[Bug target/85667] (x86_64) ms_abi rules aren't followed when returning short structs with float values

[uros at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85667

--- Comment #2 from uros at gcc dot gnu.org ---
Author: uros
Date: Wed Nov 21 20:09:56 2018
New Revision: 266355

URL: https://gcc.gnu.org/viewcvs?rev=266355&root=gcc&view=rev
Log:
        PR target/85667
        * config/i386/i386.c (function_value_ms_64): Return AX_REG instead
        of FIRST_SSE_REG for 4 or 8 byte modes.

testsuite/ChangeLog:

        PR target/85667
        * gcc.target/pr85667-1.c: New testcase.
        * gcc.target/pr85667-2.c: New testcase.
        * gcc.target/pr85667-3.c: New testcase.
        * gcc.target/pr85667-4.c: New testcase.


Added:
    trunk/gcc/testsuite/gcc.target/i386/pr85667-1.c
    trunk/gcc/testsuite/gcc.target/i386/pr85667-2.c
    trunk/gcc/testsuite/gcc.target/i386/pr85667-3.c
    trunk/gcc/testsuite/gcc.target/i386/pr85667-4.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.c
    trunk/gcc/testsuite/ChangeLog