4 Commits

Author	SHA1	Message	Date
Craig Topper	4252f7773a	[SelectionDAG][ARM][AArch64][Hexagon][RISCV][X86] Add SDNPCommutative to fma and fmad nodes in tablegen. Remove explicit commuted patterns from targets. ... X86 was already specially marking fma as commutable which allowed tablegen to autogenerate commuted patterns. This moves it to the target independent definition and fix up the targets to remove now unneeded patterns. Unfortunately, the tests change because the commuted version of the patterns are generating operands in a different than the explicit patterns. Differential Revision: https://reviews.llvm.org/D91842	2020-11-23 10:09:20 -08:00
David Green	fb8c9a339a	[ARM] Use isFMAFasterThanFMulAndFAdd for scalars as well as MVE vectors ... This adds extra scalar handling to isFMAFasterThanFMulAndFAdd, allowing the target independent code to handle more folds in more situations (for example if the fast math flags are present, but the global AllowFPOpFusion option isnt). It also splits apart the HasSlowFPVMLx into HasSlowFPVFMx, to allow VFMA and VMLA to be controlled separately if needed. Differential Revision: https://reviews.llvm.org/D72139	2020-01-05 11:24:04 +00:00
David Green	c15a56f61a	[ARM] Fill in FP16 FMA patterns ... This adds fp16 variants of all the fma patterns in the ARM backend. Differential Revision: https://reviews.llvm.org/D72138	2020-01-05 11:24:04 +00:00
David Green	5a25399221	[ARM] Add and update FMA tests. NFC	2020-01-05 11:24:04 +00:00