[Bug target/85473] internal compiler error: in emit_move_insn, at expr.c:3722

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85473

--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> ---
Something like this

diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index dc80b34f302..99feb5ea629 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -37141,11 +37141,10 @@ ix86_expand_builtin (tree exp, rtx target, rtx
subtarget,
       arg1 = CALL_EXPR_ARG (exp, 1);
       op0 = expand_normal (arg0);
       op1 = expand_normal (arg1);
-      mode0 = (TARGET_64BIT ? DImode : SImode);

-      op0 = force_reg (mode0, op0);
-      if (!memory_operand (op1, mode0))
-  op1 = gen_rtx_MEM (mode0, op1);
+      op0 = ix86_zero_extend_to_Pmode (op0);
+      if (!memory_operand (op1, XImode))
+  op1 = gen_rtx_MEM (XImode, op1);

       insn = (TARGET_64BIT
      ? gen_movdir64b_di (op0, op1)
diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index a134ca88014..d01e3c631b5 100644
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -20697,8 +20697,8 @@
   [(set_attr "type" "other")])

 (define_insn "movdir64b_<mode>"
-  [(unspec_volatile:SWI48[(match_operand:SWI48 0 "register_operand" "r")
-  (match_operand:SWI48 1 "memory_operand")]
+  [(unspec_volatile:XI [(match_operand:P 0 "register_operand" "r")
+  (match_operand:XI 1 "memory_operand")]
       UNSPECV_MOVDIR64B)]
   "TARGET_MOVDIR64B"
   "movdir64b\t{%1, %0|%0, %1}"