This switch is deprecated; use -fsanitize-recover= instead
fsanitize-undefined-trap-on-error
-Common Report Var(flag_sanitize_undefined_trap_on_error) Init(0)
+Common Driver Report Var(flag_sanitize_undefined_trap_on_error) Init(0)
Use trap instead of a library function for undefined behavior sanitization
fasynchronous-unwind-tables
Enable loop header copying on trees
ftree-coalesce-inlined-vars
-Common Ignore RejectNegative
-Does nothing. Preserved for backward compatibility.
+Common Report Var(flag_ssa_coalesce_vars,1) Init(2) RejectNegative Optimization
+Enable coalescing of copy-related user variables that are inlined
ftree-coalesce-vars
-Common Report Var(flag_tree_coalesce_vars) Optimization
-Enable SSA coalescing of user variables
+Common Report Var(flag_ssa_coalesce_vars,2) Optimization
+Enable coalescing of all copy-related user variables
ftree-copyrename
-Common Ignore
-Does nothing. Preserved for backward compatibility.
+Common Report Var(flag_tree_copyrename) Optimization
+Replace SSA temporaries with better names in copies
ftree-copy-prop
Common Report Var(flag_tree_copy_prop) Optimization