1 files changed, 91 insertions, 0 deletions
diff --git a/regress/sys/arch/sparc64/emul-popc/simm/simm13.c b/regress/sys/arch/sparc64/emul-popc/simm/simm13.c
new file mode 100644
index 00000000000..4ec75642a81
--- /dev/null
+++ b/regress/sys/arch/sparc64/emul-popc/simm/simm13.c
@@ -0,0 +1,91 @@
+/*	$OpenBSD: simm13.c,v 1.1 2003/08/19 05:25:14 jason Exp $	*/
+
+/*
+ * Copyright (c) 2003 Jason L. Wright (jason@thought.net)
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/types.h>
+#include <sys/mman.h>
+#include <machine/instr.h>
+#include <err.h>
+#include <stdio.h>
+
+#define	SIGN_EXT13(v)	(((int64_t)(v) << 51) >> 51)
+
+void
+gen_simm(u_int32_t *p, int imm)
+{
+	/*
+	 * generate the following asm, and flush the pipeline
+	 *	retl
+	 *	 popc imm, %o0
+	 */
+	p[0] = I_JMPLri(I_G0, I_O7, 8);
+	p[1] = _I_OP3_R_RI(I_O0, IOP3_POPC, I_G0, imm);
+}
+
+int
+testit(void *v)
+{
+	int (*func)(void) = v;
+
+	return ((*func)());
+}
+
+int64_t
+c_popc(int64_t v)
+{
+	int64_t bit, r;
+
+	for (bit = 1, r = 0; bit; bit <<= 1)
+		if (v & bit)
+			r++;
+	return (r);
+}
+
+int
+main()
+{
+	void *v;
+	int i, a, c;
+	int r = 0;
+
+	v = mmap(NULL, 2 * sizeof(union instr), PROT_WRITE|PROT_EXEC|PROT_READ,
+	    MAP_ANON, -1, 0);
+	if (v == MAP_FAILED)
+		err(1, "mmap");
+
+	for (i = -4096; i <= 4095; i++) {
+		gen_simm(v, i);
+		c = c_popc(SIGN_EXT13(i));
+		a = testit(v);
+		if (c != a) {
+			printf("BAD: %d: asm %d, c %d\n", i, a, c);
+			r = 1;
+		}
+	}
+
+	return (r);
+}