2 Commits

Author SHA1 Message Date
Daniel Sanders
14e97c4f51 [mips] Use MTHC1 when it is available (MIPS32r2 and later) for both FP32 and FP64
Summary:
To make this work for both AFGR64 and FGR64 register sets, I've had to make the
instruction definition consistent with the white lie (that it reads the lower
32-bits of the register) when they are generated by expandBuildPairF64().

Corrected the definition of hasMips32r2() and hasMips64r2() to include
MIPS32r6 and MIPS64r6.

Depends on D3956

Reviewers: jkolek, zoran.jovanovic, vmedic

Reviewed By: vmedic

Differential Revision: http://reviews.llvm.org/D3957

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210771 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-12 11:55:58 +00:00
Daniel Sanders
23427207ea [mips] Fix 'ran out of registers' in MIPS32 with FP64 when generating code for (ConstantFP 0.0)
Fixed an inappropriate use of BuildPairF64 when compiling for MIPS32 with FP64
which resulted in an impossible constraint on the register allocation. It now
uses BuildPairF64_64.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195007 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-18 13:12:43 +00:00