruction itinerary.

llvm-svn: 117518
 2010-10-28 01:46:29 +00:00
Dale Johannesen
b78530f9b0 Fix pastos in handling of AVX cvttsd2si, PR8491. 
Bruno, please review, but I'm pretty sure this is right.
Patch by Alex Mac!

llvm-svn: 117514
 2010-10-28 00:35:54 +00:00
Owen Anderson
e75f7c5419 Add correct NEON encodings for vtbl and vtbx. 
llvm-svn: 117513
 2010-10-28 00:18:46 +00:00
Owen Anderson
008116cb71 Add correct NEON encodings for vext, vtrn, vuzp, and vzip. 
llvm-svn: 117512
 2010-10-27 23:56:39 +00:00
Bob Wilson
2f8b69b196 Fix compiler warnings about signed/unsigned comparisons. 
llvm-svn: 117511
 2010-10-27 23:49:00 +00:00
Dale Johannesen
454b9243bd Teach InstCombine not to use Add and Neg on FP. PR 8490. 
llvm-svn: 117510
 2010-10-27 23:45:18 +00:00
Evan Cheng
44d2802e1d Shifter ops are not always free. Do not fold them (especially to form 
complex load / store addressing mode) when they have higher cost and
when they have more than one use.

llvm-svn: 117509
 2010-10-27 23:41:30 +00:00
Evan Cheng
77693156fb Putting r117193 back except for the compile time cost. Rather than assuming fallthroughs uses all registers, just gather the union of all successor liveins. 
llvm-svn: 117506
 2010-10-27 23:17:17 +00:00
Jim Grosbach
86ecfda983 Refactor ARM STR/STRB instruction patterns into STR{B}i12 and STR{B}rs, like 
the LDR instructions have. This makes the literal/register forms of the
instructions explicit and allows us to assign scheduling itineraries
appropriately. rdar://8477752

llvm-svn: 117505
 2010-10-27 23:12:14 +00:00
Owen Anderson
27049dbce3 Tests for NEON encoding of vrev. 
llvm-svn: 117502
 2010-10-27 22:54:49 +00:00
Owen Anderson
9437a20a72 Provide correct encodings for NEON vcvt, which has its own special immediate encoding 
for specifying fractional bits for fixed point conversions.

llvm-svn: 117501
 2010-10-27 22:49:00 +00:00
Jim Grosbach
1d5b71b3cc Trailing whitespace 
llvm-svn: 117496
 2010-10-27 21:39:08 +00:00
Owen Anderson
d28d229ded Provide correct encodings for the get_lane and set_lane variants of vmov. 
llvm-svn: 117495
 2010-10-27 21:28:09 +00:00
Rafael Espindola
68ec803155 Add support for R_386_TLS_GD, R_386_TLS_LE_32, R_386_TLS_IE and R_386_TLS_LE. 
llvm-svn: 117494
 2010-10-27 21:23:52 +00:00
Kevin Enderby
a53cc6a764 Added the x86 instruction ud2b (2nd official undefined instruction). 
llvm-svn: 117485
 2010-10-27 20:46:49 +00:00
Jim Grosbach
db7ba38ca4 JIT imm12 encoding for constant pool entry references. 
llvm-svn: 117483
 2010-10-27 20:39:40 +00:00
Bob Wilson
cdc8dff3ac SelectionDAG shuffle nodes do not allow operands with different numbers of 
elements than the result vector type.  So, when an instruction like:

%8 = shufflevector <2 x float> %4, <2 x float> %7, <4 x i32> <i32 1, i32 0, i32 3, i32 2>

is translated to a DAG, each operand is changed to a concat_vectors node that appends 2 undef elements.  That is:

shuffle [a,b], [c,d] is changed to:
shuffle [a,b,u,u], [c,d,u,u]

That's probably the right thing for x86 but for NEON, we'd much rather have:

shuffle [a,b,c,d], undef

Teach the DAG combiner how to do that transformation for ARM.  Radar 8597007.

llvm-svn: 117482
 2010-10-27 20:38:28 +00:00
Rafael Espindola
2ea1239070 Implement R_X86_64_GOTTPOFF, R_X86_64_TLSGD and R_X86_64_TPOFF32. 
llvm-svn: 117481
 2010-10-27 20:28:07 +00:00
Jim Grosbach
0df1207e99 ARM JIT fix for LDRi12 and company. 
llvm-svn: 117478
 2010-10-27 19:55:59 +00:00
Benjamin Kramer
a79201f572 Replace pointer arithmetic with StringRef::substr. 
llvm-svn: 117477
 2010-10-27 19:53:52 +00:00
Owen Anderson
7c46fcfee4 Provide correct NEON encodings for vdup. 
llvm-svn: 117475
 2010-10-27 19:25:54 +00:00
Michael J. Spencer
5518dda87e x86-Win32: Switch ftol2 calling convention from stdcall to C. 
llvm-svn: 117474
 2010-10-27 18:52:38 +00:00
Michael J. Spencer
bf82646290 COFF: Add IMAGE_SCN_MEM_READ to text sections. 
There are currently 100 references to COFF::IMAGE_SCN in 6 files
and 11 different functions. Section to attribute mapping really
needs to happen in one place to avoid problems like this.

llvm-svn: 117473
 2010-10-27 18:52:29 +00:00
Michael J. Spencer
fc69783598 Fix whitespace. 
llvm-svn: 117472
 2010-10-27 18:52:20 +00:00
Rafael Espindola
4db628cd34 Set default type and flags for .init and .fini. 
llvm-svn: 117471
 2010-10-27 18:45:20 +00:00
Owen Anderson
dbed42aff5 Tests for NEON encoding of vmovl, vmovn, vqmovn, and vqmovun. 
llvm-svn: 117469
 2010-10-27 18:17:12 +00:00
Devang Patel
6c3a77ab58 Give a name to nameless argument. 
llvm-svn: 117468
 2010-10-27 18:08:31 +00:00
Owen Anderson
25d75e80ba Tests for NEON encoding of vcls, vclz, and vcnt. 
llvm-svn: 117466
 2010-10-27 18:05:25 +00:00
Owen Anderson
a5643da004 Tests for NEON encoding of vneg and vqneg. 
llvm-svn: 117463
 2010-10-27 17:57:26 +00:00
Rafael Espindola
ca302c994a Produce an error for an invalid use of .symver. 
llvm-svn: 117462
 2010-10-27 17:56:18 +00:00
Jim Grosbach
5d4415c6b0 The new LDR* instruction patterns should handle the necessary encoding of 
operands in the TableGen'erated bits, so we don't need to do the additional
magic explicitly.

llvm-svn: 117461
 2010-10-27 17:52:51 +00:00
Owen Anderson
32da0e6e3f Tests for NEON encoding of vabs and vqabs. 
llvm-svn: 117460
 2010-10-27 17:50:07 +00:00
Owen Anderson
c8757eb137 Add correct NEON encodings for vsli and vsri. 
llvm-svn: 117459
 2010-10-27 17:40:08 +00:00
Owen Anderson
e64b7187a9 Add correct NEON encodings for vsra and vrsra. 
llvm-svn: 117458
 2010-10-27 17:29:29 +00:00
Jim Grosbach
09eab01a37 The immediate operands of an LDRi12 instruction doesn't need the addrmode2 
encoding tricks. Handle the 'imm doesn't fit in the insn' case.

llvm-svn: 117454
 2010-10-27 16:50:31 +00:00
Jim Grosbach
ddd67f8e88 Formatting. 
llvm-svn: 117453
 2010-10-27 16:30:18 +00:00
Rafael Espindola
58a0ea80a4 Symbols defined as the difference of other two end up in the ABS section. 
llvm-svn: 117451
 2010-10-27 16:04:30 +00:00
Rafael Espindola
23d05a8675 Add support for the .symver directive. This is really ugly, but most of it is 
contained in the ELF object writer.

llvm-svn: 117448
 2010-10-27 15:18:17 +00:00
Rafael Espindola
f5b4013598 Move more logic to isInSymtab and simplify. 
llvm-svn: 117447
 2010-10-27 14:44:52 +00:00
Mikhail Glushenkov
df4eb2e516 80-col violation. 
llvm-svn: 117443
 2010-10-27 09:09:10 +00:00
Mikhail Glushenkov
5eeaebe9b8 Remove try/catch(...) from Win32/Signals.inc. 
catch(...) is used in Win32/Signals.inc for catching Win32 structured
exceptions, but according to [1], this is wrong.

We can't simply change try/catch to __try/__finally, since this syntax is not
supported by MinGW. We can use __try/__finally on MSVC and __try1/__except1
macros on MinGW [2], but I think that that solution obfuscates the code too
much.

The use of try/catch(...) in Signals.inc makes it impossible to link
MinGW-compiled libSystem with llvm-gcc compiled executables. I propose that we
just remove try/catch(...) from Signals.inc, since the meaning of the code won't
change.

[1] http://members.cox.net/doug_web/eh.htm
[2] http://article.gmane.org/gmane.comp.compilers.llvm.cvs/81315

llvm-svn: 117442
 2010-10-27 09:09:04 +00:00
Mikhail Glushenkov
64c0814208 It is confusing to call a random-access iterator 'InputIterator'. 
llvm-svn: 117441
 2010-10-27 07:39:54 +00:00
Mikhail Glushenkov
a52646c12e Trailing whitespace. 
llvm-svn: 117440
 2010-10-27 07:39:48 +00:00
Kevin Enderby
74a2614673 Yet another tweak to X86 instructions to add ud2a as an alias to ud2 
(still to add ud2b).

llvm-svn: 117435
 2010-10-27 03:01:02 +00:00
Kevin Enderby
d22f3b9de7 Another tweak to X86 instructions to add the missing flex instruction (without 
the wait prefix).

llvm-svn: 117434
 2010-10-27 02:53:04 +00:00
Kevin Enderby
e812b356cc Tweaks to X86 instructions to allow the 'w' suffix in places it makes 
sense, when the instruction takes the 16-bit ax register or m16 memory
location.  These changes to llvm-mc matches what the darwin assembler
allows for these instructions.  Done differently than in r117031 that
caused a valgrind error which was later reverted.

llvm-svn: 117433
 2010-10-27 02:32:19 +00:00
Jim Grosbach
5ccda16fe2 LDRi12 machine instructions handle negative offset operands normally (simple 
integer values), not with the addrmode2 encoding.

llvm-svn: 117429
 2010-10-27 01:19:41 +00:00
Bill Wendling
bead915338 Random cleanups and format changes. 
llvm-svn: 117428
 2010-10-27 01:07:41 +00:00
Kevin Enderby
d5235bb45c Added some aliases to the fcomip and fucompi Intel instructions. So that llvm-mc 
will accept versions that the darwin assembler allows.  Forms ending in "pi" and
forms without all the operands.

llvm-svn: 117427
 2010-10-27 00:59:28 +00:00
Jakob Stoklund Olesen
66180b2c06 Handle critical loop predecessors by making both inside and outside registers 
live out.

This doesn't prevent us from inserting a loop preheader later on, if that is
better.

llvm-svn: 117424
 2010-10-27 00:39:07 +00:00