David Sherwood 8fe44dff5f [CodeGen] In narrowExtractedVectorLoad bail out for scalable vectors ... In narrowExtractedVectorLoad there is an optimisation that tries to combine extract_subvector with a narrowing vector load. At the moment this produces warnings due to the incorrect calls to getVectorNumElements() for scalable vector types. I've got this working for scalable vectors too when the extract subvector index is a multiple of the minimum number of elements. I have added a new variant of the function: MachineFunction::getMachineMemOperand that copies an existing MachineMemOperand, but replaces the pointer info with a null version since we cannot currently represent scaled offsets. I've added a new test for this particular case in: CodeGen/AArch64/sve-extract-subvector.ll Differential Revision: https://reviews.llvm.org/D83950		2020-08-13 10:46:18 +01:00
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llvm	[CodeGen] In narrowExtractedVectorLoad bail out for scalable vectors	2020-08-13 10:46:18 +01:00
llvm-c	Recommit "[IPConstProp] Remove and move tests to SCCP."	2020-08-02 22:23:54 +01:00