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66182 Commits

Author SHA1 Message Date
Rafael Espindola f8537165bd 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 5e7cb5fc27 Added the x86 instruction ud2b (2nd official undefined instruction). 
llvm-svn: 117485
 2010-10-27 20:46:49 +00:00
Jim Grosbach f4ea7084c5 JIT imm12 encoding for constant pool entry references. 
llvm-svn: 117483
 2010-10-27 20:39:40 +00:00
Bob Wilson c7334a146e 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 24c8b04d5f 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 333b0a9e74 ARM JIT fix for LDRi12 and company. 
llvm-svn: 117478
 2010-10-27 19:55:59 +00:00
Benjamin Kramer 14807270be Replace pointer arithmetic with StringRef::substr. 
llvm-svn: 117477
 2010-10-27 19:53:52 +00:00
Owen Anderson 40d24a4abf Provide correct NEON encodings for vdup. 
llvm-svn: 117475
 2010-10-27 19:25:54 +00:00
Michael J. Spencer 7db918f1e9 x86-Win32: Switch ftol2 calling convention from stdcall to C. 
llvm-svn: 117474
 2010-10-27 18:52:38 +00:00
Michael J. Spencer 0f83d96852 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 fbdab0d633 Fix whitespace. 
llvm-svn: 117472
 2010-10-27 18:52:20 +00:00
Rafael Espindola 095fa9e5cc Set default type and flags for .init and .fini. 
llvm-svn: 117471
 2010-10-27 18:45:20 +00:00
Owen Anderson fbdeab911a Tests for NEON encoding of vmovl, vmovn, vqmovn, and vqmovun. 
llvm-svn: 117469
 2010-10-27 18:17:12 +00:00
Devang Patel d4efc4d26f Give a name to nameless argument. 
llvm-svn: 117468
 2010-10-27 18:08:31 +00:00
Owen Anderson 5fa98baef7 Tests for NEON encoding of vcls, vclz, and vcnt. 
llvm-svn: 117466
 2010-10-27 18:05:25 +00:00
Owen Anderson 6b5af599c0 Tests for NEON encoding of vneg and vqneg. 
llvm-svn: 117463
 2010-10-27 17:57:26 +00:00
Rafael Espindola 26496e6835 Produce an error for an invalid use of .symver. 
llvm-svn: 117462
 2010-10-27 17:56:18 +00:00
Jim Grosbach ba1c6cd62f 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 1e5eb98ed8 Tests for NEON encoding of vabs and vqabs. 
llvm-svn: 117460
 2010-10-27 17:50:07 +00:00
Owen Anderson 8576a42cf3 Add correct NEON encodings for vsli and vsri. 
llvm-svn: 117459
 2010-10-27 17:40:08 +00:00
Owen Anderson d7e8135e1e Add correct NEON encodings for vsra and vrsra. 
llvm-svn: 117458
 2010-10-27 17:29:29 +00:00
Jim Grosbach 8bf1483a3d 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 e4992c88a4 Formatting. 
llvm-svn: 117453
 2010-10-27 16:30:18 +00:00
Rafael Espindola cc1b168ef6 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 eb0c2c170d 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 a5efd6a27c Move more logic to isInSymtab and simplify. 
llvm-svn: 117447
 2010-10-27 14:44:52 +00:00
Mikhail Glushenkov 258b8e1dc8 80-col violation. 
llvm-svn: 117443
 2010-10-27 09:09:10 +00:00
Mikhail Glushenkov 32acd741d2 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 083981170f It is confusing to call a random-access iterator 'InputIterator'. 
llvm-svn: 117441
 2010-10-27 07:39:54 +00:00
Mikhail Glushenkov b809748595 Trailing whitespace. 
llvm-svn: 117440
 2010-10-27 07:39:48 +00:00
Kevin Enderby 9ad2166899 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 20b021c970 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 a1917c7555 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 9d2d1f0f00 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 6bbe0912c3 Random cleanups and format changes. 
llvm-svn: 117428
 2010-10-27 01:07:41 +00:00
Kevin Enderby ba985d9dd5 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 79e1407c11 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
Jakob Stoklund Olesen 795ed98180 Compute critical loop predecessors in the same way as critical loop exits. 
Critical edges going into a loop are not as bad as critical exits. We can handle
them by splitting the critical edge, or by having both inside and outside
registers live out of the predecessor.

llvm-svn: 117423
 2010-10-27 00:39:05 +00:00
Jakob Stoklund Olesen 0e7a011a00 Physical registers trivially have multiple connected components all the time. 
Only virtuals should be requires to be connected.

llvm-svn: 117422
 2010-10-27 00:39:01 +00:00
Jim Grosbach 2577b2e8b1 One more spot where the new arm mode LDR instruction representation 
doesn't need the additional addrmode2 register operand. Missed it the first
time around.

llvm-svn: 117421
 2010-10-27 00:38:16 +00:00
Wesley Peck e9b429e96f Adding disassembler to the MicroBlaze backend. 
llvm-svn: 117420
 2010-10-27 00:23:01 +00:00
Jim Grosbach 5a7c715470 Split ARM::LDRB into LDRBi12 and LDRBrs. Adjust accordingly. Continuing on 
rdar://8477752.

llvm-svn: 117419
 2010-10-27 00:19:44 +00:00
Jim Grosbach a92801b695 Since I parameterized this bit, I should probably actually use said parameter. 
llvm-svn: 117418
 2010-10-26 23:58:04 +00:00
Dan Gohman 5faac39061 Enable clang autocompletion by default. 
llvm-svn: 117415
 2010-10-26 23:24:54 +00:00
Dale Johannesen e660f4d072 Use a MemIntrinsicSDNode for ISD::PREFETCH, which touches 
memory, so a MachineMemOperand is useful (not propagated
into the MachineInstr yet).  No functional change except
for dump output.

llvm-svn: 117413
 2010-10-26 23:11:10 +00:00
Andrew Trick 5f88cc34e1 Remove the vector of live vregs. I thought we would need to track 
them, but hopefully we won't. And this is not the right data structure
to do it anyway.

llvm-svn: 117412
 2010-10-26 22:58:24 +00:00
Owen Anderson 825b2d1946 Add correct NEON encodings for vqshl, vqshrn, vqshrun, vqrshl, vqshrn, and vqrshrun. 
llvm-svn: 117411
 2010-10-26 22:50:46 +00:00
Jim Grosbach 1e4d9a17c2 First part of refactoring ARM addrmode2 (load/store) instructions to be more 
explicit about the operands. Split out the different variants into separate
instructions. This gives us the ability to, among other things, assign
different scheduling itineraries to the variants. rdar://8477752.

llvm-svn: 117409
 2010-10-26 22:37:02 +00:00
Jakob Stoklund Olesen e4f3317cda After splitting, compute connected components of all new registers, not just for 
the remainder register.

Example:

bb0:
  x = 1
bb1:
  use(x)
  ...
  x = 2
  jump bb1

When x is isolated in bb1, the inner part breaks into two components, x1 and x2:

bb0:
  x0 = 1
bb1:
  x1 = x0
  use(x1)
  ...
  x2 = 2
  x0 = x2
  jump bb1

llvm-svn: 117408
 2010-10-26 22:36:09 +00:00
Jakob Stoklund Olesen 260fa289df Verify that live intervals are connected. If there are multiple connected 
components, each should get its own virtual register.

llvm-svn: 117407
 2010-10-26 22:36:07 +00:00