a05cc70a6c
This fixes a premature optimization in the range intersection code which assumes earlier branches have to be taken, not taking into account that for symbolic ranges we cannot always compare endpoints. The fix is to instantiate the compare deemed redundant (which then fails as undecidable for the testcase). 2021-01-06 Richard Biener <rguenther@suse.de> PR tree-optimization/98513 * value-range.cc (intersect_ranges): Compare the upper bounds for the expected relation. * gcc.dg/tree-ssa/pr98513.c: New testcase. |
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