2 Commits

Author	SHA1	Message	Date
Qiu Chaofan	b922a36211	[PowerPC] Define SchedModel for Power8 ... PowerPC subtargets prior to Power9 use the 'legacy' itinerary way to provide scheduling information. This patch re-writes the tablegen file to define the scheduling information in the new SchedModel way, which can bring improvements to some benchmarks. Reviewed By: shchenz Differential Revision: https://reviews.llvm.org/D154488	2023-09-08 15:43:21 +08:00
Kai Luo	1ceaec3e81	[PowerPC][altivec] Optimize codegen of vec_promote ... According to https://www.ibm.com/docs/en/xl-c-and-cpp-linux/16.1.1?topic=functions-vec-promote, elements not specified by the input index argument are undefined. So that we don't need to set these elements to be zeros. Reviewed By: nemanjai, #powerpc Differential Revision: https://reviews.llvm.org/D158487	2023-08-24 02:10:13 +00:00