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(movM): If REG_WAS_0, make sure the reg hasn't changed since then. 

From-SVN: r3712
This commit is contained in:
James Van Artsdalen 1993-03-12 09:18:56 +00:00
parent 9516a9afd7
commit dc577adaac
2 changed files with 17 additions and 7 deletions
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12
gcc/config/tahoe/tahoe.md
View File

@ -57,9 +57,11 @@
rtx link;
if (operands[1] == const1_rtx
&& (link = find_reg_note (insn, REG_WAS_0, 0))
&& ! XEXP (link, 0)->volatil
&& ! INSN_DELETED_P (XEXP (link, 0))
&& GET_CODE (XEXP (link, 0)) != NOTE
&& no_labels_between_p (XEXP (link, 0), insn))
&& no_labels_between_p (XEXP (link, 0), insn)
/* Make sure the reg hasn't been clobbered. */
&& ! reg_set_between_p (operands[0], XEXP (link, 0), insn))
return \"incl %0\";
if (GET_CODE (operands[1]) == SYMBOL_REF || GET_CODE (operands[1]) == CONST)
{
@ -86,9 +88,11 @@
rtx link;
if (operands[1] == const1_rtx
&& (link = find_reg_note (insn, REG_WAS_0, 0))
&& ! XEXP (link, 0)->volatil
&& ! INSN_DELETED_P (XEXP (link, 0))
&& GET_CODE (XEXP (link, 0)) != NOTE
&& no_labels_between_p (XEXP (link, 0), insn))
&& no_labels_between_p (XEXP (link, 0), insn)
/* Make sure the reg hasn't been clobbered. */
&& ! reg_set_between_p (operands[0], XEXP (link, 0), insn))
return \"incw %0\";
if (operands[1] == const0_rtx)
return \"clrw %0\";

12
gcc/config/vax/vax.md
View File

@ -207,7 +207,9 @@
&& ! INSN_DELETED_P (XEXP (link, 0))
&& GET_CODE (XEXP (link, 0)) != NOTE
/* Make sure cross jumping didn't happen here. */
&& no_labels_between_p (XEXP (link, 0), insn))
&& no_labels_between_p (XEXP (link, 0), insn)
/* Make sure the reg hasn't been clobbered. */
&& ! reg_set_between_p (operands[0], XEXP (link, 0), insn))
return \"incl %0\";
if (GET_CODE (operands[1]) == SYMBOL_REF || GET_CODE (operands[1]) == CONST)
{
@ -250,7 +252,9 @@
&& ! INSN_DELETED_P (XEXP (link, 0))
&& GET_CODE (XEXP (link, 0)) != NOTE
/* Make sure cross jumping didn't happen here. */
&& no_labels_between_p (XEXP (link, 0), insn))
&& no_labels_between_p (XEXP (link, 0), insn)
/* Make sure the reg hasn't been clobbered. */
&& ! reg_set_between_p (operands[0], XEXP (link, 0), insn))
return \"incw %0\";
if (GET_CODE (operands[1]) == CONST_INT)
@ -302,7 +306,9 @@
&& ! INSN_DELETED_P (XEXP (link, 0))
&& GET_CODE (XEXP (link, 0)) != NOTE
/* Make sure cross jumping didn't happen here. */
&& no_labels_between_p (XEXP (link, 0), insn))
&& no_labels_between_p (XEXP (link, 0), insn)
/* Make sure the reg hasn't been clobbered. */
&& ! reg_set_between_p (operands[0], XEXP (link, 0), insn))
return \"incb %0\";
if (GET_CODE (operands[1]) == CONST_INT)