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43597 Commits

Author SHA1 Message Date
Bill Wendling
8f0b624061 Add Thumb encodings for REV instructions. 
llvm-svn: 120277
 2010-11-29 00:42:50 +00:00
Bill Wendling
d233cab1eb Add more Thumb encodings. 
llvm-svn: 120272
 2010-11-29 00:18:15 +00:00
Rafael Espindola
d5f118a011 Make EmitIntValue non virtual. 
llvm-svn: 120271
 2010-11-28 23:22:44 +00:00
Rafael Espindola
fdbf55e614 Forgot the MCPureStreamer::EmitValue in the previous commit. 
llvm-svn: 120270
 2010-11-28 23:13:47 +00:00
Rafael Espindola
4ba6ca3725 Move EmitValue to MCObjectStreamer. 
llvm-svn: 120269
 2010-11-28 23:08:47 +00:00
Rafael Espindola
9287c4b38f Move lowering of TLS_addr32 and TLS_addr64 to X86MCInstLower. 
llvm-svn: 120263
 2010-11-28 21:16:39 +00:00
Jay Foad
7378352505 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
Chris Lattner
a11c5c5c32 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
Chris Lattner
95c86a8aa6 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
Nicolas Geoffray
9705544e7c 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
Rafael Espindola
53ee16b7b6 Fixed verson of r120245. 
Factor some duplicated code into MCObjectStreamer::EmitLabel.

llvm-svn: 120248
 2010-11-28 17:18:55 +00:00
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