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28 Commits

Author SHA1 Message Date
Charles Davis 8bdfafd505 Move everything depending on Object/MachOFormat.h over to Support/MachO.h. 
llvm-svn: 189728
 2013-09-01 04:28:48 +00:00
Charles Davis 1827bd8a6c Revert "Fix the build broken by r189315." and "Move everything depending on Object/MachOFormat.h over to Support/MachO.h." 
This reverts commits r189319 and r189315. r189315 broke some tests on what I
believe are big-endian platforms.

llvm-svn: 189321
 2013-08-27 05:38:30 +00:00
Charles Davis 0c6f71b40d Move everything depending on Object/MachOFormat.h over to Support/MachO.h. 
llvm-svn: 189315
 2013-08-27 05:00:43 +00:00
David Sehr 4c8979cd4d The current X86 NOP padding uses one long NOP followed by the remainder in 
one-byte NOPs.  If the processor actually executes those NOPs, as it sometimes
does with aligned bundling, this can have a performance impact.  From my
micro-benchmarks run on my one machine, a 15-byte NOP followed by twelve
one-byte NOPs is about 20% worse than a 15 followed by a 12.  This patch
changes NOP emission to emit as many 15-byte (the maximum) as possible followed
by at most one shorter NOP.

llvm-svn: 176464
 2013-03-05 00:02:23 +00:00
Eli Bendersky 4d9ada036c Renamed MCInstFragment to MCRelaxableFragment and added some comments. 
No change in functionality.

llvm-svn: 171822
 2013-01-08 00:22:56 +00:00
Eli Bendersky b2022f3a5a Fix a bogus comment 
llvm-svn: 170052
 2012-12-13 00:24:56 +00:00
Michael Liao 83a77c3288 Enable ELF machine type to be specified explicitly in X86 backend 
llvm-svn: 167027
 2012-10-30 17:33:39 +00:00
Benjamin Kramer 35480284e7 X86: Disable long nops for all cpus prior to pentiumpro/i686. 
llvm-svn: 165878
 2012-10-13 17:28:35 +00:00
Andrew Kaylor feb805fcf2 Support for generating ELF objects on Windows. 
This adds 'elf' as a recognized target triple environment value and overrides the default generated object format on Windows platforms if that value is present.  This patch also enables MCJIT tests on Windows using the new environment value.

llvm-svn: 165030
 2012-10-02 18:38:34 +00:00
Roman Divacky 5dd4ccb402 When creating MCAsmBackend pass the CPU string as well. In X86AsmBackend 
store this and use it to not emit long nops when the CPU is geode which
doesnt support them.

Fixes PR11212.

llvm-svn: 164132
 2012-09-18 16:08:49 +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
Craig Topper 1fcf5bcae1 Prune some includes 
llvm-svn: 153502
 2012-03-27 07:54:11 +00:00
Craig Topper b25fda95f6 Reorder includes in Target backends to following coding standards. Remove some superfluous forward declarations. 
llvm-svn: 152997
 2012-03-17 18:46:09 +00:00
Craig Topper 4ed7278ff4 Convert assert(0) to llvm_unreachable in X86 Target directory. 
llvm-svn: 149809
 2012-02-05 05:38:58 +00:00
Jim Grosbach aba3de99c0 Tidy up. MCAsmBackend naming conventions. 
llvm-svn: 148400
 2012-01-18 18:52:16 +00:00
Rafael Espindola a56ab0ede7 Section relative fixups are a coff concept, not a x86 one. Replace the 
x86 specific reloc_coff_secrel32 with a generic FK_SecRel_4.

llvm-svn: 147252
 2011-12-24 14:47:52 +00:00
Rafael Espindola 908d2ed14e Move x86 specific bits of the COFF writer to lib/Target/X86. 
llvm-svn: 147231
 2011-12-24 02:14:02 +00:00
Rafael Espindola b264d33854 Move the X86 specific bits of the ELF writer to the Target/X86 directory. 
Other targets will follow shortly.

llvm-svn: 147060
 2011-12-21 17:30:17 +00:00
Rafael Espindola 1ad4095d6b Reduce the exposure of Triple::OSType in the ELF object writer. This will 
avoid including ADT/Triple.h in many places when the target specific bits are
moved.

llvm-svn: 147059
 2011-12-21 17:00:36 +00:00
Rafael Espindola d3df3d3527 Add back the MC bits of 126425. Original patch by Nathan Jeffords. I added the 
asm parsing and testcase.

llvm-svn: 146801
 2011-12-17 01:14:52 +00:00
Jim Grosbach 25b63fa117 Move target-specific logic out of generic MCAssembler. 
Whether a fixup needs relaxation for the associated instruction is a
target-specific function, as the FIXME indicated. Create a hook for that
and use it.

llvm-svn: 145881
 2011-12-06 00:47:03 +00:00
Eli Friedman a5abd03a8d Simplify assertion, and avoid undefined shift. Based on patch by Ahmed Charles. 
llvm-svn: 141912
 2011-10-13 23:27:48 +00:00
Evan Cheng 2bb4035707 Move TargetRegistry and TargetSelect from Target to Support where they belong. 
These are strictly utilities for registering targets and components.

llvm-svn: 138450
 2011-08-24 18:08:43 +00:00
Chandler Carruth 2536b51aae Silence unused variable warnings in release builds. 
llvm-svn: 136956
 2011-08-05 01:08:21 +00:00
Jason W Kim 239370cb3f Fix http://llvm.org/bugs/show_bug.cgi?id=10583\n - test for 1 and 2 byte fixups to be added 
llvm-svn: 136954
 2011-08-05 00:53:03 +00:00
Jason W Kim e4df09f7ba Fix http://llvm.org/bugs/show_bug.cgi?id=10568 
Move the reloc size assert into AsmBackend - where it is more apropos.

llvm-svn: 136855
 2011-08-04 00:38:45 +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 b25310095f More refactoring. 
llvm-svn: 135939
 2011-07-25 19:33:48 +00:00