Commit 61fb6bac by J"orn Rennecke Committed by Joern Rennecke

sh.c (gen_shl_and): Don't sign extend constant for kind two.

	* sh.c (gen_shl_and): Don't sign extend constant for kind two.
	Abort if trying to split kind 3 or 4 outside of combine.

From-SVN: r19772
parent 08e2846b
Fri May 15 11:21:16 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
* sh.c (gen_shl_and): Don't sign extend constant for kind two.
Abort if trying to split kind 3 or 4 outside of combine.
Fri May 15 01:47:37 1998 Jeffrey A Law (law@cygnus.com)
* mips.c (print_operand, case 'x'): Use HOST_WIDE_INT_PRINT_HEX.
......
......@@ -1335,13 +1335,13 @@ gen_shl_and (dest, left_rtx, mask_rtx, source)
}
case 4:
shift_gen_fun = gen_shifty_op;
case 2:
case 3:
/* If the topmost bit that matters is set, set the topmost bits
that don't matter. This way, we might be able to get a shorter
signed constant. */
if (mask & ((HOST_WIDE_INT)1 << 31 - total_shift))
mask |= (HOST_WIDE_INT)~0 << (31 - total_shift);
case 2:
/* Don't expand fine-grained when combining, because that will
make the pattern fail. */
if (rtx_equal_function_value_matters
......@@ -1349,6 +1349,10 @@ gen_shl_and (dest, left_rtx, mask_rtx, source)
{
rtx operands[3];
/* Cases 3 and 4 should be handled by this split
only while combining */
if (kind > 2)
abort ();
if (right)
{
emit_insn (gen_lshrsi3 (dest, source, GEN_INT (right)));
......
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