[Bug target/88850] [9 Regression] Hard register coming out of expand causing reload to fail.

[tnfchris at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88850

--- Comment #11 from Tamar Christina <tnfchris at gcc dot gnu.org> ---
Author: tnfchris
Date: Thu Feb 14 17:17:20 2019
New Revision: 268884

URL: https://gcc.gnu.org/viewcvs?rev=268884&root=gcc&view=rev
Log:
Arm: Add HF modes to ANY iterators 

The iterator ANY64 are used in various general split patterns and is supposed
to contain all 64 bit modes.

For some reason the pattern has HI but not HF.  This adds HF so that general
64 bit splits are generated for these modes as well.  These are required
by various split patterns that expect them to be there.

gcc/ChangeLog:

        PR target/88850
        * config/arm/iterators.md (ANY64): Add V4HF.

gcc/testsuite/ChangeLog:

        PR target/88850
        * gcc.target/arm/pr88850-2.c: New test.
        * lib/target-supports.exp
        (check_effective_target_arm_neon_softfp_fp16_ok_nocache,
        check_effective_target_arm_neon_softfp_fp16_ok,
        add_options_for_arm_neon_softfp_fp16): New.


Added:
    trunk/gcc/testsuite/gcc.target/arm/pr88850-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/arm/iterators.md
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/lib/target-supports.exp