[PATCH 0/6] rs6000: Test all rs6000 floating point conversions

[Segher Boessenkool]

This series adds new codegen tests for converting any of our seven
floating point modes to any of those seven.  It also fixes a bunch of
bugs so that these testcases pass.

Tested on powerpc64-linux {-m32,-m64} (a power7); on powerpc64le-linux,
both on power8 and on power9; and on AIX.

Also tested the new testcases with options
        {-mlong-double-64,-mlong-double-128}
        {-mabi=ibmlongdouble,-mabi=ieeelongdouble}
        {-mcpu=power4,-mcpu=970,-mcpu=power6,-mcpu=power7,-mcpu=power9}
        {-mabi=elfv1/-mbig,-mabi=elfv2/-mlittle}
        {-m32,-m64}
(but not -mabi=ieeelongdouble before power7 because that is not
supported).

Committing to trunk.


Segher


Segher Boessenkool (6):
  rs6000: Use more correct names for some trunc/extend libcalls
  rs6000: Use correct names for some trunc/extend libcalls
  rs6000: Improve truncifsf2
  rs6000: Fix testsuite bug in check_ppc_float128_hw_available
  rs6000: New testsuite selectors
  rs6000: New testcase fp-convert.c

 gcc/config/rs6000/rs6000.c                        | 24 +++---
 gcc/config/rs6000/rs6000.md                       | 23 ++----
 gcc/testsuite/gcc.target/powerpc/convert-fp-128.c | 99 +++++++++++++++++++++++
 gcc/testsuite/gcc.target/powerpc/convert-fp-64.c  | 61 ++++++++++++++
 gcc/testsuite/lib/target-supports.exp             | 41 +++++++++-
 5 files changed, 217 insertions(+), 31 deletions(-)
 create mode 100644 gcc/testsuite/gcc.target/powerpc/convert-fp-128.c
 create mode 100644 gcc/testsuite/gcc.target/powerpc/convert-fp-64.c

-- 
1.8.3.1