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expr.c (check_max_integer_computation_mode): Allow conversions of constant integers to MAX_INTEGER_COMPUTATION_MODE.

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* expr.c (check_max_integer_computation_mode): Allow conversions
        of constant integers to MAX_INTEGER_COMPUTATION_MODE.
        (expand_expr): Likewise.

From-SVN: r21349
This commit is contained in:
Jeffrey A Law 1998-07-23 12:51:00 +00:00 committed by Jeff Law
parent 57b630a92b
commit 71bca5068d
2 changed files with 14 additions and 2 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
Thu Jul 23 13:49:41 1998 Jeffrey A Law (law@cygnus.com)
* expr.c (check_max_integer_computation_mode): Allow conversions
of constant integers to MAX_INTEGER_COMPUTATION_MODE.
(expand_expr): Likewise.
Thu Jul 23 11:12:06 1998 Alexandre Petit-Bianco <apbianco@cygnus.com>
* expr.c (expand_expr): Expand RETURN_EXPR.

10
gcc/expr.c
View File

@ -5069,6 +5069,11 @@ check_max_integer_computation_mode (exp)
enum tree_code code = TREE_CODE (exp);
enum machine_mode mode;
/* We must allow conversions of constants to MAX_INTEGER_COMPUTATION_MODE. */
if (code == NOP_EXPR
&& TREE_CODE (TREE_OPERAND (exp, 0)) == INTEGER_CST)
return;
/* First check the type of the overall operation. We need only look at
unary, binary and relational operations. */
if (TREE_CODE_CLASS (code) == '1'
@ -5229,7 +5234,7 @@ expand_expr (exp, target, tmode, modifier)
}
#ifdef MAX_INTEGER_COMPUTATION_MODE
if (target)
if (target && TREE_CODE (exp) != INTEGER_CST)
{
enum machine_mode mode = GET_MODE (target);
@ -5238,7 +5243,8 @@ expand_expr (exp, target, tmode, modifier)
fatal ("unsupported wide integer operation");
}
if (GET_MODE_CLASS (tmode) == MODE_INT
if (TREE_CODE (exp) != INTEGER_CST
&& GET_MODE_CLASS (tmode) == MODE_INT
&& tmode > MAX_INTEGER_COMPUTATION_MODE)
fatal ("unsupported wide integer operation");