[turbofan] Implementation of Word32PairShl on arm.

test/cctest/wasm/test-run-wasm-64.cc

Index: test/cctest/wasm/test-run-wasm-64.cc
diff --git a/test/cctest/wasm/test-run-wasm-64.cc b/test/cctest/wasm/test-run-wasm-64.cc
index 86eef78c55ebedf1260132f8bcb279a9eecf1d86..bf9b765d4f1989773609149ae7740ee8741dc369 100644
--- a/test/cctest/wasm/test-run-wasm-64.cc
+++ b/test/cctest/wasm/test-run-wasm-64.cc
@@ -51,19 +51,29 @@ TEST(Run_WasmI64Xor) {
   }
 }
 // kExprI64Shl:
-#if !V8_TARGET_ARCH_ARM && !V8_TARGET_ARCH_MIPS && !V8_TARGET_ARCH_X87
+#if !V8_TARGET_ARCH_MIPS && !V8_TARGET_ARCH_X87
 TEST(Run_WasmI64Shl) {
   {
     WasmRunner<int64_t> r(MachineType::Int64(), MachineType::Int64());
     BUILD(r, WASM_I64_SHL(WASM_GET_LOCAL(0), WASM_GET_LOCAL(1)));
     FOR_UINT64_INPUTS(i) {
-      for (int64_t j = 0; j < 64; j++) {
+      for (int64_t j = 1; j < 64; j++) {
         CHECK_EQ(*i << j, r.Call(*i, j));
       }
     }
   }
   {
     WasmRunner<int64_t> r(MachineType::Int64());
+    BUILD(r, WASM_I64_SHL(WASM_GET_LOCAL(0), WASM_I64(0)));
+    FOR_UINT64_INPUTS(i) { CHECK_EQ(*i << 0, r.Call(*i)); }
+  }
+  {
+    WasmRunner<int64_t> r(MachineType::Int64());
+    BUILD(r, WASM_I64_SHL(WASM_GET_LOCAL(0), WASM_I64(32)));
+    FOR_UINT64_INPUTS(i) { CHECK_EQ(*i << 32, r.Call(*i)); }
+  }
+  {
+    WasmRunner<int64_t> r(MachineType::Int64());
     BUILD(r, WASM_I64_SHL(WASM_GET_LOCAL(0), WASM_I64(20)));
     FOR_UINT64_INPUTS(i) { CHECK_EQ(*i << 20, r.Call(*i)); }
   }