diff options
Diffstat (limited to 'gcc/rtl.h')
| -rw-r--r-- | gcc/rtl.h | 13 |
1 files changed, 12 insertions, 1 deletions
@@ -1055,6 +1055,7 @@ extern struct _global_rtl struct rtx_def virtual_stack_vars_val; struct rtx_def virtual_stack_dynamic_val; struct rtx_def virtual_outgoing_args_val; + struct rtx_def virtual_cfa_val; } global_rtl; /* All references to certain hard regs, except those created @@ -1159,7 +1160,17 @@ extern rtx gen_rtx_MEM PROTO((enum machine_mode, rtx)); #define VIRTUAL_OUTGOING_ARGS_REGNUM ((FIRST_VIRTUAL_REGISTER) + 3) -#define LAST_VIRTUAL_REGISTER ((FIRST_VIRTUAL_REGISTER) + 3) +/* This points to the Canonical Frame Address of the function. This + should corrospond to the CFA produced by INCOMING_FRAME_SP_OFFSET, + but is calculated relative to the arg pointer for simplicity; the + frame pointer nor stack pointer are necessarily fixed relative to + the CFA until after reload. */ + +#define virtual_cfa_rtx (&global_rtl.virtual_cfa_val) + +#define VIRTUAL_CFA_REGNUM ((FIRST_VIRTUAL_REGISTER) + 4) + +#define LAST_VIRTUAL_REGISTER ((FIRST_VIRTUAL_REGISTER) + 4) extern rtx find_next_ref PROTO((rtx, rtx)); extern rtx *find_single_use PROTO((rtx, rtx, rtx *)); |