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Author SHA1 Message Date
Nick Lewycky
e020632f7e This transform is not safe. Thanks to Eli for pointing that out! 
llvm-svn: 137575
 2011-08-14 04:51:49 +00:00
Nick Lewycky
0326303a7a Don't attempt to add 'nsw' when intermediate instructions had no such guarantee. 
llvm-svn: 137572
 2011-08-14 03:41:33 +00:00
Nick Lewycky
b6a9488190 Teach instcombine to preserve the nsw bit by doing an after-the-fact analysis 
when combining add and sub instructions. Patch by Pranav Bhandarkar!

llvm-svn: 137570
 2011-08-14 01:45:19 +00:00
Eli Friedman
1dc4fa369c Fix test. 
llvm-svn: 137556
 2011-08-13 17:06:34 +00:00
Bob Wilson
90799621b3 Expand VMOVQQQQ pseudo instructions. 
Apparently we never added code to expand these pseudo instructions, and in
over a year, no one has noticed.  Our register allocator must be awesome!

llvm-svn: 137551
 2011-08-13 05:14:55 +00:00
Eli Friedman
baf0f69f9a Move "atomic" and "volatile" designations on instructions after the opcode 
of the instruction.

Note that this change affects the existing non-atomic load and store
instructions; the parser now accepts both forms, and the change is noted
in the release notes.

llvm-svn: 137527
 2011-08-12 22:50:01 +00:00
Bruno Cardoso Lopes
2d100ca13c The VPERM2F128 is a AVX instruction which permutes between two 256-bit 
vectors. It operates on 128-bit elements instead of regular scalar
types. Recognize shuffles that are suitable for VPERM2F128 and teach
the x86 legalizer how to handle them.

llvm-svn: 137519
 2011-08-12 21:48:26 +00:00
Akira Hatanaka
c9c0190cbe Define unaligned load and store. 
llvm-svn: 137515
 2011-08-12 21:30:06 +00:00
Owen Anderson
2ea55a0881 Fix some remaining issues with decoding ARM-mode memory instructions, and add another batch of tests. 
llvm-svn: 137502
 2011-08-12 20:36:11 +00:00
Owen Anderson
9d85cab3d5 Port over the basic ARM encodings test file to a decoding test file. Greatly increases our test coverage of basic ARM-mode instructions. 
llvm-svn: 137495
 2011-08-12 19:42:45 +00:00
Akira Hatanaka
6caf61a6ac Test case for 137484 
llvm-svn: 137486
 2011-08-12 18:12:06 +00:00
Jim Grosbach
d154fc4c8f Tidy up formatting. 
llvm-svn: 137471
 2011-08-12 17:43:31 +00:00
Jim Grosbach
1cfe8c24d5 Tidy up formatting. 
llvm-svn: 137464
 2011-08-12 17:01:02 +00:00
Benjamin Kramer
e404b3e2d1 MachOWriter: Don't crash on fixups with arithmetic, emit a relocation instead. This matches what as does. 
llvm-svn: 137414
 2011-08-12 01:51:29 +00:00
Dan Gohman
c188a47b62 Don't convert objc_autoreleaseReturnValue to objc_autorelease if the result 
is returned through a bitcast.

llvm-svn: 137402
 2011-08-12 00:36:31 +00:00
Dan Gohman
783fdc6375 Don't let arbitrary calls disrupt nested retain+release pairs if 
the retains and releases all use the same SSA pointer value.

Also, don't let CFG hazards disrupt nested retain+release pair
optimizations.

llvm-svn: 137399
 2011-08-12 00:26:31 +00:00
Jim Grosbach
ade39d38e1 Clean up formatting a bit. 
llvm-svn: 137393
 2011-08-11 23:57:17 +00:00
Jim Grosbach
d17df06881 ARM vector compare to zero instruction assembly parsing support. 
llvm-svn: 137389
 2011-08-11 23:51:13 +00:00
Andrew Trick
d251d23191 A slew of unit tests for the recent LoopInfo::updateUnloop feature 
checked in at r137276 and r137341.

llvm-svn: 137385
 2011-08-11 23:38:09 +00:00
Andrew Trick
5a5a5ebe68 Allow loop unrolling to get known trip counts from ScalarEvolution. 
SCEV unrolling can unroll loops with arbitrary induction variables. It
is a prerequisite for -disable-iv-rewrite performance. It is also
easily handles loops of arbitrary structure including multiple exits
and is generally more robust.

This is under a temporary option to avoid affecting default
behavior for the next couple of weeks. It is needed so that I can
checkin unit tests for updateUnloop.

llvm-svn: 137384
 2011-08-11 23:36:16 +00:00
Akira Hatanaka
b787f8a8a5 Enclose directive .cprestore with .set macro and nomacro to silence assembler 
warning. 

llvm-svn: 137378
 2011-08-11 22:42:31 +00:00
Jim Grosbach
41ef68eb17 Fix tests per now-correct encoding as of r137371. 
llvm-svn: 137376
 2011-08-11 22:31:48 +00:00
Jim Grosbach
edefbb31c3 ARM STRT assembly parsing and encoding. 
llvm-svn: 137372
 2011-08-11 22:18:00 +00:00
Jim Grosbach
ed8a320007 ARM load shifted register pre-index fix shift value asm parser encoding. 
llvm-svn: 137367
 2011-08-11 22:05:09 +00:00
Bruno Cardoso Lopes
328a6a980b Add a dag combine to xform 256-bit shuffles into simple vector 
inserts and extracts. This simple combine makes us generate only 1
instruction instead of 11 in the v8 case.

llvm-svn: 137362
 2011-08-11 21:50:44 +00:00
Bruno Cardoso Lopes
884d8b9cb5 Fix the test added by Nadav in r137308. Make it more strict: 
1) check for the "v" version of movaps
2) add a couple of CHECK-NOT to guarantee the behavior
3) move to a more appropriate test file

llvm-svn: 137361
 2011-08-11 21:50:35 +00:00
Jim Grosbach
609316e481 ARM STRHT assembly parsing and encoding. 
llvm-svn: 137358
 2011-08-11 21:39:41 +00:00
Jim Grosbach
5c12d41c95 ARM STRH assembly parsing and encoding. 
llvm-svn: 137353
 2011-08-11 21:17:22 +00:00
Owen Anderson
4618d77bcd Fix decoding for indexed STRB and LDRB. Fixes <rdar://problem/9926161>. 
llvm-svn: 137347
 2011-08-11 20:47:56 +00:00
Owen Anderson
1ec4fcb5d3 Improve operand validation for Thumb2 addressing modes. 
llvm-svn: 137344
 2011-08-11 20:40:40 +00:00
Jim Grosbach
81b2835f83 ARM STRD assembly parsing and encoding. 
llvm-svn: 137342
 2011-08-11 20:28:23 +00:00
Owen Anderson
73e7d34732 Continue to tighten decoding by performing more operand validation. 
llvm-svn: 137340
 2011-08-11 20:21:46 +00:00
Jim Grosbach
bfc85134c2 ARM STRBT assembly parsing and encoding. 
llvm-svn: 137337
 2011-08-11 20:04:56 +00:00
Jim Grosbach
87f0f921b5 Add FIXME. 
llvm-svn: 137336
 2011-08-11 19:43:42 +00:00
Jim Grosbach
a6572a1201 ARM STRB assembly parsing and encoding tests. 
llvm-svn: 137335
 2011-08-11 19:42:58 +00:00
Jim Grosbach
9673dc9e01 Fix a copy/paste error so that LDRB(register) actually gets tested. 
llvm-svn: 137333
 2011-08-11 19:34:23 +00:00
Jim Grosbach
986a3eb0b2 ARM STR(register) assembly parsing and encoding tests. 
llvm-svn: 137332
 2011-08-11 19:26:17 +00:00
Jim Grosbach
e6bd3a1ab8 ARM STR(immediate) assembly parsing and encoding. 
llvm-svn: 137331
 2011-08-11 19:22:40 +00:00
Owen Anderson
63ccfdccd1 Tighten decoding of addrmode2 instructions to reject more UNPREDICTABLE cases. 
llvm-svn: 137325
 2011-08-11 19:00:18 +00:00
Bruno Cardoso Lopes
38d4afa02f Fix PR10492 by teaching MOVHLPS and MOVLPS mask matching to be more strict. 
llvm-svn: 137324
 2011-08-11 18:59:13 +00:00
Owen Anderson
decc5fcced Tighten operand decoding of addrmode2 instruction. The offset register cannot be PC. 
llvm-svn: 137323
 2011-08-11 18:55:42 +00:00
Owen Anderson
707fcaca0e Correct immediate range for shifter operands. Patch by James Molloy, with additional encoding fixes added by me. 
llvm-svn: 137322
 2011-08-11 18:41:59 +00:00
Owen Anderson
8d6b9f063f Improve error checking in the new ARM disassembler. Patch by James Molloy. 
llvm-svn: 137320
 2011-08-11 18:24:51 +00:00
Jim Grosbach
9717a9c0d3 ARM push of a single register encodes as pre-indexed STR. 
Per the ARM ARM, a 'push' of a single register encodes as an STR,
not an STM.

llvm-svn: 137318
 2011-08-11 18:07:11 +00:00
Jim Grosbach
abaaf4513f ARM pop of a single register encodes as post-indexed LDR. 
Per the ARM ARM, a 'pop' of a single register encodes as an LDR,
not an LDM.

llvm-svn: 137316
 2011-08-11 17:35:48 +00:00
Nadav Rotem
de1b485f3f [AVX] If the data which is going to be saved is already in two XMM registers 
(for example, after integer operation), do not pack the registers into a YMM
before saving. Its better to save as two XMM registers.

Before:
                vinsertf128         $1, %xmm3, %ymm0, %ymm3
                vinsertf128         $0, %xmm1, %ymm3, %ymm1
                vmovaps              %ymm1, 416(%rsp)

After:
                vmovaps              %xmm3, 416+16(%rsp)
                vmovaps              %xmm1, 416(%rsp)

llvm-svn: 137308
 2011-08-11 16:41:21 +00:00
Chris Lattner
3ae8704c4f add missing colon, thanks peter. 
llvm-svn: 137306
 2011-08-11 16:15:10 +00:00
Chris Lattner
575057916a fix PR10605 / rdar://9930964 by adding a pretty scary missed check. 
It's somewhat surprising anything works without this.  Before we would
compile the testcase into:

test:                                   # @test
	movl	$4, 8(%rdi)
	movl	8(%rdi), %eax
	orl	%esi, %eax
	cmpl	$32, %edx
	movl	%eax, -4(%rsp)          # 4-byte Spill
	je	.LBB0_2

now we produce:

test:                                   # @test
	movl	8(%rdi), %eax
	movl	$4, 8(%rdi)
	orl	%esi, %eax
	cmpl	$32, %edx
	movl	%eax, -4(%rsp)          # 4-byte Spill
	je	.LBB0_2
llvm-svn: 137303
 2011-08-11 06:26:54 +00:00
Bruno Cardoso Lopes
8674ddf55a Splats for v8i32/v8f32 can be handled by VPERMILPSY. This was causing 
infinite recursive calls in legalize. Fix PR10562

llvm-svn: 137296
 2011-08-11 02:49:44 +00:00
Bruno Cardoso Lopes
954ac403c7 Use the splat index to generate the desired shuffle. Otherwise we 
could only get undefs and the vector shuffle becomes an undef,
generating wrong code.

llvm-svn: 137295
 2011-08-11 02:49:41 +00:00
Eli Friedman
17bd9e5d7c Fix X86TargetLowering::LowerExternalSymbol so that it actually works in non-trivial cases. This hasn't been an issue before because the function isn't normally called (but apparently is used to generate a tail-call to sin() on ELF x86-32 with PIC and SSE2). 
Fixes PR9693.

llvm-svn: 137292
 2011-08-11 01:48:05 +00:00
Jim Grosbach
eb96dd6c99 ARM tests for LDRSHT assembly parsing and encoding. 
llvm-svn: 137274
 2011-08-10 23:18:30 +00:00
Jim Grosbach
e2cc6866d1 ARM tests for LDRSH assembly parsing and encoding. 
llvm-svn: 137272
 2011-08-10 23:12:25 +00:00
Jim Grosbach
f65a625648 ARM tests for LDRSBT assembly parsing and encoding. 
llvm-svn: 137271
 2011-08-10 23:08:56 +00:00
Jim Grosbach
e22ad37645 ARM tests for LDRSB assembly parsing and encoding. 
llvm-svn: 137270
 2011-08-10 23:06:44 +00:00
Jim Grosbach
f291232aa1 Add FIXME. 
llvm-svn: 137265
 2011-08-10 22:56:43 +00:00
Jim Grosbach
5c5f1c8305 ARM tests for LDRHT assembly parsing and encoding. 
llvm-svn: 137263
 2011-08-10 22:55:38 +00:00
NAKAMURA Takumi
5d316f7632 test/CodeGen/X86/opt-shuff-tstore.ll: Add explicit -mtriple=x86_64-linux. 
llvm-svn: 137262
 2011-08-10 22:52:48 +00:00
Jim Grosbach
7c1596bf26 ARM tests for LDRH(register) assembly parsing and encoding. 
llvm-svn: 137261
 2011-08-10 22:45:42 +00:00
Jim Grosbach
e0ccd6b34e ARM LDRH(immediate) assembly parsing and encoding support. 
llvm-svn: 137260
 2011-08-10 22:42:16 +00:00
Jim Grosbach
e0c10a6d0c Add FIXME 
llvm-svn: 137258
 2011-08-10 22:20:38 +00:00
Jim Grosbach
4ad2dc8bb2 ARM LDRD(register) assembly parsing and encoding. 
Add support for literal encoding of #-0 along the way.

llvm-svn: 137254
 2011-08-10 21:56:18 +00:00
Devang Patel
393d6e1fd0 While extending definition range of a debug variable, consult lexical scopes also. There is no point extending debug variable out side its lexical block. This provides 6x compile time speedup in some cases. 
llvm-svn: 137250
 2011-08-10 21:25:34 +00:00
Jim Grosbach
bbef0044c8 ARM LDRD(immediate) assembly parsing and encoding support. 
llvm-svn: 137244
 2011-08-10 20:29:19 +00:00
Nadav Rotem
1b3075c0ab Fix the test. Add cpu target. 
llvm-svn: 137241
 2011-08-10 19:49:19 +00:00
Nadav Rotem
4a8d78d24a When performing a truncating store, it is sometimes possible to rearrange the 
data in-register prior to saving to memory.  When we reorder the data in memory
we prevent the need to save multiple scalars to memory, making a single regular
store.

llvm-svn: 137238
 2011-08-10 19:30:14 +00:00
Owen Anderson
0fde7a84ee Add initial support for decoding NEON instructions in Thumb2 mode. 
llvm-svn: 137236
 2011-08-10 19:01:10 +00:00
Bruno Cardoso Lopes
565ab1542a The following X86 pattern is incorrect: 
def : Pat<(X86Movss VR128:$src1,
                   (bc_v4i32 (v2i64 (load addr:$src2)))),
          (MOVLPSrm VR128:$src1, addr:$src2)>;
This matches a MOVSS dag with a MOVLPS instruction. However, MOVSS will replace only the low 32 bits of the register, while the MOVLPS instruction will replace the low 64 bits. A testcase is added and illustrates the bug and also modified the one that was already present. Patch by Tanya Lattner.

llvm-svn: 137227
 2011-08-10 17:45:17 +00:00
Rafael Espindola
45cd7316b5 Add support for the R and Q constraints. 
llvm-svn: 137217
 2011-08-10 16:26:42 +00:00
Andrew Trick
4a938add93 Invoke SimplifyIndVar when we partially unroll a loop. Fixes PR10534. 
llvm-svn: 137203
 2011-08-10 04:29:49 +00:00
Bruno Cardoso Lopes
4a435a361d Fix a bug in vpermilps mask checking. Fix PR10560 
llvm-svn: 137194
 2011-08-10 01:54:17 +00:00
Peter Collingbourne
7f188438d5 Remove the build_unwind function from the OCaml bindings. 
llvm-svn: 137193
 2011-08-10 01:10:17 +00:00
Andrew Trick
3ed0cd3cb6 Fix the LoopUnroller to handle nontrivial loops and partial unrolling. 
These are not individual bug fixes. I had to rewrite a good chunk of
the unroller to make it sane. I think it was getting lucky on trivial
completely unrolled loops with no early exits. I included some fairly
simple unit tests for partial unrolling. I didn't do much stress
testing, so it may not be perfect, but should be usable now.

llvm-svn: 137190
 2011-08-10 00:28:10 +00:00
Owen Anderson
87b5ce880a Push GPRnopc through a large number of instruction definitions to tighten operand decoding. 
llvm-svn: 137189
 2011-08-10 00:03:03 +00:00
Owen Anderson
b717d71aa1 Tighten operand checking of register-shifted-register operands. 
llvm-svn: 137180
 2011-08-09 23:33:27 +00:00
Bruno Cardoso Lopes
9a695724bd Add 256-bit support for v8i32, v4i64 and v4f64 ISD::SELECT. Fix PR10556 
llvm-svn: 137179
 2011-08-09 23:27:13 +00:00
Owen Anderson
62faf296dd Tighten operand checking on memory barrier instructions. 
llvm-svn: 137176
 2011-08-09 23:25:42 +00:00
Owen Anderson
869ce85500 Tighten operand checking on CPS instructions. 
llvm-svn: 137172
 2011-08-09 23:05:39 +00:00
Owen Anderson
8ad37f68a2 Create a new register class for the set of all GPRs except the PC. Use it to tighten our decoding of BFI. 
llvm-svn: 137168
 2011-08-09 22:48:45 +00:00
Bruno Cardoso Lopes
7461b930f3 Add v16i16 and v32i8 store patterns 
llvm-svn: 137166
 2011-08-09 22:39:53 +00:00
Bruno Cardoso Lopes
028c6aa951 Use fp unpack instructions to unpack int types. Until we have AVX2, this 
is the best we can do for these patterns. This fix PR10554.

llvm-svn: 137161
 2011-08-09 22:18:37 +00:00
Eli Friedman
44fd5b2b59 Fix a couple ridiculous copy-paste errors. rdar://9914773 . 
llvm-svn: 137160
 2011-08-09 22:17:39 +00:00
Benjamin Kramer
ca48bdfd5b ARM Disassembler: sign extend branch immediates. 
Not sure about BLXi, but this is what the old disassembler did.

llvm-svn: 137156
 2011-08-09 22:02:50 +00:00
Owen Anderson
2aa4c7e391 Tighten Thumb1 branch predicate decoding. 
llvm-svn: 137146
 2011-08-09 21:07:45 +00:00
Owen Anderson
ffe1c55752 Replace the existing ARM disassembler with a new one based on the FixedLenDecoderEmitter. 
This new disassembler can correctly decode all the testcases that the old one did, though
some "expected failure" testcases are XFAIL'd for now because it is not (yet) as strict in
operand checking as the old one was.

llvm-svn: 137144
 2011-08-09 20:55:18 +00:00
Bill Wendling
250ea7930e Revert r137134. It breaks some code as Eli pointed out. 
llvm-svn: 137135
 2011-08-09 18:56:35 +00:00
Bill Wendling
ca256c0d2d Print out the variable declaration only if it is a declaration. Otherwise, a 
'static' variable will be emitted twice.
PR10081

llvm-svn: 137134
 2011-08-09 18:31:50 +00:00
Jakob Stoklund Olesen
e43aca1c39 Inflate register classes after coalescing. 
Coalescing can remove copy-like instructions with sub-register operands
that constrained the register class.  Examples are:

  x86: GR32_ABCD:sub_8bit_hi -> GR32
  arm: DPR_VFP2:ssub0 -> DPR

Recompute the register class of any virtual registers that are used by
less instructions after coalescing.

This affects code generation for the Cortex-A8 where we use NEON
instructions for f32 operations, c.f. fp_convert.ll:

  vadd.f32  d16, d1, d0
  vcvt.s32.f32  d0, d16

The register allocator is now free to use d16 for the temporary, and
that comes first in the allocation order because it doesn't interfere
with any s-registers.

llvm-svn: 137133
 2011-08-09 18:19:41 +00:00
Bruno Cardoso Lopes
633400ee00 Reapply a more appropriate solution than in r137114. AVX supports 
v4f64 = sitofp v4i32. This fix PR10559.
Also add support for v4i32 = fptosi v4f64.

llvm-svn: 137128
 2011-08-09 17:39:13 +00:00
Bruno Cardoso Lopes
1962a341d8 Revert r137114 
llvm-svn: 137127
 2011-08-09 17:39:01 +00:00
Justin Holewinski
021ab783b7 PTX: Add initial support for device function calls 
- Calls are supported on SM 2.0+ for function with no return values

llvm-svn: 137125
 2011-08-09 17:36:31 +00:00
Bruno Cardoso Lopes
5dac86dac6 Handle sitofp between v4f64 <- v4i32. Fix PR10559 
llvm-svn: 137114
 2011-08-09 05:48:01 +00:00
Bruno Cardoso Lopes
d521431558 Add support for avx vector fextend 
llvm-svn: 137105
 2011-08-09 03:04:29 +00:00
Bruno Cardoso Lopes
81534df169 Rename and tidy up tests 
llvm-svn: 137103
 2011-08-09 03:04:23 +00:00
Bruno Cardoso Lopes
1025d1eb3b Add two patterns to match special vmovss and vmovsd cases. Also fix 
the patterns already there to be more strict regarding the predicate.
This fixes PR10558

llvm-svn: 137100
 2011-08-09 01:43:09 +00:00
Bruno Cardoso Lopes
d7eac41193 Make LowerVSETCC aware of AVX types and add patterns to match them. 
llvm-svn: 137090
 2011-08-09 00:46:57 +00:00
Dan Gohman
a716e5c67e Tidy up these testcases to look more like real code does. 
llvm-svn: 137085
 2011-08-09 00:33:11 +00:00
Jim Grosbach
d6da18cf19 ARM parsing and encoding for LDRBT instruction. 
Fix the instruction representation to correctly only allow post-indexed form.
Add tests.

llvm-svn: 137074
 2011-08-08 23:28:47 +00:00
Jim Grosbach
dce26073db ARM parsing and encoding for LDRB instruction. 
llvm-svn: 137071
 2011-08-08 22:37:06 +00:00
Jim Grosbach
1dbe50798e Add FIXME. 
llvm-svn: 137070
 2011-08-08 22:11:33 +00:00
Bruno Cardoso Lopes
d8534855ff Add support for several vector shifts operations while in AVX mode. Fix PR10581 
llvm-svn: 137067
 2011-08-08 21:31:08 +00:00
Eli Friedman
7a34419c6f Fix up the patterns for SXTB, SXTH, UXTB, and UXTH so that they are correctly active without HasT2ExtractPack. PR10611. 
llvm-svn: 137061
 2011-08-08 19:49:37 +00:00
Jakob Stoklund Olesen
85931574b0 Don't clobber pending ST regs when FP regs are killed. 
X86FloatingPoint keeps track of pending ST registers for an upcoming
inline asm instruction with fixed stack register constraints.  It does
this by remembering which FP register holds the value that should appear
at a fixed stack position for the inline asm.

When that FP register is killed before the inline asm, make sure to
duplicate it to a scratch register, so the ST register still has a live
FP reference.

This could happen when the same FP register was copied to two ST
registers, or when a spill instruction is inserted between the ST copy
and the inline asm.

This fixes PR10602.

llvm-svn: 137050
 2011-08-08 17:15:43 +00:00
Andrew Trick
a7fc7983d4 Made SCEV's UDiv expressions more canonical. When dividing a 
recurrence, the initial values low bits can sometimes be ignored.

To take advantage of this, added FoldIVUser to IndVarSimplify to fold
an IV operand into a udiv/lshr if the operator doesn't affect the
result.

-indvars -disable-iv-rewrite now transforms

i = phi i4
i1 = i0 + 1
idx = i1 >> (2 or more)
i4 = i + 4

into

i = phi i4
idx = i0 >> ...
i4 = i + 4

llvm-svn: 137013
 2011-08-06 07:00:37 +00:00
Jim Grosbach
00c4316907 ARM load instruction shifted register index operands. 
Parsing and encoding for shifted index operands for load instructions.

llvm-svn: 136986
 2011-08-05 22:03:36 +00:00
Jim Grosbach
40a7e379c4 ARM indexed load assembly parsing and encoding. 
More parsing support for indexed loads. Fix pre-indexed with writeback
parsing for register offsets and handle basic post-indexed offsets.

llvm-svn: 136982
 2011-08-05 21:28:30 +00:00
Jim Grosbach
861430e0bb Add ARM LDR parsing tests. 
llvm-svn: 136977
 2011-08-05 20:33:39 +00:00
Devang Patel
e5379a1a5d We need to map DebugLoc. It leads to Fuction * (through subprogram entry node) which should be appropriately mapped. 
llvm-svn: 136910
 2011-08-04 20:02:18 +00:00
Devang Patel
17d9346546 Linke NamedMDNodes after linking global values as comment suggests. 
llvm-svn: 136909
 2011-08-04 19:44:28 +00:00
Rafael Espindola
b16f4e78a4 Fix the bitwidth of the remaining fields. 
llvm-svn: 136884
 2011-08-04 17:00:11 +00:00
Rafael Espindola
2da6e6a1d8 print st_shndx with the correct number of bits. 
llvm-svn: 136880
 2011-08-04 15:50:13 +00:00
Rafael Espindola
c1a076eeb1 print st_other with the correct number of bits. 
llvm-svn: 136877
 2011-08-04 15:38:19 +00:00
Rafael Espindola
368850841d print st_type with the correct number of bits. 
llvm-svn: 136875
 2011-08-04 15:24:00 +00:00
Rafael Espindola
e08bb3d50f Print st_bind with the correct number of bits. 
llvm-svn: 136874
 2011-08-04 15:10:35 +00:00
Rafael Espindola
865ab6cb05 Print r_sym with the correct number of bits. 
llvm-svn: 136873
 2011-08-04 14:48:27 +00:00
Rafael Espindola
f65dd30907 Print r_type with the correct number of bits. 
llvm-svn: 136872
 2011-08-04 14:39:30 +00:00
Rafael Espindola
c5a30ed713 Another counter goes decimal. 
llvm-svn: 136871
 2011-08-04 14:27:46 +00:00
Rafael Espindola
edfafcbfb0 Change anther counter to decimal. 
llvm-svn: 136870
 2011-08-04 14:01:03 +00:00
Rafael Espindola
3e8393e6f7 Don't print a counter in hex. 
llvm-svn: 136869
 2011-08-04 13:39:15 +00:00
Rafael Espindola
a910136fe2 Print all the bits in the addend. 
llvm-svn: 136867
 2011-08-04 13:00:24 +00:00
Jason W Kim
18ca6290c9 Fix http://llvm.org/bugs/show_bug.cgi?id=10568 
Move the reloc size assert into AsmBackend - where it is more apropos.

llvm-svn: 136855
 2011-08-04 00:38:45 +00:00
Bill Wendling
60e17f8212 Only access both operands of an INSERT_SUBVECTOR if it is an INSERT_SUBVECTOR. 
Fixes PR10527.

llvm-svn: 136853
 2011-08-04 00:32:58 +00:00
Jim Grosbach
767e9d16e6 ARM refactoring assembly parsing of memory address operands. 
Memory operand parsing is a bit haphazzard at the moment, in no small part
due to the even more haphazzard representations of memory operands in the .td
files. Start cleaning that all up, at least a bit.

The addressing modes in the .td files will be being simplified to not be
so monolithic, especially with regards to immediate vs. register offsets
and post-indexed addressing. addrmode3 is on its way with this patch, for
example.

This patch is foundational to enable going back to smaller incremental patches
for the individual memory referencing instructions themselves. It does just
enough to get the basics in place and handle the "make check" regression tests
we already have.

Follow-up work will be fleshing out the details and adding more robust test
cases for the individual instructions, starting with ARM mode and moving from
there into Thumb and Thumb2.

llvm-svn: 136845
 2011-08-03 23:50:40 +00:00
Benjamin Kramer
d93ac7d0b6 Remove underscore that's breaking linux buildbots. 
llvm-svn: 136833
 2011-08-03 23:13:01 +00:00
Jakub Staszak
9d083611d4 Use MachineBranchProbabilityInfo in If-Conversion instead of its own heuristics. 
llvm-svn: 136826
 2011-08-03 22:34:43 +00:00
Bill Wendling
fdea9930ac Remove the LowerSetJmp pass. It wasn't used effectively by any of the targets. 
This is some of my original LLVM code. *wipes tear*

llvm-svn: 136821
 2011-08-03 22:18:20 +00:00
Andrew Trick
bbb5c7b0aa SCEV: Use AssertingVH to catch dangling BasicBlock* when passes forget 
to notify SCEV of a change. Add forgetLoop in a couple of those places.

llvm-svn: 136797
 2011-08-03 18:32:11 +00:00
Jakob Stoklund Olesen
002075193b Handle IMPLICIT_DEF instructions in X86FloatingPoint. 
This fixes PR10575.

llvm-svn: 136787
 2011-08-03 16:33:19 +00:00
Chris Lattner
d4b0ee77a9 fix PR10286, a problem with the .ll printer handling block addresses that are out-of-scope. 
llvm-svn: 136768
 2011-08-03 06:15:41 +00:00
Devang Patel
99a2f0d98c Use byte offset, instead of element number, to access merged global. 
llvm-svn: 136759
 2011-08-03 01:25:46 +00:00
Nick Lewycky
82418c24b8 Fix logical error when detecting lifetime intrinsics. 
Don't replace a gep/bitcast with 'undef' because that will form a "free(undef)"
which in turn means "unreachable". What we wanted was a no-op. Instead, analyze
the whole tree and look for all the instructions we need to delete first, then
delete them second, not relying on the use_list to stay consistent.

llvm-svn: 136752
 2011-08-03 00:43:35 +00:00
Nick Lewycky
05fed81aa9 Teach InstCombine that lifetime intrincs aren't a real user on the result of a 
malloc call.

llvm-svn: 136732
 2011-08-02 22:08:01 +00:00
Nick Lewycky
2f04a6b411 Lifetime intrinsics on undef are dead. 
llvm-svn: 136722
 2011-08-02 21:19:27 +00:00
Rafael Espindola
cefc38659a Assume .cfi_startproc is the first thing in a function. If the function is 
externally visable, create a local symbol to use in the CFE. If not, use the
function label itself.

Fixes PR10420.

llvm-svn: 136716
 2011-08-02 20:24:22 +00:00
Bruno Cardoso Lopes
ac0984dc7e Make this kind of lowering to be supported by 256-bit instructions: 
shuffle (scalar_to_vector (load (ptr + 4))), undef, <0, 0, 0, 0>
To:
  shuffle (vload ptr)), undef, <1, 1, 1, 1>
Fix PR10494

llvm-svn: 136691
 2011-08-02 16:06:18 +00:00
Benjamin Kramer
5aff5a9498 Remove empty test. 
llvm-svn: 136675
 2011-08-02 02:47:45 +00:00
Owen Anderson
1d291c9425 Revert r136503 and r136480 in an effort to fix non-determinism in the llvm-gcc buildbots on i386. Devang is looking into the root cause. 
llvm-svn: 136674
 2011-08-02 02:23:42 +00:00
Bruno Cardoso Lopes
771876cade Add v4f64 -> v2f32 fp_round support. Also add a testcase to exercise 
the legalizer. This commit together with the two previous ones fixes
PR10495.

llvm-svn: 136654
 2011-08-01 21:54:09 +00:00
Bruno Cardoso Lopes
d3a5171087 Since vectors with all ones can't be created with a 256-bit instruction, 
avoid returning early for v8i32 types, which would only be valid for
vector with all zeros. Also split the handling of zeros and ones into separate
checking logic since they are handled differently. This fixes PR10547

llvm-svn: 136642
 2011-08-01 19:51:53 +00:00
Richard Osborne
2cd07cf351 Fix crash with varargs function with no named parameters. 
llvm-svn: 136623
 2011-08-01 16:45:59 +00:00
Rafael Espindola
92b7e5d6e5 Add a small gep optimization I noticed was missing while reading some IL. 
llvm-svn: 136585
 2011-07-31 04:43:41 +00:00
Benjamin Kramer
801c887f01 Remove InvalidateStructLayoutInfo from the ocaml bindings. 
llvm-svn: 136582
 2011-07-31 01:12:39 +00:00
Bill Wendling
57ddbb84ac Revert r136253, r136263, r136269, r136313, r136325, r136326, r136329, r136338, 
r136339, r136341, r136369, r136387, r136392, r136396, r136429, r136430, r136444,
r136445, r136446, r136253 pending review.

llvm-svn: 136556
 2011-07-30 05:42:50 +00:00
Jakob Stoklund Olesen
0f099a3c58 Revert "Don't check liveness of unallocatable registers." 
The ARM target depends on CPSR liveness being tracked after register
allocation.

llvm-svn: 136548
 2011-07-30 00:57:25 +00:00
Jakob Stoklund Olesen
a05b70241c Don't check liveness of unallocatable registers. 
This includes registers like EFLAGS and ST0-ST7. We don't check for
liveness issues in the verifier and scavenger because registers will
never be allocated from these classes.

While in SSA form, we do care about the liveness of unallocatable
unreserved registers. Liveness of EFLAGS and ST0 neds to be correct for
MachineDCE and MachineSinking.

llvm-svn: 136541
 2011-07-29 23:36:21 +00:00
Eric Christopher
96b31d5681 Add support for the 'Q' constraint. 
Fixes rdar://9866494

llvm-svn: 136523
 2011-07-29 21:18:58 +00:00
Jim Grosbach
9f0533c5d2 ARM SRS instruction parsing, diassembly and encoding support. 
Fix the instruction encoding for operands. Refactor mode to use explicit
instruction definitions per FIXME to be more consistent with loads/stores.
Fix disassembler accordingly. Add tests.

llvm-svn: 136509
 2011-07-29 20:26:09 +00:00
Devang Patel
3750561b36 Clean up debug info after reassociation. 
llvm-svn: 136480
 2011-07-29 19:00:35 +00:00
Jim Grosbach
1b69dbc796 ARM assembly parsing and encoding for RFE instruction. 
Fill in the missing fixed bits and the register operand bits of the instruction
encoding. Refactor the definition to make the mode explicit, which is
consistent with how loads and stores are normally represented and makes
parsing much easier. Add parsing aliases for pseudo-instruction variants.
Update the disassembler for the new representations. Add tests for parsing and
encoding.

llvm-svn: 136479
 2011-07-29 18:47:24 +00:00
Jim Grosbach
43e281bec4 ARM update tests for CPS instruction. 
llvm-svn: 136472
 2011-07-29 17:39:27 +00:00
Bruno Cardoso Lopes
871df895f4 Fix two tests that I crashed in the previous commits. The mask elts 
on the second half must be reindexed.

llvm-svn: 136454
 2011-07-29 02:05:28 +00:00
Bruno Cardoso Lopes
2b3d85d81c Match VPERMIL masks more strictly and update the target specific mask 
generation to always catch the weird cases.

llvm-svn: 136453
 2011-07-29 01:31:15 +00:00
Bruno Cardoso Lopes
473d982caf Add v8i32 and v4i64 vpermil patterns 
llvm-svn: 136451
 2011-07-29 01:31:07 +00:00
Jakob Stoklund Olesen
cc29034b4c Transfer implicit operands in NEONMoveFixPass. 
Later passes /are/ using this information when running the register
scavenger.

This fixes the second problem in PR10520.

llvm-svn: 136440
 2011-07-29 00:27:35 +00:00
Jakob Stoklund Olesen
f97f492104 Add -verify-arm-pseudo-expand. 
This hidden llc option runs the machine code verifier after expanding
ARM pseudo-instructions, but before if-conversion.

The machine code verifier is much better at pointing out liveness errors
that can trip up the register scavenger.

llvm-svn: 136439
 2011-07-29 00:27:32 +00:00
Eli Friedman
a07aa98eff Make sure to correctly clear the exact/nuw/nsw flags off of shifts when they are combined together. <rdar://problem/9859829> 
llvm-svn: 136435
 2011-07-29 00:18:19 +00:00
Jim Grosbach
666e97a0ce CBZ/CBNZ are Thumb2 only. No need for ARM mode tests for them. 
llvm-svn: 136408
 2011-07-28 21:59:38 +00:00
Jim Grosbach
01d878a4ea ARM assembly parsing and encoding for BLX (immediate). 
Add parsing support for BLX (immediate). Since the register operand version is
predicated and the label operand version is not, we have to use some special
handling to get the operand list right for matching.

llvm-svn: 136406
 2011-07-28 21:57:55 +00:00
Jakob Stoklund Olesen
5f429460ba Handle REG_SEQUENCE with implicitly defined operands. 
Code like that would only be produced by bugpoint, but we should still
handle it correctly.

When a register is defined by a REG_SEQUENCE of undefs, the register
itself is undef. Previously, we would create a register with uses but no
defs.

Fixes part of PR10520.

llvm-svn: 136401
 2011-07-28 21:38:51 +00:00
Jim Grosbach
adeee03ea2 Remove obsolete FIXME reference in comment. 
llvm-svn: 136400
 2011-07-28 21:37:05 +00:00
Jim Grosbach
3bbf68ce6e ARM assembly parsing and encoding for BFC and BFI. 
Add parsing support that handles converting the lsb+width source into the
odd way we represent the instruction (an inverted bitfield mask).

llvm-svn: 136399
 2011-07-28 21:34:26 +00:00
Jim Grosbach
2378f8a15e ARM parsing and encoding for ADR. 
The label does not have a '#' prefix. Add parsing and encoding tests.

llvm-svn: 136360
 2011-07-28 16:33:54 +00:00
Jim Grosbach
68241cddd8 Update ARM tests for parsing and encoding of WFE, WFI and YIELD. 
llvm-svn: 136358
 2011-07-28 16:00:41 +00:00
Duncan Sands
dbc06ec05d Due to changes coming from the new LLVM type system, you now get 
bitcasts in this test rather than getelementptr instructions;
llvm-gcc produces two bitcasts, clang produces one.

llvm-svn: 136349
 2011-07-28 12:21:47 +00:00
Bruno Cardoso Lopes
e24a043703 Add patterns to generate copies for extract_subvector instead of 
using vextractf128. This will reduce the number of issued instruction
for several avx codes.

llvm-svn: 136323
 2011-07-28 01:26:50 +00:00
Bruno Cardoso Lopes
1f63a37172 Add a few patterns to match allzeros without having to use the fp unit. 
Take advantage that the 128-bit vpxor zeros the higher part and use it.
This also fixes PR10491

llvm-svn: 136321
 2011-07-28 01:26:43 +00:00
Bruno Cardoso Lopes
06d8be564f Add SINT_TO_FP and FP_TO_SINT support for v8i32 types. Also move 
a convert pattern close to the instruction definition.

llvm-svn: 136320
 2011-07-28 01:26:39 +00:00
Jim Grosbach
992112a797 ARM parsing and encoding tests. 
UXTAB, UXTAB16, UXTAH, UXTB, UXTB16, and UXTH.

llvm-svn: 136312
 2011-07-28 00:37:03 +00:00
Evan Cheng
04762a3cf5 Emit an error is asm parser parsed X86_64 only registers, e.g. %rax, %sil. 
This can happen in cases where TableGen generated asm matcher cannot check
whether a register operand is in the right register class. e.g. mem operands.

rdar://8204588

llvm-svn: 136292
 2011-07-27 23:22:03 +00:00
Jim Grosbach
37586957ee ARM assembly parsing and encoding for USUB16 and USUB8. 
llvm-svn: 136289
 2011-07-27 23:10:05 +00:00
Jim Grosbach
3e48c1f676 ARM assembly parsing and encoding for USAX. 
llvm-svn: 136288
 2011-07-27 23:07:00 +00:00
Kevin Enderby
9adbbfffd0 Fix llvm-mc handing of x86 instructions that take 8-bit unsigned immediates. 
llvm-mc gives an "invalid operand" error for instructions that take an unsigned
immediate which have the high bit set such as:
    pblendw $0xc5, %xmm2, %xmm1
llvm-mc treats all x86 immediates as signed values and range checks them.
A small number of x86 instructions use the imm8 field as a set of bits.
This change only changes those instructions and where the high bit is not
ignored.  The others remain unchanged.

llvm-svn: 136287
 2011-07-27 23:01:50 +00:00
Jim Grosbach
b0bde240c1 Clean up tabs. 
llvm-svn: 136286
 2011-07-27 22:35:06 +00:00
Jim Grosbach
094803b4d0 ARM assembly parsing and encoding support for USAT and USAT16. 
Use range checked immediate operands for instructions. Add tests.

llvm-svn: 136285
 2011-07-27 22:34:17 +00:00
Jim Grosbach
e8619cb279 ARM assembly parsing and encoding tests for USAD8 and USADA8. 
llvm-svn: 136284
 2011-07-27 22:23:02 +00:00
Jim Grosbach
04ab1fa0bc ARM assembly parsing and encoding tests for UQSUB16 and UQSUB8. 
llvm-svn: 136282
 2011-07-27 22:13:08 +00:00
Jim Grosbach
2c4ea41358 Fix comment copy/paste-o. 
llvm-svn: 136281
 2011-07-27 22:11:41 +00:00
Jim Grosbach
a91fcf98c9 ARM assembly parsing and encoding tests for UQASX and UQSAX. 
llvm-svn: 136280
 2011-07-27 22:09:30 +00:00
Jim Grosbach
a85f517680 ARM assembly parsing and encoding tests for UQADD16 and UQADD8. 
llvm-svn: 136279
 2011-07-27 22:08:14 +00:00
Jim Grosbach
df8040c528 ARM assembly parsing and encoding for UMULL. 
Fix parsing of the 's' suffix for the mnemonic. Add tests.

llvm-svn: 136277
 2011-07-27 22:01:42 +00:00
Jim Grosbach
dd55e1de02 ARM assembly parsing and encoding for UMLAL. 
Fix parsing of the 's' suffix for the mnemonic. Add tests.

llvm-svn: 136274
 2011-07-27 21:58:11 +00:00
Jim Grosbach
f48e465aa5 ARM assembly parsing and encoding tests for UMAAL. 
llvm-svn: 136272
 2011-07-27 21:53:42 +00:00
Jim Grosbach
91f7d83f9c ARM assembly parsing and encoding tests for UHSUB16 and UHSUB8. 
llvm-svn: 136267
 2011-07-27 21:21:59 +00:00
Jim Grosbach
6f34be1f69 ARM assembly parsing and encoding tests for UHADD16, UHADD8 and UHASX. 
llvm-svn: 136266
 2011-07-27 21:20:45 +00:00
Jim Grosbach
c5cd3228c4 ARM parsing and encoding of SBFX and UBFX. 
Encode the width operand as it encodes in the instruction, which simplifies
the disassembler and the encoder, by using the imm1_32 operand def. Add a
diagnostic for the context-sensitive constraint that the width must be in
the range [1,32-lsb].

llvm-svn: 136264
 2011-07-27 21:09:25 +00:00
Jim Grosbach
8393f12ec5 ARM assembly parsing and encoding tests for UADD16, UADD8 and UASX. 
llvm-svn: 136261
 2011-07-27 20:43:44 +00:00
Jim Grosbach
1f818d0f25 ARM assembly parsing and encoding tests for TST instruction. 
llvm-svn: 136260
 2011-07-27 20:38:58 +00:00
Jim Grosbach
e74be6ad39 ARM assembly parsing and encoding tests for TEQ instruction. 
llvm-svn: 136259
 2011-07-27 20:37:36 +00:00
Owen Anderson
d2cd33b911 Refactor the STRT and STRBT instructions to distinguish between the register-addend and immediate-addend versions. Temporarily XFAIL the asm parsing tests for these instructions. 
llvm-svn: 136255
 2011-07-27 20:29:48 +00:00
Bill Wendling
b20cfdfe95 Merge the contents from exception-handling-rewrite to the mainline. 
This adds the new instructions 'landingpad' and 'resume'.

llvm-svn: 136253
 2011-07-27 20:18:04 +00:00
Jim Grosbach
624acaffd7 ARM assembly parsing and encoding for extend instructions. 
Assembly parser handling for extend instruction rotate operands. Add tests
for the sign extend instructions.

llvm-svn: 136252
 2011-07-27 20:15:40 +00:00
Nick Lewycky
59edfce6f7 Teach the ConstantMerge pass about alignment. Fixes PR10514! 
llvm-svn: 136250
 2011-07-27 19:47:34 +00:00
Bruno Cardoso Lopes
8830fde434 The vpermilps and vpermilpd have different behaviour regarding the 
usage of the shuffle bitmask. Both work in 128-bit lanes without
crossing, but in the former the mask of the high part is the same
used by the low part while in the later both lanes have independent
masks. Handle this properly and and add support for vpermilpd.

llvm-svn: 136200
 2011-07-27 00:56:34 +00:00
Devang Patel
e85a416d4e It is quiet possible that inlined function body is split into multiple chunks of consequtive instructions. But, there is not any way to describe this in .debug_inline accelerator table used by gdb. However, describe non contiguous ranges of inlined function body appropriately using AT_range of DW_TAG_inlined_subroutine debug info entry. 
llvm-svn: 136196
 2011-07-27 00:34:13 +00:00
Eric Christopher
db2a1cde87 Remove these two directories. The tests can be ported to dragonegg if 
they're still wanted.

llvm-svn: 136193
 2011-07-27 00:07:56 +00:00
Eric Christopher
a9f6746f91 Remove test/FrontendC, almost all of the tests have been migrated 
to clang now, the rest are in process (6) or have been deleted.

llvm-svn: 136191
 2011-07-26 23:49:39 +00:00
Jakob Stoklund Olesen
3f729850d3 Eliminate copies of undefined values during coalescing. 
These copies would coalesce easily, but the resulting value would be
defined by a deleted instruction. Now we also remove the undefined value
number from the destination register.

This fixes PR10503.

llvm-svn: 136174
 2011-07-26 23:00:24 +00:00
Benjamin Kramer
32a2ce8416 Update test. 
llvm-svn: 136170
 2011-07-26 22:45:39 +00:00
Benjamin Kramer
bfc2dfe3f7 Add a neat little two's complement hack for x86. 
On x86 we can't encode an immediate LHS of a sub directly. If the RHS comes from a XOR with a constant we can
fold the negation into the xor and add one to the immediate of the sub. Then we can turn the sub into an add,
which can be commuted and encoded efficiently.

This code is generated for __builtin_clz and friends.

llvm-svn: 136167
 2011-07-26 22:42:13 +00:00
Bruno Cardoso Lopes
e53bb853ea Recognize unpckh* masks and match 256-bit versions. The new versions are 
different from the previous 128-bit because they work in lanes.
Update a few comments and add testcases

llvm-svn: 136157
 2011-07-26 22:03:40 +00:00
Eli Friedman
4e16c5341a Prevent x86-specific DAGCombine from creating nodes with illegal type (which could not be selected). Fixes a minor isel issue that was breaking the testcase from r136130. 
llvm-svn: 136148
 2011-07-26 21:02:58 +00:00
Jim Grosbach
906ecb46ed FileCheck'ize test. 
llvm-svn: 136135
 2011-07-26 20:49:44 +00:00
Eli Friedman
8779017138 XFAIL this test while I investigate it; it's failing for an unexpected reason. 
llvm-svn: 136131
 2011-07-26 20:41:03 +00:00
Eli Friedman
e52bee3cc9 Add obvious missing case to switch. PR10497. 
llvm-svn: 136130
 2011-07-26 20:38:49 +00:00
Jim Grosbach
8e642b2b18 ARM diagnostics for ldrexd/stredx out of order paired register operands. 
llvm-svn: 136110
 2011-07-26 18:25:39 +00:00
Jim Grosbach
7b56b1cf0e ARM parsing and encoding tests for load/store exclusive instructions. 
llvm-svn: 136105
 2011-07-26 18:07:21 +00:00
Jim Grosbach
6fbee17fef ARM assembly parsing and encoding for SWP[B] instructions. 
llvm-svn: 136098
 2011-07-26 17:15:11 +00:00
Jim Grosbach
d3152480f2 ARM parsing and encoding for SVC instruction. 
llvm-svn: 136090
 2011-07-26 16:24:27 +00:00
Jim Grosbach
422ac2fc64 ARM assembly parsing and encoding tests for SUB instruction. 
llvm-svn: 136089
 2011-07-26 15:44:05 +00:00
Jim Grosbach
3efad526c2 Update ARM STM tests. Fix check: prefix for diagnostic tests. 
llvm-svn: 136088
 2011-07-26 15:41:22 +00:00
Bruno Cardoso Lopes
ab40a57cce Add 256-bit isel for movsldup/movshdup 
llvm-svn: 136051
 2011-07-26 02:39:32 +00:00
Jim Grosbach
41a5cd3fa2 ARM assembly parsing and encoding for SSAX, SSUB16 and SSUB8. 
llvm-svn: 136013
 2011-07-25 23:32:14 +00:00
Nick Lewycky
271216a67b Finish adding support for lifetime intrinsics to SROA. Fixes PR10121! 
llvm-svn: 136008
 2011-07-25 23:14:22 +00:00
Jim Grosbach
ef3d573e31 ARM assembly parsing and encoding for SSAT16 instruction. 
llvm-svn: 136006
 2011-07-25 23:09:14 +00:00
Bruno Cardoso Lopes
c94d6a2d2c Codegen allonesvector better while using AVX: vpcmpeqd + vinsertf128 
This also fixes PR10452

llvm-svn: 136004
 2011-07-25 23:05:32 +00:00
Bruno Cardoso Lopes
9380919dc5 - Handle special scalar_to_vector case: splats. Using a native 128-bit 
shuffle before inserting on a 256-bit vector.
- Add AVX versions of movd/movq instructions
- Introduce a few COPY patterns to match insert_subvector instructions.
This turns a trivial insert_subvector instruction into a register copy,
coalescing the xmm into a ymm and avoid emiting on more instruction.

llvm-svn: 136002
 2011-07-25 23:05:25 +00:00
Eli Friedman
dc213dadcc Attempt to fix test failure reported on llvm-commits. 
llvm-svn: 135995
 2011-07-25 22:28:51 +00:00
Eli Friedman
99fd6d41b5 Make sure this DAGCombine actually returns an UNDEF of the correct type; PR10476. 
llvm-svn: 135993
 2011-07-25 22:25:42 +00:00
Jim Grosbach
c1fe042da0 ARM assembly parsing and encoding for SSAT instruction. 
Fix the Rn register encoding for both SSAT and USAT. Update the parsing of the
shift operand to correctly handle the allowed shift types and immediate ranges
and issue meaningful diagnostics when an illegal value or shift type is
specified. Add aliases to parse an ommitted shift operand (default value of
'lsl #0').

Add tests for diagnostics and proper encoding.

llvm-svn: 135990
 2011-07-25 22:20:28 +00:00
Eli Friedman
234bbb2b95 Get rid of an incorrect optimization for shuffles with PALIGNR and simplify isPALIGNRMask. 
Addresses PR10466, although the crash from that PR only triggers in cases where DAGCombine misses optimizing a shuffle.

llvm-svn: 135980
 2011-07-25 21:36:45 +00:00
Jim Grosbach
2f728674cf Move some ELF directives into ELF asm parser. 
The .local, .hidden, .internal, and .protected are not legal for all supported
file formats (in particular, they're invalid for MachO). Move the parsing for
them into the ELF assembly parser since that's the format they're for.
Similarly, .weak is used by COFF and ELF, but not MachO, so move the parsing
to the COFF and ELF asm parsers. Previously, using any of these directives
on Darwin would result in an assertion failure in the parser; now we get
a diagnostic as we should.

rdar://9827089

llvm-svn: 135921
 2011-07-25 17:55:35 +00:00
Jakob Stoklund Olesen
0e4f7f92a2 Correctly handle <undef> tied uses when rewriting after a split. 
This fixes PR10463. A two-address instruction with an <undef> use
operand was incorrectly rewritten so the def and use no longer used the
same register, violating the tie constraint.

Fix this by always rewriting <undef> operands with the register a def
operand would use.

llvm-svn: 135885
 2011-07-24 20:23:50 +00:00
Dan Gohman
1c4dff0ab3 Move the last uses of RetainFunc etc. over to using getRetainCallee() etc. 
so that a declaration for objc_retain is created when needed if it doesn't
already exist. rdar://9825114.

llvm-svn: 135821
 2011-07-22 22:29:21 +00:00
Jim Grosbach
0bfa6a6db7 Add FIXME 
llvm-svn: 135819
 2011-07-22 22:15:38 +00:00
Jim Grosbach
daf04c88c2 ARM encoding and assembly parsing tests for SMULWB, SMULWT, SMUSD and SMUSDX. 
llvm-svn: 135818
 2011-07-22 22:13:00 +00:00
Jim Grosbach
a7a6658647 ARM assembly parsing and encoding updates. 
Tests for SMULBB, SMLALBT, SMLALTB, SMLALTT, and SMULL. Fix parsing of SMULLS.

llvm-svn: 135817
 2011-07-22 22:06:05 +00:00
Jim Grosbach
1e724e3217 ARM assembly parsing and encoding tests. 
Add tests for SMLSD, SMLSDX, SMLSLD, SMLSLDX, SMMLA, SMMLAR, SMMLS, SMMLSR,
SMMUL, SMMULR, SMUAD and SMUADX.

llvm-svn: 135810
 2011-07-22 21:34:56 +00:00
Bruno Cardoso Lopes
7347599e42 Fix test check! 
llvm-svn: 135802
 2011-07-22 20:55:28 +00:00
Bruno Cardoso Lopes
50a38b479a Fix PR10422 by adding the necessary AVX UCOMISD memory versions to 
load folding logic

llvm-svn: 135801
 2011-07-22 20:53:20 +00:00
Jim Grosbach
f7780d14ce ARM assembly parsing and encoding tests for SMLAWB/SMLAWT. 
llvm-svn: 135800
 2011-07-22 20:51:24 +00:00
Jim Grosbach
7ee1e3dc6c ARM assembly parsing and encoding tests. 
Tests for SMLAL, SMLALBB, SMLALBT, SMLALTB, SMLALTT, SMLALD, and SMLALDX
instructions.

llvm-svn: 135798
 2011-07-22 20:30:40 +00:00
Jim Grosbach
9ffa43becc ARM assembly parsing and encoding of SMLAL instruction. 
Fix parsing of carry-setting variant SMLALS and add tests.

llvm-svn: 135797
 2011-07-22 20:18:21 +00:00
Jim Grosbach
4f1031662f ARM encoding and assembly parsing of SMLAD{X} instructions. 
Fix encoding of destination register. Add tests.

llvm-svn: 135796
 2011-07-22 20:11:20 +00:00
Jim Grosbach
5b69318e51 ARM testcases for assembly parsing and encoding SMLA* instructions. 
llvm-svn: 135795
 2011-07-22 20:01:34 +00:00
Rafael Espindola
0c8190c4a3 Turn shuffles into unpacks for VT == MVT::v2i64 and MVT::v2f64 
too. Patch by Jeff Muizelaar.

llvm-svn: 135789
 2011-07-22 18:56:05 +00:00
Jim Grosbach
ebd66f344c ARM assembly parsing and encoding for SMC instruction. 
llvm-svn: 135782
 2011-07-22 18:13:31 +00:00
Jim Grosbach
c3612faf56 ARM encoding and assembly parsing tests. 
Add tests for SHADD8, SHADD16, SHASX, SHSUB8, and SHSUB16.

llvm-svn: 135780
 2011-07-22 18:04:48 +00:00
Jim Grosbach
0fe45ec0ed ARM assembly parsing and encoding for SETEND instruction. 
Add parsing and diagnostics for malformed inputs. Tests for diagnostics and
for correct encodings.

llvm-svn: 135776
 2011-07-22 17:44:50 +00:00
Jim Grosbach
2bb9f8ae56 ARM assembly parsing and encoding tests for SEL instruction. 
llvm-svn: 135772
 2011-07-22 16:59:33 +00:00
Bruno Cardoso Lopes
b7b9688aa5 -Inspected a AVX code block added by someone in early Feb. This was never used 
and was actually very wrong, fix it and make it simpler. Also remove the
ConcatVectors function, which is unused now.

- Fix a introduction of useless nodes in r126664 and r126264. The
VUNPCKL* should never be introduced cause we don't want duplicate
nodes for 128 AVX and non-AVX modes, the actual instruction
difference only exists during isel, but not for target specific DAG
nodes. We only introduce V* target nodes when there is no 128-bit
version already there.

- Fix a fragile test and make it more useful.

llvm-svn: 135729
 2011-07-22 00:15:07 +00:00
Bruno Cardoso Lopes
85357a460f Although we already support this, add testcases for consistency 
llvm-svn: 135728
 2011-07-22 00:15:03 +00:00
Bruno Cardoso Lopes
1ee6122518 Add a DAGCombine for transforming 128->256 casts into a simple 
vxorps + vinsertf128 pair of instructions

llvm-svn: 135727
 2011-07-22 00:15:00 +00:00
Dan Gohman
b320950f65 Fix MergeInVectorType to check for vector types with the same alloc 
size but different element types, so that it filters out the cases
that CreateShuffleVectorCast doesn't handle. This fixes rdar://9786827.

llvm-svn: 135721
 2011-07-21 23:30:09 +00:00
Jim Grosbach
54b0cbc6ae ARM parsing and encoding tests for SBC instruction. 
llvm-svn: 135718
 2011-07-21 23:03:59 +00:00
Jim Grosbach
901aeb1ffa ARM testcases for SADD/SASX parsing and encoding. 
llvm-svn: 135715
 2011-07-21 23:00:49 +00:00
Jim Grosbach
8d031eeb23 ARM assembly parsing support for RSC instruction. 
Add two-operand instruction aliases. Add parsing and encoding tests for
variants of the instruction.

llvm-svn: 135713
 2011-07-21 22:56:30 +00:00
Jim Grosbach
e96857fd4f ARM assembly parsing support for RSB instruction. 
Add two-operand instruction aliases. Add parsing and encoding tests for
variants of the instruction.

llvm-svn: 135712
 2011-07-21 22:37:43 +00:00
Jim Grosbach
6947bcc2b0 ARM parsing and encoding tests for RBIT, REV, REV16 and REVSH. 
llvm-svn: 135710
 2011-07-21 22:29:23 +00:00
Jim Grosbach
95ce5e9b8e ARM parsing and encodings tests for saturating arithmetic insns. 
llvm-svn: 135709
 2011-07-21 22:18:28 +00:00
Jim Grosbach
a860ba338f ARM assembly parsing POP/PUSH mnemonics. 
Aliases for LDM/STM. The single-register versions should encode to LDR/STR
with writeback, but we don't (yet) get that correct. Neither does Darwin's
system assembler, though, so that's not a deal-breaker of a limitation.

llvm-svn: 135702
 2011-07-21 19:57:11 +00:00