[Bug rtl-optimization/61605] Potential optimization: Keep unclobbered argument registers live across function calls

[andi-gcc at firstfloor dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61605

--- Comment #3 from Andi Kleen <andi-gcc at firstfloor dot org> ---
It was supposed to be enabled with 

Date:   Fri May 30 11:39:49 2014 +0000

    -fuse-caller-save - Enable for i386

    2014-05-30  Tom de Vries  <t...@codesourcery.com>

        * config/i386/i386.c (TARGET_CALL_FUSAGE_CONTAINS_NON_CALLEE_CLOBBERS):
        Redefine as true.

        * gcc.target/i386/fuse-caller-save.c: New test.
        * gcc.dg/ira-shrinkwrap-prep-1.c: Run with -fno-use-caller-save.
        * gcc.dg/ira-shrinkwrap-prep-2.c: Same.

    git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@211078
138bc75d-0d04-0410-961f-82ee72b054a4