Contribution of PowerPC port.

test/cctest/test-hashing.cc

Index: test/cctest/test-hashing.cc
diff --git a/test/cctest/test-hashing.cc b/test/cctest/test-hashing.cc
index 0e2c6676e2eafea5c63c2dfeefd0fdc94b5f2026..7eda01379387da20a16b553b5abcf7e6d4b8d7f5 100644
--- a/test/cctest/test-hashing.cc
+++ b/test/cctest/test-hashing.cc
@@ -129,6 +129,24 @@ void generate(MacroAssembler* masm, i::Vector<const uint8_t> string) {
   __ pop(kRootRegister);
   __ jr(ra);
   __ nop();
+#elif V8_TARGET_ARCH_PPC
+#if ABI_USES_FUNCTION_DESCRIPTORS
+  __ function_descriptor();
+#endif
+
+  __ push(kRootRegister);
+  __ InitializeRootRegister();
+
+  __ li(r3, Operand::Zero());
+  __ li(ip, Operand(string.at(0)));
+  StringHelper::GenerateHashInit(masm, r3, ip, r0);
+  for (int i = 1; i < string.length(); i++) {
+    __ li(ip, Operand(string.at(i)));
+    StringHelper::GenerateHashAddCharacter(masm, r3, ip, r0);
+  }
+  StringHelper::GenerateHashGetHash(masm, r3, r0);
+  __ pop(kRootRegister);
+  __ blr();
 #else
 #error Unsupported architecture.
 #endif
@@ -178,6 +196,16 @@ void generate(MacroAssembler* masm, uint32_t key) {
   __ pop(kRootRegister);
   __ jr(ra);
   __ nop();
+#elif V8_TARGET_ARCH_PPC
+#if ABI_USES_FUNCTION_DESCRIPTORS
+  __ function_descriptor();
+#endif
+  __ push(kRootRegister);
+  __ InitializeRootRegister();
+  __ li(r3, Operand(key));
+  __ GetNumberHash(r3, ip);
+  __ pop(kRootRegister);
+  __ blr();
 #else
 #error Unsupported architecture.
 #endif