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Author SHA1 Message Date
Bjorn Pettersson b280ee1dd7 [test] Use -passes=instsimplify instead of -instsimplify in a number of tests. NFC 
Another step moving away from the deprecated syntax of specifying
pass pipeline in opt.

Differential Revision: https://reviews.llvm.org/D119080
 2022-02-07 14:26:58 +01:00
David Sherwood 8439415333 [IR] Let ConstantVector::getSplat use poison instead of undef 
This patch updates ConstantVector::getSplat to use poison instead
of undef when using insertelement/shufflevector to splat.

This follows on from D93793.

Differential Revision: https://reviews.llvm.org/D107751
 2021-08-10 08:27:43 +01:00
Christopher Tetreault 792f8e1114 [SVE] Take constant fold fast path for splatted vscale vectors 
This should be a perfectly reasonable operation for scalable vectors.
Currently, it only works for zeroinitializer values of
ScalableVectorType, but the fundamental operation is sound and it should
be possible to make it work for other splats

Reviewed By: david-arm

Differential Revision: https://reviews.llvm.org/D77442
 2020-11-17 12:45:31 -08:00