[SH][committed] Fix PR 64652

[Oleg Endo]

Hi,

The attached patch fixes PR 64652.  Tested with
make -k check-gcc RUNTESTFLAGS="sh-torture.exp --target_board=sh-sim
\{-m2/-ml,-m2/-mb,-m2a/-mb,-m4/-ml,-m4/-mb,-m4a/-ml,-m4a/-mb}"
Committed as r219824.

Cheers,
Oleg

gcc/ChangeLog:
        PR target/64652
        * config/sh/sh.md (udivsi3_i4, divsi3_i4): Make use of sfunc address
        reg appear first in the parallel.

gcc/testsuite/ChangeLog:
        PR target/64652
        * gcc.target/sh/torture/pr64652.c: New.

Index: gcc/config/sh/sh.md
===================================================================
--- gcc/config/sh/sh.md	(revision 219823)
+++ gcc/config/sh/sh.md	(working copy)
@@ -2402,8 +2402,8 @@
    (clobber (reg:SI R4_REG))
    (clobber (reg:SI R5_REG))
    (clobber (reg:SI FPSCR_STAT_REG))
-   (use (reg:SI FPSCR_MODES_REG))
-   (use (match_operand:SI 1 "arith_reg_operand" "r"))]
+   (use (match_operand:SI 1 "arith_reg_operand" "r"))
+   (use (reg:SI FPSCR_MODES_REG))]
   "TARGET_FPU_DOUBLE && ! TARGET_FPU_SINGLE"
   "jsr	@%1%#"
   [(set_attr "type" "sfunc")
@@ -2674,8 +2674,8 @@
    (clobber (reg:DF DR0_REG))
    (clobber (reg:DF DR2_REG))
    (clobber (reg:SI FPSCR_STAT_REG))
-   (use (reg:SI FPSCR_MODES_REG))
-   (use (match_operand:SI 1 "arith_reg_operand" "r"))]
+   (use (match_operand:SI 1 "arith_reg_operand" "r"))
+   (use (reg:SI FPSCR_MODES_REG))]
   "TARGET_FPU_DOUBLE && ! TARGET_FPU_SINGLE"
   "jsr	@%1%#"
   [(set_attr "type" "sfunc")
Index: gcc/testsuite/gcc.target/sh/torture/pr64652.c
===================================================================
--- gcc/testsuite/gcc.target/sh/torture/pr64652.c	(revision 0)
+++ gcc/testsuite/gcc.target/sh/torture/pr64652.c	(revision 0)
@@ -0,0 +1,10 @@
+/* Check that using -mdiv=call-fp compiles without fuzz.  */
+/* { dg-do compile }  */
+/* { dg-additional-options "-mdiv=call-fp" }  */
+/* { dg-skip-if "" { "sh*-*-*" } { "-m5*" } { "" } }  */
+
+int
+test (int a, int b, int c, int d)
+{
+  return (a / b) + c + d;
+}