4 Commits

Author	SHA1	Message	Date
Elena Demikhovsky	b25a8b4b1a	Reverted patch 273864 ... llvm-svn: 274115	2016-06-29 10:01:06 +00:00
Elena Demikhovsky	a0f36bf897	Fixed consecutive memory access detection in Loop Vectorizer. ... It did not handle correctly cases without GEP. The following loop wasn't vectorized: for (int i=0; i<len; i++) *to++ = *from++; I use getPtrStride() to find Stride for memory access and return 0 is the Stride is not 1 or -1. Re-commit rL273257 - revision: http://reviews.llvm.org/D20789 llvm-svn: 273864	2016-06-27 11:19:23 +00:00
Chad Rosier	e82e555425	Add newline to test. NFC. ... llvm-svn: 246653	2015-09-02 14:06:16 +00:00
James Molloy	fe6bb5c6e4	[LV] Never widen an induction variable. ... There's no need to widen canonical induction variables. It's just as efficient to create a *new*, wide, induction variable. Consider, if we widen an indvar, then we'll have to truncate it before its uses anyway (1 trunc). If we create a new indvar instead, we'll have to truncate that instead (1 trunc) [besides which IndVars should go and clean up our mess after us anyway on principle]. This lets us remove a ton of special-casing code. llvm-svn: 246631	2015-09-02 10:15:05 +00:00