Mon Apr 27 08:55:23 1998 Michael Meissner <meissner@cygnus.com>
+ * final.c (split_double): Avoid a compiler warning if
+ BITS_PER_WORD is less than or equal to HOST_BIT_PER_WIDE_INT.
+
* rtl.h (JUMP_{CROSS_JUMP,NOOP_MOVES,AFTER_REGSCAN}): New macros
for calling jump_optimize.
Extract the bits from it into two word-sized pieces.
Sign extend each half to HOST_WIDE_INT. */
rtx low, high;
-
- low = GEN_INT (INTVAL (value) << (HOST_BITS_PER_WIDE_INT - BITS_PER_WORD) >> (HOST_BITS_PER_WIDE_INT - BITS_PER_WORD));
- high = GEN_INT (INTVAL (value) << (HOST_BITS_PER_WIDE_INT - 2 * BITS_PER_WORD) >> (HOST_BITS_PER_WIDE_INT - BITS_PER_WORD));
+ /* On machines where HOST_BITS_PER_WIDE_INT == BITS_PER_WORD
+ the shift below will cause a compiler warning, even though
+ this code won't be executed. So put the shift amounts in
+ variables to avoid the warning. */
+ int rshift = HOST_BITS_PER_WIDE_INT - BITS_PER_WORD;
+ int lshift = HOST_BITS_PER_WIDE_INT - 2 * BITS_PER_WORD;
+
+ low = GEN_INT ((INTVAL (value) << rshift) >> rshift);
+ high = GEN_INT ((INTVAL (value) << lshift) >> rshift);
if (WORDS_BIG_ENDIAN)
{
*first = high;