re PR target/50751 (SH Target: Displacement addressing does not work for QImode and HImode)

	PR target/50751
	* gcc/target/sh/pr50751-1.c: New.
	* gcc/target/sh/pr50751-2.c: New.
	* gcc/target/sh/pr50751-3.c: New.

From-SVN: r185619

gcc/testsuite/ChangeLog

 2012-03-21  Oleg Endo  <olegendo@gcc.gnu.org>
 
+	PR target/50751
+	* gcc/target/sh/pr50751-1.c: New.
+	* gcc/target/sh/pr50751-2.c: New.
+	* gcc/target/sh/pr50751-3.c: New.
+
+2012-03-21  Oleg Endo  <olegendo@gcc.gnu.org>
+
 	PR target/52479
 	* gcc.target/sh/sh4a-cos.c: Remove.
 	* gcc.target/sh/sh4a-sin.c: Remove.

gcc/testsuite/gcc.target/sh/pr50751-1.c

+/* Check that the mov.b displacement addressing insn is generated.
+   If the insn is generated as expected, there should be no address 
+   calculations outside the mov insns.  */
+/* { dg-do compile { target "sh*-*-*" } } */
+/* { dg-options "-O1" } */
+/* { dg-skip-if "" { "sh*-*-*" } { "-m5*"} { "" } } */
+/* { dg-final { scan-assembler-not "add|sub" } } */
+
+void
+testfunc_00 (const char* ap, char* bp, char val)
+{
+  bp[0] = ap[15];
+  bp[2] = ap[5];
+  bp[9] = ap[7];
+  bp[0] = ap[15];
+  bp[4] = val;
+  bp[14] = val;
+}
+
+void
+testfunc_01 (volatile const char* ap, volatile char* bp, char val)
+{
+  bp[0] = ap[15];
+  bp[2] = ap[5];
+  bp[9] = ap[7];
+  bp[0] = ap[15];
+  bp[4] = val;
+  bp[14] = val;
+}
+

gcc/testsuite/gcc.target/sh/pr50751-2.c

+/* Check that the mov.b displacement addressing insn is generated and the 
+   base address is adjusted only once.  On SH2A this test is skipped because
+   there is a 4 byte mov.b insn that can handle larger displacements.  Thus
+   on SH2A the base address will not be adjusted in this case.  */
+/* { dg-do compile { target "sh*-*-*" } } */
+/* { dg-options "-O1" } */
+/* { dg-skip-if "" { "sh*-*-*" } { "-m5*" "-m2a*" } { "" } } */
+/* { dg-final { scan-assembler-times "add" 2 } } */
+
+void
+testfunc_00 (const char* ap, char* bp)
+{
+  bp[0] = ap[15];
+  bp[2] = ap[5];
+  bp[9] = ap[7];
+  bp[0] = ap[25];
+}
+
+void
+testfunc_01 (volatile const char* ap, volatile char* bp)
+{
+  bp[0] = ap[15];
+  bp[2] = ap[5];
+  bp[9] = ap[7];
+  bp[0] = ap[25];
+}
+

gcc/testsuite/gcc.target/sh/pr50751-3.c

+/* Check that on SH2A the 4 byte mov.b displacement insn is generated to
+   handle larger displacements.  If it is generated correctly, there should
+   be no base address adjustments outside the mov.b insns.  */
+/* { dg-do compile { target "sh*-*-*" } } */
+/* { dg-options "-O1" } */
+/* { dg-skip-if "" { "sh*-*-*" } { "*" } { "-m2a*" } } */
+/* { dg-final { scan-assembler-not "add|sub" } } */
+
+void
+testfunc_00 (const char* ap, char* bp)
+{
+  bp[100] = ap[15];
+  bp[200] = ap[50];
+  bp[900] = ap[71];
+  bp[0] = ap[25];
+}
+
+void
+testfunc_01 (volatile const char* ap, volatile char* bp)
+{
+  bp[100] = ap[15];
+  bp[200] = ap[50];
+  bp[900] = ap[71];
+  bp[0] = ap[25];
+}
+