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Commit Graph

4 Commits

Author SHA1 Message Date
Daniel Sanders
aed2e151eb [llvm-objdump] Support detection of feature bits from the object and implement this for Mips.
Summary:
The Mips implementation only covers the feature bits described by the ELF
e_flags so far. Mips stores additional feature bits such as MSA in the
.MIPS.abiflags section.

Also fixed a small bug this revealed where microMIPS wouldn't add the
EF_MIPS_MICROMIPS flag when using -filetype=obj.

Reviewers: echristo, rafael

Subscribers: rafael, mehdi_amini, dsanders, sdardis, llvm-commits

Differential Revision: http://reviews.llvm.org/D21125

llvm-svn: 272880
2016-06-16 09:17:03 +00:00
Rafael Espindola
6da3617e7f Don't pass a Reloc::Model to MC.
MC only needs to know if the output is PIC or not. It never has to
decide about creating GOTs and PLTs for example. The only thing that
MC itself uses this information for is expanding "macros" in sparc and
mips. The rest I am pretty sure could be moved to CodeGen.

This is a cleanup and isolates the code from future changes to
Reloc::Model.

llvm-svn: 269909
2016-05-18 11:58:50 +00:00
Daniel Sanders
723ca9cb5e [mips][ias] Fix O32 .cprestore directive when inside .set noat region and offset is in range.
Summary:
This expands on r269179 to fix an additional case that was not covered by our
tests. The assembler temporary is not needed when the .cprestore offset fits
inside a simm16 and it is not an error to use it inside a '.set noat' in this
case.

Reviewers: emaste, seanbruno, sdardis

Subscribers: dsanders, sdardis, llvm-commits

Differential Revision: http://reviews.llvm.org/D20199

llvm-svn: 269295
2016-05-12 14:01:50 +00:00
Daniel Sanders
3b97b8630a [mips][ias] Fix N32 and N64 .cprestore directive when inside .set noat region.
Summary:
r268058 unintentionally made the retrieval of the current assembler temporary
unconditional. This was fine for the existing tests but it broke the cases
where the assembler temporary is not needed (N32/N64 or not PIC) and is
unavailable due to a '.set noat' directive.

This fixes FreeBSD's libc.

Reviewers: emaste, sdardis, seanbruno

Subscribers: dsanders, emaste, sdardis, llvm-commits

Differential Revision: http://reviews.llvm.org/D20093

llvm-svn: 269179
2016-05-11 12:48:19 +00:00