diff options
Diffstat (limited to 'gnu/egcs/gcc/protector.c')
| -rw-r--r-- | gnu/egcs/gcc/protector.c | 26 |
1 files changed, 11 insertions, 15 deletions
diff --git a/gnu/egcs/gcc/protector.c b/gnu/egcs/gcc/protector.c index 67285f3624f..7e651ac43ae 100644 --- a/gnu/egcs/gcc/protector.c +++ b/gnu/egcs/gcc/protector.c @@ -1647,16 +1647,13 @@ replace_return_reg (first, return_save) rtx first, return_save; { rtx return_reg = DECL_RTL (DECL_RESULT (current_function_decl)); - rtx insn; + rtx insn, prev; /* comfirm that insn patterns are the expected order */ - for (insn = first; insn; insn = NEXT_INSN (insn)) + for (prev = NULL, insn = first; insn; insn = NEXT_INSN (insn)) { if (GET_RTX_CLASS (GET_CODE (insn)) == 'i') { - - rtx prev; - if (PREV_INSN (insn)) prev = PREV_INSN (insn); if (GET_CODE (PATTERN (insn)) == USE && XEXP (PATTERN (insn), 0) == return_reg) @@ -1666,12 +1663,10 @@ replace_return_reg (first, return_save) } /* replace return register */ - for (insn = first; insn; insn = NEXT_INSN (insn)) + for (prev = NULL, insn = first; insn; insn = NEXT_INSN (insn)) { if (GET_RTX_CLASS (GET_CODE (insn)) == 'i') { - rtx prev; - if (PREV_INSN (insn)) prev = PREV_INSN (insn); if (GET_CODE (PATTERN (insn)) == USE && XEXP (PATTERN (insn), 0) == return_reg @@ -2241,7 +2236,7 @@ push_frame_in_operand (insn, orig, push_size, boundary) rtx insn, orig; HOST_WIDE_INT push_size, boundary; { - register rtx x = orig; + register rtx x = orig, prev_insn; register enum rtx_code code; int i, j; HOST_WIDE_INT offset; @@ -2333,6 +2328,7 @@ push_frame_in_operand (insn, orig, push_size, boundary) case PLUS: offset = AUTO_OFFSET(x); + prev_insn = prev_nonnote_insn (insn); /* Handle special case of frame register plus constant. */ if (CONSTANT_P (XEXP (x, 1)) @@ -2387,17 +2383,17 @@ push_frame_in_operand (insn, orig, push_size, boundary) */ else if (XEXP (x, 0) == frame_pointer_rtx && GET_CODE (XEXP (x, 1)) == REG - && PREV_INSN (insn) - && PATTERN (PREV_INSN (insn)) - && SET_DEST (PATTERN (PREV_INSN (insn))) == XEXP (x, 1) - && CONSTANT_P (SET_SRC (PATTERN (PREV_INSN (insn))))) + && prev_insn + && PATTERN (prev_insn) + && SET_DEST (PATTERN (prev_insn)) == XEXP (x, 1) + && CONSTANT_P (SET_SRC (PATTERN (prev_insn)))) { - HOST_WIDE_INT offset = INTVAL (SET_SRC (PATTERN (PREV_INSN (insn)))); + HOST_WIDE_INT offset = INTVAL (SET_SRC (PATTERN (prev_insn))); if (x->used || offset < boundary) return; - SET_SRC (PATTERN (PREV_INSN (insn))) + SET_SRC (PATTERN (prev_insn)) = gen_rtx_CONST_INT (VOIDmode, offset + push_size); x->used = 1; XEXP (x, 1)->used = 1; |