[Bug target/66806] internal compiler error: in emit_move_insn, at expr.c:3551

[hjl at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66806

--- Comment #3 from hjl at gcc dot gnu.org <hjl at gcc dot gnu.org> ---
Author: hjl
Date: Wed Jul  8 16:19:06 2015
New Revision: 225564

URL: https://gcc.gnu.org/viewcvs?rev=225564&root=gcc&view=rev
Log:
Don't pass/return vectors in registers for IAMCU

Vectors should be passed in memory for IAMCU.  No warning for vector ABI
change for IAMCU since IAMCU ABI won't change.

gcc/

        PR target/66806
        * config/i386/i386.c (type_natural_mode): Don't warn vector ABI
        change for IAMCU.
        (function_arg_advance_32): Don't pass vectors in registers for
        IAMCU.
        (function_arg_32): Likewise.
        (ix86_return_in_memory): Don't return vectors in registers for
        IAMCU.

gcc/testsuite/

        PR target/66806
        * gcc.target/i386/pr66806.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/i386/pr66806.c
Modified:
    trunk/gcc/config/i386/i386.c