[Bug target/71278] Inline nearbyint for SSE4.1

[ubizjak at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71278

--- Comment #1 from Uroš Bizjak <ubizjak at gmail dot com> ---
Author: uros
Date: Tue Sep 25 14:26:11 2018
New Revision: 264571

URL: https://gcc.gnu.org/viewcvs?rev=264571&root=gcc&view=rev
Log:
        PR target/71278
        * config/i386/i386.md (frndintxf2_mask_pm): Remove.
        (frndintxf2_mask_pm_i387): Ditto.
        (nearbyintxf2): Rewrite expander pattern to match rintxf2.
        Enable for !flag_trapping_math.
        (nearbyint<mode>2): Enable x87 modes for !flag_trapping_math.
        Enable SSE modes for TARGET_SSE4_1 and expand them with round insn.
        Change operand 1 predicate to nonimmediate_operand.
        (attr "i387_cw"): Remove mask_pm.
        * config/i386/i386.h (enum ix86_stack_slot): Remove SLOT_CW_MASK_PM.
        (enum ix86_entity): Remove I387_MASK_PM.
        * config/i386/i386.c (ix86_i387_mode_needed): Do not
        handle I387_MASK_PM.
        (ix86_mode_needed): Ditto.
        (ix86_mode_after): Ditto.
        (ix86_mode_entry): Ditto.
        (ix86_mode_exit): Ditto.
        (emit_i387_cw_initialization): Do not handle I387_CW_MASK_PM.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.c
    trunk/gcc/config/i386/i386.h
    trunk/gcc/config/i386/i386.md
    trunk/gcc/reg-stack.c