[Bug target/30120] [4.3 Regression] silent miscompilation of argument passing

[uros at gcc dot gnu dot org]

------- Comment #3 from uros at gcc dot gnu dot org  2006-12-08 18:20 -------
Subject: Bug 30120

Author: uros
Date: Fri Dec  8 18:20:25 2006
New Revision: 119663

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=119663
Log:
        PR target/30120
        * reg-stack.c (convert_regs_entry): Mark current argument passing
        registers as live.

        * config/i386/i386.h (X87_REGPARM_MAX): Set to 0 to disable passing
        of float arguments in x87 registers.

testsuite/ChangeLog:

        * gcc.target/i386/x87regparm-1.c: XFAIL.
        * gcc.target/i386/x87regparm-2.c: XFAIL.
        * gcc.target/i386/x87regparm-3.c: XFAIL.
        * gcc.target/i386/x87regparm-4.c: XFAIL.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.h
    trunk/gcc/reg-stack.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.target/i386/x87regparm-1.c
    trunk/gcc/testsuite/gcc.target/i386/x87regparm-2.c
    trunk/gcc/testsuite/gcc.target/i386/x87regparm-3.c
    trunk/gcc/testsuite/gcc.target/i386/x87regparm-4.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30120