[flang][HLFIR] Relax InlineElementals to support more than two users (#186916) This pr optimizes the lowering of MINLOC and MAXLOC when the MASK argument is a simple equality comparison (e.g., MASK = A == X). This patch introduces isEqualityMask to identify these patterns and inline the comparison directly into the reduction loop. This allows the SimplifyHLFIRIntrinsicscation pass to extract the invariant search target and bypasses the creation of a temporary logical mask array by inlining the equality comparison directly into the reduction loop. optimization removes the 'hlfir.apply' to the mask's hlfir.elemental, which gets eliminated in bufferize-hlfir pass. Simplifies the reduction state by removing the min/max value tracker, as the target value is already known. Implements a 'first-hit' locking mechanism. --------- Co-authored-by: anoop.kumar6@ibm.com <anoopk@b35lp63.lnxne.boe>
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