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43586 Commits

Author SHA1 Message Date
Rafael Espindola
cb1e3ad6bc Revert previous patch while I debug the darwin bootstrap failure. 
llvm-svn: 120246
 2010-11-28 16:22:59 +00:00
Rafael Espindola
975a3f8fa7 Factor some duplicated code into MCObjectStreamer::EmitLabel. 
llvm-svn: 120245
 2010-11-28 15:54:36 +00:00
Rafael Espindola
422c24b736 Avoid code duplication in the many unsupported EmitGPRel32Value implementations. 
llvm-svn: 120243
 2010-11-28 15:09:24 +00:00
Rafael Espindola
38c559954c Move the PTXMCAsmStreamer class to the .cpp file. 
llvm-svn: 120241
 2010-11-28 14:48:34 +00:00
Rafael Espindola
f77005db2b 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
Bob Wilson
3bb61d1932 Add support for NEON VLD2-dup instructions. 
llvm-svn: 120236
 2010-11-28 06:51:26 +00:00
Bob Wilson
3f245c3b4f Fix a comment typo. 
llvm-svn: 120235
 2010-11-28 06:51:19 +00:00
Bob Wilson
f4df482b0d 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
Bob Wilson
edf156f4af Add entry in getTargetNodeName() for ARMISD::VBICIMM. 
llvm-svn: 120233
 2010-11-28 06:51:11 +00:00
Anton Korobeynikov
598465c605 Move more PEI-related hooks to TFI 
llvm-svn: 120229
 2010-11-27 23:05:25 +00:00
Anton Korobeynikov
c87f68e32e Move callee-saved regs spills / reloads to TFI 
llvm-svn: 120228
 2010-11-27 23:05:03 +00:00
Rafael Espindola
45cd9713f2 Lower TLS_addr32 and TLS_addr64. 
llvm-svn: 120225
 2010-11-27 20:43:02 +00:00
Rafael Espindola
6f5680f4a0 Implement the data16 prefix. 
llvm-svn: 120224
 2010-11-27 20:29:45 +00:00
Benjamin Kramer
3355314332 Remove PIC16 remnants. 
llvm-svn: 120223
 2010-11-27 18:20:30 +00:00
Daniel Dunbar
4a5895d6ff 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
Daniel Dunbar
e869ed004c macho-dump: Add support for dumping symbol table entries. 
llvm-svn: 120218
 2010-11-27 13:52:53 +00:00
Daniel Dunbar
a1e3ba6a1c macho-dump: Add support for dumping string table data. 
llvm-svn: 120217
 2010-11-27 13:46:11 +00:00
Daniel Dunbar
2dd3ae7c9c macho-dump: Add support for dumping relocation entries. 
llvm-svn: 120216
 2010-11-27 13:39:48 +00:00
Daniel Dunbar
3aa435a0ac macho-dump: Add support for dumping sections. 
llvm-svn: 120215
 2010-11-27 13:33:15 +00:00
Daniel Dunbar
2525373652 macho-dump: Add support for dumping dysymtab indirect symbol table. 
llvm-svn: 120214
 2010-11-27 13:26:12 +00:00
Benjamin Kramer
4d1bd491b0 Unbreak build for newer GCCs. 
llvm-svn: 120205
 2010-11-27 09:08:25 +00:00
Daniel Dunbar
38307b5ad4 macho-dump: Add support for dumping symtab and dysymtab commands. 
llvm-svn: 120204
 2010-11-27 08:33:44 +00:00
Daniel Dunbar
44ac81f948 macho-dump: Add support for dumping segment load commands. 
llvm-svn: 120203
 2010-11-27 08:22:29 +00:00
Owen Anderson
8c948566d4 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
Daniel Dunbar
56381d8cc7 raw_ostream::write_escaped: Add a UseHexEscapes argument. 
llvm-svn: 120200
 2010-11-27 07:59:50 +00:00
Daniel Dunbar
a9f9d6d2db Fix a comment. 
llvm-svn: 120199
 2010-11-27 07:39:37 +00:00
Daniel Dunbar
9ff2982261 Object/Mach-O: Add header and load command information. 
llvm-svn: 120198
 2010-11-27 07:19:41 +00:00
Bob Wilson
3e64f6b309 Refactor. Set alignment bit in VLD1-dup instruction classes. 
llvm-svn: 120197
 2010-11-27 07:12:02 +00:00
Daniel Dunbar
7d054546a8 Object/Mach-O: Validate Mach-O magic and initialize format info. 
llvm-svn: 120195
 2010-11-27 06:39:22 +00:00
Bob Wilson
cbd6281807 Add NEON VLD1-dup instructions (load 1 element to all lanes). 
llvm-svn: 120194
 2010-11-27 06:35:16 +00:00
Bob Wilson
c66e4574f1 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
Daniel Dunbar
52f1774650 MC/Mach-O: Start stubbing out a Mach-O object file wrapper. 
llvm-svn: 120190
 2010-11-27 05:38:50 +00:00
Daniel Dunbar
9b9f0a4d16 Reduce nesting. 
llvm-svn: 120189
 2010-11-27 05:18:48 +00:00
Daniel Dunbar
c686ff034f MC/Mach-O: Migrate more constants into MachOFormat.h. 
llvm-svn: 120188
 2010-11-27 04:59:14 +00:00
Daniel Dunbar
bcc15fb05d 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
Daniel Dunbar
f050a00c17 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
Rafael Espindola
0641196380 Remove the unused TheTarget member. 
llvm-svn: 120168
 2010-11-26 04:24:21 +00:00
Michael J. Spencer
b2cfb3b443 Fix Whitespace. 
llvm-svn: 120166
 2010-11-26 04:16:08 +00:00
Jakob Stoklund Olesen
ac19a35444 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
Rafael Espindola
e3dc1c951c 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
Benjamin Kramer
35b0f6e5a6 Namespacify. 
llvm-svn: 120146
 2010-11-25 16:42:51 +00:00
Rafael Espindola
a8488b04e1 Factor some code to parseSectionFlags and fix the default type of a section. 
llvm-svn: 120145
 2010-11-25 15:32:56 +00:00
Nick Lewycky
f6fa6b29f4 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
Rafael Espindola
1a81f03f87 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
Rafael Espindola
97690e2d7d 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
Rafael Espindola
81ecba9559 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
Wesley Peck
66641a7c04 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
Wesley Peck
0e324a205e 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
Kalle Raiskila
edb28eb356 Use i8 as SETCC result type for i1 in SPU. 
llvm-svn: 120092
 2010-11-24 12:59:16 +00:00
Kalle Raiskila
b017eaea7b Allow for 'fcmp ogt' in SPU. 
Fix by Visa Putkinen!

llvm-svn: 120090
 2010-11-24 11:42:17 +00:00
Rafael Espindola
dc299d2615 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
Chris Lattner
80a065b474 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
Duncan Sands
b4e346d867 Rename SimplifyDistributed to the more meaningfull name SimplifyByFactorizing. 
llvm-svn: 120051
 2010-11-23 20:42:39 +00:00
Benjamin Kramer
8d7096e8ca 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
Duncan Sands
42e2ffcd33 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
Duncan Sands
20cae200d0 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
Jason W Kim
b1725a8110 Move the ARM reloc constants to Support/ELF.h 
llvm-svn: 120035
 2010-11-23 19:40:36 +00:00
Bob Wilson
ff0e6b1252 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
Benjamin Kramer
c8e6037e7d 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
Duncan Sands
45b231e80f 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
Duncan Sands
fce4583b6a Fix typo pointed out by Frits van Bommel and Marius Wachtler. 
llvm-svn: 120025
 2010-11-23 15:25:34 +00:00
Duncan Sands
555525adf4 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
Kalle Raiskila
f71cc94c91 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
Rafael Espindola
72c8de703d Implement the rex64 prefix. 
llvm-svn: 120017
 2010-11-23 11:23:24 +00:00
Duncan Sands
97ada840ed Expand a little on the description of what InstructionSimplify does. 
llvm-svn: 120016
 2010-11-23 10:50:08 +00:00
Duncan Sands
809b3e3634 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
Rafael Espindola
af4cd15f2a 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
Rafael Espindola
6f069fc35f 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
Chris Lattner
a830fc6a45 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
Rafael Espindola
a660c25883 Reuse data fragments while lowering. Patch by David Meyer. 
llvm-svn: 119999
 2010-11-23 05:49:35 +00:00
Wesley Peck
d589353ad0 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
Chris Lattner
d935e210ee add a 'LLVMConstIntOfArbitraryPrecision' api to the C api, 
patch by Greg Pfeil!

llvm-svn: 119989
 2010-11-23 02:47:22 +00:00
Chris Lattner
41281bd30f 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
Jason W Kim
287d5fb10b Fixed some style issues (no _, no spc after !) 
llvm-svn: 119986
 2010-11-22 22:05:16 +00:00
Rafael Espindola
492580fa9a Remove duplicated constants. Thanks to Jason for noticing it. 
llvm-svn: 119985
 2010-11-22 21:49:05 +00:00
Benjamin Kramer
b5a2a81094 InstCombine: Implement X - A*-B -> X + A*B. 
llvm-svn: 119984
 2010-11-22 20:31:27 +00:00
Jason W Kim
0941164ddb Make the <ARCH>ELFObjectWriter statics private 
llvm-svn: 119982
 2010-11-22 18:57:00 +00:00
Jason W Kim
243d3f5d8c Fix misplaced statics. 
llvm-svn: 119981
 2010-11-22 18:47:05 +00:00
Jason W Kim
dea9f17ab2 Kill trailing whitespace 
llvm-svn: 119979
 2010-11-22 18:42:07 +00:00
Jason W Kim
e2fece2f4c 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
Evan Cheng
e6d55cd247 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
Duncan Sands
73f0559779 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
Kalle Raiskila
8f1131e569 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
Rafael Espindola
e20c3d7c26 Add basic CFI methods to the streamer interface. 
llvm-svn: 119972
 2010-11-22 14:27:24 +00:00
Duncan Sands
ffcd1f61d9 Move the "gep undef" -> "undef" transform from instcombine to 
InstructionSimplify.

llvm-svn: 119970
 2010-11-22 13:42:49 +00:00
Rafael Espindola
5f582e980e Remove some #includes. 
llvm-svn: 119967
 2010-11-22 11:53:17 +00:00
Benjamin Kramer
632a91cba5 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
Duncan Sands
f0224e2119 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
Duncan Sands
99ff019c87 Fix a compiler warning about Kind being used uninitialized 
when assertions are disabled.

llvm-svn: 119962
 2010-11-22 09:38:00 +00:00
Eric Christopher
662ad8ba93 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
Wesley Peck
e25f241e37 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
Wesley Peck
911abf2bc0 Implement branch analysis in the MBlaze backend. 
llvm-svn: 119951
 2010-11-21 21:53:36 +00:00
Wesley Peck
470c56eef5 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
Wesley Peck
d77425e427 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
Chris Lattner
621c62e20d fix comment 
llvm-svn: 119948
 2010-11-21 19:05:34 +00:00
Chris Lattner
dd03f96698 apparently tailcalls are better on darwin/x86-64 than on linux? 
llvm-svn: 119947
 2010-11-21 18:59:20 +00:00
Benjamin Kramer
3fb7d5556c 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
Duncan Sands
c2b128ad7d 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
Duncan Sands
4ef7e7f158 Fix spelling. 
llvm-svn: 119941
 2010-11-21 12:43:13 +00:00
Bill Wendling
c5ab347eb6 More Thumb encodings. 
llvm-svn: 119940
 2010-11-21 11:49:36 +00:00