9451572ade
Fixes #60058 https://github.com/llvm/llvm-project/issues/60058 It hit assert when legalizePatternResult on success of ExpandIfCondition which did nothing just return success when if condition is constant. Added RemoveConstantIfCondition to remove the if cond by getCanonicalizationPatterns. Also remove the check for constant if cond in ExpandIfCondition and change check ifCond to assert because only op with ifCond will need legalize in ConvertOpenACCToSCFPass Differential Revision: https://reviews.llvm.org/D142286