[wasm] Mask shift counts on architectures that don't implicitly mask.

test/cctest/wasm/test-run-wasm.cc

Index: test/cctest/wasm/test-run-wasm.cc
diff --git a/test/cctest/wasm/test-run-wasm.cc b/test/cctest/wasm/test-run-wasm.cc
index 617cec6a0f291f8c5ceb7e06ac3c976c03160a81..7de39a27d22075fd58774eca5bd1bfdfaa7f362e 100644
--- a/test/cctest/wasm/test-run-wasm.cc
+++ b/test/cctest/wasm/test-run-wasm.cc
@@ -324,6 +324,78 @@ TEST(Run_WasmI32Eqz) {
   TestInt32Unop(kExprI32Eqz, 1, 0);
 }
 
+TEST(Run_WasmI32Shl) {
+  WasmRunner<uint32_t> r(MachineType::Uint32(), MachineType::Uint32());
+  BUILD(r, WASM_I32_SHL(WASM_GET_LOCAL(0), WASM_GET_LOCAL(1)));
+
+  FOR_UINT32_INPUTS(i) {
+    FOR_UINT32_INPUTS(j) {
+      uint32_t expected = (*i) << (*j & 0x1f);
+      CHECK_EQ(expected, r.Call(*i, *j));
+    }
+  }
+}
+
+TEST(Run_WasmI32Shr) {
+  WasmRunner<uint32_t> r(MachineType::Uint32(), MachineType::Uint32());
+  BUILD(r, WASM_I32_SHR(WASM_GET_LOCAL(0), WASM_GET_LOCAL(1)));
+
+  FOR_UINT32_INPUTS(i) {
+    FOR_UINT32_INPUTS(j) {
+      uint32_t expected = (*i) >> (*j & 0x1f);
+      CHECK_EQ(expected, r.Call(*i, *j));
+    }
+  }
+}
+
+TEST(Run_WasmI32Sar) {
+  WasmRunner<int32_t> r(MachineType::Int32(), MachineType::Int32());
+  BUILD(r, WASM_I32_SAR(WASM_GET_LOCAL(0), WASM_GET_LOCAL(1)));
+
+  FOR_INT32_INPUTS(i) {
+    FOR_INT32_INPUTS(j) {
+      int32_t expected = (*i) >> (*j & 0x1f);
+      CHECK_EQ(expected, r.Call(*i, *j));
+    }
+  }
+}
+
+TEST(Run_WasmI64Shl) {

[ahaas, 2016/03/30 12:00:08]

This test should be in test-run-wasm-64.cc

[titzer, 2016/03/30 12:10:26]

Done.

+  WasmRunner<uint64_t> r(MachineType::Uint64(), MachineType::Uint64());
+  BUILD(r, WASM_I64_SHL(WASM_GET_LOCAL(0), WASM_GET_LOCAL(1)));
+
+  FOR_UINT64_INPUTS(i) {
+    FOR_UINT64_INPUTS(j) {
+      uint64_t expected = (*i) << (*j & 0x3f);
+      CHECK_EQ(expected, r.Call(*i, *j));
+    }
+  }
+}
+
+TEST(Run_WasmI64Shr) {
+  WasmRunner<uint64_t> r(MachineType::Uint64(), MachineType::Uint64());

[ahaas, 2016/03/30 12:00:08]

same here.

[titzer, 2016/03/30 12:10:26]

Done.

+  BUILD(r, WASM_I64_SHR(WASM_GET_LOCAL(0), WASM_GET_LOCAL(1)));
+
+  FOR_UINT64_INPUTS(i) {
+    FOR_UINT64_INPUTS(j) {
+      uint64_t expected = (*i) >> (*j & 0x3f);
+      CHECK_EQ(expected, r.Call(*i, *j));
+    }
+  }
+}
+
+TEST(Run_WasmI64Sar) {

[ahaas, 2016/03/30 12:00:09]

same here.

[titzer, 2016/03/30 12:10:26]

Done.

+  WasmRunner<int64_t> r(MachineType::Int64(), MachineType::Int64());
+  BUILD(r, WASM_I64_SAR(WASM_GET_LOCAL(0), WASM_GET_LOCAL(1)));
+
+  FOR_INT64_INPUTS(i) {
+    FOR_INT64_INPUTS(j) {
+      int64_t expected = (*i) >> (*j & 0x3f);
+      CHECK_EQ(expected, r.Call(*i, *j));
+    }
+  }
+}
+
 TEST(Run_WASM_Int32DivS_trap) {
   WasmRunner<int32_t> r(MachineType::Int32(), MachineType::Int32());
   BUILD(r, WASM_I32_DIVS(WASM_GET_LOCAL(0), WASM_GET_LOCAL(1)));