[Bug target/67929] [4.9/5/6 Regression][arm] Wrong code for FP mult-by-power-of-2 + int conversion

[ktkachov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67929

--- Comment #3 from ktkachov at gcc dot gnu.org ---
Author: ktkachov
Date: Tue Oct 27 12:23:51 2015
New Revision: 229436

URL: https://gcc.gnu.org/viewcvs?rev=229436&root=gcc&view=rev
Log:
[ARM] PR target/67929 Tighten vfp3_const_double_for_bits checks

        PR target/67929
        * config/arm/arm.c (vfp3_const_double_for_bits): Rewrite.
        * config/arm/constraints.md (Dp): Update callsite.
        * config/arm/predicates.md (const_double_vcvt_power_of_two): Likewise.

        * gcc.target/arm/pr67929_1.c: New test.


Added:
    trunk/gcc/testsuite/gcc.target/arm/pr67929_1.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/arm/arm.c
    trunk/gcc/config/arm/constraints.md
    trunk/gcc/config/arm/predicates.md
    trunk/gcc/testsuite/ChangeLog