[Bug target/63408] [4.9/5/6 regression] GCC emits incorrect fixed->fp conversion instruction on Cortex-M4 target

[ramana at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63408

--- Comment #16 from Ramana Radhakrishnan <ramana at gcc dot gnu.org> ---
Author: ramana
Date: Wed Jul  1 08:01:57 2015
New Revision: 225226

URL: https://gcc.gnu.org/viewcvs?rev=225226&root=gcc&view=rev
Log:
Fix PR target/63408 on the 4.9 branch.

2015-07-01  Ramana Radhakrishnan  <ramana.radhakrish...@arm.com>

        Backport from mainline
        2015-06-24  Ramana Radhakrishnan  <ramana.radhakrish...@arm.com>

        PR target/63408
        * config/arm/arm.c (vfp3_const_double_for_fract_bits): Disable
        for negative numbers.

2015-07-01  Ramana Radhakrishnan  <ramana.radhakrish...@arm.com>

        Backport from mainline
        2015-06-24  Ramana Radhakrishnan  <ramana.radhakrish...@arm.com>

        PR target/63408
        * gcc.target/arm/pr63408.c: New test.



Added:
    branches/gcc-4_9-branch/gcc/testsuite/gcc.target/arm/pr63408.c
      - copied unchanged from r224879,
trunk/gcc/testsuite/gcc.target/arm/pr63408.c
Modified:
    branches/gcc-4_9-branch/gcc/ChangeLog
    branches/gcc-4_9-branch/gcc/config/arm/arm.c
    branches/gcc-4_9-branch/gcc/testsuite/ChangeLog