Greetings, Not sure who to contact but at the manual page: https://gcc.gnu.org/onlinedocs/gccint/Tree-SSA-passes.html#Tree-SSA-passes Enter static single assignment form
This pass rewrites the function such that it is in SSA form. After this pass, all|is_gimple_reg|variables will be referenced by|SSA_NAME|, and all occurrences of other variables will be annotated with|VDEFS|and|VUSES|; PHI nodes will have been inserted as necessary for each basic block. This pass is located intree-ssa.cand is described by|pass_build_ssa|.
The pass seems to be in tree-into-ssa.c these days. Someone should update that if possible, Nick
