Commit Graph

9 Commits

Author SHA1 Message Date
Daniel Sanders 415c159e09 [mips][ias] Correct ELF eflags when Octeon is the target.
Reviewers: sdardis

Subscribers: petarj, mpf, dsanders, spetrovic, llvm-commits, sdardis

Differential Revision: http://reviews.llvm.org/D18899

llvm-svn: 269283
2016-05-12 11:31:19 +00:00
Alexander Kornienko f00654e31b Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)
Apparently, the style needs to be agreed upon first.

llvm-svn: 240390
2015-06-23 09:49:53 +00:00
Alexander Kornienko 70bc5f1398 Fixed/added namespace ending comments using clang-tidy. NFC
The patch is generated using this command:

tools/clang/tools/extra/clang-tidy/tool/run-clang-tidy.py -fix \
  -checks=-*,llvm-namespace-comment -header-filter='llvm/.*|clang/.*' \
  llvm/lib/


Thanks to Eugene Kosov for the original patch!

llvm-svn: 240137
2015-06-19 15:57:42 +00:00
Simon Atanasyan fee03b1be8 [MIPS] Move MIPS ABI flags structure constants to the separate header
http://reviews.llvm.org/D9517

The separate header file allows to reuse the MIPS ABI flags structure
constants in other LLVM tools like the llvm-readobj.

No functional changes.

llvm-svn: 236732
2015-05-07 14:57:04 +00:00
Toma Tabacu 506cfd0b2b [mips] Add the SoftFloat MipsSubtarget feature.
Summary: This will enable the IAS to reject floating point instructions if soft-float is enabled.

Reviewers: dsanders, echristo

Reviewed By: dsanders

Subscribers: jfb, llvm-commits, mpf

Differential Revision: http://reviews.llvm.org/D9053

llvm-svn: 236713
2015-05-07 10:29:52 +00:00
Daniel Sanders 185f23adbc [mips] Correct .MIPS.abiflags for -mfpxx on MIPS32r6
Summary:
The cpr1_size field describes the minimum register width to run the program
rather than the size of the registers on the target. MIPS32r6 was acting
as if -mfp64 has been given because it starts off with 64-bit FPU registers.

Differential Revision: http://reviews.llvm.org/D4538

llvm-svn: 213243
2014-07-17 09:57:23 +00:00
David Majnemer 99ef236542 Mips: Silence a -Wcovered-switch-default
Remove a default label which covered no enumerators, replace it with a
llvm_unreachable.

No functionality changed.

llvm-svn: 212729
2014-07-10 16:04:04 +00:00
Daniel Sanders 7e527423f5 [mips] Add support for -modd-spreg/-mno-odd-spreg
Summary:
When -mno-odd-spreg is in effect, 32-bit floating point values are not
permitted in odd FPU registers. The option also prohibits 32-bit and 64-bit
floating point comparison results from being written to odd registers.

This option has three purposes:
* It allows support for certain MIPS implementations such as loongson-3a that
  do not allow the use of odd registers for single precision arithmetic.
* When using -mfpxx, -mno-odd-spreg is the default and this allows us to
  statically check that code is compliant with the O32 FPXX ABI since mtc1/mfc1
  instructions to/from odd registers are guaranteed not to appear for any
  reason. Once this has been established, the user can then re-enable
  -modd-spreg to regain the use of all 32 single-precision registers.
* When using -mfp64 and -mno-odd-spreg together, an O32 extension named
  O32 FP64A is used as the ABI. This is intended to provide almost all
  functionality of an FR=1 processor but can also be executed on a FR=0 core
  with the assistance of a hardware compatibility mode which emulates FR=0
  behaviour on an FR=1 processor.

* Added '.module oddspreg' and '.module nooddspreg' each of which update
  the .MIPS.abiflags section appropriately
* Moved setFpABI() call inside emitDirectiveModuleFP() so that the caller
  doesn't have to remember to do it.
* MipsABIFlags now calculates the flags1 and flags2 member on demand rather
  than trying to maintain them in the same format they will be emitted in.

There is one portion of the -mfp64 and -mno-odd-spreg combination that is not
implemented yet. Moves to/from odd-numbered double-precision registers must not
use mtc1. I will fix this in a follow-up.

Differential Revision: http://reviews.llvm.org/D4383

llvm-svn: 212717
2014-07-10 13:38:23 +00:00
Daniel Sanders c7dbc630e5 [mips] Improve encapsulation of the .MIPS.abiflags implementation and limit scope of related enums
Summary:
Follow on to r212519 to improve the encapsulation and limit the scope of the enums.

Also merged two very similar parser functions, fixed a bug where ASE's
were not being reported, and marked CPR1's as being 128-bit when MSA is
enabled.

Differential Revision: http://reviews.llvm.org/D4384

llvm-svn: 212522
2014-07-08 10:11:38 +00:00