Michael Gottesman 30dcd21864 Update makeLibCall to return both the call and the chain associated with the libcall instead of just the call. This allows us to specify libcalls that return void. ... LowerCallTo returns a pair with the return value of the call as the first element and the chain associated with the return value as the second element. If we lower a call that has a void return value, LowerCallTo returns an SDValue with a NULL SDNode and the chain for the call. Thus makeLibCall by just returning the first value makes it impossible for you to set up the chain so that the call is not eliminated as dead code. I also updated all references to makeLibCall to reflect the new return type. llvm-svn: 188300		2013-08-13 17:54:56 +00:00
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llvm	Update makeLibCall to return both the call and the chain associated with the libcall instead of just the call. This allows us to specify libcalls that return void.	2013-08-13 17:54:56 +00:00
llvm-c	Revert r188188 and r188200.	2013-08-12 21:07:31 +00:00