[PATCH 0/6] [ARC] Various fixes

[Claudiu Zissulescu <Claudiu.Zissulescu@synopsys.com>]

Hi,

This series of 6 patches are fixing a number of small issues found
during time with our compiler.

Patch 1 fixes the problem of using drsub* instructions when compiling
with double assist instruction support.

Patch 2 fixes big-endian emitted code when using FPX extension
instructions.

Patch 3 passes mfpuda option to the compiler whenever we use double
assist instructions in or compilation.

Patch 4 fixes the floating point optimized equality routine to handle
NaNs emitted by FPX extenssion.

Patch 5 fixes the case when combiner matches a sign-extended 16-bit
number with umulhisi3_imm pattern.

Patch 6 fixes various instruction patterns.

OK to apply?
Claudiu

Claudiu Zissulescu (6):
  [ARC] Don't use drsub* instructions when selecting fpuda.
  [ARC] Fix FPX/FPUDA code gen when compiling for big-endian.
  [ARC] Pass mfpuda to assembler.
  [ARC] Handle FPX NaN within optimized floating point library.
  [ARC] Fix unwanted match for sign extend 16-bit constant.
  [ARC] Various instruction pattern fixes

 gcc/config/arc/arc.c                       |  12 ++-
 gcc/config/arc/arc.h                       |   2 +-
 gcc/config/arc/arc.md                      | 154 ++++++++++++++++-------------
 gcc/config/arc/fpx.md                      |   7 +-
 gcc/testsuite/gcc.target/arc/ieee_eq.c     |  47 +++++++++
 gcc/testsuite/gcc.target/arc/trsub.c       |  10 ++
 gcc/testsuite/gcc.target/arc/umulsihi3_z.c |  23 +++++
 libgcc/config/arc/ieee-754/eqdf2.S         |  13 ++-
 8 files changed, 186 insertions(+), 82 deletions(-)
 create mode 100644 gcc/testsuite/gcc.target/arc/ieee_eq.c
 create mode 100644 gcc/testsuite/gcc.target/arc/trsub.c
 create mode 100644 gcc/testsuite/gcc.target/arc/umulsihi3_z.c

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1.9.1