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Author SHA1 Message Date
Michael J. Spencer
898af0f235 Support/PathV2: Move current_path from path to fs and fix the Unix implementation. 
Unix bug spotted by Dan Gohman.

llvm-svn: 121090
 2010-12-07 01:22:31 +00:00
Bob Wilson
f909f96f2b Add an OpReinterpret operation to TableGen's NeonEmitter. 
An OpReinterpret entry is handled by translating it to OpCast intrinsics for
all combinations of source and destination types with the same total size.
This will be used to generate all the vreinterpret intrinsics.

llvm-svn: 121087
 2010-12-07 01:12:23 +00:00
Bob Wilson
6492963708 Fix whitespace. 
llvm-svn: 121086
 2010-12-07 01:12:19 +00:00
Rafael Espindola
c98cc0b286 Fix a crash reduced from gcc produced assembly. 
llvm-svn: 121085
 2010-12-07 01:09:54 +00:00
Owen Anderson
81f8b084e6 Second attempt at converting Thumb2's LDRpci, including updating the gazillion places that need to know about it. 
llvm-svn: 121082
 2010-12-07 00:45:21 +00:00
Devang Patel
7a95053a98 Add python scripts to extract debug info using LLDB and do comparison. 
llvm-svn: 121079
 2010-12-07 00:34:59 +00:00
Devang Patel
81b06f0d93 Add a simple breakpoint location printer. This will be used by upcoming "debug info in optimized code" quality test harness to set breakpoints at "interesting" locations. 
llvm-svn: 121078
 2010-12-07 00:33:43 +00:00
Rafael Espindola
8dad37785c Sorry for such a large commit. The summary is that only MachO cares about the 
actuall addresses in a .o file, so it is better to let the MachO writer compute
it.

This is good for two reasons. First, areas that shouldn't care about
addresses now don't have access to it. Second, the layout of each section
is independent. I should use this in a subsequent commit to speed it up.

Most of the patch is just removing the section address computation. The two
interesting parts are the change on how we handle padding in the end
of sections and how MachO can get the address of a-b when a and b are in
different sections.

Since now the expression evaluation normally doesn't know the section address,
it will think that a-b needs relocation and let the MachO writer know. Once
it has computed the section addresses, it calls back the expression evaluation
with the section addresses to resolve these expressions.

The remaining problem is the handling of padding. Currently it will create
a special alignment fragment at the end. Since that fragment doesn't update
the alignment of the section, it needs the real address to be computed.

Since now the layout will not compute a-b with a and b in different sections,
the only effect that the special alignment fragment has is update the
address size of the section. This can also be done by the MachO writer.

llvm-svn: 121076
 2010-12-07 00:27:36 +00:00
Jim Grosbach
2d361b9318 Add fixup for Thumb1 BL/BLX instructions. 
llvm-svn: 121072
 2010-12-06 23:57:07 +00:00
Frits van Bommel
1494a2f6fe Implement jump threading of 'indirectbr' by keeping track of whether we're looking for ConstantInt*s or BlockAddress*s. 
llvm-svn: 121066
 2010-12-06 23:36:56 +00:00
Devang Patel
12459bc442 Undefined value in reg 0 may need a marker to identify end of source range. 
This will be used to truncate live range of DBG_VALUE instruction by register allocator and friends.

llvm-svn: 121061
 2010-12-06 22:48:22 +00:00
Devang Patel
6fe7fe8dd4 If dbg_declare() or dbg_value() is not lowered by isel then emit DEBUG message instead of creating DBG_VALUE for undefined value in reg0. 
llvm-svn: 121059
 2010-12-06 22:39:26 +00:00
Rafael Espindola
82d3d8dc2c Use references to simplify the code a bit. 
llvm-svn: 121050
 2010-12-06 22:30:54 +00:00
Wesley Peck
ffdbf99b57 Adding bug fix that was suppose to be part of 121044. 
patch contributed by Jack Whitham!

llvm-svn: 121049
 2010-12-06 22:19:28 +00:00
Wesley Peck
996c76c27e Fixed reversed operands for IDIV and CMP instructions in MBlaze backend. 
Use BRAD instead of BRD for indirect branches in MBlaze backend.

patch contributed by Jack Whitham!

llvm-svn: 121044
 2010-12-06 22:06:49 +00:00
Jason W Kim
672ef014da Refactor ELFObjectWriter. 
+ ARM/X86/MBlaze now share a common RecordRelocation
+ ARM/X86/MBlaze arch specific routines are limited to GetRelocType()

llvm-svn: 121043
 2010-12-06 21:57:34 +00:00
Chris Lattner
599e271a46 replace a linear scan with a symtab lookup, reduce indentation. 
No functionality change.

llvm-svn: 121042
 2010-12-06 21:53:07 +00:00
Rafael Espindola
c726be7d0a use getSymbolOffset. 
llvm-svn: 121041
 2010-12-06 21:51:55 +00:00
Chris Lattner
2f134ca2cc Use a stronger predicate here, pointed out by Duncan 
llvm-svn: 121040
 2010-12-06 21:48:10 +00:00
Chris Lattner
2907722386 add some DEBUG statements. 
llvm-svn: 121038
 2010-12-06 21:13:51 +00:00
Wesley Peck
b168ddedaa Fix a 16-bit immediate value detection bug in the MBlaze delay slot filler. 
Address more hazards in the MBlaze delay slot filler.

patch contributed by Jack Whitham!

llvm-svn: 121037
 2010-12-06 21:11:01 +00:00
Rafael Espindola
fd0cc5d13f Another use of getSymbolOffset. 
llvm-svn: 121034
 2010-12-06 19:55:05 +00:00
Rafael Espindola
65c25aef87 Remove the instruction fragment to data fragment lowering since it was causing 
freed data to be read. I will open a bug to track it being reenabled.

llvm-svn: 121028
 2010-12-06 19:08:48 +00:00
Owen Anderson
8e9cb84ea2 Revert r121021, which broke the buildbots. 
llvm-svn: 121026
 2010-12-06 18:57:40 +00:00
Jim Grosbach
f2e0e808ba Trailing whitespace. 
llvm-svn: 121024
 2010-12-06 18:47:44 +00:00
Owen Anderson
0c51a02230 Improve handling of Thumb2 PC-relative loads by converting LDRpci (and friends) to Pseudos. 
llvm-svn: 121021
 2010-12-06 18:35:51 +00:00
Jim Grosbach
6c27b4f3cf Encode the register operand of ARM CondCode operands correctly. ARM::CPSR if 
the instruction is predicated, reg0 otherwise.

llvm-svn: 121020
 2010-12-06 18:30:57 +00:00
Jim Grosbach
c79c6290ee The ARM AsmMatcher needs to know that the CCOut operand is a register value, 
not an immediate. It stores either ARM::CPSR or reg0.

llvm-svn: 121018
 2010-12-06 18:21:12 +00:00
Devang Patel
a4d6774cf8 Do not try luck by using given name to create temporary file. In parallel builds it may not work. 
This time for .s file.

llvm-svn: 121016
 2010-12-06 18:04:39 +00:00
Rafael Espindola
3e954d16f4 Second try at making direct object emission produce the same results 
as llc + llvm-mc. This time ELF is not changed and I tested that llvm-gcc
bootstrap on darwin10 using darwin9's assembler and linker.

llvm-svn: 121006
 2010-12-06 17:27:56 +00:00
Rafael Espindola
4ec917db9b Revert previous two patches while I try to find out how to make both 
linux and darwin assemblers happy :-(

llvm-svn: 121004
 2010-12-06 15:35:15 +00:00
Rafael Espindola
ad6219b193 Update test for the extra =. 
llvm-svn: 121001
 2010-12-06 15:05:36 +00:00
Rafael Espindola
3dc2b4cba7 Add an EmitAbsValue helper method and use it in cases where we want to be sure 
that no relocations are used (on MochO).
Fixes llc producing different output from llc + llvm-mc.

llvm-svn: 121000
 2010-12-06 14:53:14 +00:00
Frits van Bommel
f7368778bc Fix clang warning: "extra ';' inside a class [-pedantic]". 
llvm-svn: 120998
 2010-12-06 10:48:11 +00:00
Chris Lattner
48a7310e08 Fix PR8735, a really terrible problem in the inliner's "alloca merging" 
optimization.

Consider:
static void foo() {
  A = alloca
  ...
}

static void bar() {
  B = alloca
  ...
  call foo();
}

void main() {
  bar()
}

The inliner proceeds bottom up, but lets pretend it decides not to inline foo
into bar.  When it gets to main, it inlines bar into main(), and says "hey, I
just inlined an alloca "B" into main, lets remember that.  Then it keeps going
and finds that it now contains a call to foo.  It decides to inline foo into
main, and says "hey, foo has an alloca A, and I have an alloca B from another
inlined call site, lets reuse it".  The problem with this of course, is that 
the lifetime of A and B are nested, not disjoint.

Unfortunately I can't create a reasonable testcase for this: the one in the
PR is both huge and extremely sensitive, because you minor tweaks end up
causing foo to get inlined into bar too early.  We already have tests for the
basic alloca merging optimization and this does not break them.

llvm-svn: 120995
 2010-12-06 07:52:42 +00:00
Chris Lattner
21587c9f65 improve comment 
llvm-svn: 120994
 2010-12-06 07:43:04 +00:00
Chris Lattner
71a4c43942 improve -debug output and comments a little. 
llvm-svn: 120993
 2010-12-06 07:38:40 +00:00
Michael J. Spencer
b31b7d5b4e Support/Windows: Make MinGW happy. 
llvm-svn: 120991
 2010-12-06 06:02:07 +00:00
Michael J. Spencer
244b426701 Support/FileSystem: Add directory_iterator implementation. 
llvm-svn: 120989
 2010-12-06 04:28:42 +00:00
Michael J. Spencer
36a2df800d Support/PathV2: Fix append to not add a slash to empty or root paths. 
llvm-svn: 120988
 2010-12-06 04:28:23 +00:00
Michael J. Spencer
61043e9f3a Support/Windows: Add ScopedHandle and move some clients over to it. 
llvm-svn: 120987
 2010-12-06 04:28:13 +00:00
Michael J. Spencer
68b70b5024 KillTheDoctor: Cleanup error_code usage. 
llvm-svn: 120986
 2010-12-06 04:28:01 +00:00
Michael J. Spencer
51890f109f KillTheDoctor: Fix spelling. 
llvm-svn: 120985
 2010-12-06 04:27:52 +00:00
Michael J. Spencer
e5298b0f07 Support/ADT: Move c_str() from SmallString to SmallVectorImpl. The Windows PathV2 
implementation needs it for wchar_t and SmallVectorImpl in general.

llvm-svn: 120984
 2010-12-06 04:27:42 +00:00
Che-Liang Chiou
cd2878d421 ptx: add shift instructions 
llvm-svn: 120982
 2010-12-06 04:00:03 +00:00
Rafael Espindola
0ba01a5b5c Remove the getAddress getter, initialize Ordinal in the constructor and use 
that on the ELF writer to detect a section we created.

llvm-svn: 120981
 2010-12-06 03:48:09 +00:00
Rafael Espindola
bf001eed4c Simplify a bit. 
llvm-svn: 120980
 2010-12-06 03:36:43 +00:00
Rafael Espindola
d361a448af Use getSymbolOffset on the COFF writer. 
llvm-svn: 120979
 2010-12-06 03:24:04 +00:00
Rafael Espindola
f56c11276e Don't use PadSectionToAlignment on windows. 
llvm-svn: 120978
 2010-12-06 03:03:44 +00:00
Rafael Espindola
1b2090ef24 Add a getSymbolOffset method and use it in the ELF writer. 
llvm-svn: 120977
 2010-12-06 02:57:26 +00:00