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stor-layout.c (layout_type, [...]): Set TREE_UNSIGNED unless TYPE_MIN_VALUE is negative.

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* stor-layout.c (layout_type, case BOOLEAN_TYPE):
 Set TREE_UNSIGNED unless TYPE_MIN_VALUE is negative.

From-SVN: r6808
This commit is contained in:
Per Bothner 1994-03-17 21:33:36 -08:00
parent 7dcf01c29c
commit a6458cef63
1 changed files with 4 additions and 1 deletions
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5
gcc/stor-layout.c
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@ -880,12 +880,15 @@ layout_type (type)
}
break;
/* Pascal types */
/* Pascal and Chill types */
case BOOLEAN_TYPE: /* store one byte/boolean for now. */
TYPE_MODE (type) = QImode;
TYPE_SIZE (type) = size_int (GET_MODE_BITSIZE (TYPE_MODE (type)));
TYPE_PRECISION (type) = 1;
TYPE_ALIGN (type) = GET_MODE_ALIGNMENT (TYPE_MODE (type));
if (TREE_CODE (TYPE_MIN_VALUE (type)) == INTEGER_CST
&& tree_int_cst_sgn (TYPE_MIN_VALUE (type)) >= 0)
TREE_UNSIGNED (type) = 1;
break;
case CHAR_TYPE: