diff options
Diffstat (limited to 'gcc/simplify-rtx.c')
| -rw-r--r-- | gcc/simplify-rtx.c | 20 |
1 files changed, 3 insertions, 17 deletions
diff --git a/gcc/simplify-rtx.c b/gcc/simplify-rtx.c index b98c47581f1..c69084f7027 100644 --- a/gcc/simplify-rtx.c +++ b/gcc/simplify-rtx.c @@ -43,26 +43,12 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA virtual regs here because the simplify_*_operation routines are called by integrate.c, which is called before virtual register instantiation. - ?!? FIXED_BASE_PLUS_P and NONZERO_BASE_PLUS_P need to move into + ?!? NONZERO_BASE_PLUS_P needs to move into a header file so that their definitions can be shared with the simplification routines in simplify-rtx.c. Until then, do not - change these macros without also changing the copy in simplify-rtx.c. */ + change this macro without also changing the copy in simplify-rtx.c. */ -#define FIXED_BASE_PLUS_P(X) \ - ((X) == frame_pointer_rtx || (X) == hard_frame_pointer_rtx \ - || ((X) == arg_pointer_rtx && fixed_regs[ARG_POINTER_REGNUM])\ - || (X) == virtual_stack_vars_rtx \ - || (X) == virtual_incoming_args_rtx \ - || (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 1)) == CONST_INT \ - && (XEXP (X, 0) == frame_pointer_rtx \ - || XEXP (X, 0) == hard_frame_pointer_rtx \ - || ((X) == arg_pointer_rtx \ - && fixed_regs[ARG_POINTER_REGNUM]) \ - || XEXP (X, 0) == virtual_stack_vars_rtx \ - || XEXP (X, 0) == virtual_incoming_args_rtx)) \ - || GET_CODE (X) == ADDRESSOF) - -/* Similar, but also allows reference to the stack pointer. +/* Allows reference to the stack pointer. This used to include FIXED_BASE_PLUS_P, however, we can't assume that arg_pointer_rtx by itself is nonzero, because on at least one machine, |