[Bug debug/36728] [stack]: gdb doesn't work with stack alignment

[jakub at gcc dot gnu dot org]

------- Comment #13 from jakub at gcc dot gnu dot org  2010-03-10 18:17 -------
Subject: Bug 36728

Author: jakub
Date: Wed Mar 10 18:17:10 2010
New Revision: 157363

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=157363
Log:
        PR debug/43290
        * reg-notes.def (REG_CFA_SET_VDRAP): New note.
        * dwarf2out.c (dwarf2out_frame_debug_expr): Remove rule 20 - setting
        of fde->vdrap_reg.
        (dwarf2out_frame_debug): Handle REG_CFA_SET_VDRAP note.
        (based_loc_descr): Only express drap or vdrap regno based expressions
        using DW_OP_fbreg when not optimizing.
        * config/i386/i386.c (ix86_get_drap_rtx): When not optimizing,
        make the vDRAP = DRAP assignment RTX_FRAME_RELATED_P and add
        REG_CFA_SET_VDRAP note.

        PR debug/36728
        * gcc.dg/guality/pr36728-1.c: New test.
        * gcc.dg/guality/pr36728-2.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/guality/pr36728-1.c
    trunk/gcc/testsuite/gcc.dg/guality/pr36728-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.c
    trunk/gcc/dwarf2out.c
    trunk/gcc/reg-notes.def
    trunk/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36728