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getisrealtailcall
2007 Aug 09
1
[LLVMdev] Tail call optimization thoughts
...attach a
TargetGlobalAddress or the like
-the size of the stack adjustment
the realtailcall would be a no op operation that makes sure
that epilogue is
lowered before it (looks like a call), remember that we have a
real tail call
(like setBytesToPopOnReturn() , a setIsRealTailCall()) in the
targetlowering())
*else emit regular function call with same calling conventions
3.)lower of the return:
*if we are dealing with a realtailcall (getIsRealTailCall)
look for REALTAILCALL use its operands to
emit a TC_RETURN node holding stacksize, tailcallee
th...