795f211418
Predicate encoding should be withing {}s.
...
llvm-svn: 120360
2010-11-30 00:05:25 +00:00
d4f1090948
two changes to DSE that shouldn't affect anything:
...
1. Don't bother trying to optimize:
lifetime.end(ptr)
store(ptr)
as it is undefined, and therefore shouldn't exist.
2. Move the 'storing a loaded pointer' xform up, simplifying
the may-aliased store code.
llvm-svn: 120359
2010-11-30 00:01:19 +00:00
318ce7cb3f
Fix the encoding of VLD4-dup alignment.
...
The only reasonable way I could find to do this is to provide an alternate
version of the addrmode6 operand with a different encoding function. Use it
for all the VLD-dup instructions for the sake of consistency.
llvm-svn: 120358
2010-11-30 00:00:42 +00:00
0b27b68164
Rename VLDnDUP instructions with double-spaced registers
...
in an attempt to make things a little more consistent.
llvm-svn: 120357
2010-11-30 00:00:38 +00:00
431ac4ef50
Add support for NEON VLD3-dup instructions.
...
The encoding for alignment in VLD4-dup instructions is still a work in progress.
llvm-svn: 120356
2010-11-30 00:00:35 +00:00
9de9a73433
Simplify definitions of the ARM eh.sjlj.*jmp pseudo instructions.
...
llvm-svn: 120354
2010-11-29 23:51:31 +00:00
0c51bb4b25
Parameterize ARMPseudoInst size property.
...
llvm-svn: 120353
2010-11-29 23:48:41 +00:00
cb803b043b
Add a few missing initializers.
...
llvm-svn: 120350
2010-11-29 23:41:10 +00:00
b4df1d5a3e
prune an llvmcontext include and simplify some code.
...
llvm-svn: 120347
2010-11-29 23:35:33 +00:00
6f3a90b549
Generalize the darwin wrapper hack to work with generic macho triples as well as darwin ones.
...
llvm-svn: 120346
2010-11-29 23:29:54 +00:00
32ff5586fc
Nuke trailing whitespace.
...
llvm-svn: 120344
2010-11-29 23:18:01 +00:00
9f0356b3cc
Nuke a FIXME. No need to be fancier here, as ARM handles constant pools
...
locations and formatting specially. rdar://7353441
llvm-svn: 120343
2010-11-29 23:09:20 +00:00
50d662b6cb
Provide Thumb2 encodings for basic loads and stores.
...
llvm-svn: 120340
2010-11-29 22:44:32 +00:00
9a133f623c
Mark Darwin call instructions as using "r7" to prevent the frame-register
...
assignment instructions from being moved below / above calls.
rdar://8690640
llvm-svn: 120339
2010-11-29 22:43:27 +00:00
d5cfca1e3d
Nuke dead isCodeGenOnly annotation and extraneous comment.
...
llvm-svn: 120338
2010-11-29 22:40:58 +00:00
1883d94630
tidy up.
...
llvm-svn: 120335
2010-11-29 22:38:48 +00:00
ee7c5659d7
Thumb encodings for conditional moves.
...
llvm-svn: 120334
2010-11-29 22:37:46 +00:00
7ec3d34553
Pseudo-ize Thumb2 jump tables with explicit MC lowering to the raw
...
instructions. This simplifies instruction printing and disassembly.
llvm-svn: 120333
2010-11-29 22:37:40 +00:00
ebad2f9d36
Support: Add PathV2 implementation.
...
llvm-svn: 120329
2010-11-29 22:28:51 +00:00
5da8cae9ec
Refactor some of the "disassembly-only" instructions into a base class. This
...
reduces some code duplication.
llvm-svn: 120326
2010-11-29 22:15:03 +00:00
2e8793482c
fix PR8677, patch by Jakub Staszak!
...
llvm-svn: 120325
2010-11-29 21:59:31 +00:00
43b0c6d94f
Update fastisel for the changes in r120272.
...
llvm-svn: 120324
2010-11-29 21:56:23 +00:00
28218aa8f1
Transform (extractvalue (load P), ...) to (load (gep P, 0, ...)) if the load has no other uses, shrinking the load.
...
llvm-svn: 120323
2010-11-29 21:56:20 +00:00
81af4f9eb1
Rename t2 TBB and TBH instructions to reference that they encode the jump table
...
data. Next up, pseudo-izing them.
llvm-svn: 120320
2010-11-29 21:28:32 +00:00
ba3a8fa7ab
Improving the factoring of several instruction encodings.
...
llvm-svn: 120317
2010-11-29 20:38:48 +00:00
a98214de10
Teach ConstantFoldInstruction() how to fold insertvalue and extractvalue.
...
llvm-svn: 120316
2010-11-29 20:36:52 +00:00
54c9eb6fff
Now to chant the magical incantation that will exorcise the System library
...
from LLVM forever:
grep -lR "llvm/System" * | grep -v .svn | xargs sed -ie 's#llvm/System#llvm/Support#g'
llvm-svn: 120314
2010-11-29 19:44:50 +00:00
77ab165afe
Add support for NEON VLD3-dup instructions.
...
llvm-svn: 120312
2010-11-29 19:35:29 +00:00
8022367809
Fix copy-and-paste errors in VLD2-dup scheduling itineraries.
...
llvm-svn: 120311
2010-11-29 19:35:23 +00:00
58bc36a3a9
ARM Pseudo-ize tBR_JTr.
...
llvm-svn: 120310
2010-11-29 19:32:47 +00:00
e9608b3f01
Thumb2 encodings for MSR and MRS.
...
llvm-svn: 120309
2010-11-29 19:29:15 +00:00
2fdf32fa2c
Thumb2 encodings for system instructions.
...
llvm-svn: 120307
2010-11-29 19:22:08 +00:00
b044bc67f4
Thumb2 encodings for branches and IT blocks.
...
llvm-svn: 120306
2010-11-29 18:54:38 +00:00
0591656b13
The ARM BR_JT* pseudos don't need to use the printer jtblock_operand node to
...
get the pretty-printer. That's handled explicityly by the MC lowering now.
llvm-svn: 120305
2010-11-29 18:53:24 +00:00
ab425d8360
I swear I did a make clean and make before committing all this...
...
llvm-svn: 120304
2010-11-29 18:47:54 +00:00
150b1ad7f8
Switch ARM BR_JTm and BR_JTr instructions to be MC-expanded pseudos.
...
llvm-svn: 120303
2010-11-29 18:37:44 +00:00
4d2e1501ad
Missed a spot.
...
llvm-svn: 120301
2010-11-29 18:29:55 +00:00
447762da85
Merge System into Support.
...
llvm-svn: 120298
2010-11-29 18:16:10 +00:00
1ff0bfa28f
Handle lshr for i128 correctly on SPU also when
...
shiftamount > 7.
llvm-svn: 120288
2010-11-29 14:44:28 +00:00
dc620afd1e
Enable PostRA scheduling for SPU.
...
This speeds up selected test cases with up to
5% - no slowdowns observed.
llvm-svn: 120286
2010-11-29 10:30:25 +00:00
1842ada3ad
Allow machine LICM to do its job on SPU.
...
-return a sensible value for register pressure
-add pattern to 'ila' instrucion
llvm-svn: 120285
2010-11-29 10:08:09 +00:00
427add8f24
Add missing i128 case.
...
llvm-svn: 120284
2010-11-29 09:36:26 +00:00
abcab28f9b
Add some dead stores to pacify my least favorite GCC warning: may be
...
uninitialized. The warning is terrible, has incorrect source locations, and has
a huge false positive rate such as *all* of these.
If anyone has a better solution, please let me know. Alternatively, I'll
happily add -Wno-uninitialized to the -Werror build mode. Maybe I can even do
it *only* when building with GCC instead of Clang.
llvm-svn: 120281
2010-11-29 01:41:13 +00:00
232e52cfb7
Add more Thumb encodings.
...
llvm-svn: 120279
2010-11-29 01:07:48 +00:00
ccba1a8d95
More Thumb encodings.
...
llvm-svn: 120278
2010-11-29 01:00:43 +00:00
9600e97c60
Add Thumb encodings for REV instructions.
...
llvm-svn: 120277
2010-11-29 00:42:50 +00:00
775899eb2e
Add more Thumb encodings.
...
llvm-svn: 120272
2010-11-29 00:18:15 +00:00
e5e1f9ad0f
Make EmitIntValue non virtual.
...
llvm-svn: 120271
2010-11-28 23:22:44 +00:00
0710e3771f
Forgot the MCPureStreamer::EmitValue in the previous commit.
...
llvm-svn: 120270
2010-11-28 23:13:47 +00:00
a084fd6e9d
Move EmitValue to MCObjectStreamer.
...
llvm-svn: 120269
2010-11-28 23:08:47 +00:00
c4774795ce
Move lowering of TLS_addr32 and TLS_addr64 to X86MCInstLower.
...
llvm-svn: 120263
2010-11-28 21:16:39 +00:00
3447fb01c0
PR5207: change APInt::doubleToBits() and APInt::floatToBits() to be
...
static methods that return a new APInt.
llvm-svn: 120261
2010-11-28 21:04:48 +00:00
7e8a99b1c3
fix PR8686, accepting a 'b' suffix at the end of all the setcc
...
instructions. I choose to handle this with an asmparser hack,
though it could be handled by changing all the instruction definitions
to allow be "setneb" instead of "setne". The asm parser hack is
better in this case, because we want the disassembler to produce
setne, not setneb.
llvm-svn: 120260
2010-11-28 20:23:50 +00:00
a7e04b04c5
add a function to the C api to get the context out of a module, patch
...
by Eric Dobson!
llvm-svn: 120259
2010-11-28 20:03:44 +00:00
235b66c40f
When emitting a single function with cppgen=function, you don't want to emit
...
initializers of global variables used in the function.
Also make sure to emit the operands of a constant.
llvm-svn: 120253
2010-11-28 18:00:53 +00:00
e5b7415b21
Fixed verson of r120245.
...
Factor some duplicated code into MCObjectStreamer::EmitLabel.
llvm-svn: 120248
2010-11-28 17:18:55 +00:00
1679580cc9
Revert previous patch while I debug the darwin bootstrap failure.
...
llvm-svn: 120246
2010-11-28 16:22:59 +00:00
d4b3feb3f7
Factor some duplicated code into MCObjectStreamer::EmitLabel.
...
llvm-svn: 120245
2010-11-28 15:54:36 +00:00
b746531c2c
Avoid code duplication in the many unsupported EmitGPRel32Value implementations.
...
llvm-svn: 120243
2010-11-28 15:09:24 +00:00
164c797676
Move the PTXMCAsmStreamer class to the .cpp file.
...
llvm-svn: 120241
2010-11-28 14:48:34 +00:00
8a3a7923eb
Define generic 1, 2 and 4 byte pc relative relocations. They are common
...
and at least the 4 byte one will be needed to implement the .cfi_* directives.
llvm-svn: 120240
2010-11-28 14:17:56 +00:00
2d790df105
Add support for NEON VLD2-dup instructions.
...
llvm-svn: 120236
2010-11-28 06:51:26 +00:00
f9b96c474f
Fix a comment typo.
...
llvm-svn: 120235
2010-11-28 06:51:19 +00:00
04b2c94205
Another minor refactoring for VLD1DUP instructions.
...
The op11_8 field is the same for all of them so put it in the instruction
classes instead of specifying it separately for each instruction.
llvm-svn: 120234
2010-11-28 06:51:15 +00:00
62a6f7eda6
Add entry in getTargetNodeName() for ARMISD::VBICIMM.
...
llvm-svn: 120233
2010-11-28 06:51:11 +00:00
7283b8d18c
Move more PEI-related hooks to TFI
...
llvm-svn: 120229
2010-11-27 23:05:25 +00:00
d08fbd19f5
Move callee-saved regs spills / reloads to TFI
...
llvm-svn: 120228
2010-11-27 23:05:03 +00:00
5d882894d8
Lower TLS_addr32 and TLS_addr64.
...
llvm-svn: 120225
2010-11-27 20:43:02 +00:00
eab0800695
Implement the data16 prefix.
...
llvm-svn: 120224
2010-11-27 20:29:45 +00:00
f2d08136bf
Remove PIC16 remnants.
...
llvm-svn: 120223
2010-11-27 18:20:30 +00:00
e308b8edab
macho-dump: Add support for --dump-section-data and tweak a few format strings.
...
llvm-svn: 120219
2010-11-27 13:58:16 +00:00
83224fc391
macho-dump: Add support for dumping symbol table entries.
...
llvm-svn: 120218
2010-11-27 13:52:53 +00:00
8680ce6ffc
macho-dump: Add support for dumping string table data.
...
llvm-svn: 120217
2010-11-27 13:46:11 +00:00
0ac77d526d
macho-dump: Add support for dumping relocation entries.
...
llvm-svn: 120216
2010-11-27 13:39:48 +00:00
5867690cfa
macho-dump: Add support for dumping sections.
...
llvm-svn: 120215
2010-11-27 13:33:15 +00:00
c983afc5a1
macho-dump: Add support for dumping dysymtab indirect symbol table.
...
llvm-svn: 120214
2010-11-27 13:26:12 +00:00
032f08b556
Unbreak build for newer GCCs.
...
llvm-svn: 120205
2010-11-27 09:08:25 +00:00
33dab2a6ee
macho-dump: Add support for dumping symtab and dysymtab commands.
...
llvm-svn: 120204
2010-11-27 08:33:44 +00:00
a8070e0284
macho-dump: Add support for dumping segment load commands.
...
llvm-svn: 120203
2010-11-27 08:22:29 +00:00
8ba5f39f70
Second attempt at fixing the performance regressions introduced
...
by my recent GVN improvement. Looking through a single layer of
PHI nodes when attempting to sink GEPs, we need to iteratively
look through arbitrary PHI nests.
llvm-svn: 120202
2010-11-27 08:15:55 +00:00
65dc891942
raw_ostream::write_escaped: Add a UseHexEscapes argument.
...
llvm-svn: 120200
2010-11-27 07:59:50 +00:00
768a5e8004
Fix a comment.
...
llvm-svn: 120199
2010-11-27 07:39:37 +00:00
3977e7d22c
Object/Mach-O: Add header and load command information.
...
llvm-svn: 120198
2010-11-27 07:19:41 +00:00
d74cf2c8f6
Refactor. Set alignment bit in VLD1-dup instruction classes.
...
llvm-svn: 120197
2010-11-27 07:12:02 +00:00
feb1c5d830
Object/Mach-O: Validate Mach-O magic and initialize format info.
...
llvm-svn: 120195
2010-11-27 06:39:22 +00:00
c92eea0175
Add NEON VLD1-dup instructions (load 1 element to all lanes).
...
llvm-svn: 120194
2010-11-27 06:35:16 +00:00
3a63f9d852
Fix incorrect scheduling itineraries for NEON vld1/vst1 instructions.
...
I added these instructions recently but I have no idea where these "1"
values in the NextCycles field came from. As far as I can tell now,
these instruction stages are clearly intended to overlap.
llvm-svn: 120193
2010-11-27 06:35:09 +00:00
1df8d83a55
MC/Mach-O: Start stubbing out a Mach-O object file wrapper.
...
llvm-svn: 120190
2010-11-27 05:38:50 +00:00
4b128a5d4f
Reduce nesting.
...
llvm-svn: 120189
2010-11-27 05:18:48 +00:00
eab6e401fe
MC/Mach-O: Migrate more constants into MachOFormat.h.
...
llvm-svn: 120188
2010-11-27 04:59:14 +00:00
a5f50c16f7
MC/Mach-O: Switch to using MachOFormat.h.
...
- I'm leaving MachO.h, because I believe it has external consumers, but I would really like to eliminate it (we have stylistic disagreements with one another).
llvm-svn: 120187
2010-11-27 04:38:36 +00:00
2263ca4834
MC/Mach-O: Introduce Object/MachOFormat for describing purely platform / machine
...
independent information on the Mach object format, and move some stuff from
MachObjectWriter.cpp there.
llvm-svn: 120186
2010-11-27 04:19:38 +00:00
bf4a4e4ad9
Remove the unused TheTarget member.
...
llvm-svn: 120168
2010-11-26 04:24:21 +00:00
f13f442b1a
Fix Whitespace.
...
llvm-svn: 120166
2010-11-26 04:16:08 +00:00
a12095d26d
Move tree navigation to a new Path class that doesn't have to be a template.
...
The path also holds a reference to the root node, and that allows important
iterator accessors like start() and stop() to have no conditional code. (When
the compiler is clever enough to remove it.)
llvm-svn: 120165
2010-11-26 01:39:40 +00:00
7c2acd022e
Use multiple 0x66 prefixes so that all nops up to 15 bytes are a single instruction.
...
llvm-svn: 120147
2010-11-25 17:14:16 +00:00
aef5bd049f
Namespacify.
...
llvm-svn: 120146
2010-11-25 16:42:51 +00:00
f8e127eaf6
Factor some code to parseSectionFlags and fix the default type of a section.
...
llvm-svn: 120145
2010-11-25 15:32:56 +00:00
b8de00ee07
Treat a call of function pointer like a load of the pointer when considering
...
whether the pointer can be replaced with the global variable it is a copy of.
Fixes PR8680.
llvm-svn: 120126
2010-11-24 22:04:20 +00:00
9f75d5df0b
Behave a bit more like gnu as and use the symbol (instead of the section)
...
for any relocation to a symbol defined in a tls section.
llvm-svn: 120121
2010-11-24 21:57:39 +00:00
708ac4d6ad
Relocate with the symbol if the relocation is of kind NTPOFF.
...
Patch by David Meyer, I added the test.
llvm-svn: 120104
2010-11-24 19:23:50 +00:00
e98d483b71
Fix and add tests for all cases in x86 and x86_64 where gnu as implicitly
...
sets the type of a symbol to STT_TLS.
llvm-svn: 120100
2010-11-24 18:51:21 +00:00
8ad3b25633
Updating MBlaze .mask and .frame directives to match GCC's output and fixing regression introduced in 120095 by checking MCStreamer::hasRawTextSupport.
...
llvm-svn: 120097
2010-11-24 16:32:35 +00:00
51917b868d
1. Fixing error where basic block labels were not being printed out when they need to be for the MBlaze backend because AsmPrinter::isBlockOnlyReachableByFallthrough does not take into account delay slots.
...
2. Re-adding .mask and .frame directives in printed assembly.
3. Adding .ent and .end directives in printed assembly.
4. Minor cleanups to MBlaze backend.
llvm-svn: 120095
2010-11-24 15:39:32 +00:00
e0a1d2b32c
Use i8 as SETCC result type for i1 in SPU.
...
llvm-svn: 120092
2010-11-24 12:59:16 +00:00
97fc68774c
Allow for 'fcmp ogt' in SPU.
...
Fix by Visa Putkinen!
llvm-svn: 120090
2010-11-24 11:42:17 +00:00
4e70ac7b68
If a symbol is used as tls, mark it as tls even if not declare as so. Probably
...
fixes PR8659.
llvm-svn: 120076
2010-11-24 02:19:40 +00:00
6bf4e6d8b2
add a MemoryBuffer::getOpenFile method, which turns an open
...
file descriptor into a MemoryBuffer (and closes the FD).
llvm-svn: 120065
2010-11-23 22:20:27 +00:00
0488d564e1
Rename SimplifyDistributed to the more meaningfull name SimplifyByFactorizing.
...
llvm-svn: 120051
2010-11-23 20:42:39 +00:00
94a622af4c
The srem -> urem transform is not safe for any divisor that's not a power of two.
...
E.g. -5 % 5 is 0 with srem and 1 with urem.
Also addresses Frits van Bommel's comments.
llvm-svn: 120049
2010-11-23 20:33:57 +00:00
433c1679cf
Replace calls to ConstantFoldInstruction with calls to SimplifyInstruction
...
in two places that are really interested in simplified instructions, not
constants.
llvm-svn: 120044
2010-11-23 20:26:33 +00:00
bb2cd025a9
Constant folding here is pointless, because InstructionSimplify
...
(which does constant folding and more) is called a few lines
later.
llvm-svn: 120042
2010-11-23 20:24:21 +00:00
8e21bf84e8
Move the ARM reloc constants to Support/ELF.h
...
llvm-svn: 120035
2010-11-23 19:40:36 +00:00
d7d2cf7842
Recognize sign/zero-extended constant BUILD_VECTORs for VMULL operations.
...
We need to check if the individual vector elements are sign/zero-extended
values. For now this only handles constants values. Radar 8687140.
llvm-svn: 120034
2010-11-23 19:38:38 +00:00
b5afa65b0a
InstCombine: Reduce "X shift (A srem B)" to "X shift (A urem B)" iff B is positive.
...
This allows to transform the rem in "1 << ((int)x % 8);" to an and.
llvm-svn: 120028
2010-11-23 18:52:42 +00:00
60813f96e0
Propagate LeftDistributes and RightDistributes into their only uses.
...
Stylistic improvement suggested by Frits van Bommel.
llvm-svn: 120026
2010-11-23 15:28:14 +00:00
22df741687
Fix typo pointed out by Frits van Bommel and Marius Wachtler.
...
llvm-svn: 120025
2010-11-23 15:25:34 +00:00
adc7771f18
Exploit distributive laws (eg: And distributes over Or, Mul over Add, etc) in a
...
fairly systematic way in instcombine. Some of these cases were already dealt
with, in which case I removed the existing code. The case of Add has a bunch of
funky logic which covers some of this plus a few variants (considers shifts to be
a form of multiplication), which I didn't touch. The simplification performed is:
A*B+A*C -> A*(B+C). The improvement is to do this in cases that were not already
handled [such as A*B-A*C -> A*(B-C), which was reported on the mailing list], and
also to do it more often by not checking for "only one use" if "B+C" simplifies.
llvm-svn: 120024
2010-11-23 14:23:47 +00:00
e1b6c273b8
Division by pow-of-2 is not cheap on SPU, do it with
...
shifts.
llvm-svn: 120022
2010-11-23 13:27:59 +00:00
f6c05b1d01
Implement the rex64 prefix.
...
llvm-svn: 120017
2010-11-23 11:23:24 +00:00
a021988d64
Expand a little on the description of what InstructionSimplify does.
...
llvm-svn: 120016
2010-11-23 10:50:08 +00:00
763dec0ab8
Clarify that constant folding of instructions applies when all operands
...
are constant. There was in fact one exception to this (phi nodes) - so
remove that exception (InstructionSimplify handles this so there should
be no loss).
llvm-svn: 120015
2010-11-23 10:16:18 +00:00
5c1d4e3b1e
Invalidate the layout on any relaxation, not just Instructions. Bug found by David Meyer.
...
While here, remove unused argument and rename UpdateForSlide to Invalidate.
llvm-svn: 120009
2010-11-23 08:08:33 +00:00
3c7cab1402
Produce a relocation for pcrel absolute values. Based on a patch by David Meyer.
...
llvm-svn: 120006
2010-11-23 07:20:12 +00:00
2dd97d2d60
Revert functionality doug added in r98575 that was never
...
documented and only used by some clang stuff I just removed.
llvm-svn: 120002
2010-11-23 06:09:51 +00:00
6e13aa1d3b
Reuse data fragments while lowering. Patch by David Meyer.
...
llvm-svn: 119999
2010-11-23 05:49:35 +00:00
527da1b6e2
Renaming ISD::BIT_CONVERT to ISD::BITCAST to better reflect the LLVM IR concept.
...
llvm-svn: 119990
2010-11-23 03:31:01 +00:00
4329e078ac
add a 'LLVMConstIntOfArbitraryPrecision' api to the C api,
...
patch by Greg Pfeil!
llvm-svn: 119989
2010-11-23 02:47:22 +00:00
e5afa15b77
duncan's spider sense was right, I completely reversed the condition
...
on this instcombine xform. This fixes a miscompilation of 403.gcc.
llvm-svn: 119988
2010-11-23 02:42:04 +00:00
767a1e9adc
Fixed some style issues (no _, no spc after !)
...
llvm-svn: 119986
2010-11-22 22:05:16 +00:00
6e39a50fd5
Remove duplicated constants. Thanks to Jason for noticing it.
...
llvm-svn: 119985
2010-11-22 21:49:05 +00:00
f1ebb63161
InstCombine: Implement X - A*-B -> X + A*B.
...
llvm-svn: 119984
2010-11-22 20:31:27 +00:00
16b75262c4
Make the <ARCH>ELFObjectWriter statics private
...
llvm-svn: 119982
2010-11-22 18:57:00 +00:00
84ffdd5cf1
Fix misplaced statics.
...
llvm-svn: 119981
2010-11-22 18:47:05 +00:00
a262546df7
Kill trailing whitespace
...
llvm-svn: 119979
2010-11-22 18:42:07 +00:00
7c7d0ef287
Refactor the ELFRelocationEntry (pull up) and move the arch-specific statics to inside the class where it belongs.
...
Next step is to rationally break apart the RecordRelocation()
Probably the step will be to have 1 member function for ech slot of the ELFRelocationEntry()
llvm-svn: 119978
2010-11-22 18:41:13 +00:00
eb56dca4fd
Fix epilogue codegen to avoid leaving the stack pointer in an invalid
...
state. Previously Thumb2 would restore sp from fp like this:
mov sp, r7
sub, sp, #4
If an interrupt is taken after the 'mov' but before the 'sub', callee-saved
registers might be clobbered by the interrupt handler. Instead, try
restoring directly from sp:
add sp, #4
Or, if necessary (with VLA, etc.) use a scratch register to compute sp and
then restore it:
sub.w r4, r7, #8
mov sp, r7
rdar://8465407
llvm-svn: 119977
2010-11-22 18:12:04 +00:00
c133c54426
If a GEP index simply advances by multiples of a type of zero size,
...
then replace the index with zero.
llvm-svn: 119974
2010-11-22 16:32:50 +00:00
77d11d054c
Fix a bug with extractelement on SPU.
...
In the attached testcase, the element was
never extracted (missing rotate).
llvm-svn: 119973
2010-11-22 16:28:26 +00:00
3c227b0b89
Add basic CFI methods to the streamer interface.
...
llvm-svn: 119972
2010-11-22 14:27:24 +00:00
8a0f486e36
Move the "gep undef" -> "undef" transform from instcombine to
...
InstructionSimplify.
llvm-svn: 119970
2010-11-22 13:42:49 +00:00
556f203d64
Remove some #includes.
...
llvm-svn: 119967
2010-11-22 11:53:17 +00:00
24656c9583
Implement the "if (X == 6 || X == 4)" -> "if ((X|2) == 6)" optimization.
...
This currently only catches the most basic case, a two-case switch, but can be
extended later.
llvm-svn: 119964
2010-11-22 09:45:38 +00:00
c6648eb4c3
Don't keep track of inserted phis in PromoteMemoryToRegister: the information
...
is never used. Patch by Cameron Zwarich.
llvm-svn: 119963
2010-11-22 09:41:24 +00:00
5cadccc4ea
Fix a compiler warning about Kind being used uninitialized
...
when assertions are disabled.
llvm-svn: 119962
2010-11-22 09:38:00 +00:00
37b0736bdc
Pseudos default to 4byte size, let the instruction size field notice
...
that branch tables are special.
llvm-svn: 119954
2010-11-21 23:38:19 +00:00
7699d6cfe9
Implement ELF object file writing support for the MBlaze backend. Its not perfect yet, but it works for many tests.
...
llvm-svn: 119952
2010-11-21 22:06:28 +00:00
f1d3800e65
Implement branch analysis in the MBlaze backend.
...
llvm-svn: 119951
2010-11-21 21:53:36 +00:00
f4efd582ad
Make it a little bit more explicit that the MBlaze backend only supports upto
...
32-bit immediate values.
llvm-svn: 119950
2010-11-21 21:39:46 +00:00
7493e30d42
Fix an error in the MBlaze delay slot filler where instructions that already
...
fill a delay slot are moved to fill a different delay slot.
llvm-svn: 119949
2010-11-21 21:36:12 +00:00
fc9aead6fd
fix comment
...
llvm-svn: 119948
2010-11-21 19:05:34 +00:00
5d2262dc76
apparently tailcalls are better on darwin/x86-64 than on linux?
...
llvm-svn: 119947
2010-11-21 18:59:20 +00:00
585dfa2b3d
Initialize MemDep's TD member so buildbots don't trip over an uninitialized pointer (TD is passed to PHITransAddr).
...
I wonder why this didn't explode earlier.
llvm-svn: 119944
2010-11-21 15:21:46 +00:00
cf4bceba49
Add a rather pointless InstructionSimplify transform, inspired by recent constant
...
folding improvements: if P points to a type of size zero, turn "gep P, N" into "P".
More generally, if a gep index type has size zero, instcombine could replace the
index with zero, but that is not done here.
llvm-svn: 119942
2010-11-21 13:53:09 +00:00
1f86be9164
Fix spelling.
...
llvm-svn: 119941
2010-11-21 12:43:13 +00:00
22db31305f
More Thumb encodings.
...
llvm-svn: 119940
2010-11-21 11:49:36 +00:00
c01d679928
Add encoding for ARM "trap" instruction.
...
llvm-svn: 119938
2010-11-21 11:05:29 +00:00
219dabdf68
The "trap" instruction is one of this which doesn't have a condition code. Hack
...
the code to not add a "condition code" if it's trap.
llvm-svn: 119937
2010-11-21 10:56:05 +00:00
3acd02706a
- Give "trap" the correct encoding, at least according to Darwin's assembler.
...
- Add comments saying where the encodings for other instructions came from.
llvm-svn: 119936
2010-11-21 10:55:23 +00:00
6ce038082b
apply Dan's fix for PR8268 which allows constant folding to handle indexes over
...
zero sized elements. This allows us to compile:
#include <string>
void foo() { std::string s; }
into an empty function.
llvm-svn: 119933
2010-11-21 08:39:01 +00:00
b4cd1819fa
implement PR8524, apparently mainline gas accepts movq as an alias for movd
...
when transfering between i64 gprs and mmx regs.
llvm-svn: 119931
2010-11-21 08:18:57 +00:00
5957229659
rework some DSE paths to use the newly-public "getPointerDependencyFrom"
...
method in MemDep instead of inserting an instruction, doing a query,
then removing it. Neither operation is effectively cached.
llvm-svn: 119930
2010-11-21 08:06:10 +00:00
663ba91cc6
add "getLocation" method to AliasAnalysis for getting the source and
...
destination location of a memcpy/memmove. I'm not clear about whether
TBAA works on these, so I'm leaving it out for now. Dan, please revisit
this when convenient.
llvm-svn: 119928
2010-11-21 07:51:27 +00:00
e48c31ce33
implement PR8576, deleting dead stores with intervening may-alias stores.
...
llvm-svn: 119927
2010-11-21 07:34:32 +00:00
9165d9d2ac
add some random notes.
...
llvm-svn: 119925
2010-11-21 07:05:31 +00:00
7e484e0be7
Use by-name rather than by-order operand matching for some NEON encodings.
...
llvm-svn: 119923
2010-11-21 06:47:06 +00:00
f7e896138e
optimize:
...
void a(int x) { if (((1<<x)&8)==0) b(); }
into "x != 3", which occurs over 100 times in 403.gcc but in no
other program in llvm-test.
llvm-svn: 119922
2010-11-21 06:44:42 +00:00
9de0176ef8
tail calls on x86 are implemented.
...
llvm-svn: 119920
2010-11-21 06:10:27 +00:00
e040a46eb3
BR_JTadd is ARM-only, so use the proper pseudo class to get the predicate.
...
llvm-svn: 119918
2010-11-21 01:26:01 +00:00
26cb15a549
Handle PCRel relocations with absolute values. Fixes PR8656.
...
llvm-svn: 119917
2010-11-21 00:48:25 +00:00
58f9f58716
Implement PR8644: forwarding a memcpy value to a byval,
...
allowing the memcpy to be eliminated.
Unfortunately, the requirements on byval's without explicit
alignment are really weak and impossible to predict in the
mid-level optimizer, so this doesn't kick in much with current
frontends. The fix is to change clang to set alignment on all
byval arguments.
llvm-svn: 119916
2010-11-21 00:28:59 +00:00
c31de25137
A few more thumb instruction MC encodings.
...
llvm-svn: 119913
2010-11-20 22:52:33 +00:00
0a3c28bd6b
Rewrite address handling to use a structure with all the possible address
...
mode variables. Handle frame indexes in load/store and allocas again.
llvm-svn: 119912
2010-11-20 22:38:27 +00:00
d0aec3bf64
STRH only needs the additional operand, not t2STRH. Also invert conditional
...
to match the one from the load emitter above.
llvm-svn: 119911
2010-11-20 22:01:38 +00:00
ddd1b7b801
Simplify code. No change in functionality.
...
llvm-svn: 119908
2010-11-20 18:43:35 +00:00
36590fc72a
Make this compile on case-sensitive file systemsw
...
llvm-svn: 119905
2010-11-20 16:14:57 +00:00
4687778398
Move some more hooks to TargetFrameInfo
...
llvm-svn: 119904
2010-11-20 15:59:32 +00:00
f6fb58a216
Silence Release build warnings about unused functions.
...
llvm-svn: 119903
2010-11-20 15:53:24 +00:00
7c601ded34
On X86, MEMBARRIER, MFENCE, SFENCE, LFENCE are not target memory intrinsics,
...
so don't claim they are. They are allocated using DAG.getNode, so attempts
to access MemSDNode fields results in reading off the end of the allocated
memory. This fixes crashes with "llc -debug" due to debug code trying to
print MemSDNode fields for these barrier nodes (since the crashes are not
deterministic, use valgrind to see this). Add some nasty checking to try
to catch this kind of thing in the future.
llvm-svn: 119901
2010-11-20 11:25:00 +00:00
cf7fefb25c
Removing the useless test that I added recently. It was meant as an example, but not complicated enough to merit another test.
...
llvm-svn: 119898
2010-11-20 07:26:51 +00:00
ada75c5ad1
RABasic fix. Regalloc is responsible for updating block live ins.
...
llvm-svn: 119896
2010-11-20 02:57:05 +00:00
799ec1c4d6
Whitespace.
...
llvm-svn: 119895
2010-11-20 02:43:55 +00:00
284326bd69
Add more Thumb add instruction encodings.
...
llvm-svn: 119883
2010-11-20 01:18:47 +00:00
fe1de03629
Add Thumb encodings for some add instructions.
...
llvm-svn: 119882
2010-11-20 01:00:29 +00:00
e60fd5a9db
Add more encodings for Thumb instructions.
...
llvm-svn: 119881
2010-11-20 00:53:35 +00:00
0914d44fa4
Have the getAddrMode3OpValue() function in ARMCodeEmitter.cpp produce the same
...
value that the one in ARMMCCodeEmitter.cpp does.
llvm-svn: 119878
2010-11-20 00:26:37 +00:00
54df187f25
Check for _setjmp too, because it's also used.
...
llvm-svn: 119875
2010-11-20 00:03:09 +00:00
2aff392af9
Fix ARM LDR* post-indexed operand encoding.
...
llvm-svn: 119869
2010-11-19 23:14:43 +00:00
1825cc74f4
Encodings for the compare instructions.
...
llvm-svn: 119868
2010-11-19 23:14:32 +00:00
b4fd2c90e9
The Vm and Vn register fields must be the same for a register-register vmov.
...
llvm-svn: 119867
2010-11-19 23:12:43 +00:00
a5f048485f
Fix a cut-n-paste-error.
...
llvm-svn: 119866
2010-11-19 23:01:16 +00:00
ea326db47b
Document the new GVN number table structure.
...
llvm-svn: 119865
2010-11-19 22:48:40 +00:00
785952e5ac
Operand names
...
llvm-svn: 119864
2010-11-19 22:43:08 +00:00
5876e41c9f
trailing whitespace
...
llvm-svn: 119863
2010-11-19 22:42:55 +00:00
35e2d7f610
Don't need to save piecemeal now.
...
llvm-svn: 119862
2010-11-19 22:39:56 +00:00
cee83d6e6b
Update comment.
...
llvm-svn: 119861
2010-11-19 22:37:58 +00:00
a82fb71324
Add encodings for some of the thumb ADD instructions. Tests will come once the
...
asm parser can handle them.
llvm-svn: 119860
2010-11-19 22:37:33 +00:00
558b61e2d4
Update comment.
...
llvm-svn: 119859
2010-11-19 22:36:41 +00:00
7d8df3185f
Clarify operand names.
...
llvm-svn: 119858
2010-11-19 22:36:02 +00:00
fef5f315af
Refactor address mode handling into a single struct (ala x86), this
...
should give allow a wider range of addressing modes.
No functional change.
llvm-svn: 119856
2010-11-19 22:30:02 +00:00
48bf4f8e56
Fix encoding for ARM MLS instruction.
...
llvm-svn: 119855
2010-11-19 22:22:37 +00:00
dfb8c3bbfc
When folding addressing modes in CodeGenPrepare, attempt to look through PHI nodes
...
if all the operands of the PHI are equivalent. This allows CodeGenPrepare to undo
unprofitable PRE transforms.
llvm-svn: 119853
2010-11-19 22:15:03 +00:00
09d7bfd886
Add ARM encoding information for STRD.
...
llvm-svn: 119852
2010-11-19 22:14:31 +00:00
5a77b8b5c4
Shuffle things around a bit to keep like things together. Tidy up formatting.
...
llvm-svn: 119851
2010-11-19 22:06:57 +00:00
c92a5770df
Revert accidental commit.
...
llvm-svn: 119850
2010-11-19 22:06:18 +00:00
49a2e2384b
Change long binary encodings to use hex instead. It's more readable. Also
...
initialize missing bit.
llvm-svn: 119849
2010-11-19 22:02:18 +00:00
6e9aace4f3
Factor out operand encoding bits for ARM addressing mode 2 store instructions.
...
llvm-svn: 119846
2010-11-19 21:35:06 +00:00
09f6823eb6
Delete another dead class.
...
llvm-svn: 119844
2010-11-19 21:16:08 +00:00
e093e5f0dc
whitespace tweak.
...
llvm-svn: 119843
2010-11-19 21:14:37 +00:00
cf14a382ec
Fix a use after free. Patch by Frits van Bommel.
...
llvm-svn: 119842
2010-11-19 21:14:29 +00:00
d6e5c9f2fe
Refactor PICSTR* instructions to really be pseudos. Nuke dead classes.
...
llvm-svn: 119841
2010-11-19 21:14:02 +00:00
4a22eba616
Rename ARM .td class AIldst1 to AI2ldst for consistency with the other classes.
...
llvm-svn: 119840
2010-11-19 21:07:51 +00:00
003c6e700b
Add ARM binary encoding information for the rest of the indexed loads.
...
llvm-svn: 119821
2010-11-19 19:41:26 +00:00
88ff56caa3
Make isScalarToVector to return false if the node is a scalar. This will prevent
...
DAGCombine from making an illegal transformation of bitcast of a scalar to a
vector into a scalar_to_vector.
llvm-svn: 119819
2010-11-19 19:08:12 +00:00
8be14414f6
Added support for the Mach-O .symbol_resolver directive. rdar://8673046
...
llvm-svn: 119816
2010-11-19 18:39:33 +00:00
c6ac246671
Remove dead code.
...
llvm-svn: 119815
2010-11-19 18:18:37 +00:00
76aed40813
ARM LDRD binary encoding.
...
llvm-svn: 119812
2010-11-19 18:16:46 +00:00
d7a3550a5e
Remove hard tabs.
...
llvm-svn: 119810
2010-11-19 18:01:37 +00:00
2bb49e15a6
Remove trailing whitespace.
...
llvm-svn: 119806
2010-11-19 17:11:02 +00:00
2e49eaa92f
Avoid release build warnings.
...
llvm-svn: 119804
2010-11-19 16:36:02 +00:00
336021f758
Fix decoding ambiguities of stdrex and ldrex.
...
llvm-svn: 119801
2010-11-19 13:11:50 +00:00
c77ebcc9a5
Silence warning about an uninitialized variable.
...
llvm-svn: 119800
2010-11-19 11:37:26 +00:00
b238de0415
Remove threading of Xor over selects and phis, with an explanation
...
of why such threading is pointless.
llvm-svn: 119798
2010-11-19 09:20:39 +00:00
9900b4802e
Add a MCLineSectionOrder vector so that we produce the line tables in a
...
deterministic order.
llvm-svn: 119795
2010-11-19 07:41:23 +00:00
2debc86138
These instructions are thumb2 only.
...
llvm-svn: 119793
2010-11-19 06:28:11 +00:00
0eb2994626
Fix an obvious oversight.
...
llvm-svn: 119792
2010-11-19 06:15:10 +00:00
4031c5eb48
Don't attempt trivial coalescing for sub-register copies.
...
Patch by Krister Wombell!
llvm-svn: 119791
2010-11-19 05:45:24 +00:00
0b4c9aa9a9
Add an assert.
...
llvm-svn: 119788
2010-11-19 04:55:36 +00:00
345945e355
Add ADT/IntervalMap.
...
This is a sorted interval map data structure for small keys and values with
automatic coalescing and bidirectional iteration over coalesced intervals.
Except for coalescing intervals, it provides similar functionality to std::map.
It is however much more compact for small keys and values, and hopefully faster
too.
The container object itself can hold the first few intervals without any
allocations, then it switches to a cache conscious B+-tree representation. A
recycling allocator can be shared between many containers, even between
containers holding different types.
The IntervalMap is initially intended to be used with SlotIndex intervals for:
- Backing store for LiveIntervalUnion that is smaller and faster than std::set.
- Backing store for LiveInterval with less overhead than std::vector for typical
intervals and O(N log N) merging of large intervals. 99% of virtual registers
need 4 entries or less and would benefit from the small object optimization.
- Backing store for LiveDebugVariable which doesn't exist yet, but will track
debug variables during register allocation.
This is a work in progress. Missing items are:
- Performance metrics.
- erase().
- insert() shrinkage.
- clear().
- More performance metrics.
- Simplification and detemplatization.
llvm-svn: 119787
2010-11-19 04:47:19 +00:00
92ca933f6e
Fix llvm-gcc boostrap on OS X by avoiding printing sleb and uleb when
...
possible.
llvm-svn: 119785
2010-11-19 04:10:13 +00:00
b58867ccba
Change some methods in MCDwarf.cpp to be able to handle an arbitrary
...
MCStreamer instead of just MCObjectStreamer. Address changes cannot
be as efficient as we have to use DW_LNE_set_addres, but at least
most of the logic is shared.
This will be used so that, with CodeGen still using EmitDwarfLocDirective,
llvm-gcc is able to produce debug_line sections without needing an
assembler that supports .loc.
llvm-svn: 119777
2010-11-19 02:26:16 +00:00
945b776b6e
Add MC encodings for some Thumb instructions. Test for a few of them. The "bx
...
lr" instruction cannot be tested just yet. It requires matching a "condition
code", but adding one of those makes things go south quickly...
llvm-svn: 119774
2010-11-19 01:33:10 +00:00
09770251f6
Revert "Add ADT/IntervalMap.", GCC doesn't like it.
...
This reverts r119772.
llvm-svn: 119773
2010-11-19 01:21:03 +00:00
6d89171dcc
Add ADT/IntervalMap.
...
This is a sorted interval map data structure for small keys and values with
automatic coalescing and bidirectional iteration over coalesced intervals.
Except for coalescing intervals, it provides similar functionality to std::map.
It is however much more compact for small keys and values, and hopefully faster
too.
The container object itself can hold the first few intervals without any
allocations, then it switches to a cache conscious B+-tree representation. A
recycling allocator can be shared between many containers, even between
containers holding different types.
The IntervalMap is initially intended to be used with SlotIndex intervals for:
- Backing store for LiveIntervalUnion that is smaller and faster than std::set.
- Backing store for LiveInterval with less overhead than std::vector for typical
intervals and O(N log N) merging of large intervals. 99% of virtual registers
need 4 entries or less and would benefit from the small object optimization.
- Backing store for LiveDebugVariable which doesn't exist yet, but will track
debug variables during register allocation.
This is a work in progress. Missing items are:
- Performance metrics.
- erase().
- insert() shrinkage.
- clear().
- More performance metrics.
- Simplification and detemplatization.
llvm-svn: 119772
2010-11-19 01:14:40 +00:00
461e704a2c
Aligned and unaligned copies of the same string
...
were not hashing to the same value. Analysis
and patch by Frits van Bommel!
llvm-svn: 119770
2010-11-19 00:48:58 +00:00
20b5ea9858
Use array_pod_sort because the list is contiguous.
...
llvm-svn: 119769
2010-11-19 00:38:19 +00:00
f53e4d9fd1
Provide Thumb2 encodings for strex and ldrex.
...
llvm-svn: 119768
2010-11-19 00:28:38 +00:00
2aeb8b9361
Minor cleanups to a few llvm_unreachable() calls.
...
llvm-svn: 119767
2010-11-19 00:27:09 +00:00
2ecfcbd2aa
An 'unreachable' shouldn't have a '0 &&' prefix.
...
llvm-svn: 119762
2010-11-19 00:05:15 +00:00
2063b84297
Add support for parsing the writeback ("!") token.
...
llvm-svn: 119761
2010-11-18 23:43:05 +00:00
5a97bd873e
Fix .o emission of ARM movt/movw. MCSymbolRefExpr::VK_ARM_(HI||LO)16 for the .o path now works for ARM.
...
Note: lo16AllZero remains in ARMInstrInfo.td - It can be factored out when Thumb movt is repaired.
Existing tests cover this update.
llvm-svn: 119760
2010-11-18 23:37:15 +00:00
3517585249
Fix encodings for pkhbt, and fix some tests where I accidentally tested ARM mode instead of Thumb2.
...
llvm-svn: 119755
2010-11-18 23:29:56 +00:00
14ee344944
Move getInitialFrameState() to TargetFrameInfo
...
llvm-svn: 119754
2010-11-18 23:25:52 +00:00
a391c97bd0
ARM Encoding information for UXTAH and friends.
...
llvm-svn: 119753
2010-11-18 23:24:22 +00:00
cd68095650
Fix bug in DAGCombiner for ARM that was trying to do a ShiftCombine on illegal types (vector should be split first).
...
Added test case.
llvm-svn: 119749
2010-11-18 22:06:46 +00:00
0ab0f67925
Don't allocate the SmallVector of Registers. It gets messy figuring out who
...
should delete what when the object gets copied around. It's also making valgrind
upset.
llvm-svn: 119747
2010-11-18 21:50:54 +00:00
10839cb62c
Provide Thumb2 encodings for mov's that come from MOVCC SDNodes.
...
llvm-svn: 119744
2010-11-18 21:46:31 +00:00
1b91ae18ed
Add ARM encoding information for LDRH post-increment.
...
llvm-svn: 119743
2010-11-18 21:43:37 +00:00
0eecf5d201
Move hasFP() and few related hooks to TargetFrameInfo.
...
llvm-svn: 119740
2010-11-18 21:19:35 +00:00
c92331b984
Fix thinko: we must turn select(anyext, sext) into sext(select)
...
not anyext(select). Spotted by Frits van Bommel.
llvm-svn: 119739
2010-11-18 21:16:28 +00:00
Bill Wendling