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-rw-r--r--test/apx.cpp35
1 files changed, 35 insertions, 0 deletions
diff --git a/test/apx.cpp b/test/apx.cpp
index 29a7850..d5ca303 100644
--- a/test/apx.cpp
+++ b/test/apx.cpp
@@ -930,3 +930,38 @@ CYBOZU_TEST_AUTO(imul_zu)
CYBOZU_TEST_EQUAL(c.getSize(), n);
CYBOZU_TEST_EQUAL_ARRAY(c.getCode(), tbl, n);
}
+
+CYBOZU_TEST_AUTO(lzcnt)
+{
+ struct Code : Xbyak::CodeGenerator {
+ Code()
+ {
+ lzcnt(r16w, r17w);
+ lzcnt(r16d, r17d);
+ lzcnt(r16, r17);
+ lzcnt(r16|T_nf, r17);
+ lzcnt(rax|T_nf, rcx);
+ lzcnt(rax, ptr [r18]);
+
+ tzcnt(r16w, r17w);
+ tzcnt(r16d, r17d);
+ tzcnt(r16, r17);
+ tzcnt(r16|T_nf, r17);
+ tzcnt(rax|T_nf, rcx);
+ tzcnt(rax, ptr [r18]);
+ }
+ } c;
+ const uint8_t tbl[] = {
+ // lzcnt
+ 0x62, 0xec, 0x7d, 0x08, 0xf5, 0xc1, 0x62, 0xec, 0x7c, 0x08, 0xf5, 0xc1, 0x62, 0xec, 0xfc, 0x08,
+ 0xf5, 0xc1, 0x62, 0xec, 0xfc, 0x0c, 0xf5, 0xc1, 0x62, 0xf4, 0xfc, 0x0c, 0xf5, 0xc1, 0x62, 0xfc,
+ 0xfc, 0x08, 0xf5, 0x02,
+ // tzcnt
+ 0x62, 0xec, 0x7d, 0x08, 0xf4, 0xc1, 0x62, 0xec, 0x7c, 0x08, 0xf4, 0xc1, 0x62, 0xec, 0xfc, 0x08,
+ 0xf4, 0xc1, 0x62, 0xec, 0xfc, 0x0c, 0xf4, 0xc1, 0x62, 0xf4, 0xfc, 0x0c, 0xf4, 0xc1, 0x62, 0xfc,
+ 0xfc, 0x08, 0xf4, 0x02,
+ };
+ const size_t n = sizeof(tbl);
+ CYBOZU_TEST_EQUAL(c.getSize(), n);
+ CYBOZU_TEST_EQUAL_ARRAY(c.getCode(), tbl, n);
+}