Commit Graph

4 Commits

Author SHA1 Message Date
Daniel Sanders 81eb66c992 [mips] Move ABI-dependent register selections to MipsABIInfo. NFC.
Summary:
For example, a common idiom was 'isN64 ? Mips::SP_64 : Mips::SP'. This has
been moved to MipsABIInfo and replaced with 'ABI.GetStackPtr()'.

There are others that should also be moved. This patch sticks to the ones that
are obviously non-functional. The others have minor mistakes that need fixing
at the same time, mostly involving checks for 64-bit GPR's instead of checks
for 64-bit pointers.

Reviewers: tomatabacu

Reviewed By: tomatabacu

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D8972

llvm-svn: 235173
2015-04-17 09:50:21 +00:00
Daniel Sanders 1779314e3c [mips] Add backend support for Mips32r[35] and Mips64r[35].
Summary:
These ISA's didn't add any instructions so they are almost identical to
Mips32r2 and Mips64r2. Even the ELF e_flags are the same, However the ISA
revision in .MIPS.abiflags is 3 or 5 respectively instead of 2.

Reviewers: vmedic

Reviewed By: vmedic

Subscribers: tomatabacu, llvm-commits, atanasyan

Differential Revision: http://reviews.llvm.org/D7381

llvm-svn: 229695
2015-02-18 16:24:50 +00:00
Eric Christopher a576281694 Move the Mips target to storing the ABI in the TargetMachine rather
than on MipsSubtargetInfo.

This required a bit of massaging in the MC level to handle this since
MC is a) largely a collection of disparate classes with no hierarchy,
and b) there's no overarching equivalent to the TargetMachine, instead
only the subtarget via MCSubtargetInfo (which is the base class of
TargetSubtargetInfo).

We're now storing the ABI in both the TargetMachine level and in the
MC level because the AsmParser and the TargetStreamer both need to
know what ABI we have to parse assembly and emit objects. The target
streamer has a pointer to the one in the asm parser and is updated
when the asm parser is created. This is fragile as the FIXME comment
notes, but shouldn't be a problem in practice since we always
create an asm parser before attempting to emit object code via the
assembler. The TargetMachine now contains the ABI so that the DataLayout
can be constructed dependent upon ABI.

All testcases have been updated to use the -target-abi command line
flag so that we can set the ABI without using a subtarget feature.

Should be no change visible externally here.

llvm-svn: 227102
2015-01-26 17:33:46 +00:00
Vladimir Medic 636fefe252 MipsABIInfo class is used in different libraries. Moving the files to MCTargetDesc folder(LLVMMipsDesc library) prevents linkage errors. There are no functional changes.
llvm-svn: 224427
2014-12-17 11:49:56 +00:00