Zero means the frame pointer need not be set up (and parms
may be accessed via the stack pointer) in functions that seem suitable.
This is computed in `reload', in reload1.c.
+ Used in flow.c, global.c, and reload1.c.
- Used in flow.c, global.c, and reload1.c. */
-extern int leaf_function;
-
+ Being a non-leaf function does not mean a frame pointer is needed in the
+ flat window model. However, the debugger won't be able to backtrace through
+ us with out it. */
#define FRAME_POINTER_REQUIRED \
- (TARGET_FRW ? (current_function_calls_alloca || current_function_varargs) \
+ (TARGET_FRW ? (current_function_calls_alloca || current_function_varargs \
+ || !leaf_function_p ()) \
: ! (leaf_function_p () && only_leaf_regs_used ()))
/* C statement to store the difference between the frame pointer
to do a "save" insn. The decision about whether or not
to do this is made in regclass.c. */
+extern int leaf_function;
#define FUNCTION_PROLOGUE(FILE, SIZE) \
(TARGET_FRW ? sparc_flat_output_function_prologue (FILE, SIZE) \
: output_function_prologue (FILE, SIZE, leaf_function))