gcc/

	* doc/md.texi (extv@var{m}, extvmisalign@var{m}, extzv@var{m})
	(extzvmisalign@var{m}, insv@var{m}, insvmisalign@var{m}): Document.
	(insv, extv, extzv): Deprecate.
	* optabs.def (insv_optab, extv_optab, extzv_optab)
	(insvmisalign_optab, extvmisalign_optab, extzvmisalign_optab):
	New optabs.
	* optabs.c (get_optab_extraction_insn): New function.
	(get_extraction_insn): Use it.
	* config/mips/mips.md (extv): Split into...
	(extvmisalign<mode>, extv<mode>): ...these new patterns.  Rename
	existing extv<mode> pattern to...
	(*extv<mode>): ...this.
	(extzv): Split into...
	(extzvmisalign<mode>, extzv<mode>): ...these new patterns.  Rename
	existing extzv<mode> pattern to...
	(*extzv<mode>): ...this.
	(insv): Split into...
	(insvmisalign<mode>, insv<mode>): ...these new patterns.  Rename
	existing insv<mode> pattern to...
	(*insv<mode>): ...this.  Use const_int_operand rather than
	immediate_operand.
	* config/mips/mips.c (mips_block_move_straight): Use set_mem_size
	to set the size of BLKmode accesses.
	(mips_get_unaligned_mem): Require OP0 to be a BLKmode memory,
	turning it from an "rtx *" to an rtx.
	(mips_expand_ext_as_unaligned_load): Simplify for new optab
	interface.  Update call to mips_get_unaligned_mem.
	(mips_expand_ins_as_unaligned_store): Update call to
	mips_get_unaligned_mem.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@193606 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 35 insertions, 3 deletions

diff --git a/gcc/optabs.c b/gcc/optabs.c
index 66c0337b0fd..353727f3324 100644
--- a/gcc/optabs.c
+++ b/gcc/optabs.c
@@ -8294,6 +8294,35 @@ get_traditional_extraction_insn (extraction_insn *insn,
   return true;
 }
 
+/* Return true if an optab exists to perform an insertion or extraction
+   of type TYPE in mode MODE.  Describe the instruction in *INSN if so.
+
+   REG_OPTAB is the optab to use for register structures and
+   MISALIGN_OPTAB is the optab to use for misaligned memory structures.
+   POS_OP is the operand number of the bit position.  */
+
+static bool
+get_optab_extraction_insn (struct extraction_insn *insn,
+			   enum extraction_type type,
+			   enum machine_mode mode, direct_optab reg_optab,
+			   direct_optab misalign_optab, int pos_op)
+{
+  direct_optab optab = (type == ET_unaligned_mem ? misalign_optab : reg_optab);
+  enum insn_code icode = direct_optab_handler (optab, mode);
+  if (icode == CODE_FOR_nothing)
+    return false;
+
+  const struct insn_data_d *data = &insn_data[icode];
+
+  insn->icode = icode;
+  insn->field_mode = mode;
+  insn->struct_mode = (type == ET_unaligned_mem ? BLKmode : mode);
+  insn->pos_mode = data->operand[pos_op].mode;
+  if (insn->pos_mode == VOIDmode)
+    insn->pos_mode = word_mode;
+  return true;
+}
+
 /* Return true if an instruction exists to perform an insertion or
    extraction (PATTERN says which) of type TYPE in mode MODE.
    Describe the instruction in *INSN if so.  */
@@ -8311,21 +8340,24 @@ get_extraction_insn (extraction_insn *insn,
 	  && get_traditional_extraction_insn (insn, type, mode,
 					      CODE_FOR_insv, 0, 3))
 	return true;
-      return false;
+      return get_optab_extraction_insn (insn, type, mode, insv_optab,
+					insvmisalign_optab, 2);
 
     case EP_extv:
       if (HAVE_extv
 	  && get_traditional_extraction_insn (insn, type, mode,
 					      CODE_FOR_extv, 1, 0))
 	return true;
-      return false;
+      return get_optab_extraction_insn (insn, type, mode, extv_optab,
+					extvmisalign_optab, 3);
 
     case EP_extzv:
       if (HAVE_extzv
 	  && get_traditional_extraction_insn (insn, type, mode,
 					      CODE_FOR_extzv, 1, 0))
 	return true;
-      return false;
+      return get_optab_extraction_insn (insn, type, mode, extzv_optab,
+					extzvmisalign_optab, 3);
 
     default:
       gcc_unreachable ();