https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61230
jgreenhalgh at gcc dot gnu.org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |ASSIGNED Last reconfirmed| |2014-05-19 Assignee|unassigned at gcc dot gnu.org |jgreenhalgh at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #1 from jgreenhalgh at gcc dot gnu.org --- https://gcc.gnu.org/ml/gcc-patches/2014-05/msg01260.html The testcase relies on a very particular code sequence being emitted, when other valid sequences exist. The scan-assembler portions of this testcase are clearly bogus. There is no reason a left shift by 1 should not be implemented by an add if the compiler so wishes.