2004-06-15 Paolo Bonzini <bonzini@gnu.org>
* fold-const.c (operand_equal_p): Update comment.
From-SVN: r83173
+2004-06-15 Paolo Bonzini <bonzini@gnu.org>
+
+ * fold-const.c (operand_equal_p): Update comment.
+
2004-06-15 Kazuhiro Inaoka <inaoka.kazuhiro@renesas.com>
* config/m32r/m32r.h (RETURN_ADDR_RTX): Define.
2004-06-15 Kazuhiro Inaoka <inaoka.kazuhiro@renesas.com>
* config/m32r/m32r.h (RETURN_ADDR_RTX): Define.
executed between the evaluation of its "operands" (which may often
be evaluated in arbitrary order). Hence if the operands themselves
don't side-effect, the VAR_DECLs, PARM_DECLs etc... must hold the
executed between the evaluation of its "operands" (which may often
be evaluated in arbitrary order). Hence if the operands themselves
don't side-effect, the VAR_DECLs, PARM_DECLs etc... must hold the
- same value in each operand/subexpression. Hence a zero value for
- ONLY_CONST assumes isochronic (or instantaneous) tree equivalence.
- If comparing arbitrary expression trees, such as from different
- statements, ONLY_CONST must usually be nonzero.
+ same value in each operand/subexpression. Hence leaving OEP_ONLY_CONST
+ unset means assuming isochronic (or instantaneous) tree equivalence.
+ Unless comparing arbitrary expression trees, such as from different
+ statements, this flag can usually be left unset.
If OEP_PURE_SAME is set, then pure functions with identical arguments
are considered the same. It is used when the caller has other ways
If OEP_PURE_SAME is set, then pure functions with identical arguments
are considered the same. It is used when the caller has other ways