On 09/15/2015 06:18 AM, Richard Biener wrote:
Of course this boils down to "uses" of a VAR_DECL using the shared tree node. On GIMPLE some stmt kinds have separate locations for each operand (PHI nodes), on GENERIC we'd have to invent a no-op expr tree code to wrap such uses to be able to give them distinct locations (can't use sth existing as frontends would need to ignore them in a different way than say NOP_EXPRs or NON_LVALUE_EXPRs).
Exactly. Jeff
