Contribution of PowerPC port.

src/assembler.cc

Index: src/assembler.cc
diff --git a/src/assembler.cc b/src/assembler.cc
index a98ff1e56a58bf94b0efd913d0cdb36f08a87e22..9a42bbaa67d1b2111f6e113fc59cad6823275603 100644
--- a/src/assembler.cc
+++ b/src/assembler.cc
@@ -64,6 +64,8 @@
 #include "src/arm64/assembler-arm64-inl.h"  // NOLINT
 #elif V8_TARGET_ARCH_ARM
 #include "src/arm/assembler-arm-inl.h"  // NOLINT
+#elif V8_TARGET_ARCH_PPC
+#include "src/ppc/assembler-ppc-inl.h"  // NOLINT
 #elif V8_TARGET_ARCH_MIPS
 #include "src/mips/assembler-mips-inl.h"  // NOLINT
 #elif V8_TARGET_ARCH_MIPS64
@@ -84,6 +86,8 @@
 #include "src/arm64/regexp-macro-assembler-arm64.h"  // NOLINT
 #elif V8_TARGET_ARCH_ARM
 #include "src/arm/regexp-macro-assembler-arm.h"  // NOLINT
+#elif V8_TARGET_ARCH_PPC
+#include "src/ppc/regexp-macro-assembler-ppc.h"  // NOLINT
 #elif V8_TARGET_ARCH_MIPS
 #include "src/mips/regexp-macro-assembler-mips.h"  // NOLINT
 #elif V8_TARGET_ARCH_MIPS64
@@ -985,12 +989,24 @@ ExternalReference::ExternalReference(Builtins::Name name, Isolate* isolate)
 
 ExternalReference::ExternalReference(Runtime::FunctionId id,
                                      Isolate* isolate)
+#if V8_TARGET_ARCH_PPC64

[danno, 2014/07/29 13:24:07]

Again, why the #ifdef? It seems like on most platforms, result_size will always
either 1, or if there are cases where there are already 2 results returned, then
BUILTIN_OBJECTPAIR_CALL is just an alias for BUILTIN_CALL on those platforms and
should be threaded through as such.

[andrew_low, 2014/07/30 13:27:04]

This is related to running the simulator version of the code 'natively' on
PowerPC. This is a useful feature, but I've removed for now as it cleans up the
common code.

On 2014/07/29 13:24:07, danno wrote:

+  : address_(Redirect(isolate, Runtime::FunctionForId(id)->entry,
+                      (Runtime::FunctionForId(id)->result_size == 2) ?
+                      BUILTIN_OBJECTPAIR_CALL : BUILTIN_CALL)) {}
+#else
   : address_(Redirect(isolate, Runtime::FunctionForId(id)->entry)) {}
+#endif
 
 
 ExternalReference::ExternalReference(const Runtime::Function* f,
                                      Isolate* isolate)
+#if V8_TARGET_ARCH_PPC64
+  : address_(Redirect(isolate, f->entry,
+                      ((f->result_size == 2) ?
+                       BUILTIN_OBJECTPAIR_CALL : BUILTIN_CALL))) {}
+#else
   : address_(Redirect(isolate, f->entry)) {}
+#endif
 
 
 ExternalReference ExternalReference::isolate_address(Isolate* isolate) {
@@ -1342,6 +1358,8 @@ ExternalReference ExternalReference::re_check_stack_guard_state(
   function = FUNCTION_ADDR(RegExpMacroAssemblerARM64::CheckStackGuardState);
 #elif V8_TARGET_ARCH_ARM
   function = FUNCTION_ADDR(RegExpMacroAssemblerARM::CheckStackGuardState);
+#elif V8_TARGET_ARCH_PPC
+  function = FUNCTION_ADDR(RegExpMacroAssemblerPPC::CheckStackGuardState);
 #elif V8_TARGET_ARCH_MIPS
   function = FUNCTION_ADDR(RegExpMacroAssemblerMIPS::CheckStackGuardState);
 #elif V8_TARGET_ARCH_MIPS64