[llvm-commits] [PATCH] At beginning of SelectionDAGISel::LowerArguments, see if return values can be lowered to registers

[Dan Gohman]

Hello,

This looks good to me, though please use spaces instead of tabs for
indentation.

It would be cool if we could find a way to implement CanLowerReturn
without using target-specific code, since it doesn't have very much
target-specific logic in it, but I'm fine leaving this as it is
for now.

Dan

On Nov 5, 2009, at 9:51 AM, Kenneth Uildriks wrote:

> Right now, it simply asserts if the return values cannot be lowered.
> I'm working on code that will perform an sret-demotion on function
> definitions and function calls if the return values cannot be lowered
> to registers; this will allow arbitrary-sized struct returns to get
> through codegen without crashing.
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