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indirect call in RTL dump files
- From: "sean yang" <seanatpurdue at hotmail dot com>
- To: gcc at gcc dot gnu dot org
- Date: Sat, 06 May 2006 17:06:32 +0000
- Subject: indirect call in RTL dump files
- Bcc:
http://gcc.fyxm.net/summit/2004/GCC%20Call%20Graph.pdf
For the RTL representation, there are two type of function call instructions
as I understand.
1) direct call---this type of calls are shown with something like
(call (mem:QI (symbol_ref:SI ("bar") [flags 0x3] <function_decl 0xb72bf8dc
bar>) [0 S1 A8])
And the corresponding source code is something like "bar();" in C.
2) indirect call (explained in 3.1 in the above paper)
Can someone help me explain this a bit? --what the corresponding code is in
C, and what causes it to happen? What does the RTL code look like?
Thanks,
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