digger-bk0010/gcc-KP1801BM1.patch at main · prcoder-1/digger-bk0010 · GitHub

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diff -urp a/gcc/config/pdp11/pdp11.cc b/src/gcc-14.2.0/gcc/config/pdp11/pdp11.cc
--- a/gcc/config/pdp11/pdp11.cc	2024-08-01 11:17:14.000000000 +0300
+++ b/gcc-14.2.0/src/gcc-14.2.0/gcc/config/pdp11/pdp11.cc	2025-01-03 23:56:58.555977060 +0300
@@ -2063,8 +2063,12 @@ pdp11_assemble_shift (rtx *operands, mac
   if (!small)
     {
       /* Loop case, emit the count-down and branch if not done.  */
-      output_asm_insn ("dec\t%2", operands);
-      output_asm_insn ("bne\t%l0", lb);
+      rtx tmpops[2];
+      tmpops[0] = operands[2];
+      tmpops[1] = lb[0];
+      output_asm_insn ("sob\t%0, %l1", tmpops);
+      // output_asm_insn ("dec\t%2", operands);
+      // output_asm_insn ("bne\t%l0", lb);
     }
   return "";
 }

diff -urp a/gcc/config/pdp11/pdp11.md b/gcc-14.2.0/src/gcc-14.2.0/gcc/config/pdp11/pdp11.md
--- a/gcc/config/pdp11/pdp11.md	2024-08-01 11:17:14.000000000 +0300
+++ b/gcc-14.2.0/src/gcc-14.2.0/gcc/config/pdp11/pdp11.md	2025-01-03 22:32:28.201616716 +0300
@@ -333,7 +333,7 @@
 	      (set (match_dup 0)
 		   (plus:HI (match_dup 0)
 			 (const_int -1)))])]
-  "TARGET_40_PLUS"
+  ""
   "{
     if (GET_MODE (operands[0]) != HImode)
       FAIL;
@@ -351,9 +351,9 @@
    (set (match_dup 0)
 	(plus:HI (match_dup 0)
 		 (const_int -1)))]
-  "TARGET_40_PLUS"
+  ""
   "#"
-  "&& reload_completed"
+  "reload_completed"
   [(parallel [(set (pc)
 		   (if_then_else
 		    (ne (match_dup 0) (const_int 1))
@@ -380,7 +380,7 @@
 	(plus:HI (match_dup 0)
 	      (const_int -1)))
    (clobber (reg:CC CC_REGNUM))]
-  "TARGET_40_PLUS && reload_completed"
+  "reload_completed"
   "*
 {
  rtx lb[1];
@@ -746,13 +746,7 @@
     output_asm_insn (\"mov\t(%1)+,(%0)+\", operands);
   else
     output_asm_insn (\"movb\t(%1)+,(%0)+\", operands);
-  if (TARGET_40_PLUS)
-    output_asm_insn (\"sob\t%0,%l1\", lb);
-  else
-    {
-      output_asm_insn (\"dec\t%0\", lb);
-      output_asm_insn (\"bne\t%l1\", lb);
-    }
+    output_asm_insn (\"sob\t%0,%l1\", lb);
   return \"\";
 }"
   [(set (attr "length")
@@ -1541,9 +1535,9 @@
   [(set (match_operand:HI 0 "nonimmediate_operand" "=rR,Q")
 	(xor:HI (match_operand:HI 1 "general_operand" "%0,0")
 		(match_operand:HI 2 "register_operand" "r,r")))]
-  "TARGET_40_PLUS"
+  ""
   "#"
-  "&& reload_completed"
+  "reload_completed"
   [(parallel [(set (match_dup 0)
 		   (xor:HI (match_dup 1) (match_dup 2)))
 	      (clobber (reg:CC CC_REGNUM))])]
@@ -1555,7 +1549,7 @@
 	(xor:HI (match_operand:HI 1 "general_operand" "%0,0")
 	     (match_operand:HI 2 "register_operand" "r,r")))
    (clobber (reg:CC CC_REGNUM))]
-  "TARGET_40_PLUS && reload_completed"
+  "reload_completed"
   "xor\t%2,%0"
   [(set_attr "length" "2,4")])