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| author | J"orn Rennecke <amylaar@cygnus.co.uk> | 1998-05-21 22:34:06 +0000 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 1998-05-21 16:34:06 -0600 |
| commit | 1a29f703bf52e140ee76cb550951557c0777cbfd (patch) | |
| tree | 6da8e87404024d9ecb238bedd191d7d916d1bce7 /gcc | |
| parent | 05930232f1ccf2ea94e57b600eddb7ca81d92063 (diff) | |
| download | gcc-1a29f703bf52e140ee76cb550951557c0777cbfd.zip gcc-1a29f703bf52e140ee76cb550951557c0777cbfd.tar.gz gcc-1a29f703bf52e140ee76cb550951557c0777cbfd.tar.bz2 | |
regmove.c (gen_add3_insn): New function.
* regmove.c (gen_add3_insn): New function.
(fixup_match_2): Use it instead of calling gen_addsi3.
From-SVN: r19938
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/regmove.c | 23 |
2 files changed, 26 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 75ae748..192fa09 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +Thu May 21 19:50:13 1998 J"orn Rennecke <amylaar@cygnus.co.uk> + + * regmove.c (gen_add3_insn): New function. + (fixup_match_2): Use it instead of calling gen_addsi3. + Thu May 21 23:09:50 1998 Jeffrey A Law (law@cygnus.com) * alias.c (rtx_equal_for_memref_p): Handle SCRATCH as a memory diff --git a/gcc/regmove.c b/gcc/regmove.c index 75798b0..ee56db5 100644 --- a/gcc/regmove.c +++ b/gcc/regmove.c @@ -47,6 +47,7 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ static int optimize_reg_copy_1 PROTO((rtx, rtx, rtx)); static void optimize_reg_copy_2 PROTO((rtx, rtx, rtx)); static void optimize_reg_copy_3 PROTO((rtx, rtx, rtx)); +static rtx gen_add3_insn PROTO((rtx, rtx, rtx)); struct match { int with[MAX_RECOG_OPERANDS]; @@ -65,6 +66,23 @@ static int reg_is_remote_constant_p PROTO((rtx, rtx, rtx)); static int stable_but_for_p PROTO((rtx, rtx, rtx)); static int loop_depth; +/* Generate and return an insn body to add r1 and c, + storing the result in r0. */ +static rtx +gen_add3_insn (r0, r1, c) + rtx r0, r1, c; +{ + int icode = (int) add_optab->handlers[(int) GET_MODE (r0)].insn_code; + + if (icode == CODE_FOR_nothing + || ! (*insn_operand_predicate[icode][0]) (r0, insn_operand_mode[icode][0]) + || ! (*insn_operand_predicate[icode][1]) (r1, insn_operand_mode[icode][1]) + || ! (*insn_operand_predicate[icode][2]) (c, insn_operand_mode[icode][2])) + return NULL_RTX; + + return (GEN_FCN (icode) (r0, r1, c)); +} + #ifdef AUTO_INC_DEC /* INC_INSN is an instruction that adds INCREMENT to REG. @@ -639,8 +657,9 @@ fixup_match_2 (insn, dst, src, offset, regmove_dump_file) { HOST_WIDE_INT newconst = INTVAL (offset) - INTVAL (XEXP (SET_SRC (pset), 1)); - if (validate_change (insn, &PATTERN (insn), - gen_addsi3 (dst, dst, GEN_INT (newconst)), 0)) + rtx add = gen_add3_insn (dst, dst, GEN_INT (newconst)); + + if (add && validate_change (insn, &PATTERN (insn), add, 0)) { /* Remove the death note for DST from DST_DEATH. */ if (dst_death) |