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2004-11-23 Richard Henderson <rth@redhat.com>
+ * rtl.h (validate_subreg): Declare.
+ * emit-rtl.c (validate_subreg): New.
+ (gen_rtx_SUBREG): Use it.
+ * simplify-rtx.c (simplify_subreg): Likewise.
+ (simplify_gen_subreg): Likewise. Remove duplicate asserts.
+ * expr.c (emit_move_insn_1): Tidy complex move code. Use memory
+ fallback whenever gen_realpart/gen_imagpart would not be able to
+ create SUBREGs.
+
+2004-11-23 Richard Henderson <rth@redhat.com>
+
* expmed.c (extract_bit_field): Use simplify_gen_subreg instead of
hard-coding avoiding calls to gen_rtx_SUBREG. Split complex return
modes to CONCAT.