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fold-const.c (operand_equal_p): Update comment. 

2004-06-15  Paolo Bonzini  <bonzini@gnu.org>

	* fold-const.c (operand_equal_p): Update comment.

From-SVN: r83173
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Paolo Bonzini 2004-06-15 10:27:30 +00:00 committed by Paolo Bonzini
parent 7b14411a87
commit 3dd8069d49
2 changed files with 8 additions and 4 deletions
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gcc/ChangeLog
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@ -1,3 +1,7 @@
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> 2004-06-15 Kazuhiro Inaoka <inaoka.kazuhiro@renesas.com>
* config/m32r/m32r.h (RETURN_ADDR_RTX): Define. * config/m32r/m32r.h (RETURN_ADDR_RTX): Define.

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gcc/fold-const.c
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@ -2337,10 +2337,10 @@ truth_value_p (enum tree_code code)
executed between the evaluation of its "operands" (which may often executed between the evaluation of its "operands" (which may often
be evaluated in arbitrary order). Hence if the operands themselves be evaluated in arbitrary order). Hence if the operands themselves
don't side-effect, the VAR_DECLs, PARM_DECLs etc... must hold the don't side-effect, the VAR_DECLs, PARM_DECLs etc... must hold the
same value in each operand/subexpression. Hence a zero value for same value in each operand/subexpression. Hence leaving OEP_ONLY_CONST
ONLY_CONST assumes isochronic (or instantaneous) tree equivalence. unset means assuming isochronic (or instantaneous) tree equivalence.
If comparing arbitrary expression trees, such as from different Unless comparing arbitrary expression trees, such as from different
statements, ONLY_CONST must usually be nonzero. statements, this flag can usually be left unset.
If OEP_PURE_SAME is set, then pure functions with identical arguments 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 are considered the same. It is used when the caller has other ways