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2010-12-22 Ulrich Weigand <uweigand@de.ibm.com>
LP: #693425
Backport from mainline:
gcc/
* config/spu/spu.md ("mov<mode>"): Use nonimmediate_operand
predicate for destination operand.
* config/spu/spu.c (spu_expand_mov): If move destination is an
invalid subreg, perform move in the subreg's inner mode instead.
=== modified file 'gcc/config/spu/spu.c'
--- old/gcc/config/spu/spu.c 2010-08-04 09:53:04 +0000
+++ new/gcc/config/spu/spu.c 2010-12-22 15:20:44 +0000
@@ -4572,7 +4572,13 @@
spu_expand_mov (rtx * ops, enum machine_mode mode)
{
if (GET_CODE (ops[0]) == SUBREG && !valid_subreg (ops[0]))
- abort ();
+ {
+ /* Perform the move in the destination SUBREG's inner mode. */
+ ops[0] = SUBREG_REG (ops[0]);
+ mode = GET_MODE (ops[0]);
+ ops[1] = gen_lowpart_common (mode, ops[1]);
+ gcc_assert (ops[1]);
+ }
if (GET_CODE (ops[1]) == SUBREG && !valid_subreg (ops[1]))
{
=== modified file 'gcc/config/spu/spu.md'
--- old/gcc/config/spu/spu.md 2009-05-23 01:28:14 +0000
+++ new/gcc/config/spu/spu.md 2010-12-22 15:20:44 +0000
@@ -269,8 +269,8 @@
;; mov
(define_expand "mov<mode>"
- [(set (match_operand:ALL 0 "spu_nonimm_operand" "=r,r,r,m")
- (match_operand:ALL 1 "general_operand" "r,i,m,r"))]
+ [(set (match_operand:ALL 0 "nonimmediate_operand" "")
+ (match_operand:ALL 1 "general_operand" ""))]
""
{
if (spu_expand_mov(operands, <MODE>mode))
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