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1661 Commits

Author SHA1 Message Date
Jim Grosbach 745c52dd4e MachO: direct-to-object attribute for data-in-code markers. 
The target backend can support data-in-code load commands even when
the assembler doesn't, or vice-versa. Allow targets to opt-in for
direct-to-object.

PR13973.

llvm-svn: 164974
 2012-10-01 22:20:54 +00:00
Benjamin Kramer 4c8af550ad Provide a shortcut for MCObjectStreamer when emitting fills. 
Reduces runtime of i386-large-relocations.s by 10x in Release builds, even more
in Debug+Asserts builds.

llvm-svn: 164945
 2012-10-01 15:14:14 +00:00
Sylvestre Ledru 91ce36c986 Revert 'Fix a typo 'iff' => 'if''. iff is an abreviation of if and only if. See: http://en.wikipedia.org/wiki/If_and_only_if Commit 164767 
llvm-svn: 164768
 2012-09-27 10:14:43 +00:00
Sylvestre Ledru 721cffd53a Fix a typo 'iff' => 'if' 
llvm-svn: 164767
 2012-09-27 09:59:43 +00:00
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
Anton Korobeynikov 37d73002d4 Emit dtors into proper section while compiling in vcpp-compatible mode. 
Patch by Kai!

llvm-svn: 164476
 2012-09-23 15:53:47 +00:00
Preston Gurd 055006475e Add support for macro parameters/arguments delimited by spaces, 
to improve compatibility with GNU as.

Based on a patch by PaX Team.

Fixed assertion failures on non-Darwin and added additional test cases.

llvm-svn: 164248
 2012-09-19 20:36:12 +00:00
Preston Gurd 242ed3158a Support default parameters/arguments for assembler macros. 
This patch is based on the one by PaX Team.

Patch by Andy Zhang!

llvm-svn: 164246
 2012-09-19 20:29:04 +00:00
Preston Gurd eb3ebf16ab Enhance unmatched '.endr' directive error message in assembler. 
The directive can be matched with directives other than '.rept'

Patch by Andy Zhang!

llvm-svn: 164245
 2012-09-19 20:23:43 +00:00
Jim Grosbach 0aac6ce759 Tidy up. Minor formatting. 
llvm-svn: 164182
 2012-09-18 23:05:18 +00:00
Jim Grosbach b12b71ae6e Tidy up. 80 columns. 
llvm-svn: 164181
 2012-09-18 23:05:12 +00:00
Roman Divacky 0be33598ce Avoid symbol name clash when filling TOC. 
Patch by Adhemerval Zanella.

llvm-svn: 164141
 2012-09-18 17:10:37 +00:00
Andrew Trick ba7b921fcb Replaced ReInitMCSubtargetInfo with InitMCProcessor. 
Now where we used to call ReInitMCSubtargetInfo, we actually recompute
the same information as InitMCSubtargetInfo instead of only setting
the feature bits.

llvm-svn: 164105
 2012-09-18 05:33:15 +00:00
Andrew Trick 6e6d597b1c TargetSchedModel API. Implement latency lookup, disabled. 
llvm-svn: 164098
 2012-09-18 04:03:34 +00:00
Andrew Trick ab722bdd50 TableGen subtarget emitter. Initialize MCSubtargetInfo with the new machine model. 
llvm-svn: 164092
 2012-09-18 03:18:56 +00:00
Andrew Trick 8e7f202e32 Revert r164061-r164067. Most of the new subtarget emitter. 
I have to work out the Target/CodeGen header dependencies
before putting this back.

llvm-svn: 164072
 2012-09-17 23:00:42 +00:00
Andrew Trick 692b87c18f InitMCProcessor 
llvm-svn: 164066
 2012-09-17 22:19:12 +00:00
Andrew Trick f403ee7937 TargetSchedModel API. Implement latency lookup, disabled. 
llvm-svn: 164065
 2012-09-17 22:19:08 +00:00
Andrew Trick 0923f8183b TableGen subtarget emitter. Initialize MCSubtargetInfo with the new machine model. 
llvm-svn: 164061
 2012-09-17 22:18:55 +00:00
Craig Topper 2e6644c260 Use LLVM_DELETED_FUNCTION in place of 'DO NOT IMPLEMENT' comments. 
llvm-svn: 163970
 2012-09-15 16:23:52 +00:00
Andrew Trick d2a19da1b8 TargetSchedModel interface. To be implemented... 
llvm-svn: 163934
 2012-09-14 20:26:46 +00:00
Andrew Trick ac36af470c Define MC data tables for the new scheduling machine model. 
llvm-svn: 163933
 2012-09-14 20:26:41 +00:00
Dmitri Gribenko 5485acd440 Fix Doxygen issues: 
* wrap code blocks in \code ... \endcode;
* refer to parameter names in paragraphs correctly (\arg is not what most
  people want -- it starts a new paragraph);
* use \param instead of \arg to document parameters in order to be consistent
  with the rest of the codebase.

llvm-svn: 163902
 2012-09-14 14:57:36 +00:00
Jim Grosbach b7b750d480 Assembler: Darwin variables defined via .set are no-dead-strip. 
For gas compatibility.

rdar://12219394

llvm-svn: 163854
 2012-09-13 23:11:31 +00:00
Jim Grosbach d96ef194d9 MachO: Correctly mark symbol-difference variables as N_ABS. 
.set a, b - c + CONSTANT
d = b - c + CONSTANT

Both 'a' and 'd' should be marked as absolute symbols (N_ABS).

rdar://12219394

llvm-svn: 163853
 2012-09-13 23:11:25 +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
Jakob Stoklund Olesen 21e2f1c6e5 Add MCRI::getNumSubRegIndices() and start checking SubRegIndex ranges. 
Apparently, NumSubRegIndices was completely unused before. Adjust it by
one to include the null subreg index, just like getNumRegs() includes
the null register.

llvm-svn: 163628
 2012-09-11 16:34:02 +00:00
Dmitri Gribenko ca1e27be0d Remove redundant semicolons which are null statements. 
llvm-svn: 163547
 2012-09-10 21:26:47 +00:00
Benjamin Kramer 68b9f0583f Fix alignment of .comm and .lcomm on mingw32. 
For some reason .lcomm uses byte alignment and .comm log2 alignment so we can't
use the same setting for both. Fix this by reintroducing the LCOMM enum.
I verified this against mingw's gcc.

llvm-svn: 163420
 2012-09-07 21:08:01 +00:00
Benjamin Kramer ad100ec90e Contrary to what the documentation says, .lcomm alignment on COFF is in bytes, not power of 2. 
llvm-svn: 163405
 2012-09-07 18:56:10 +00:00
Benjamin Kramer 47f9ec92cb MC: Overhaul handling of .lcomm 
- Darwin lied about not supporting .lcomm and turned it into zerofill in the
  asm parser. Push the zerofill-conversion down into macho-specific code.
- This makes the tri-state LCOMMType enum superfluous, there are no targets
  without .lcomm.
- Do proper error reporting when trying to use .lcomm with alignment on a target
  that doesn't support it.
- .comm and .lcomm alignment was parsed in bytes on COFF, should be power of 2.
- Fixes PR13755 (.lcomm crashes on ELF).

llvm-svn: 163395
 2012-09-07 17:25:13 +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 77198de4d6 Constify subtarget info properly so that we dont cast away the const in 
the SubtargetInfoKV tables. Found by gcc48 -Wcast-qual.

llvm-svn: 163251
 2012-09-05 21:43:57 +00:00
Owen Anderson 9d0f923e7c Allow targets to specify a minimum supported NOP size when performing NOP padding. If the desired padding is smaller than the supported NOP size, 
we will enlarge the padding to make it work.

llvm-svn: 162870
 2012-08-29 22:18:56 +00:00
Craig Topper 5f96ca51b6 Add virtual keywords for methods that override the base class. 
llvm-svn: 162826
 2012-08-29 05:48:09 +00:00
Rafael Espindola 073ee7d0a8 Fix comment. 
llvm-svn: 162678
 2012-08-27 16:04:24 +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
Dmitri Gribenko 65340a69e1 Fix a bunch of -Wdocumentation warnings. 
llvm-svn: 162446
 2012-08-23 16:54:08 +00:00
Benjamin Kramer f29db275b2 Reduce duplicated hash map lookups. 
llvm-svn: 162362
 2012-08-22 15:37:57 +00:00
Jack Carter 77064c0590 For mips64 switch statements in subroutines could generate 
within the codegen EK_GPRel64BlockAddress. This was not 
supported for direct object output and resulted in an assertion.

This change adds support for EK_GPRel64BlockAddress for 
direct object.

One fallout from this is to turn on rela relocations 
for mips64 to match gas.

llvm-svn: 162334
 2012-08-22 00:49:30 +00:00
Rafael Espindola 2c06448360 Fix macros arguments with an underscore, dot or dollar in them. This is based 
on a patch by Andy/PaX. I added the support for dot and dollar.

llvm-svn: 162298
 2012-08-21 18:29:30 +00:00
Rafael Espindola af6da83a2c Make the wording in of the "expected identifier" error in the .macro directive 
consistent with the other "expected identifier" errors.
Extracted from the Andy/PaX patch. I added the test.

llvm-svn: 162291
 2012-08-21 17:12:05 +00:00
Rafael Espindola d2dc2a7af3 Use typedefs. Fix indentation. Extracted from the Andy/PaX patch. 
llvm-svn: 162283
 2012-08-21 16:06:48 +00:00
Rafael Espindola 5535863043 Remove unused variable. Extracted from the Andy/PaX patch. 
llvm-svn: 162282
 2012-08-21 16:01:14 +00:00
Rafael Espindola 3e5eb4263a Fix typo. Extracted from the Andy/PaX patch. 
llvm-svn: 162281
 2012-08-21 15:55:04 +00:00
Nick Lewycky 333449cd65 When emitting the PC range in an FDE, use the same data encoding for both ends 
of the range. Fixes PR13581!

llvm-svn: 161739
 2012-08-12 08:09:45 +00:00
Jim Grosbach bf387df302 Move [SU]LEB128 encoding to a utility header. 
These functions are very generic. There's no reason for them to
be tied to MCObjectWriter.

llvm-svn: 161545
 2012-08-08 23:56:06 +00:00
Rafael Espindola cb7eadfe7e Typedefs and indentation fixes from the Andy Zhang/PAX macro argument patch. 
Committing it first as it makes the "real" patch a lot easier to read.

llvm-svn: 161491
 2012-08-08 14:51:03 +00:00
Anton Korobeynikov cc8c539300 Fix for .pdata and .xdata section attributes on COFF. 
Patch by kai@redstar.de !

llvm-svn: 161487
 2012-08-08 12:46:46 +00:00
Bill Wendling ce4fe41d21 Add `.pushsection', `.popsection', and `.previous' directives to Darwin ASM. 
There are situations where inline ASM may want to change the section -- for
instance, to create a variable in the .data section. However, it cannot do this
without (potentially) restoring to the wrong section. E.g.:

  asm volatile (".section __DATA, __data\n\t"
                ".globl _fnord\n\t"
                "_fnord: .quad 1f\n\t"
                ".text\n\t"
                "1:" :::);

This may be wrong if this is inlined into a function that has a "section"
attribute. The user should use `.pushsection' and `.popsection' here instead.

The addition of `.previous' is added for completeness.
<rdar://problem/12048387>

llvm-svn: 161477
 2012-08-08 06:30:30 +00:00