[Bug target/70052] [5/6 Regression] ICE compiling _Decimal128 test case

[amodra at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70052

--- Comment #8 from Alan Modra <amodra at gcc dot gnu.org> ---
Author: amodra
Date: Wed Mar 30 00:36:36 2016
New Revision: 234543

URL: https://gcc.gnu.org/viewcvs?rev=234543&root=gcc&view=rev
Log:
[RS6000] PR70052, ICE compiling _Decimal128 test case

gcc/
        PR target/70052
        * config/rs6000/constraints.md (j): Simplify.
        * config/rs6000/predicates.md (easy_fp_constant): Exclude
        decimal float 0.D.
        * config/rs6000/rs6000.md (zero_fp): New mode_attr.
        (mov<mode>_hardfloat, mov<mode>_hardfloat32, mov<mode>_hardfloat64,
         mov<mode>_64bit_dm, mov<mode>_32bit): Use zero_fp in place of j
        in all constraint alternatives.
        (movtd_64bit_nodm): Delete "j" constraint alternative.
gcc/testsuite/
        * gcc.dg/dfp/pr70052.c: New test.

Added:
    branches/gcc-5-branch/gcc/testsuite/gcc.dg/dfp/pr70052.c
Modified:
    branches/gcc-5-branch/gcc/ChangeLog
    branches/gcc-5-branch/gcc/config/rs6000/constraints.md
    branches/gcc-5-branch/gcc/config/rs6000/predicates.md
    branches/gcc-5-branch/gcc/config/rs6000/rs6000.md
    branches/gcc-5-branch/gcc/testsuite/ChangeLog