[LLVMdev] Possible GenericScheduler bug
tom at stellard.net
Tue Jan 21 06:35:18 PST 2014
On Tue, Jan 21, 2014 at 01:34:36PM +0000, Steve Montgomery wrote:
> If I compile for the MSP430 target with the -enable-misched I get an assertion failure in TargetLoweringBase::getRegClassFor(MVT). I've only noticed this since picking up LLVM 3.4 but it looks like the change has been there since rev 189,991. The issue is that the Converging / Generic Scheduler is assuming the i32 is a legal type and therefore has a corresponding general register class. This isn't the case for the MSP430, in which i32 isn't legal.
> On the assumption that enabling the generic scheduler is something that people might want to do for all targets, should I raise this as a bug?
Yes, please file a bug and also cc the code owner.
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