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expr.c (expand_expr): STRIP_NOPS before checking against MAX_INTEGER_COMPUTATION_MODE

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* expr.c (expand_expr): STRIP_NOPS before checking against
	MAX_INTEGER_COMPUTATION_MODE
	(check_max_integer_computation_mode): Likewise.

From-SVN: r27715
This commit is contained in:
Jason Merrill 1999-06-23 00:49:46 +00:00 committed by Jason Merrill
parent 49208cca8d
commit 5f652c070f
2 changed files with 18 additions and 2 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
Wed Jun 23 00:48:21 1999 Jason Merrill <jason@yorick.cygnus.com>
* expr.c (expand_expr): STRIP_NOPS before checking against
MAX_INTEGER_COMPUTATION_MODE
(check_max_integer_computation_mode): Likewise.
Tue Jun 22 20:23:43 1999 Jim Wilson <wilson@cygnus.com>
* md.texi (smul@var{m}3_highpart): Add missing 's' prefix.

14
gcc/expr.c
View File

@ -5397,9 +5397,13 @@ void
check_max_integer_computation_mode (exp)
tree exp;
{
enum tree_code code = TREE_CODE (exp);
enum tree_code code;
enum machine_mode mode;
/* Strip any NOPs that don't change the mode. */
STRIP_NOPS (exp);
code = TREE_CODE (exp);
/* We must allow conversions of constants to MAX_INTEGER_COMPUTATION_MODE. */
if (code == NOP_EXPR
&& TREE_CODE (TREE_OPERAND (exp, 0)) == INTEGER_CST)
@ -5578,7 +5582,12 @@ expand_expr (exp, target, tmode, modifier)
}
#ifdef MAX_INTEGER_COMPUTATION_MODE
/* Only check stuff here if the mode we want is different from the mode
of the expression; if it's the same, check_max_integer_computiation_mode
will handle it. Do we really need to check this stuff at all? */
if (target
&& GET_MODE (target) != mode
&& TREE_CODE (exp) != INTEGER_CST
&& TREE_CODE (exp) != PARM_DECL
&& TREE_CODE (exp) != ARRAY_REF
@ -5595,7 +5604,8 @@ expand_expr (exp, target, tmode, modifier)
fatal ("unsupported wide integer operation");
}
if (TREE_CODE (exp) != INTEGER_CST
if (tmode != mode
&& TREE_CODE (exp) != INTEGER_CST
&& TREE_CODE (exp) != PARM_DECL
&& TREE_CODE (exp) != ARRAY_REF
&& TREE_CODE (exp) != COMPONENT_REF