===================================================================
@@ -0,0 +1,50 @@
+/* Check that the 'extu.b' instruction is generated for short jump tables. */
+/* { dg-do compile { target "sh*-*-*" } } */
+/* { dg-options "-Os" } */
+/* { dg-skip-if "" { "sh*-*-*" } { "-m5*"} { "" } } */
+/* { dg-final { scan-assembler "extu.b" } } */
+
+int
+test (int arg)
+{
+ int rc;
+ switch (arg)
+ {
+ case 0:
+ asm ("nop\n\tnop\n\tnop\n\tnop\n\tnop\n\t"
+ "nop\n\tnop\n\tnop\n\tnop\n\tnop\n\tnop\n\t"
+ "mov r4,%0"
+ : "=r" (rc)
+ : "r" (arg));
+ break;
+ case 1:
+ asm ("nop\n\tnop\n\tnop\n\tnop\n\tnop\n\t"
+ "nop\n\tnop\n\tnop\n\tnop\n\tnop\n\tnop\n\t"
+ "mov r5,%0"
+ : "=r" (rc)
+ : "r" (arg));
+ break;
+ case 2:
+ asm ("nop\n\tnop\n\tnop\n\tnop\n\tnop\n\t"
+ "nop\n\tnop\n\tnop\n\tnop\n\tnop\n\tnop\n\t"
+ "mov r6,%0"
+ : "=r" (rc)
+ : "r" (arg));
+ break;
+ case 3:
+ asm ("nop\n\tnop\n\tnop\n\tnop\n\tnop\n\t"
+ "nop\n\tnop\n\tnop\n\tnop\n\tnop\n\tnop\n\tnop\n\t"
+ "mov r7,%0"
+ : "=r" (rc)
+ : "r" (arg));
+ break;
+ case 4:
+ asm ("nop\n\tnop\n\tnop\n\tnop\n\tnop\n\t"
+ "nop\n\tnop\n\tnop\n\tnop\n\tnop\n\tnop\n\tnop\n\t"
+ "mov r8,%0"
+ : "=r" (rc)
+ : "r" (arg));
+ break;
+ }
+ return rc;
+}
Hi, The attached patch adds the testcase as it was originally reported in the PR. Although it's not a problem on 4.8, I think it would be better to have this in the test suite. Tested with make -k check-gcc RUNTESTFLAGS="sh.exp=pr55146.c --target_board=sh-sim \{-m2/-ml,-m2/-mb,-m2a/-mb,-m4/-ml,-m4/-mb,-m4a/-ml,-m4a/-mb}" OK for trunk? Cheers, Oleg testsuite/ChangeLog: PR target/55146: * gcc.target/sh/pr55146.c: New.