On Tue, Apr 18, 2017 at 12:49 PM, Bin Cheng <bin.ch...@arm.com> wrote: > Hi, > This patch supports compare iv_use for comparison whose both sides are IVs. > With this patch, optimal code is generated for PR53090. > Is it OK?
Ok. Richard. > Thanks, > bin > 2017-04-11 Bin Cheng <bin.ch...@arm.com> > > PR tree-optimization/53090 > * tree-ssa-loop-ivopts.c (enum comp_iv_rewrite): New enum value > COMP_IV_EXPR_2. > (extract_cond_operands): Detect condition with IV on both sides > and return COMP_IV_EXPR_2. > (find_interesting_uses_cond): Add iv_use for both IVs in condition. > (rewrite_use_compare): Simplify by removing call to function > extract_cond_operands.
