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5775 Commits

Author SHA1 Message Date
Jim Grosbach
7b62c2f71d ARM assmebler parsing for two-operand VMUL instructions. 
Combined destination and first source operand for f32 variant of the VMUL
(by scalar) instruction.

rdar://10522016

llvm-svn: 145842
 2011-12-05 19:55:46 +00:00
Bob Wilson
f054e82281 Fix 80-column issues. 
llvm-svn: 145783
 2011-12-04 00:52:23 +00:00
Anton Korobeynikov
e2277de6a7 Emit the ctors in the proper order on ARM/EABI. 
Maybe some targets should use this as well.

Patch by Evgeniy Stepanov!

llvm-svn: 145781
 2011-12-03 23:49:37 +00:00
Chad Rosier
d1968c9ed6 [arm-fast-isel] Unaligned stores of floats require special care. 
rdar://10510150

llvm-svn: 145742
 2011-12-03 02:21:57 +00:00
Jim Grosbach
fb734dff3c ARM NEON VEXT aliases for data type suffices. 
llvm-svn: 145726
 2011-12-02 23:34:39 +00:00
Jim Grosbach
b15f862d86 ARM VEXT tighten up operand classes a bit. 
llvm-svn: 145722
 2011-12-02 22:57:57 +00:00
Jim Grosbach
3b245f9c39 ARM VST1 single lane assembly parsing. 
llvm-svn: 145718
 2011-12-02 22:34:51 +00:00
Nick Lewycky
7d0d3c2d58 Move global variables in TargetMachine into new TargetOptions class. As an API 
change, now you need a TargetOptions object to create a TargetMachine. Clang
patch to follow.

One small functionality change in PTX. PTX had commented out the machine
verifier parts in their copy of printAndVerify. That now calls the version in
LLVMTargetMachine. Users of PTX who need verification disabled should rely on
not passing the command-line flag to enable it.

llvm-svn: 145714
 2011-12-02 22:16:29 +00:00
Jim Grosbach
82ae7f46ea ARM VLD1 single lane assembly parsing. 
llvm-svn: 145712
 2011-12-02 22:01:52 +00:00
Jim Grosbach
cbde5d4877 ARM encoder method needs the physical register number, not the enum. 
llvm-svn: 145711
 2011-12-02 22:01:25 +00:00
Chad Rosier
b3b2871bbf [arm-fast-isel] After promoting a function parameter be sure to update the 
argument value type.  Otherwise, the sign/zero-extend has no effect on arguments
passed via the stack (i.e., undefined high-order bits).
rdar://10515467

llvm-svn: 145701
 2011-12-02 20:25:18 +00:00
Jim Grosbach
a568ef0db6 Clean up aliases for ARM VLD1 single-lane assembly parsing a bit. 
Add the 16-bit lane variants while I'm at it.

llvm-svn: 145693
 2011-12-02 18:52:30 +00:00
Jim Grosbach
d5c0c63223 ARM start parsing VLD1 single lane instructions. 
The alias pseudos need cleaned up for size suffix handling, but this gets
the basics working. Will be cleaning up and adding more.

llvm-svn: 145655
 2011-12-02 00:35:16 +00:00
Matt Beaumont-Gay
07afe588d4 Remove unused variable 
llvm-svn: 145517
 2011-11-30 19:53:11 +00:00
Jim Grosbach
6b2f6389cc ARM parsing for VLD1 all lanes, with writeback. 
llvm-svn: 145510
 2011-11-30 19:35:44 +00:00
Jim Grosbach
fa9f6ccd62 ARM parsing for VLD1 two register all lanes, no writeback. 
llvm-svn: 145504
 2011-11-30 18:21:25 +00:00
Jim Grosbach
693ce8291c ARM parsing aliases for VLD1 single register all lanes. 
llvm-svn: 145464
 2011-11-30 01:09:44 +00:00
Jim Grosbach
9adabf4dde Tidy up a bit. 
llvm-svn: 145458
 2011-11-29 23:51:09 +00:00
Jim Grosbach
ccc984051d Add comment. 
llvm-svn: 145456
 2011-11-29 23:33:40 +00:00
Jim Grosbach
29147b45a5 ARM parsing aliases for data-size suffices on VST1. 
llvm-svn: 145454
 2011-11-29 23:21:31 +00:00
Jim Grosbach
538759efa7 ARM assembly parsing and encoding for four-register VST1. 
llvm-svn: 145450
 2011-11-29 22:58:48 +00:00
Jim Grosbach
5418e87582 ARM assembly parsing and encoding for three-register VST1. 
llvm-svn: 145442
 2011-11-29 22:38:04 +00:00
Andrew Trick
a6c63bda2e comment. 
llvm-svn: 145422
 2011-11-29 19:33:49 +00:00
Daniel Dunbar
4e00f5f8fd build/CMake: Finish removal of add_llvm_library_dependencies. 
llvm-svn: 145420
 2011-11-29 19:25:30 +00:00
Jim Grosbach
168778090c Better fix for ARM MOVT relocation encoding of thumb bit. 
Replaces r145318 with a more targetted fix for the relocation handling.

llvm-svn: 145346
 2011-11-29 01:15:25 +00:00
Duncan Sands
ec13954efd Silence wrong warnings from GCC about variables possibly being used 
uninitialized: GCC doesn't understand that the variables are only used
if !UseImm, in which case they have been initialized.

llvm-svn: 145239
 2011-11-28 10:31:27 +00:00
Benjamin Kramer
d861d825f2 Move code into anonymous namespaces. 
llvm-svn: 145154
 2011-11-26 23:01:57 +00:00
NAKAMURA Takumi
48face75c4 ARMLoadStoreOptimizer.cpp: Fix MSVC(Debug) build. 
llvm-svn: 145129
 2011-11-25 09:19:57 +00:00
Chad Rosier
70dab03f8e Guard call to getRegForValue with isTypeLegal check to avoid unnecessary work/dead code. 
llvm-svn: 144959
 2011-11-18 01:17:34 +00:00
Chad Rosier
7d2af13ccb Add TODO comment. 
llvm-svn: 144920
 2011-11-17 21:46:13 +00:00
Chad Rosier
47928b03f3 Dead code. 
llvm-svn: 144888
 2011-11-17 07:24:49 +00:00
Chad Rosier
c9ed1d9072 Don't unconditionally set the kill flag. 
rdar://10456186

llvm-svn: 144872
 2011-11-17 01:16:53 +00:00
Jim Grosbach
fe5f0cfa29 Generalize the fixup info for ARM mode. 
We don't (yet) have the granularity in the fixups to be specific about which
bitranges are affected. That's a future cleanup, but we're not there yet.

llvm-svn: 144852
 2011-11-16 22:48:37 +00:00
Jim Grosbach
a14a3d22b1 Fix encoding of NOP used for padding in ARM mode .align. 
llvm-svn: 144842
 2011-11-16 22:40:25 +00:00
Jim Grosbach
8c8d091ecc ARM assembly parsing for shifted register operands for MOV instruction. 
llvm-svn: 144837
 2011-11-16 21:50:05 +00:00
Jim Grosbach
6007a95d57 Clean up debug printing of ARM shifted operands. 
llvm-svn: 144836
 2011-11-16 21:46:50 +00:00
Jim Grosbach
e9b1f2aead ARM assmebly two operand forms for LSR, ASR, LSL, ROR register. 
llvm-svn: 144814
 2011-11-16 19:12:24 +00:00
Jim Grosbach
18844fca8d ARM assembly parsing for RRX mnemonic. 
rdar://9704684

llvm-svn: 144812
 2011-11-16 19:05:59 +00:00
Chad Rosier
69f9c432a6 Check to make sure we can select the instruction before trying to put the 
operands into a register.  Otherwise, we may materialize dead code.

llvm-svn: 144805
 2011-11-16 18:39:44 +00:00
Jim Grosbach
acb7c2d555 ARM mode aliases for bitwise instructions w/ register operands. 
rdar://9704684

llvm-svn: 144803
 2011-11-16 18:31:45 +00:00
Bob Wilson
70092e2b0a Fix tablegen warning: hasSideEffects is inferred for eh_sjlj_dispatchsetup. 
llvm-svn: 144798
 2011-11-16 17:09:59 +00:00
NAKAMURA Takumi
9a0c941fff lib/Target/ARM/CMakeLists.txt: Disable optimization in ARMISelLowering.cpp also on MSC15(aka VS9). Seems miscompiled. 
llvm-svn: 144794
 2011-11-16 09:18:28 +00:00
Evan Cheng
2b239cbcf6 Sink codegen optimization level into MCCodeGenInfo along side relocation model 
and code model. This eliminates the need to pass OptLevel flag all over the
place and makes it possible for any codegen pass to use this information.

llvm-svn: 144788
 2011-11-16 08:38:26 +00:00
Bob Wilson
0e88464871 Fix ARM SjLj-EH dispatch setup code. <rdar://problem/10444602> 
The EmitBasePointerRecalculation function has 2 problems, one minor and one
fatal.  The minor problem is that it inserts the code at the setjmp
instead of in the dispatch block.  The fatal problem is that at the point
where this code runs, we don't know whether there will be a base pointer,
so the entire function is a no-op.  The base pointer recalculation needs to
be handled as it was before, by inserting a pseudo instruction that gets
expanded late.

Most of the support for the old approach is still here, but it no longer
has any connection to the eh_sjlj_dispatchsetup intrinsic.  Clean up the
parts related to the intrinsic and just generate the pseudo instruction
directly.

llvm-svn: 144781
 2011-11-16 07:11:57 +00:00
Chad Rosier
17577c9394 Add FIXME comment. 
llvm-svn: 144743
 2011-11-16 00:32:20 +00:00
Jakob Stoklund Olesen
5ea426cfa8 Enable -widen-vmovs by default. 
This will widen 32-bit register vmov instructions to 64-bit when
possible.  The 64-bit vmovd instructions can then be translated to NEON
vorr instructions by the execution dependency fix pass.

The copies are only widened if they are marked as clobbering the whole
D-register.

llvm-svn: 144734
 2011-11-15 23:53:18 +00:00
Jim Grosbach
044acb8bee ARM assembly parsing for register range syntax for VLD/VST register lists. 
For example,
vld1.f64 {d2-d5}, [r2,:128]!

Should be equivalent to:
vld1.f64 {d2,d3,d4,d5}, [r2,:128]!

It's not documented syntax in the ARM ARM, but it is consistent with what's
accepted for VLDM/VSTM and is unambiguous in meaning, so it's a good thing to
support.

rdar://10451128

llvm-svn: 144727
 2011-11-15 23:19:15 +00:00
Jim Grosbach
778bed02bb ARM assembly parsing for data type suffices on NEON VMOV aliases. 
llvm-svn: 144722
 2011-11-15 22:54:42 +00:00
Jim Grosbach
b8ebc386df ARM assembly parsing two operand forms for shift instructions. 
llvm-svn: 144713
 2011-11-15 22:27:54 +00:00
Jim Grosbach
d573473cb8 ARM VFP assembly parsing for VADD and VSUB two-operand forms. 
llvm-svn: 144710
 2011-11-15 22:15:10 +00:00
Jim Grosbach
e991d79b50 ARM accept an immediate offset in memory operands w/o the '#'. 
llvm-svn: 144709
 2011-11-15 22:14:41 +00:00
Jim Grosbach
8f360855cf ARM enclosing curly braces optional on one-register VLD/VST instruction lists. 
'vld1.f32 d4, [r7]' should be parsed as equivalent to 'vld1.f32 {d4}, [r7]'

rdar://10450488.

llvm-svn: 144701
 2011-11-15 21:45:55 +00:00
Jim Grosbach
3c205132ff ARM size suffix on VFP single-precision 'vmov' is optional. 
rdar://10435114

llvm-svn: 144698
 2011-11-15 21:18:35 +00:00
Jim Grosbach
f68b81adb7 Fix typo. 
llvm-svn: 144695
 2011-11-15 21:01:30 +00:00
Jim Grosbach
4d0ad5a4e0 ARM alternate size suffices for VTRN instructions. 
rdar://10435076

llvm-svn: 144694
 2011-11-15 20:49:46 +00:00
Owen Anderson
f71db061ba Fix a misplaced paren bug. 
llvm-svn: 144692
 2011-11-15 20:30:41 +00:00
Jim Grosbach
8987b277cb ARM assembly parsing for optional datatype suffix on VFP VMOV GPR<->VFP insns. 
Yet more of rdar://10435076.

llvm-svn: 144691
 2011-11-15 20:29:42 +00:00
Jim Grosbach
f0690cd90c ARM assembly parsing for two-operand form of 'mul' instruction. 
rdar://10449856.

llvm-svn: 144689
 2011-11-15 20:14:51 +00:00
Jim Grosbach
8b1d4c989c ARM assembly parsing for two-operand form of 'mul' instruction. 
Ongoing rdar://10435114.

llvm-svn: 144688
 2011-11-15 20:02:06 +00:00
Jim Grosbach
6dbfffcbf7 Thumb2 two-operand 'mul' instruction wide encoding parsing. 
rdar://10449724

llvm-svn: 144684
 2011-11-15 19:55:16 +00:00
Owen Anderson
35f049f1fb Fix an ambiguous decoding where we failed to properly decode VMOVv2f32 and VMOVv4f32. 
llvm-svn: 144683
 2011-11-15 19:55:00 +00:00
Jim Grosbach
df951fa128 Thumb2 assembly parsing for mul.w in IT block fix. 
When the 3rd operand is not a low-register, and the first two operands are
the same low register, the parser was incorrectly trying to use the 16-bit
instruction encoding.

rdar://10449281

llvm-svn: 144679
 2011-11-15 19:29:45 +00:00
Jim Grosbach
61c3f1b35b ARM parsing datatype suffix variants for register-writeback VLD1/VST1 instructions. 
rdar://10435076

llvm-svn: 144650
 2011-11-15 17:49:59 +00:00
Jay Foad
ebf2ec40e0 Fix typo in comment. 
llvm-svn: 144633
 2011-11-15 07:50:05 +00:00
Jay Foad
b4bb79247a Make use of MachinePointerInfo::getFixedStack. This removes all mention 
of PseudoSourceValue from lib/Target/.

llvm-svn: 144632
 2011-11-15 07:34:52 +00:00
Jay Foad
7d05fea7f8 Remove some unnecessary includes of PseudoSourceValue.h. 
llvm-svn: 144631
 2011-11-15 07:24:32 +00:00
Evan Cheng
47d8f8af84 Add vmov.f32 to materialize f32 immediate splats which cannot be handled by 
integer variants. rdar://10437054

llvm-svn: 144608
 2011-11-15 02:12:34 +00:00
Jim Grosbach
2ac98a24aa ARM parsing datatype suffix variants for fixed-writeback VLD1/VST1 instructions. 
rdar://10435076

llvm-svn: 144606
 2011-11-15 01:46:57 +00:00
Jim Grosbach
6846540505 ARM parsing datatype suffix variants for non-writeback VST1 instructions. 
rdar://10435076

llvm-svn: 144593
 2011-11-14 23:43:46 +00:00
Jim Grosbach
a1a28df278 ARM parsing datatype suffix variants for non-writeback VLD1 instructions. 
rdar://10435076

llvm-svn: 144592
 2011-11-14 23:32:59 +00:00
Jim Grosbach
8ec84fbe99 Add explanatory comment. 
llvm-svn: 144589
 2011-11-14 23:21:09 +00:00
Jim Grosbach
1d07736422 Split out the plain '.{8|16|32|64}' suffix handling. 
Make it easier to deal with aliases for instructions that do require a suffix
but accept more specific variants of the same size.

llvm-svn: 144588
 2011-11-14 23:20:14 +00:00
Jim Grosbach
00283a5c8e ARM parsing optional datatype suffix for VAND/VEOR/VORR instructions. 
rdar://10435076

llvm-svn: 144587
 2011-11-14 23:11:19 +00:00
Chad Rosier
4e05d7f12c Supporting inline memmove isn't going to be worthwhile. The only way to avoid 
violating a dependency is to emit all loads prior to stores.  This would likely
cause a great deal of spillage offsetting any potential gains.

llvm-svn: 144585
 2011-11-14 23:04:09 +00:00
Jim Grosbach
4a2f107b04 ARM VLDR/VSTR instructions don't need a size suffix. 
Canonicallize on the non-suffixed form, but continue to accept assembly that
has any correctly sized type suffix.

llvm-svn: 144583
 2011-11-14 23:03:21 +00:00
Chad Rosier
48b92815e0 Add support for inlining small memcpys. 
rdar://10412592

llvm-svn: 144578
 2011-11-14 22:46:17 +00:00
Chad Rosier
8aa8f14940 Fix a performance regression from r144565. Positive offsets were being lowered 
into registers, rather then encoded directly in the load/store.

llvm-svn: 144576
 2011-11-14 22:34:48 +00:00
Jim Grosbach
009733c9e4 ARM assembly parsing type suffix options for VLDR/VSTR. 
rdar://10435076

llvm-svn: 144575
 2011-11-14 22:28:39 +00:00
Chad Rosier
65395ac4d0 Add support for Thumb load/stores with negative offsets. 
rdar://10412592

llvm-svn: 144565
 2011-11-14 20:22:27 +00:00
Jim Grosbach
d791cf718c Tidy up. 80 column. 
llvm-svn: 144538
 2011-11-14 17:52:47 +00:00
Chad Rosier
0e5094ca87 Add support for ARM halfword load/stores and signed byte loads with negative 
offsets.
rdar://10412592

llvm-svn: 144518
 2011-11-14 04:09:28 +00:00
Chad Rosier
58ab241006 The order in which the predicate is added differs between Thumb and ARM mode. Fix predicate when in ARM mode and restore SelectIntrinsicCall. 
llvm-svn: 144494
 2011-11-13 09:44:21 +00:00
Chad Rosier
8cfccc356e Temporarily disable SelectIntrinsicCall when in ARM mode. This is causing failures. 
llvm-svn: 144492
 2011-11-13 05:14:43 +00:00
Chad Rosier
0770c4834a Fix comments. 
llvm-svn: 144490
 2011-11-13 04:25:02 +00:00
Chad Rosier
acd199b5a4 Add support for emitting both signed- and zero-extend loads. Fix 
SimplifyAddress to handle either a 12-bit unsigned offset or the ARM +/-imm8
offsets (addressing mode 3).  This enables a load followed by an integer 
extend to be folded into a single load.

For example:
ldrb r1, [r0]       ldrb r1, [r0]
uxtb r2, r1     =>
mov  r3, r2         mov  r3, r1

llvm-svn: 144488
 2011-11-13 02:23:59 +00:00
Daniel Dunbar
73d41b0f03 build: Attempt to rectify inconsistencies between CMake and LLVMBuild versions of explicit dependencies. 
- The hope is that we have a tool/test to verify these are accurate (and tight) soon.

llvm-svn: 144444
 2011-11-12 02:10:57 +00:00
Jim Grosbach
7e41554aa7 ARM refactor simple immediate asm operand render methods. 
These immediate operands all use the same simple logic for rendering to
MCInst, so have them share the method for doing so.

llvm-svn: 144439
 2011-11-12 00:58:43 +00:00
Jim Grosbach
312b583950 Re-apply 144430, this time with the associated isel and disassmbler bits. 
Original commit msg: 'ARM assembly parsing for VST1 two-register encoding.'

llvm-svn: 144437
 2011-11-12 00:31:53 +00:00
Jim Grosbach
7fccd540c9 Oops. Missed the isel half of this. revert while I sort that out. 
llvm-svn: 144431
 2011-11-11 23:51:31 +00:00
Jim Grosbach
13af5276a1 ARM assembly parsing for VST1 two-register encoding. 
llvm-svn: 144430
 2011-11-11 23:45:47 +00:00
Jim Grosbach
13b7ab7527 ARM optional size suffix for VLDR/VSTR syntax. 
llvm-svn: 144427
 2011-11-11 23:34:43 +00:00
Chad Rosier
a2a0fbeded Add support in fast-isel for selecting memset/memcpy/memmove intrinsics. 
llvm-svn: 144426
 2011-11-11 23:31:03 +00:00
Jim Grosbach
bc077320e1 ARM vldm and vstm VFP instructions can take a data type suffix. 
It's ignored by the assembler when present, but is legal syntax. Other
instructions have something similar, but for some mnemonics it's
only sometimes not significant, so this quick check in the parser will
need refactored into something more robust soon-ish. This gets some
basics working in the meantime.

Partial for rdar://10435264

llvm-svn: 144422
 2011-11-11 23:08:10 +00:00
Jim Grosbach
01a7117803 Nuke no longer accurate comment. 
llvm-svn: 144411
 2011-11-11 22:30:06 +00:00
Andrew Trick
6ff75a5d8d Preserve MachineMemOperands in ARMLoadStoreOptimizer. 
Fixes PR8113.

llvm-svn: 144409
 2011-11-11 22:18:09 +00:00
Jim Grosbach
1d581ecb00 ARM allow Q registers in vldm/vstm register lists. 
rdar://9672822

llvm-svn: 144407
 2011-11-11 21:27:40 +00:00
Benjamin Kramer
e5295a772e Remove the unnecessary dependency on libARMCodeGen from libARMDisassembler. 
llvm-svn: 144384
 2011-11-11 12:39:41 +00:00
Chad Rosier
98f48b009e Rename variables to avoid confusion. No functionallity change intended. 
llvm-svn: 144377
 2011-11-11 06:27:41 +00:00
Chad Rosier
feb72bfc08 Add support for using immediates with select instructions. 
rdar://10412592

llvm-svn: 144376
 2011-11-11 06:20:39 +00:00
Eli Friedman
285b451941 Make sure to expand SIGN_EXTEND_INREG for NEON vectors. PR11319, round 3. 
llvm-svn: 144361
 2011-11-11 03:16:38 +00:00
Chad Rosier
38f07d3f9c When loading a value, treat an i1 as an i8. 
llvm-svn: 144356
 2011-11-11 02:38:59 +00:00
Chad Rosier
ac92994773 Add support for using MVN to materialize negative constants. 
rdar://10412592

llvm-svn: 144348
 2011-11-11 00:36:21 +00:00
Daniel Dunbar
846fb32afc LLVMBuild: Add explicit information on whether targets define an assembly printer, assembly parser, or disassembler. 
llvm-svn: 144344
 2011-11-11 00:23:56 +00:00
Jim Grosbach
ddf85f6be2 Thumb2 ldm/stm updating w/ one register in the list are LDR/STR. 
rdar://10429490

llvm-svn: 144338
 2011-11-10 23:58:34 +00:00
Jim Grosbach
d1d04109ff ARM let processInstruction() tranforms chain. 
llvm-svn: 144337
 2011-11-10 23:42:14 +00:00
Jim Grosbach
bd7df609b7 Thumb2 parsing for push/pop w/ hi registers in the reglist. 
rdar://10130228.

llvm-svn: 144331
 2011-11-10 23:17:11 +00:00
Jim Grosbach
615c824de4 Thumb1 diagnostics for reglist on PUSH/POP fix. 
Was not checking the first register in the register list.

llvm-svn: 144329
 2011-11-10 23:01:27 +00:00
Jim Grosbach
c3651cb620 Thumb MUL assembly parsing for 3-operand form. 
Get the source register that isn't tied to the destination register correct,
even when the assembly source operand order is backwards.

rdar://10428630

llvm-svn: 144322
 2011-11-10 22:10:12 +00:00
Chad Rosier
7b7dced006 When in ARM mode, LDRH/STRH require special handling of negative offsets. 
For correctness, disable this for now.
rdar://10418009

llvm-svn: 144316
 2011-11-10 21:09:49 +00:00
Jim Grosbach
614f35bb30 ARM .thumb_func directive for quoted symbol names. 
Use the getIdentifier() method of the token, not getString(), otherwise
we keep the quotes as part of the symbol name, which we don't want.

rdar://10428015

llvm-svn: 144315
 2011-11-10 20:48:53 +00:00
Jim Grosbach
f5943e4c5e ARM assembly parsing for LSR/LSL/ROR(immediate). 
More of rdar://9704684

llvm-svn: 144301
 2011-11-10 19:18:01 +00:00
Jim Grosbach
b66dfc2999 ARM assembly parsing for ASR(immediate). 
Start of rdar://9704684

llvm-svn: 144293
 2011-11-10 16:44:55 +00:00
Chad Rosier
69cdae5eb9 For immediate encodings of icmp, zero or sign extend first. Then 
determine if the value is negative and flip the sign accordingly.
rdar://10422026

llvm-svn: 144258
 2011-11-10 01:30:39 +00:00
Daniel Dunbar
f0c4aed0ab llvm-build: Add --native-target and --enable-targets options, and add logic to 
handle defining the "magic" target related components (like native,
nativecodegen, and engine).
 - We still require these components to be in the project (currently in
   lib/Target) so that we have a place to document them and hopefully make it
   more obvious that they are "magic".

llvm-svn: 144253
 2011-11-10 00:50:07 +00:00
Daniel Dunbar
c09b47db8f llvm-build: Add an explicit component type to represent targets. 
- Gives us a place to hang target specific metadata (like whether the target has a JIT).

llvm-svn: 144250
 2011-11-10 00:49:51 +00:00
Jim Grosbach
ee70556a4e Tidy up. 
llvm-svn: 144244
 2011-11-10 00:02:33 +00:00
Jim Grosbach
8591bd2bab Thumb2 assembly parsing STMDB w/ optional .w suffix. 
rdar://10422955

llvm-svn: 144242
 2011-11-09 23:44:23 +00:00
Eli Friedman
c93f8aa514 Make sure we correctly unroll conversions between v2f64 and v2i32 on ARM. 
llvm-svn: 144241
 2011-11-09 23:36:02 +00:00
Chad Rosier
f47b941510 The ARM LDRH/STRH instructions use a +/-imm8 encoding, not an imm12. 
rdar://10418009

llvm-svn: 144213
 2011-11-09 21:30:12 +00:00
Chad Rosier
e32fed6868 Add support for encoding immediates in icmp and fcmp. Hopefully, this will 
remove a fair number of unnecessary materialized constants.
rdar://10412592

llvm-svn: 144163
 2011-11-09 03:22:02 +00:00
Evan Cheng
2b29230fcf Hide cpu name checking in ARMSubtarget. 
llvm-svn: 144154
 2011-11-09 01:57:03 +00:00
Evan Cheng
08e61752f2 Add workaround for Cortex-M3 errata 602117 by replacing ldrd x, y, [x] with ldm or ldr pairs. 
llvm-svn: 144123
 2011-11-08 21:21:09 +00:00
Chad Rosier
24a6e399f8 ARMFastISel doesn't support thumb1. Rename isThumb to isThumb2 to reflect this. 
No functional change intended.

llvm-svn: 144122
 2011-11-08 21:12:00 +00:00
Lang Hames
ee7de1cff0 Lower mem-ops to unaligned i32/i16 load/stores on ARM where supported. 
Add support for trimming constants to GetDemandedBits. This fixes some funky
constant generation that occurs when stores are expanded for targets that don't
support unaligned stores natively.

llvm-svn: 144102
 2011-11-08 18:56:23 +00:00
Pete Cooper
224434deec Added invariant field to the DAG.getLoad method and changed all calls. 
When this field is true it means that the load is from constant (runt-time or compile-time) and so can be hoisted from loops or moved around other memory accesses

llvm-svn: 144100
 2011-11-08 18:42:53 +00:00
Eli Friedman
d5ba38a3d2 Make sure to mark vector extload's as expand on ARM. Fixes PR11319. 
llvm-svn: 144057
 2011-11-08 01:43:53 +00:00
Chad Rosier
4b12a5b7fc Enable support for returning i1, i8, and i16. Nothing special todo as it's the 
callee's responsibility to sign or zero-extend the return value.  The additional
test case just checks to make sure the calls are selected (i.e., -fast-isel-abort
doesn't assert).

llvm-svn: 144047
 2011-11-08 00:03:32 +00:00
Chad Rosier
7e0e075322 Allow i1 to be promoted to i32 for ARM AAPCS and AAPCS-VFP calling convention as well. 
llvm-svn: 144021
 2011-11-07 21:43:40 +00:00
Benjamin Kramer
89ebc7ab4b Simplify some uses of utohexstr. 
As a side effect hex is printed lowercase instead of uppercase now.

llvm-svn: 144013
 2011-11-07 21:00:59 +00:00
Benjamin Kramer
c597902ecc Replace (Lower|Upper)caseString in favor of StringRef's newest methods. 
llvm-svn: 143891
 2011-11-06 20:37:06 +00:00
Chad Rosier
806ffd8918 Add support for passing i1, i8, and i16 call parameters. Also, be sure to 
zero-extend the constant integer encoding.  Test case provides testing for
both call parameters and materialization of i1, i8, and i16 types.

llvm-svn: 143821
 2011-11-05 20:16:15 +00:00
Chad Rosier
af23ffd465 Allow i1 to be promoted to i32 for ARM APCS calling convention. 
llvm-svn: 143755
 2011-11-05 00:02:56 +00:00
Chad Rosier
5e54485e51 Cannot create a result register for non-legal types. 
llvm-svn: 143749
 2011-11-04 23:45:39 +00:00
Chad Rosier
a900a3e2f6 When materializing an i32, SExt vs ZExt doesn't matter when we're trying to fit 
in a 16-bit immediate.  However, for the shorter non-legal types (i.e., i1, i8,
i16) we should not sign-extend.  This prevents us from materializing things
such as 'true' (i.e., i1 1).

llvm-svn: 143743
 2011-11-04 23:09:49 +00:00
Chad Rosier
0143eb6f22 Enable support for materializing i1, i8, and i16 integers via move immediate. 
llvm-svn: 143739
 2011-11-04 22:29:00 +00:00
Daniel Dunbar
799f4bb723 build/cmake: Use tblgen macro directly instead of llvm_tablegen, which just 
added a layer of indirection with no value (not even conciseness).

llvm-svn: 143727
 2011-11-04 19:04:23 +00:00
Evan Cheng
e4d6efb7c4 Fix some minor scheduling itinerary bug. It's not expected to actually affect codegen. 
llvm-svn: 143675
 2011-11-04 01:48:58 +00:00
Chad Rosier
8836fe3bbd Indentation. 
llvm-svn: 143670
 2011-11-04 00:58:10 +00:00
Chad Rosier
21cd759234 Add fast-isel support for returning i1, i8, and i16. 
llvm-svn: 143669
 2011-11-04 00:50:21 +00:00
Dan Gohman
a5f382da8b Reapply r143206, with fixes. Disallow physical register lifetimes 
across calls, and only check for nested dependences on the special
call-sequence-resource register.

llvm-svn: 143660
 2011-11-03 21:49:52 +00:00
Daniel Dunbar
3760ebeebb build: Add initial cut at LLVMBuild.txt files. 
llvm-svn: 143634
 2011-11-03 18:53:17 +00:00
Chad Rosier
74c4e2c2d9 Add support for sign-extending non-legal types in SelectSIToFP(). 
llvm-svn: 143603
 2011-11-03 02:04:59 +00:00
Lang Hames
ba63f9da8b Fixed parameter name. 
llvm-svn: 143594
 2011-11-02 23:37:04 +00:00
Lang Hames
ceec8ec67e Try to lower memset/memcpy/memmove to vector instructions on ARM where the alignment permits. 
llvm-svn: 143582
 2011-11-02 22:52:45 +00:00
Chad Rosier
8a613c5ec5 Add support for comparing integer non-legal types. 
llvm-svn: 143559
 2011-11-02 18:08:25 +00:00
Owen Anderson
ac9fd95057 Fix the issue that r143552 was trying to address the _right_ way. One-register lists are legal on LDM/STM instructions, but we should not print the PUSH/POP aliases when they appear. This fixes round tripping on this instruction. 
llvm-svn: 143557
 2011-11-02 18:03:14 +00:00
Owen Anderson
66d22d36d2 The rules disallowing single-register reglist operands only apply to the POP alias, not to LDM/STM instructions. Revert r143552. 
llvm-svn: 143553
 2011-11-02 17:46:18 +00:00
Owen Anderson
9b966e47e2 Register list operands are not allowed to contain only a single register. Alternate encodings are used in that case. 
llvm-svn: 143552
 2011-11-02 17:41:23 +00:00
Chad Rosier
e94ff7c26e Factor out an EmitIntExt function. No functionality change intended. 
llvm-svn: 143547
 2011-11-02 17:20:24 +00:00
Chad Rosier
f72870096b Factor out a SelectTrunc function. No functionality change intended. 
llvm-svn: 143523
 2011-11-02 00:18:48 +00:00
Jim Grosbach
577b0f181e ARM label operands can be quoted. 
For example, labels from Objective-C sources.

llvm-svn: 143511
 2011-11-01 22:38:31 +00:00
Jim Grosbach
e5b5830aa1 ARM label operands can have an optional '#' before them. 
llvm-svn: 143510
 2011-11-01 22:37:37 +00:00
Owen Anderson
0d69f6aa51 Fix disassembly of some VST1 instructions. 
llvm-svn: 143507
 2011-11-01 22:18:13 +00:00
Jim Grosbach
c5f44d0b71 ARM VLD/VST assembly parsing for symbolic address operands. 
llvm-svn: 143413
 2011-11-01 01:24:45 +00:00
Jim Grosbach
76dd8a9702 ARM VST1 w/ writeback assembly parsing and encoding. 
llvm-svn: 143369
 2011-10-31 21:50:31 +00:00
Jim Grosbach
1cca1d4e60 ARM writeback vs. stride operands for VST/VLD. 
The _fixed variants have a writeback operand, but not a stride operand.
Split the conditional flag to distinguish the cases.

llvm-svn: 143356
 2011-10-31 19:11:23 +00:00
Owen Anderson
d7700cb13f More not-crashing NEON disassembly updates for the vld refactoring. 
llvm-svn: 143351
 2011-10-31 17:17:32 +00:00
Dan Gohman
826cec9a4b Revert r143206, as there are still some failing tests. 
llvm-svn: 143262
 2011-10-29 00:41:52 +00:00
Jim Grosbach
37119b8a01 ARM mode 'mov' to 'mvn' assembler alias. 
llvm-svn: 143237
 2011-10-28 22:50:54 +00:00
Jim Grosbach
f3285dba99 Add Thumb2 alias for "mov Rd, #imm" to "mvn Rd, #~imm". 
When '~imm' is encodable as a t2_so_imm but plain 'imm' is not. For example,
  mov r2, #-3
becomes
  mvn r2, #2

rdar://10349224

llvm-svn: 143235
 2011-10-28 22:36:30 +00:00
Owen Anderson
5fdb303642 Specify that the high bit of the alignment field is fixed to 0 on these instructions. 
llvm-svn: 143220
 2011-10-28 20:43:24 +00:00
Owen Anderson
3dd6c949a5 Reapply r143202, with a manual decoding hook for SWP. This change inadvertantly exposed a decoding ambiguity between SWP and CPS that the auto-generated decoder can't handle. 
llvm-svn: 143208
 2011-10-28 18:02:13 +00:00
Dan Gohman
dedcc22bcd Reapply r143177 and r143179 (reverting r143188), with scheduler 
fixes: Use a separate register, instead of SP, as the
calling-convention resource, to avoid spurious conflicts with
actual uses of SP. Also, fix unscheduling of calling sequences,
which can be triggered by pseudo-two-address dependencies.

llvm-svn: 143206
 2011-10-28 17:55:38 +00:00
Owen Anderson
5ccc0979a0 Revert r143202. 
llvm-svn: 143203
 2011-10-28 17:38:30 +00:00
Owen Anderson
5c58be2852 Specify fixed bits on CPS instructions to enable roundtripping. 
llvm-svn: 143202
 2011-10-28 17:29:39 +00:00
Jim Grosbach
72ab459378 Thumb2 ADD/SUB instructions encoding selection outside IT block. 
Outside an IT block, "add r3, #2" should select a 32-bit wide encoding
rather than generating an error indicating the 16-bit encoding is only
legal in an IT block (outside, the 'S' suffic is required for the 16-bit
encoding).

rdar://10348481

llvm-svn: 143201
 2011-10-28 16:57:07 +00:00
Duncan Sands
a6507c4bcb Speculatively disable Dan's commits 143177 and 143179 to see if 
it fixes the dragonegg self-host (it looks like gcc is miscompiled).
Original commit messages:
Eliminate LegalizeOps' LegalizedNodes map and have it just call RAUW
on every node as it legalizes them. This makes it easier to use
hasOneUse() heuristics, since unneeded nodes can be removed from the
DAG earlier.

Make LegalizeOps visit the DAG in an operands-last order. It previously
used operands-first, because LegalizeTypes has to go operands-first, and
LegalizeTypes used to be part of LegalizeOps, but they're now split.
The operands-last order is more natural for several legalization tasks.
For example, it allows lowering code for nodes with floating-point or
vector constants to see those constants directly instead of seeing the
lowered form (often constant-pool loads). This makes some things
somewhat more complicated today, though it ought to allow things to be
simpler in the future. It also fixes some bugs exposed by Legalizing
using RAUW aggressively.

Remove the part of LegalizeOps that attempted to patch up invalid chain
operands on libcalls generated by LegalizeTypes, since it doesn't work
with the new LegalizeOps traversal order. Instead, define what
LegalizeTypes is doing to be correct, and transfer the responsibility
of keeping calls from having overlapping calling sequences into the
scheduler.

Teach the scheduler to model callseq_begin/end pairs as having a
physical register definition/use to prevent calls from having
overlapping calling sequences. This is also somewhat complicated, though
there are ways it might be simplified in the future.

This addresses rdar://9816668, rdar://10043614, rdar://8434668, and others.
Please direct high-level questions about this patch to management.

Delete #if 0 code accidentally left in.

llvm-svn: 143188
 2011-10-28 09:55:57 +00:00
Dan Gohman
484df993bd Eliminate LegalizeOps' LegalizedNodes map and have it just call RAUW 
on every node as it legalizes them. This makes it easier to use
hasOneUse() heuristics, since unneeded nodes can be removed from the
DAG earlier.

Make LegalizeOps visit the DAG in an operands-last order. It previously
used operands-first, because LegalizeTypes has to go operands-first, and
LegalizeTypes used to be part of LegalizeOps, but they're now split.
The operands-last order is more natural for several legalization tasks.
For example, it allows lowering code for nodes with floating-point or
vector constants to see those constants directly instead of seeing the
lowered form (often constant-pool loads). This makes some things
somewhat more complicated today, though it ought to allow things to be
simpler in the future. It also fixes some bugs exposed by Legalizing
using RAUW aggressively.

Remove the part of LegalizeOps that attempted to patch up invalid chain
operands on libcalls generated by LegalizeTypes, since it doesn't work
with the new LegalizeOps traversal order. Instead, define what
LegalizeTypes is doing to be correct, and transfer the responsibility
of keeping calls from having overlapping calling sequences into the
scheduler.

Teach the scheduler to model callseq_begin/end pairs as having a
physical register definition/use to prevent calls from having
overlapping calling sequences. This is also somewhat complicated, though
there are ways it might be simplified in the future.

This addresses rdar://9816668, rdar://10043614, rdar://8434668, and others.
Please direct high-level questions about this patch to management.

llvm-svn: 143177
 2011-10-28 01:29:32 +00:00
Jim Grosbach
dac7815a91 ARM Allow 'q' registers in VLD/VST vector lists. 
Just treat it as if the constituent D registers where specified.

rdar://10348896

llvm-svn: 143167
 2011-10-28 00:06:50 +00:00
Owen Anderson
d35df0aaeb Add some NEON stores to the VLD decoding hook that were accidentally omitted previously. 
llvm-svn: 143162
 2011-10-27 22:53:10 +00:00
Jakob Stoklund Olesen
de21509dcd Also set addrmode6 alignment when align==size. 
Previously, we were only setting the alignment bits on over-aligned
loads and stores.

llvm-svn: 143160
 2011-10-27 22:39:16 +00:00
Jim Grosbach
67d4fb4bc0 ARM isel for vld1, opcode selection for register stride post-index pseudos. 
llvm-svn: 143158
 2011-10-27 22:25:42 +00:00
Evan Cheng
75271d09f1 Avoid partial CPSR dependency from loop backedges. rdar://10357570 
llvm-svn: 143145
 2011-10-27 21:21:05 +00:00
Jim Grosbach
4f7964293a Thumb2 t2LDMDB[_UPD] assembly parsing to recognize .w suffix. 
rdar://10348844

llvm-svn: 143110
 2011-10-27 17:33:59 +00:00
Jim Grosbach
e1ec953149 Thumb2 t2MVNi assembly parsing to recognize ".w" suffix. 
rdar://10348584

llvm-svn: 143108
 2011-10-27 17:16:55 +00:00
Chad Rosier
e76ba1b654 A branch predicated on a constant can just FastEmit an unconditional branch. 
llvm-svn: 143086
 2011-10-27 00:21:16 +00:00
Chad Rosier
e3141f4f8b Add a TODO comment. FastISel works by parsing each basic block from the bottom 
up.  Thus, improving the support for compares is goodness because it increases
the number of terminator instructions we can handle.  This creates many more 
opportunities for target specific fast-isel.

llvm-svn: 143079
 2011-10-26 23:34:37 +00:00
Chad Rosier
75378507e3 Factor a little more code into EmitCmp, which should have been done in the first 
place.  No functional change intended.

llvm-svn: 143078
 2011-10-26 23:25:44 +00:00
Chad Rosier
52109646da Use EmitCmp in SelectBranch. No functional change intended. 
llvm-svn: 143076
 2011-10-26 23:17:28 +00:00
Chad Rosier
3f38cb48de Factor out an EmitCmp function that can be used by both SelectCmp and 
SelectBranch.  No functional change intended.

llvm-svn: 143072
 2011-10-26 22:47:55 +00:00
Jim Grosbach
e3c6fa663f Thumb2 ldr pc-relative encoding fixes. 
We were parsing label references to the i12 encoding, which isn't right.
They need to go to the pci variant instead.

More of rdar://10348687

llvm-svn: 143068
 2011-10-26 22:22:01 +00:00
Jim Grosbach
4597f361f6 ARM parse parenthesized expressions for label references. 
Partial fix for rdar://10348687.

llvm-svn: 143063
 2011-10-26 21:14:08 +00:00
Lang Hames
d87e366c7f Make sure short memsets on ARM lower to stores, even when optimizing for size. 
llvm-svn: 143055
 2011-10-26 20:56:52 +00:00
Jim Grosbach
5a61a956cb Thumb2 remove redundant ".w" suffix from t2MVNCCi pattern. 
llvm-svn: 143034
 2011-10-26 17:28:15 +00:00
James Molloy
9afc8b08f7 Revert r142530 at least temporarily while a discussion is had on llvm-commits regarding exactly how much optsize should optimize for size over performance. 
llvm-svn: 143023
 2011-10-26 08:53:19 +00:00
Bill Wendling
b0dc0e18ca Use a worklist to prevent the iterator from becoming invalidated because of the 'removeSuccessor' call. Noticed in a Release+Asserts+Check buildbot. 
llvm-svn: 143018
 2011-10-26 07:16:18 +00:00
Evan Cheng
941d5c148f Revert part of r142530. The patch potentially hurts performance especially 
on Darwin platforms where -Os means optimize for size without hurting
performance.

llvm-svn: 143002
 2011-10-26 01:17:44 +00:00
Jim Grosbach
fabe0f2f0b ARM assembly parsing and encoding for VLD1 with writeback. 
Four entry register lists.

llvm-svn: 142882
 2011-10-25 00:14:01 +00:00
Jim Grosbach
e8a2edd71c Nuke dead code. Nothing generates the VLD1d64QPseudo_UPD instruction. 
llvm-svn: 142877
 2011-10-24 23:40:46 +00:00
Jim Grosbach
688186941f ARM assembly parsing and encoding for VLD1 w/ writeback. 
Three entry register list variation.

llvm-svn: 142876
 2011-10-24 23:26:05 +00:00
Eli Friedman
652497e03c Don't crash on variable insertelement on ARM. PR10258. 
llvm-svn: 142871
 2011-10-24 23:08:52 +00:00
Evan Cheng
b792a7d95b ARMConstantPoolMBB::print should print BB number. 
llvm-svn: 142867
 2011-10-24 23:01:03 +00:00
Jim Grosbach
cf4fba1dd0 ARM assembly parsing and encoding for VLD1 w/ writeback. 
One and two length register list variants.

llvm-svn: 142861
 2011-10-24 22:16:58 +00:00
Jim Grosbach
4a6508dd4e ARM refactor am6offset usage for VLD1. 
Split am6offset into fixed and register offset variants so the instruction
encodings are explicit rather than relying an a magic reg0 marker.
Needed to being able to parse these.

llvm-svn: 142853
 2011-10-24 21:45:13 +00:00
Owen Anderson
b0e09258e7 Fix a NEON disassembly case that was broken in the recent refactorings. As more of this code gets refactored, a lot of these manual decoding hooks should get smaller and/or go away entirely. 
llvm-svn: 142817
 2011-10-24 18:04:29 +00:00
Dan Gohman
898ed35860 Change this overloaded use of Sched::Latency to be an overloaded 
use of Sched::ILP instead, as Sched::Latency is going away.

llvm-svn: 142813
 2011-10-24 17:55:11 +00:00
Jim Grosbach
eceea163ef Thumb2 LDM instructions can target PC. Make sure to encode it. 
PR11220

llvm-svn: 142801
 2011-10-24 17:16:24 +00:00
Benjamin Kramer
03065133c3 Move various generated tables into read-only memory, fixing up const correctness along the way. 
llvm-svn: 142726
 2011-10-22 16:50:00 +00:00
Bill Wendling
66327a8d0e The different flavors of ARM have different valid subsets of registers. Check 
that the set of callee-saved registers is correct for the specific platform.
<rdar://problem/10313708> & ctor_dtor_count & ctor_dtor_count-2

llvm-svn: 142706
 2011-10-22 00:29:28 +00:00
Jim Grosbach
d964cf8939 Assembly parsing for 4-register sequential variant of VLD2. 
llvm-svn: 142704
 2011-10-21 23:58:57 +00:00