diff options
| author | kazu <kazu@138bc75d-0d04-0410-961f-82ee72b054a4> | 2003-02-28 00:30:50 +0000 |
|---|---|---|
| committer | kazu <kazu@138bc75d-0d04-0410-961f-82ee72b054a4> | 2003-02-28 00:30:50 +0000 |
| commit | 325ead1d1344c2a4f110e16eefbda04fcb36764d (patch) | |
| tree | f573a168a5ffcef1116b0a72802ec931307b32bf /gcc/reload1.c | |
| parent | d0ec9c492e4618efcc2c36e40c766ee220df8d95 (diff) | |
| download | gcc-325ead1d1344c2a4f110e16eefbda04fcb36764d.tar.gz | |
* reload1.c (sext_for_mode): Remove.
(reload_cse_move2add): Use trunc_int_for_mode instead of
sext_for_mode.
(move2add_note_store): Likewise.
Reset register information if we see a set in non-integer
mode.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@63540 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/reload1.c')
| -rw-r--r-- | gcc/reload1.c | 52 |
1 files changed, 17 insertions, 35 deletions
diff --git a/gcc/reload1.c b/gcc/reload1.c index 31ede252cfe..06b53f73597 100644 --- a/gcc/reload1.c +++ b/gcc/reload1.c @@ -455,8 +455,6 @@ static void move2add_note_store PARAMS ((rtx, rtx, void *)); static void add_auto_inc_notes PARAMS ((rtx, rtx)); #endif static void copy_eh_notes PARAMS ((rtx, rtx)); -static HOST_WIDE_INT sext_for_mode PARAMS ((enum machine_mode, - HOST_WIDE_INT)); static void failed_reload PARAMS ((rtx, int)); static int set_reload_reg PARAMS ((int, int)); static void reload_cse_simplify PARAMS ((rtx, rtx)); @@ -9084,25 +9082,6 @@ static int move2add_luid; invalidate all previously collected reg_offset data. */ static int move2add_last_label_luid; -/* Generate a CONST_INT and force it in the range of MODE. */ - -static HOST_WIDE_INT -sext_for_mode (mode, value) - enum machine_mode mode; - HOST_WIDE_INT value; -{ - HOST_WIDE_INT cval = value & GET_MODE_MASK (mode); - int width = GET_MODE_BITSIZE (mode); - - /* If MODE is narrower than HOST_WIDE_INT and CVAL is a negative number, - sign extend it. */ - if (width > 0 && width < HOST_BITS_PER_WIDE_INT - && (cval & ((HOST_WIDE_INT) 1 << (width - 1))) != 0) - cval |= (HOST_WIDE_INT) -1 << width; - - return cval; -} - /* ??? We don't know how zero / sign extension is handled, hence we can't go from a narrower to a wider mode. */ #define MODES_OK_FOR_MOVE2ADD(OUTMODE, INMODE) \ @@ -9169,9 +9148,10 @@ reload_cse_move2add (first) if (GET_CODE (src) == CONST_INT && reg_base_reg[regno] < 0) { int success = 0; - rtx new_src = GEN_INT (sext_for_mode (GET_MODE (reg), - INTVAL (src) - - reg_offset[regno])); + rtx new_src = + GEN_INT (trunc_int_for_mode (INTVAL (src) + - reg_offset[regno], + GET_MODE (reg))); /* (set (reg) (plus (reg) (const_int 0))) is not canonical; use (set (reg) (reg)) instead. We don't delete this insn, nor do we convert it into a @@ -9250,10 +9230,11 @@ reload_cse_move2add (first) HOST_WIDE_INT added_offset = INTVAL (src3); HOST_WIDE_INT base_offset = reg_offset[REGNO (src)]; HOST_WIDE_INT regno_offset = reg_offset[regno]; - rtx new_src = GEN_INT (sext_for_mode (GET_MODE (reg), - added_offset - + base_offset - - regno_offset)); + rtx new_src = + GEN_INT (trunc_int_for_mode (added_offset + + base_offset + - regno_offset, + GET_MODE (reg))); int success = 0; if (new_src == const0_rtx) @@ -9270,9 +9251,9 @@ reload_cse_move2add (first) delete_insn (insn); insn = next; reg_mode[regno] = GET_MODE (reg); - reg_offset[regno] = sext_for_mode (GET_MODE (reg), - added_offset - + base_offset); + reg_offset[regno] = + trunc_int_for_mode (added_offset + base_offset, + GET_MODE (reg)); continue; } } @@ -9342,7 +9323,8 @@ move2add_note_store (dst, set, data) regno += REGNO (dst); - if (HARD_REGNO_NREGS (regno, mode) == 1 && GET_CODE (set) == SET + if (SCALAR_INT_MODE_P (mode) + && HARD_REGNO_NREGS (regno, mode) == 1 && GET_CODE (set) == SET && GET_CODE (SET_DEST (set)) != ZERO_EXTRACT && GET_CODE (SET_DEST (set)) != SIGN_EXTRACT && GET_CODE (SET_DEST (set)) != STRICT_LOW_PART) @@ -9437,9 +9419,9 @@ move2add_note_store (dst, set, data) reg_base_reg[regno] = reg_base_reg[base_regno]; /* Compute the sum of the offsets or constants. */ - reg_offset[regno] = sext_for_mode (dst_mode, - offset - + reg_offset[base_regno]); + reg_offset[regno] = trunc_int_for_mode (offset + + reg_offset[base_regno], + dst_mode); } else { |