GCN: Workaround Julia's broken alloca handling #47
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This PR works around the fact that allocas in an AS other than 0 (AS 5 in the case of GCN) appears to break Julia's
llvm-propagate-addrspacespass. That pass attempts to perform a bitcast between two types in different addrspaces, which is apparently incorrect. I have a closed PR which was attempting to fix this, which I plan to reopen once I get it working properly, and have found solid justification for why it's needed.@maleadt I know this looks ugly, but I'd like to have some way to work around this pass until I've gotten the pass fixed in Julia. I plan to make this conditional on a
CompilerJob{GCNCompilerTarget}, unless you somehow want it for all backends.