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PPC: [Interpreter] Add support for parameter variables.

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Port 5d975694e4

Original commit message:
    Adds support for parameters to the BytecodeArrayBuilder and BytecodeGenerator.
    Parameters are accessed as negative interpreter registers.

R=rmcilroy@chromium.org, jyan@ca.ibm.com, dstence@us.ibm.com, joransiu@ca.ibm.com
BUG=v8:4280
LOG=N

Review URL: https://codereview.chromium.org/1308373003

Cr-Commit-Position: refs/heads/master@{#30424}
This commit is contained in:
mbrandy 2015-08-27 10:12:42 -07:00 committed by Commit bot
parent 7ab389a437
commit ae781735b4
1 changed files with 5 additions and 2 deletions
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7
src/ppc/builtins-ppc.cc
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@ -991,8 +991,11 @@ void Builtins::Generate_InterpreterExitTrampoline(MacroAssembler* masm) {
// Leave the frame (also dropping the register file).
__ LeaveFrame(StackFrame::JAVA_SCRIPT);
// Drop receiver + arguments.
__ Drop(1); // TODO(rmcilroy): Get number of arguments from BytecodeArray.
// Drop receiver + arguments and return.
__ lwz(r0, FieldMemOperand(kInterpreterBytecodeArrayRegister,
BytecodeArray::kParameterSizeOffset));
__ add(sp, sp, r0);
__ blr();
}