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Diffstat (limited to 'gcc/config/vax/vax.h')
| -rw-r--r-- | gcc/config/vax/vax.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/config/vax/vax.h b/gcc/config/vax/vax.h index 77d9e7f..427c352 100644 --- a/gcc/config/vax/vax.h +++ b/gcc/config/vax/vax.h @@ -333,6 +333,16 @@ enum reg_class { NO_REGS, ALL_REGS, LIM_REG_CLASSES }; } \ while (0) +/* This macro specifies a table of register pairs used to eliminate + unneeded registers that point into the stack frame. */ +#define ELIMINABLE_REGS {{FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}} + +/* On the VAX, FRAME_POINTER_REQUIRED is always 1, so the definition of this + macro doesn't matter for register eliminations, but it should still + give realistic data for rtx_addr_can_trap_p. */ +#define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \ + ((OFFSET) = get_frame_size ()) + /* EXIT_IGNORE_STACK should be nonzero if, when returning from a function, the stack pointer does not matter. The value is tested only in functions that have frame pointers. |