[Bug target/41246] should "sorry" when regparm=3 and nested functions are encountered

[rth at gcc dot gnu dot org]

------- Comment #20 from rth at gcc dot gnu dot org  2009-09-22 15:17 -------
Subject: Bug 41246

Author: rth
Date: Tue Sep 22 15:16:49 2009
New Revision: 152018

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=152018
Log:
        PR target/41246
        * config/i386/i386.c (ix86_function_regparm): Do not issue an
        error for nested functions with regparm=3.
        (ix86_compute_frame_layout): Adjust frame pointer offset for
        ix86_static_chain_on_stack.
        (ix86_expand_prologue): Handle ix86_static_chain_on_stack.
        (ix86_emit_restore_reg_using_pop): Increment ix86_cfa_state->offset,
        don't reset to UNITS_PER_WORD.
        (ix86_emit_leave): Adjust ix86_cfa_state.
        (ix86_expand_epilogue): Handle ix86_static_chain_on_stack.
        (ix86_static_chain): New.
        (ix86_trampoline_init): Rename from x86_initialize_trampoline;
        make static; update for target hook parameters; use ix86_static_chain.
        (TARGET_STATIC_CHAIN, TARGET_TRAMPOLINE_INIT): New.
        * config/i386/i386.h (STATIC_CHAIN_REGNUM): Remove.
        (INITIALIZE_TRAMPOLINE): Remove.
        (TRAMPOLINE_SIZE): Use 24 for 64-bit.
        (struct machine_function): Use BOOL_BITFIELD; rearrange bitfields
        to the end.  Add static_chain_on_stack.
        (ix86_static_chain_on_stack): New.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.c
    trunk/gcc/config/i386/i386.h


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41246