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(cse_insn): Add missing definition of var TEM; clean up shadowed uses. 

From-SVN: r6920
This commit is contained in:
Richard Kenner 1994-03-30 16:52:21 -05:00
parent b0468b846e
commit 92f9aa5176
1 changed files with 7 additions and 9 deletions
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16
gcc/cse.c
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@ -5879,6 +5879,7 @@ cse_insn (insn, in_libcall_block)
{
register rtx x = PATTERN (insn);
register int i;
rtx tem;
register int n_sets = 0;
/* Records what this insn does to set CC0. */
@ -6038,14 +6039,11 @@ cse_insn (insn, in_libcall_block)
fold_rtx (x, insn);
}
if (n_sets == 1 && REG_NOTES (insn) != 0)
{
/* Store the equivalent value in SRC_EQV, if different. */
rtx tem = find_reg_note (insn, REG_EQUAL, NULL_RTX);
if (tem && ! rtx_equal_p (XEXP (tem, 0), SET_SRC (sets[0].rtl)))
src_eqv = canon_reg (XEXP (tem, 0), NULL_RTX);
}
/* Store the equivalent value in SRC_EQV, if different. */
if (n_sets == 1 && REG_NOTES (insn) != 0
&& (tem = find_reg_note (insn, REG_EQUAL, NULL_RTX)) != 0
&& ! rtx_equal_p (XEXP (tem, 0), SET_SRC (sets[0].rtl)))
src_eqv = canon_reg (XEXP (tem, 0), NULL_RTX);
/* Canonicalize sources and addresses of destinations.
We do this in a separate pass to avoid problems when a MATCH_DUP is
@ -6683,7 +6681,7 @@ cse_insn (insn, in_libcall_block)
if (n_sets == 1 && src_const && GET_CODE (dest) == REG
&& GET_CODE (src_const) != REG)
{
rtx tem = find_reg_note (insn, REG_EQUAL, NULL_RTX);
tem = find_reg_note (insn, REG_EQUAL, NULL_RTX);
/* Record the actual constant value in a REG_EQUAL note, making
a new one if one does not already exist. */