6712251f41
Make DeleteDeadInstruction be a static function, move some code around.
...
llvm-svn: 120471
2010-11-30 21:58:14 +00:00
a964f4de76
Move X86InstrFPStack.td over to PseudoI as well.
...
llvm-svn: 120470
2010-11-30 21:57:32 +00:00
51d67ce2ff
switch RemoveAccessedObjects to use AliasAnalysis::Location to simplify
...
the code. We now get accurate sizes on Loads, though it surely doesn't
matter in practice.
llvm-svn: 120469
2010-11-30 21:47:58 +00:00
f80b39986f
two improvements to RemoveAccessedObjects:
...
1. if the underlying pointer passed in can be resolved
to any argument or alloca, then we don't need to scan.
Previously we would only avoid the scan if the alloca
or byval was actually considered dead.
2. The dead store processing code is itself completely
dead and didn't handle volatile stores right anyway,
so delete it. This allows simplifying the interface
to RemoveAccessedObjects.
llvm-svn: 120467
2010-11-30 21:38:30 +00:00
a87065807f
Migrate X86InstrControl.td to use PseudoI and fix a couple of 80-col violations
...
while I'm in there.
llvm-svn: 120466
2010-11-30 21:37:36 +00:00
7fe08b67fa
remove the "undead" terminology, which is nonstandard and never
...
made sense to me. We now have a set of dead stack objects, and
they become live when loaded. Fix a theoretical problem where
we'd pass in the wrong pointer to the alias query.
llvm-svn: 120465
2010-11-30 21:32:12 +00:00
127818d746
move call handling in handleEndBlock up a bit, and simplify it.
...
If the call might read all the allocas, stop scanning early.
Convert a vector to smallvector, shrink SmallPtrSet to 16 instead
of 64 to avoid crazy linear scans.
llvm-svn: 120463
2010-11-30 21:18:46 +00:00
d3a58c8fa1
Avoid exponential growth of a table. It feels like
...
there should be a better way to do this. PR 8679.
llvm-svn: 120457
2010-11-30 20:23:21 +00:00
0dc6246fc0
Provide Thumb2 encodings for a few miscellaneous instructions.
...
llvm-svn: 120455
2010-11-30 20:00:01 +00:00
60a8b3dab8
various cleanups and code simplification
...
llvm-svn: 120454
2010-11-30 19:48:15 +00:00
51c28a93cc
make getPointerSize a static function. Add ivars to DSE for
...
AA and MD pass info instead of using getAnalysis<> all over.
llvm-svn: 120453
2010-11-30 19:34:42 +00:00
77d79fa25f
reduce indentation, clean up TD use a bit.
...
llvm-svn: 120452
2010-11-30 19:28:23 +00:00
233890547d
Add FIXME
...
llvm-svn: 120451
2010-11-30 19:25:56 +00:00
299382e8cb
Add encoding support for Thumb2 PLD and PLI instructions.
...
llvm-svn: 120449
2010-11-30 19:19:31 +00:00
78b4efb472
Noticed this on inspection, fix and update some comments.
...
llvm-svn: 120447
2010-11-30 19:14:07 +00:00
b63ba73b1b
enhance isRemovable to refuse to delete volatile mem transfers
...
now that DSE hacks on them. This fixes a regression I introduced,
by generalizing DSE to hack on transfers.
llvm-svn: 120445
2010-11-30 19:12:10 +00:00
3b4e2ab5f3
Pseudo-ize ARM MOVPCRX
...
llvm-svn: 120442
2010-11-30 18:56:36 +00:00
ebcd9c9258
Provide encodings for a few more load/store variants.
...
llvm-svn: 120439
2010-11-30 18:38:28 +00:00
cd5e30f6c6
Pseudo-ize BX_CALL and friends. Remove dead instruction format classes.
...
rdar://8685712
llvm-svn: 120438
2010-11-30 18:30:19 +00:00
ea41dfe385
add TLI support indicating that jumps are more expensive than logical operations
...
and use this to disable a specific optimization. Patch by Micah Villmow!
llvm-svn: 120435
2010-11-30 18:12:52 +00:00
e9baf13657
ptx: add command-line options for gpu target and ptx version
...
llvm-svn: 120423
2010-11-30 10:14:14 +00:00
3a8ae23313
Fix some grammar in comments I noticed.
...
llvm-svn: 120416
2010-11-30 09:11:54 +00:00
ed13239dc0
This defaults to GenericDomain.
...
llvm-svn: 120415
2010-11-30 09:11:07 +00:00
15084f085d
PR5207: Make APInt::set(), APInt::clear() and APInt::flip() return void.
...
llvm-svn: 120413
2010-11-30 09:02:01 +00:00
ef62f57d4f
Implement a PseudoI class and transfer the sse instructions over to use
...
it.
llvm-svn: 120412
2010-11-30 08:57:23 +00:00
2d1bcf4aea
Fix insertion point in pcmp expander.
...
While I'm there, clean up too many \n even for me.
llvm-svn: 120411
2010-11-30 08:20:21 +00:00
1a86e8461a
Fix some cleanups from my last patch.
...
llvm-svn: 120410
2010-11-30 08:10:28 +00:00
811c936ed5
Add parsing for the Thumb t_addrmode_s4 addressing mode. This can almost
...
certainly be made more generic. But it does allow us to parse something like:
ldr r3, [r2, r4]
correctly in Thumb mode.
llvm-svn: 120408
2010-11-30 07:44:32 +00:00
d816204056
ptx: add ld instruction
...
support register and register-immediate addressing mode
todo: immediate and register-register addressing mode
llvm-svn: 120407
2010-11-30 07:34:44 +00:00
58b779e9c2
Rewrite the main DSE loop to be written in terms of reasoning
...
about pairs of AA::Location's instead of looking for MemDep's
"Def" predicate. This is more powerful and general, handling
memset/memcpy/store all uniformly, and implementing PR8701 and
probably obsoleting parts of memcpyoptimizer.
This also fixes an obscure bug with init.trampoline and i8
stores, but I'm not surprised it hasn't been hit yet. Enhancing
init.trampoline to carry the size that it stores would allow
DSE to be much more aggressive about optimizing them.
llvm-svn: 120406
2010-11-30 07:23:21 +00:00
fa6657cec0
Rewrite mwait and monitor support and custom lower arguments.
...
Fixes PR8573.
llvm-svn: 120404
2010-11-30 07:20:12 +00:00
e3ea1cba79
Add a puts optimization that converts puts() to putchar('\n').
...
llvm-svn: 120398
2010-11-30 06:19:18 +00:00
3590ef817c
rename a function and reduce some indentation, no functionality change.
...
llvm-svn: 120391
2010-11-30 05:30:45 +00:00
d4900a644c
Stub out a new LiveDebugVariables pass.
...
This analysis is going to run immediately after LiveIntervals. It will stay
alive during register allocation and keep track of user variables mentioned in
DBG_VALUE instructions.
When the register allocator is moving values between registers and the stack, it
is very hard to keep track of DBG_VALUE instructions. We usually get it wrong.
This analysis maintains a data structure that makes it easy to update DBG_VALUE
instructions.
llvm-svn: 120385
2010-11-30 02:17:10 +00:00
b438ef236c
remove the pointless check of MemoryUseIntrinsic from
...
is trivially dead, since these have side effects. This makes the
(misnamed) MemoryUseIntrinsic class dead, so remove it.
llvm-svn: 120382
2010-11-30 02:03:47 +00:00
d540a5d842
strength reduce this.
...
llvm-svn: 120381
2010-11-30 01:56:13 +00:00
afbc0c2b8c
getLocationForDest should work for memset as well.
...
llvm-svn: 120380
2010-11-30 01:48:20 +00:00
2227a8a192
rename doesClobberMemory -> hasMemoryWrite to be more specific, and
...
remove an actively-wrong comment.
llvm-svn: 120378
2010-11-30 01:37:52 +00:00
9d179d911d
clean up handling of 'free', detangling it from everything else.
...
It can be seriously improved, but at least now it isn't intertwined
with the other logic.
llvm-svn: 120377
2010-11-30 01:28:33 +00:00
ddce9f3757
Minor cleanups. No functional change.
...
llvm-svn: 120372
2010-11-30 00:50:22 +00:00
8294a30d54
s/ARM::BRIND/ARM::BX/g to coincide with r120366.
...
llvm-svn: 120371
2010-11-30 00:48:15 +00:00
90c4947df7
enhance basicaa to return "Mod" for a memcpy call when the
...
queried location doesn't overlap the source, and add a testcase.
llvm-svn: 120370
2010-11-30 00:43:16 +00:00
62718de2b9
Add correct encoding for "bl __aeabi_read_tp". However, the asm matcher isn't
...
able to match this yet.
llvm-svn: 120369
2010-11-30 00:34:08 +00:00
9a146372b5
Teach basicaa that memset's modref set is at worst "mod" and never
...
contains "ref".
Enhance DSE to use a modref query instead of a store-specific hack
to generalize the "ignore may-alias stores" optimization to handle
memset and memcpy.
llvm-svn: 120368
2010-11-30 00:28:45 +00:00
027bd47e3e
Rename BX/BRIND/etc patterns to clarify which is actually the BX instruction
...
and which are pseudos.
llvm-svn: 120366
2010-11-30 00:24:05 +00:00
85a8a72d85
Add some encoding for the adr instruction. Labels still need to be finished.
...
llvm-svn: 120365
2010-11-30 00:18:30 +00:00
e22c7322b8
Correct Thumb2 encodings for a much wider range of loads and stores.
...
llvm-svn: 120364
2010-11-30 00:14:31 +00:00
c3c754f750
my previous patch would cause us to start deleting some volatile
...
stores, fix and add a testcase.
llvm-svn: 120363
2010-11-30 00:12:39 +00:00
49408cef39
Make a few more ARM pseudo instructions actually use the PseudoInst base class.
...
llvm-svn: 120362
2010-11-30 00:09:06 +00:00
ce3d6ca564
Predicate encoding should be withing {}s. And general cleanup.
...
llvm-svn: 120361
2010-11-30 00:08:20 +00:00
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.
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llvm-svn: 120199
2010-11-27 07:39:37 +00:00
3977e7d22c
Object/Mach-O: Add header and load command information.
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llvm-svn: 120198
2010-11-27 07:19:41 +00:00
d74cf2c8f6
Refactor. Set alignment bit in VLD1-dup instruction classes.
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llvm-svn: 120197
2010-11-27 07:12:02 +00:00
feb1c5d830
Object/Mach-O: Validate Mach-O magic and initialize format info.
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llvm-svn: 120195
2010-11-27 06:39:22 +00:00
c92eea0175
Add NEON VLD1-dup instructions (load 1 element to all lanes).
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llvm-svn: 120194
2010-11-27 06:35:16 +00:00
3a63f9d852
Fix incorrect scheduling itineraries for NEON vld1/vst1 instructions.
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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.
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llvm-svn: 120190
2010-11-27 05:38:50 +00:00
4b128a5d4f
Reduce nesting.
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llvm-svn: 120189
2010-11-27 05:18:48 +00:00
eab6e401fe
MC/Mach-O: Migrate more constants into MachOFormat.h.
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llvm-svn: 120188
2010-11-27 04:59:14 +00:00
a5f50c16f7
MC/Mach-O: Switch to using MachOFormat.h.
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- 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
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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.
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llvm-svn: 120168
2010-11-26 04:24:21 +00:00
f13f442b1a
Fix Whitespace.
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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.
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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.
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llvm-svn: 120147
2010-11-25 17:14:16 +00:00
aef5bd049f
Namespacify.
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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.
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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
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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)
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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.
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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
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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.
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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.
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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.
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llvm-svn: 120092
2010-11-24 12:59:16 +00:00
97fc68774c
Allow for 'fcmp ogt' in SPU.
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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
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fixes PR8659.
llvm-svn: 120076
2010-11-24 02:19:40 +00:00
6bf4e6d8b2
add a MemoryBuffer::getOpenFile method, which turns an open
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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.
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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.
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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
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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
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(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
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llvm-svn: 120035
2010-11-23 19:40:36 +00:00
d7d2cf7842
Recognize sign/zero-extended constant BUILD_VECTORs for VMULL operations.
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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.
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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.
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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.
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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
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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
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shifts.
llvm-svn: 120022
2010-11-23 13:27:59 +00:00
f6c05b1d01
Implement the rex64 prefix.
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llvm-svn: 120017
2010-11-23 11:23:24 +00:00
a021988d64
Expand a little on the description of what InstructionSimplify does.
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llvm-svn: 120016
2010-11-23 10:50:08 +00:00
763dec0ab8
Clarify that constant folding of instructions applies when all operands
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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.
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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.
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llvm-svn: 120006
2010-11-23 07:20:12 +00:00
2dd97d2d60
Revert functionality doug added in r98575 that was never
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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.
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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.
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llvm-svn: 119990
2010-11-23 03:31:01 +00:00
4329e078ac
add a 'LLVMConstIntOfArbitraryPrecision' api to the C api,
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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
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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 !)
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llvm-svn: 119986
2010-11-22 22:05:16 +00:00
6e39a50fd5
Remove duplicated constants. Thanks to Jason for noticing it.
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llvm-svn: 119985
2010-11-22 21:49:05 +00:00
f1ebb63161
InstCombine: Implement X - A*-B -> X + A*B.
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llvm-svn: 119984
2010-11-22 20:31:27 +00:00
16b75262c4
Make the <ARCH>ELFObjectWriter statics private
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llvm-svn: 119982
2010-11-22 18:57:00 +00:00
84ffdd5cf1
Fix misplaced statics.
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llvm-svn: 119981
2010-11-22 18:47:05 +00:00
a262546df7
Kill trailing whitespace
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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.
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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
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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,
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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.
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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.
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llvm-svn: 119972
2010-11-22 14:27:24 +00:00
8a0f486e36
Move the "gep undef" -> "undef" transform from instcombine to
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InstructionSimplify.
llvm-svn: 119970
2010-11-22 13:42:49 +00:00
556f203d64
Remove some #includes.
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llvm-svn: 119967
2010-11-22 11:53:17 +00:00
24656c9583
Implement the "if (X == 6 || X == 4)" -> "if ((X|2) == 6)" optimization.
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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
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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
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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
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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.
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llvm-svn: 119952
2010-11-21 22:06:28 +00:00
f1d3800e65
Implement branch analysis in the MBlaze backend.
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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
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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
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fill a delay slot are moved to fill a different delay slot.
llvm-svn: 119949
2010-11-21 21:36:12 +00:00
Chris Lattner