[PATCH 5/n, i386]: Simplify vec_extract post-reload splitters

[Uros Bizjak]

On Wed, May 8, 2013 at 8:04 PM, Uros Bizjak <ubizjak@gmail.com> wrote:

> We don't have to use emit_move_insn here, the same can be achieved in
> the (post-reload) splitter body:
>
> -  [(const_int 0)]
> -{
> -  operands[1] = adjust_address (operands[1], SImode, 4);
> -  emit_move_insn (operands[0], operands[1]);
> -  DONE;
> -})
> +  [(set (match_dup 0) (match_dup 1))]
> +  "operands[1] = adjust_address (operands[1], SImode, 4);")
>
> Following patch normalizes all similar contructs throughout the *.md
> files to the form above. Also, fix one wrong use of adjust_address_nv
> - the no-verify version should be used only in insn template printing.
>
> 2013-05-08  Uros Bizjak  <ubizjak@gmail.com>
>
>     * config/i386/mmx.md (*vec_extract* splitters): Simplify post-reload
>     splitter preparation statements.
>     * config/i386/sse.md (*vec_extract* splitters): Ditto.
>     (*avx_vperm_broadcast_<mode>): Use adjust_address instead of
>     adjust_address_nv.
>
> Tested on x86_64-pc-linux-gnu {,-m32}  and committed to mainline SVN.


For some reason I didn't commit the attached part... Committed now.

Uros.
-------------- next part --------------
Index: sse.md
===================================================================
--- sse.md	(revision 198718)
+++ sse.md	(working copy)
@@ -4299,15 +4299,12 @@
   "TARGET_SSE && !(MEM_P (operands[0]) && MEM_P (operands[1]))"
   "#"
   "&& reload_completed"
-  [(const_int 0)]
+  [(set (match_dup 0) (match_dup 1))]
 {
-  rtx op1 = operands[1];
-  if (REG_P (op1))
-    op1 = gen_rtx_REG (SFmode, REGNO (op1));
+  if (REG_P (operands[1]))
+    operands[1] = gen_rtx_REG (SFmode, REGNO (operands[1]));
   else
-    op1 = gen_lowpart (SFmode, op1);
-  emit_move_insn (operands[0], op1);
-  DONE;
+    operands[1] = adjust_address (operands[1], SFmode, 0);
 })
 
 (define_insn_and_split "*sse4_1_extractps"
@@ -4395,15 +4392,12 @@
   "TARGET_AVX && !(MEM_P (operands[0]) && MEM_P (operands[1]))"
   "#"
   "&& reload_completed"
-  [(const_int 0)]
+  [(set (match_dup 0) (match_dup 1))]
 {
-  rtx op1 = operands[1];
-  if (REG_P (op1))
-    op1 = gen_rtx_REG (<ssehalfvecmode>mode, REGNO (op1));
+  if (REG_P (operands[1]))
+    operands[1] = gen_rtx_REG (<ssehalfvecmode>mode, REGNO (operands[1]));
   else
-    op1 = gen_lowpart (<ssehalfvecmode>mode, op1);
-  emit_move_insn (operands[0], op1);
-  DONE;
+    operands[1] = adjust_address (operands[1], <ssehalfvecmode>mode, 0);
 })
 
 (define_insn "vec_extract_hi_<mode>"
@@ -4429,15 +4423,12 @@
   "TARGET_AVX && !(MEM_P (operands[0]) && MEM_P (operands[1]))"
   "#"
   "&& reload_completed"
-  [(const_int 0)]
+  [(set (match_dup 0) (match_dup 1))]
 {
-  rtx op1 = operands[1];
-  if (REG_P (op1))
-    op1 = gen_rtx_REG (<ssehalfvecmode>mode, REGNO (op1));
+  if (REG_P (operands[1]))
+    operands[1] = gen_rtx_REG (<ssehalfvecmode>mode, REGNO (operands[1]));
   else
-    op1 = gen_lowpart (<ssehalfvecmode>mode, op1);
-  emit_move_insn (operands[0], op1);
-  DONE;
+    operands[1] = adjust_address (operands[1], <ssehalfvecmode>mode, 0);
 })
 
 (define_insn "vec_extract_hi_<mode>"
@@ -4466,15 +4457,12 @@
   "TARGET_AVX && !(MEM_P (operands[0]) && MEM_P (operands[1]))"
   "#"
   "&& reload_completed"
-  [(const_int 0)]
+  [(set (match_dup 0) (match_dup 1))]
 {
-  rtx op1 = operands[1];
-  if (REG_P (op1))
-    op1 = gen_rtx_REG (V8HImode, REGNO (op1));
+  if (REG_P (operands[1]))
+    operands[1] = gen_rtx_REG (V8HImode, REGNO (operands[1]));
   else
-    op1 = gen_lowpart (V8HImode, op1);
-  emit_move_insn (operands[0], op1);
-  DONE;
+    operands[1] = adjust_address (operands[1], V8HImode, 0);
 })
 
 (define_insn "vec_extract_hi_v16hi"
@@ -4509,15 +4497,12 @@
   "TARGET_AVX && !(MEM_P (operands[0]) && MEM_P (operands[1]))"
   "#"
   "&& reload_completed"
-  [(const_int 0)]
+  [(set (match_dup 0) (match_dup 1))]
 {
-  rtx op1 = operands[1];
-  if (REG_P (op1))
-    op1 = gen_rtx_REG (V16QImode, REGNO (op1));
+  if (REG_P (operands[1]))
+    operands[1] = gen_rtx_REG (V16QImode, REGNO (operands[1]));
   else
-    op1 = gen_lowpart (V16QImode, op1);
-  emit_move_insn (operands[0], op1);
-  DONE;
+    operands[1] = adjust_address (operands[1], V16QImode, 0);
 })
 
 (define_insn "vec_extract_hi_v32qi"
@@ -5009,15 +4994,12 @@
 	  (match_operand:V2DF 1 "nonimmediate_operand")
 	  (parallel [(const_int 0)])))]
   "TARGET_SSE2 && reload_completed"
-  [(const_int 0)]
+  [(set (match_dup 0) (match_dup 1))]
 {
-  rtx op1 = operands[1];
-  if (REG_P (op1))
-    op1 = gen_rtx_REG (DFmode, REGNO (op1));
+  if (REG_P (operands[1]))
+    operands[1] = gen_rtx_REG (DFmode, REGNO (operands[1]));
   else
-    op1 = gen_lowpart (DFmode, op1);
-  emit_move_insn (operands[0], op1);
-  DONE;
+    operands[1] = adjust_address (operands[1], DFmode, 0);
 })
 
 (define_insn "*vec_extractv2df_0_sse"