x86_32 OptoRuntime::generate_exception_blob() unnecessary second get_thread() call?
John.Rose at Sun.COM
Fri Jul 10 11:55:28 PDT 2009
On Jul 10, 2009, at 7:41 AM, Christian Thalinger wrote:
> While changing something in OptoRuntime::generate_exception_blob() in
> runtime_x86_32.cpp I noticed that there are two calls to get_thread()
> and the second call happens while the register from the first call
> holds the value.
There are three calls to get_thread(rcx). The first and second are
separated by a call to handle_exception_C, which presumably blows rcx.
I think you are right that the third get_thread duplicates the result
of the second.
And this comment appears to be false:
// rcx contains handler address
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