[Bug target/38900] ICE: unable to find a register to spill

[rth at gcc dot gnu dot org]

------- Comment #16 from rth at gcc dot gnu dot org  2009-07-08 16:41 -------
Subject: Bug 38900

Author: rth
Date: Wed Jul  8 16:41:23 2009
New Revision: 149373

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=149373
Log:
        PR target/38900
        * config/i386/i386.h (CONDITIONAL_REGISTER_USAGE): Move to i386.c.
        (enum reg_class): Add CLOBBERED_REGS.
        (REG_CLASS_NAMES, REG_CLASS_CONTENTS): Likewise.
        * config/i386/i386.c (ix86_conditional_register_usage): Moved
        from CONDITIONAL_REGISTER_USAGE; build CLOBBERED_REGS for 64-bit.
        (ix86_function_ok_for_sibcall): Tidy.  Disallow MS->SYSV sibcalls.
        (ix86_expand_call): Use sibcall_insn_operand when needed.  Don't
        force 64-bit sibcalls into R11.
        * config/i386/constraints.md (U): New constraint.
        * config/i386/i386.md (sibcall_1, sibcall_value_1): Use it.
        (sibcall_1_rex64, sibcall_value_1_rex64): Likewise.
        (sibcall_1_rex64_v, sibcall_value_1_rex64_v): Remove.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/constraints.md
    trunk/gcc/config/i386/i386-protos.h
    trunk/gcc/config/i386/i386.c
    trunk/gcc/config/i386/i386.h
    trunk/gcc/config/i386/i386.md


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38900