4 Commits

Author	SHA1	Message	Date
Krzysztof Parzyszek	1aaf41af54	[Hexagon] Start using regmasks on calls ... Reapply r295371 with a fix for the Windows bot failures. llvm-svn: 295504	2017-02-17 22:14:51 +00:00
Rafael Espindola	6eab4044b9	Revert "[Hexagon] Start using regmasks on calls" ... This reverts commit r295371. It broke windows bots: http://bb.pgr.jp/builders/ninja-clang-i686-msc19-R/builds/11402/steps/test-llvm/logs/stdio llvm-svn: 295402	2017-02-17 02:08:58 +00:00
Krzysztof Parzyszek	fb9503c080	[Hexagon] Start using regmasks on calls ... All the cool targets are doing it... llvm-svn: 295371	2017-02-16 20:25:23 +00:00
Krzysztof Parzyszek	7793ddb043	[Hexagon] Optimize stack slot spills ... Replace spills to memory with spills to registers, if possible. This applies mostly to predicate registers (both scalar and vector), since they are very limited in number. A spill of a predicate register may happen even if there is a general-purpose register available. In cases like this the stack spill/reload may be eliminated completely. This optimization will consider all stack objects, regardless of where they came from and try to match the live range of the stack slot with a dead range of a register from an appropriate register class. llvm-svn: 260758	2016-02-12 22:53:35 +00:00