[SH] PR 52480 - fix movua.l for big endian

[Oleg Endo]

Hello,

This is the same patch I posted in the PR.  It seems to fix the issue.
Tested on rev 192200 with
make -k check RUNTESTFLAGS="--target_board=sh-sim
\{-m2/-ml,-m2/-mb,-m2a/-mb,-m4/-ml,-m4/-mb,-m4a/-ml,-m4a/-mb}"

and no new failures.
OK?

Cheers,
Oleg

gcc/ChangeLog:

        PR target/52480
        * config/sh/sh.md (extv, extzv): Check that operands[3] is zero,
        regardless of the endianness.

testsuite/ChangeLog:

        PR target/52480
        * gcc.target/sh/sh4a-bitmovua.c: Compact skip-if list.  Add 
        runtime tests.

Index: gcc/testsuite/gcc.target/sh/sh4a-bitmovua.c
===================================================================
--- gcc/testsuite/gcc.target/sh/sh4a-bitmovua.c	(revision 192200)
+++ gcc/testsuite/gcc.target/sh/sh4a-bitmovua.c	(working copy)
@@ -1,7 +1,7 @@
 /* Verify that we generate movua to load unaligned 32-bit values on SH4A.  */
-/* { dg-do compile { target "sh*-*-*" } } */
-/* { dg-options "-O" } */
-/* { dg-skip-if "" { "sh*-*-*" } { "*" } { "-m4a" "-m4a-single" "-m4a-single-only" "-m4a-nofpu" } }  */
+/* { dg-do run { target "sh*-*-*" } } */
+/* { dg-options "-O1 -save-temps -fno-inline" } */
+/* { dg-skip-if "" { "sh*-*-*" } { "*" } { "-m4a*" } }  */
 /* { dg-final { scan-assembler-times "movua.l" 6 } } */
 
 /* Aligned.  */
@@ -64,4 +64,28 @@
   return y4.d;
 }
 
+#include <assert.h>
 
+int
+main (void)
+{
+  x1.d = 0x12345678;
+  assert (f1 () == 0x12345678);
+
+  x2.d = 0x12345678;
+  assert (f2 () == 0x12345678);
+
+  x3.d = 0x12345678;
+  assert (f3 () == 0x12345678);
+
+  y_1.d = 0x12345678;
+  assert (g1 () == 0x12345678);
+
+  y2.d = 0x12345678;
+  assert (g2 () == 0x12345678);
+
+  y3.d = 0x12345678;
+  assert (g3 () == 0x12345678);
+
+  return 0;
+}
Index: gcc/config/sh/sh.md
===================================================================
--- gcc/config/sh/sh.md	(revision 192200)
+++ gcc/config/sh/sh.md	(working copy)
@@ -12706,7 +12706,7 @@
    }
   if (TARGET_SH4A_ARCH
       && INTVAL (operands[2]) == 32
-      && INTVAL (operands[3]) == -24 * (BITS_BIG_ENDIAN != BYTES_BIG_ENDIAN)
+      && INTVAL (operands[3]) == 0
       && MEM_P (operands[1]) && MEM_ALIGN (operands[1]) < 32)
     {
       rtx src = adjust_address (operands[1], BLKmode, 0);
@@ -12738,7 +12738,7 @@
     }
   if (TARGET_SH4A_ARCH
       && INTVAL (operands[2]) == 32
-      && INTVAL (operands[3]) == -24 * (BITS_BIG_ENDIAN != BYTES_BIG_ENDIAN)
+      && INTVAL (operands[3]) == 0
       && MEM_P (operands[1]) && MEM_ALIGN (operands[1]) < 32)
     {
       rtx src = adjust_address (operands[1], BLKmode, 0);