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Unified Diff: src/ia32/macro-assembler-ia32.h

Issue 218025: Rename JumpToBuiltin to JumpToRuntime. Add comment to ResolveBuiltin. (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: '' Created 11 years, 3 months ago
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Index: src/ia32/macro-assembler-ia32.h
===================================================================
--- src/ia32/macro-assembler-ia32.h (revision 2967)
+++ src/ia32/macro-assembler-ia32.h (working copy)
@@ -254,14 +254,14 @@
void CallRuntime(Runtime::FunctionId id, int num_arguments);
// Tail call of a runtime routine (jump).
- // Like JumpToBuiltin, but also takes care of passing the number
+ // Like JumpToRuntime, but also takes care of passing the number
// of arguments.
void TailCallRuntime(const ExternalReference& ext,
int num_arguments,
int result_size);
- // Jump to the builtin routine.
- void JumpToBuiltin(const ExternalReference& ext);
+ // Jump to a runtime routine.
+ void JumpToRuntime(const ExternalReference& ext);
// ---------------------------------------------------------------------------
@@ -321,8 +321,16 @@
Label* done,
InvokeFlag flag);
- // Get the code for the given builtin. Returns if able to resolve
- // the function in the 'resolved' flag.
+ // Prepares for a call or jump to a builtin by doing two things:
+ // 1. Emits code that fetches the builtin's function object from the context
+ // at runtime, and puts it in the register rdi.
+ // 2. Fetches the builtin's code object, and returns it in a handle, at
+ // compile time, so that later code can emit instructions to jump or call
+ // the builtin directly. If the code object has not yet been created, it
+ // returns the builtin code object for IllegalFunction, and sets the
+ // output parameter "resolved" to false. Code that uses the return value
+ // should then add the address and the builtin name to the list of fixups
+ // called unresolved_, which is fixed up by the bootstrapper.
Handle<Code> ResolveBuiltin(Builtins::JavaScript id, bool* resolved);
// Activation support.
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