Reviewers: Weiliang,
Message:
PTAL
Description:
X87: [interpreter] Add basic framework for bytecode handler code generation.
port 7877c4e0c77b5c2b97678406eab7e9ad6eba4a4d (r29814).
original commit message:
Adds basic support for generation of interpreter bytecode handler code
snippets. The InterpreterAssembler class exposes a set of low level,
interpreter specific operations which can be used to build a Turbofan
graph. The Interpreter class generates a bytecode handler snippet for
each bytecode by assembling operations using an InterpreterAssembler.
Currently only two simple bytecodes are supported: LoadLiteral0 and
Return.
BUG=
Please review this at https://codereview.chromium.org/1256783002/
Base URL: https://chromium.googlesource.com/v8/v8.git@master
Affected files (+4, -3 lines):
M src/compiler/x87/linkage-x87.cc
Index: src/compiler/x87/linkage-x87.cc
diff --git a/src/compiler/x87/linkage-x87.cc
b/src/compiler/x87/linkage-x87.cc
index
afe4365975dab18a9d601930b5e512d78815cddb..37bfd6d9e6300c4f26029a3a38ecd260b353062c
100644
--- a/src/compiler/x87/linkage-x87.cc
+++ b/src/compiler/x87/linkage-x87.cc
@@ -17,6 +17,8 @@ struct X87LinkageHelperTraits {
static Register ReturnValue2Reg() { return edx; }
static Register JSCallFunctionReg() { return edi; }
static Register ContextReg() { return esi; }
+ static Register InterpreterBytecodePointerReg() { return edi; }
+ static Register InterpreterDispatchTableReg() { return ebx; }
static Register RuntimeCallFunctionReg() { return ebx; }
static Register RuntimeCallArgCountReg() { return eax; }
static RegList CCalleeSaveRegisters() {
@@ -61,9 +63,8 @@ CallDescriptor* Linkage::GetSimplifiedCDescriptor(Zone*
zone,
}
-CallDescriptor* Linkage::GetInterpreterDispatchDescriptor(
- Zone* zone, const MachineSignature* sig) {
- return LH::GetInterpreterDispatchDescriptor(zone, sig);
+CallDescriptor* Linkage::GetInterpreterDispatchDescriptor(Zone* zone) {
+ return LH::GetInterpreterDispatchDescriptor(zone);
}
} // namespace compiler
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