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97 Commits

Author SHA1 Message Date
Craig Topper 2a6a08b1cd Rename virtual table anchors from Anchor() to anchor() for consistency with the rest of the tree. 
llvm-svn: 164666
 2012-09-26 06:36:36 +00:00
Manman Ren 49d684e1e2 Release build: guard dump functions with 
"#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)"

No functional change. Update r163344.

llvm-svn: 163679
 2012-09-12 05:06:18 +00:00
Manman Ren c3366ccecb Release build: guard dump functions with "ifndef NDEBUG" 
No functional change.

llvm-svn: 163344
 2012-09-06 19:55:56 +00:00
Roman Divacky ace4707ea6 Lower constant pools and jump tables via TOC on PPC64/SVR4. 
In collaboration with Adhemerval Zanella.

llvm-svn: 162562
 2012-08-24 16:26:02 +00:00
Akira Hatanaka f73e362758 Add VK_Mips_HIGHER and VK_Mips_HIGHEST to MCSymbolRefExpr::VariantKind. 
Test case will be added later when long branch patch is checked in.

llvm-svn: 160597
 2012-07-21 02:15:19 +00:00
Roman Divacky e3f15c98d1 Implement local-exec TLS on PowerPC. 
llvm-svn: 157935
 2012-06-04 17:36:38 +00:00
Craig Topper 6e80c28017 Prune some includes and forward declarations. 
llvm-svn: 153429
 2012-03-26 06:58:25 +00:00
Jim Grosbach 213039a5a1 ARM Thumb symbol references in assembly need the low bit set. 
Add support for a missed case when the symbols in a difference
expression are in the same section but not the same fragment.

rdar://10924681

llvm-svn: 151345
 2012-02-24 05:12:18 +00:00
Anton Korobeynikov c6b4017ce2 Add support for implicit TLS model used with MS VC runtime. 
Patch by Kai Nacke!

llvm-svn: 150307
 2012-02-11 17:26:53 +00:00
Craig Topper a2886c21d9 Convert assert(0) to llvm_unreachable 
llvm-svn: 149967
 2012-02-07 05:05:23 +00:00
James Molloy 6685c08e5f Add support for the R_ARM_TARGET1 relocation, which should be given to relocations applied to all C++ constructors and destructors. 
This enables the linker to match concrete relocation types (absolute or relative) with whatever library or C++ support code is being linked against.

llvm-svn: 149057
 2012-01-26 09:25:43 +00:00
Chandler Carruth f3e8502cc1 Add 'llvm_unreachable' to passify GCC's understanding of the constraints 
of several newly un-defaulted switches. This also helps optimizers
(including LLVM's) recognize that every case is covered, and we should
assume as much.

llvm-svn: 147861
 2012-01-10 18:08:01 +00:00
David Blaikie edbb58c577 Remove unnecessary default cases in switches that cover all enum values. 
llvm-svn: 147855
 2012-01-10 16:47:17 +00:00
Akira Hatanaka e2eed9649e Local dynamic TLS model for direct object output. Create the correct TLS MIPS 
ELF relocations.

Patch by Jack Carter.

llvm-svn: 147118
 2011-12-22 01:05:17 +00:00
Akira Hatanaka d519d8ca83 Remove function printMipsSymbolRef. 
llvm-svn: 144663
 2011-11-15 18:38:35 +00:00
Bruno Cardoso Lopes 82b077ec22 This is the first of several patches for Mips direct object generation. 
This first patch is for expression variable kinds.

Patch by Jack Carter!

llvm-svn: 142934
 2011-10-25 18:13:20 +00:00
Evan Cheng 5928e69d20 Rename TargetAsmBackend to MCAsmBackend; rename createAsmBackend to createMCAsmBackend. 
llvm-svn: 136010
 2011-07-25 23:24:55 +00:00
Evan Cheng f2596bc62a Move TargetAsmParser.h TargetAsmBackend.h and TargetAsmLexer.h to MC where they belong. 
llvm-svn: 135833
 2011-07-23 00:45:41 +00:00
Roman Divacky 4b5665a1f7 Fix emission of PPC64 assembler on non-darwin platforms by splitting 
VK_PPC_{HA,LO}16 into darwin and gas variants.

Darwin wants {ha,lo}16(symbol) while gnu as wants symbol@{ha,l}.

llvm-svn: 132802
 2011-06-09 20:25:38 +00:00
Daniel Dunbar dc3e4cc5ed MCExpr: Add FindAssociatedSection, which attempts to mirror the 'as' semantics 
that associate sections with expressions.

llvm-svn: 130517
 2011-04-29 18:00:03 +00:00
Chris Lattner 0ab5e2cded Fix a ton of comment typos found by codespell. Patch by 
Luis Felipe Strano Moraes!

llvm-svn: 129558
 2011-04-15 05:18:47 +00:00
Owen Anderson 9746286bec Add support for Thumb interworking addresses for symbol offsets that get constant folded very early. 
This fixes SPASS with -integrated-as.  <rdar://problem/9165399>

llvm-svn: 128037
 2011-03-21 23:13:43 +00:00
Rafael Espindola 8bac423ddb Add support for lowercase variants. 
llvm-svn: 124071
 2011-01-23 16:11:25 +00:00
Evan Cheng 965b3c7323 Model :upper16: and :lower16: as ARM specific MCTargetExpr. This is a step 
in the right direction. It eliminated some hacks and will unblock codegen
work. But it's far from being done. It doesn't reject illegal expressions,
e.g. (FOO - :lower16:BAR). It also doesn't work in Thumb2 mode at all.

llvm-svn: 123369
 2011-01-13 07:58:56 +00:00
Rafael Espindola 4124ab1255 Add r122359 back now that the bug in MCDwarfLineAddrFragment fragment has been 
fixed.

llvm-svn: 122448
 2010-12-22 22:16:24 +00:00
Rafael Espindola 0e14b61c0b Revert r122359 while I debug PR8845. 
llvm-svn: 122427
 2010-12-22 19:05:49 +00:00
Rafael Espindola 50ce2f06de Use references and simplify. 
llvm-svn: 122405
 2010-12-22 16:11:57 +00:00
Rafael Espindola a468ae02cb Simplify EvaluateAsAbsolute now that EvaluateAsRelocatableImpl does all 
the folding it can.

llvm-svn: 122359
 2010-12-21 20:51:42 +00:00
Rafael Espindola ee54636f0a Fixed version of 122160 (the previous one would fold undefined symbols). 
llvm-svn: 122167
 2010-12-19 04:18:56 +00:00
Rafael Espindola 9a2d4e04c7 Revert 122160 while I debug it. 
llvm-svn: 122165
 2010-12-19 03:22:05 +00:00
Rafael Espindola 6fd80a5593 Move all folding to AttemptToFoldSymbolOffsetDifference. 
llvm-svn: 122160
 2010-12-19 02:15:04 +00:00
Rafael Espindola b403e098a1 Merge isAbsolute into IsSymbolRefDifferenceFullyResolved. 
llvm-svn: 122148
 2010-12-18 06:27:54 +00:00
Rafael Espindola 8396dd0893 Remove the MCObjectFormat class. 
llvm-svn: 122147
 2010-12-18 05:37:28 +00:00
Rafael Espindola 293a7c1840 Add a FIXME and explain a hack. 
llvm-svn: 122144
 2010-12-18 04:19:20 +00:00
Rafael Espindola 1ea7f18caa Fix the note. 
llvm-svn: 122139
 2010-12-18 04:01:45 +00:00
Rafael Espindola 5004f4a9b5 Revert 122011, 122012, 122013, 122023 adding back an important optimization. 
I added a note, but suggestions on how to add a test are really welcome.

llvm-svn: 122138
 2010-12-18 03:57:21 +00:00
Daniel Dunbar 137d422e50 MC/Expr: Implemnt more aggressive folding during symbol evaluation using 
IsSymbolRefDifferenceFullyResolved(). For example, we will now fold away
something like:
--
_a:
...
L0:
...
L1:
...
.long (L1 - L0) / 2
--

llvm-svn: 122043
 2010-12-17 05:50:33 +00:00
Daniel Dunbar e491ea4630 MC/Expr: Simplify. 
llvm-svn: 122023
 2010-12-17 02:05:45 +00:00
Daniel Dunbar f89156da92 MC: Remove another dead MCAssembler argument, and update clients. 
llvm-svn: 122013
 2010-12-17 01:07:35 +00:00
Daniel Dunbar f15aeb8d01 MC: Remove dead MCAssembler argument -- Rafael, can you check the FIXME I added 
here?

llvm-svn: 122012
 2010-12-17 01:07:31 +00:00
Daniel Dunbar 9af1335b5d MC: Simplify (remove unnecessary MCAssembler argument, obsoleted by containment 
in MCAsmLayout).

llvm-svn: 122011
 2010-12-17 01:07:28 +00:00
Daniel Dunbar 33d571e2ae Write => in a more normal form. 
llvm-svn: 122009
 2010-12-17 01:07:22 +00:00
Daniel Dunbar 76793bac89 MC/Expr: Simplify (and add a FIXME). 
llvm-svn: 122008
 2010-12-17 01:07:20 +00:00
Daniel Dunbar 395a09922b MC/Expr: Add a doxyment. 
llvm-svn: 121988
 2010-12-16 18:36:25 +00:00
Rafael Espindola 93e3cf0ebd 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
Rafael Espindola 1055f72b97 Use references to simplify the code a bit. 
llvm-svn: 121050
 2010-12-06 22:30:54 +00:00
Rafael Espindola 46e40188f7 Simplify a bit. 
llvm-svn: 120980
 2010-12-06 03:36:43 +00:00
Rafael Espindola 57ab708bdd Try to resolve symbol differences early, and if successful create a plain 
data fragment. This reduces the time to assemble the test in 8711 from 60s to
54s.

llvm-svn: 120767
 2010-12-03 00:55:40 +00:00
Rafael Espindola bf792065a9 Add a fast path to EvaluateSymbolicAdd. This avoids computing symbol addresses 
which then avoids running EnsureValid.
This cuts the assembly time of the testcase in PR8711 from 2:50 minutes to 1
minute.

llvm-svn: 120697
 2010-12-02 07:53:12 +00:00
Jim Grosbach d82684c7fc Fix typo. 
llvm-svn: 119542
 2010-11-17 19:30:11 +00:00