2 Commits

Author	SHA1	Message	Date
Stanislav Mekhanoshin	d8c9374797	Fix invariant fdiv hoisting in LICM ... FDiv is replaced with multiplication by reciprocal and invariant reciprocal is hoisted out of the loop, while multiplication remains even if invariant. Switch checks for all invariant operands and only invariant denominator to fix the issue. Differential Revision: https://reviews.llvm.org/D48447 llvm-svn: 335411	2018-06-23 04:01:28 +00:00
Hal Finkel	b63ed91549	[LICM] Hoist fp division from the loops and replace by a reciprocal ... When allowed, we can hoist a division out of a loop in favor of a multiplication by the reciprocal. Fixes PR32157. Patch by vit9696! Differential Revision: https://reviews.llvm.org/D30819 llvm-svn: 299911	2017-04-11 02:22:54 +00:00