Changeset 63691 in vbox

Timestamp:

Sep 2, 2016 12:24:25 PM (8 years ago)

Author:

vboxsync

Message:

Runtime/testcase: added tests for ASMBitFirstSetU64()/ASMBitLastSetU64()

File:

• trunk/src/VBox/Runtime/testcase/tstRTBitOperations.cpp (modified) (1 diff)

trunk/src/VBox/Runtime/testcase/tstRTBitOperations.cpp

@@ -428 +428 @@
         CHECK(ASMBitFirstSetU32(1 << i) == (unsigned)i + 1);
 
+    CHECK(ASMBitLastSetU64(UINT64_C(0)) == 0);
+    CHECK(ASMBitLastSetU64(UINT64_C(1)) == 1);
+    CHECK(ASMBitLastSetU64(UINT64_C(0x80000000)) == 32);
+    CHECK(ASMBitLastSetU64(UINT64_C(0xffffffff)) == 32);
+    CHECK(ASMBitLastSetU64(RT_BIT_64(33) | RT_BIT_64(11)) == 34);
+    for (i = 0; i < 64; i++)
+        CHECK(ASMBitLastSetU64(UINT64_C(1) << i) == (unsigned)i + 1);
+
+    CHECK(ASMBitFirstSetU64(UINT64_C(0)) == 0);
+    CHECK(ASMBitFirstSetU64(UINT64_C(1)) == 1);
+    CHECK(ASMBitFirstSetU64(UINT64_C(0x80000000)) == 32);
+    CHECK(ASMBitFirstSetU64(UINT64_C(0xffffffff)) == 1);
+    CHECK(ASMBitFirstSetU64(RT_BIT_64(33) | RT_BIT_64(11)) == 12);
+    for (i = 0; i < 64; i++)
+        CHECK(ASMBitFirstSetU64(UINT64_C(1) << i) == (unsigned)i + 1);
+
     /*
      * Special tests.