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cse.c (validate_canon_reg, cse_insn): Don't change insns without calling recog. 

2006-05-30  Andreas Krebbel  <krebbel1@de.ibm.com>

	* cse.c (validate_canon_reg, cse_insn): Don't change insns without
	calling recog.

From-SVN: r114241
This commit is contained in:
Andreas Krebbel 2006-05-30 16:54:08 +00:00 committed by Andreas Krebbel
parent 70233f3788
commit 67e0a632e6
2 changed files with 8 additions and 19 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2006-05-30 Andreas Krebbel <krebbel1@de.ibm.com>
* cse.c (validate_canon_reg, cse_insn): Don't change insns without
calling recog.
2006-05-30 Roger Sayle <roger@eyesopen.com>
* simplify-rtx.c (simplify_binary_operation): Unfactor the shift

22
gcc/cse.c
View File

@ -2728,17 +2728,10 @@ static void
validate_canon_reg (rtx *xloc, rtx insn)
{
rtx new = canon_reg (*xloc, insn);
int insn_code;
/* If replacing pseudo with hard reg or vice versa, ensure the
insn remains valid. Likewise if the insn has MATCH_DUPs. */
if (insn != 0 && new != 0
&& REG_P (new) && REG_P (*xloc)
&& (((REGNO (new) < FIRST_PSEUDO_REGISTER)
!= (REGNO (*xloc) < FIRST_PSEUDO_REGISTER))
|| GET_MODE (new) != GET_MODE (*xloc)
|| (insn_code = recog_memoized (insn)) < 0
|| insn_data[insn_code].n_dups > 0))
if (insn != 0 && new != 0)
validate_change (insn, xloc, new, 1);
else
*xloc = new;
@ -2748,8 +2741,7 @@ validate_canon_reg (rtx *xloc, rtx insn)
replace each register reference inside it
with the "oldest" equivalent register.
If INSN is nonzero and we are replacing a pseudo with a hard register
or vice versa, validate_change is used to ensure that INSN remains valid
If INSN is nonzero validate_change is used to ensure that INSN remains valid
after we make our substitution. The calls are made with IN_GROUP nonzero
so apply_change_group must be called upon the outermost return from this
function (unless INSN is zero). The result of apply_change_group can
@ -4943,17 +4935,9 @@ cse_insn (rtx insn, rtx libcall_insn)
rtx dest = SET_DEST (sets[i].rtl);
rtx src = SET_SRC (sets[i].rtl);
rtx new = canon_reg (src, insn);
int insn_code;
sets[i].orig_src = src;
if ((REG_P (new) && REG_P (src)
&& ((REGNO (new) < FIRST_PSEUDO_REGISTER)
!= (REGNO (src) < FIRST_PSEUDO_REGISTER)))
|| (insn_code = recog_memoized (insn)) < 0
|| insn_data[insn_code].n_dups > 0)
validate_change (insn, &SET_SRC (sets[i].rtl), new, 1);
else
SET_SRC (sets[i].rtl) = new;
validate_change (insn, &SET_SRC (sets[i].rtl), new, 1);
if (GET_CODE (dest) == ZERO_EXTRACT)
{