bcm5719-llvm - Project Ortega BCM5719 LLVM

	Commit message (Collapse)	Author	Age	Files	Lines
*	[ModuloSchedule] Fix a bug in experimental expander	Thomas Raoux	2019-11-23	1	-1/+1
\| \| \| \| \| \| \| \| \|	Fix two problems that popped up after my last patch. One is that the stiching of prologue/epilogue can be wrong when reading a value from a previsou stage. Also changed how we duplicate phi instructions to avoid generating extra phi that we delete later. Differential Revision: https://reviews.llvm.org/D70213
*	[ModuloSchedule] Fix modulo expansion for data loop carried dependencies.	Thomas Raoux	2019-11-11	1	-0/+54
	The new experimental expansion has a problem when a value has a data dependency with an instruction from a previous stage. This is due to the way we peel out the kernel. To fix that I'm changing the way we peel out the kernel. We now peel the kernel NumberStage - 1 times. The code would be correct at this point if we didn't have to handle cases where the loop iteration is smaller than the number of stages. To handle this case we move instructions between different epilogues based on their stage and remap the PHI instructions correctly. Differential Revision: https://reviews.llvm.org/D69538