diff options
Diffstat (limited to 'gcc/config/sh/sh.h')
| -rw-r--r-- | gcc/config/sh/sh.h | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/gcc/config/sh/sh.h b/gcc/config/sh/sh.h index 8b4f6c0..f870ba6 100644 --- a/gcc/config/sh/sh.h +++ b/gcc/config/sh/sh.h @@ -98,8 +98,15 @@ do { \ ? "__LITTLE_ENDIAN__" : "__BIG_ENDIAN__"); \ } while (0) -/* We can not debug without a frame pointer. */ -/* #define CAN_DEBUG_WITHOUT_FP */ +#define CAN_DEBUG_WITHOUT_FP + +/* Value should be nonzero if functions must have frame pointers. + Zero means the frame pointer need not be set up (and parms may be accessed + via the stack pointer) in functions that seem suitable. */ + +#ifndef SUBTARGET_FRAME_POINTER_REQUIRED +#define SUBTARGET_FRAME_POINTER_REQUIRED 0 +#endif #define CONDITIONAL_REGISTER_USAGE do \ { \ @@ -2633,11 +2640,9 @@ extern int current_function_interrupt; #define SIDI_OFF (TARGET_LITTLE_ENDIAN ? 0 : 4) -/* ??? Define ACCUMULATE_OUTGOING_ARGS? This is more efficient than pushing - and popping arguments. However, we do have push/pop instructions, and - rather limited offsets (4 bits) in load/store instructions, so it isn't - clear if this would give better code. If implemented, should check for - compatibility problems. */ +/* Better to allocate once the maximum space for outgoing args in the + prologue rather than duplicate around each call. */ +#define ACCUMULATE_OUTGOING_ARGS TARGET_ACCUMULATE_OUTGOING_ARGS #define SH_DYNAMIC_SHIFT_COST \ (TARGET_HARD_SH4 ? 1 : TARGET_SH3 ? (TARGET_SMALLCODE ? 1 : 2) : 20) |