Sidharth Baveja c3dd7f4b12 [Loop Fusion] Integrate Loop Peeling into Loop Fusion (re-land after fixing ASAN build failures) ... This patch adds the ability to peel off iterations of the first loop in loop fusion. This can allow for both loops to have the same trip count, making it legal for them to be fused together. Here is a simple scenario peeling can be used in loop fusion: for (i = 0; i < 10; ++i) a[i] = a[i] + 3; for (j = 1; j < 10; ++j) b[j] = b[j] + 5; Here is we can make use of peeling, and then fuse the two loops together. We can peel off the 0th iteration of the loop i, and then combine loop i and j for i = 1 to 10. a[0] = a[0] +3; for (i = 1; i < 10; ++i) { a[i] = a[i] + 3; b[i] = b[i] + 5; } Currently peeling with loop fusion is only supported for loops with constant trip counts and a single exit point. Both unguarded and guarded loops are supported. Reviewed By: bmahjour (Bardia Mahjour), MaskRay (Fangrui Song) Differential Revision: https://reviews.llvm.org/D82927		2020-07-23 21:02:04 +00:00
..
cannot_fuse.ll	Revert "[llvm][test] Add COM: directives before colon-less non-CHECKs in comments. NFC"	2020-05-22 05:36:15 -06:00
diagnostics_analysis.ll
diagnostics_missed.ll
double_loop_nest_inner_guard.ll
four_loops.ll
guarded_peel.ll	[Loop Fusion] Integrate Loop Peeling into Loop Fusion (re-land after fixing ASAN build failures)	2020-07-23 21:02:04 +00:00
guarded_unsafeblock_peel.ll	[Loop Fusion] Integrate Loop Peeling into Loop Fusion (re-land after fixing ASAN build failures)	2020-07-23 21:02:04 +00:00
guarded.ll	[LoopFusion] Update second loop guard non loop successor phis incoming	2020-06-09 21:14:51 +00:00
inner_loops.ll
loop_nest.ll
nonadjacent_peel.ll	[Loop Fusion] Integrate Loop Peeling into Loop Fusion (re-land after fixing ASAN build failures)	2020-07-23 21:02:04 +00:00
peel.ll	[Loop Fusion] Integrate Loop Peeling into Loop Fusion (re-land after fixing ASAN build failures)	2020-07-23 21:02:04 +00:00
simple.ll
triple_loop_nest_inner_guard.ll