[wasm] Use a C wrapper function to calculate F64Pow.

src/wasm/wasm-external-refs.cc

Index: src/wasm/wasm-external-refs.cc
diff --git a/src/wasm/wasm-external-refs.cc b/src/wasm/wasm-external-refs.cc
index e155f3c8ba64fb0f0c321e8f307bcf384533426b..52a96959b16cdb4c16cfc77aa4ba9a310161c0eb 100644
--- a/src/wasm/wasm-external-refs.cc
+++ b/src/wasm/wasm-external-refs.cc
@@ -10,6 +10,7 @@
 #include "include/v8config.h"
 
 #include "src/base/bits.h"
+#include "src/utils.h"
 #include "src/wasm/wasm-external-refs.h"
 
 namespace v8 {
@@ -194,6 +195,14 @@ uint32_t word64_popcnt_wrapper(uint64_t* input) {
   return static_cast<uint32_t>(base::bits::CountPopulation(*input));
 }
 
+void float64_pow_wrapper(double* param0, double* param1) {
+  double x = ReadDoubleValue(param0);
+  double y = ReadDoubleValue(param1);
+  if (std::isnan(y) || ((x == 1 || x == -1) && std::isinf(y))) {
+    WriteDoubleValue(param0, std::numeric_limits<double>::quiet_NaN());
+  }
+  WriteDoubleValue(param0, Pow(x, y));
+}
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8