fix compiler crash in optimiser dispatch code
fix compiler crash in optimiser dispatch code

--HG--
extra : rebase_source : d0d280010b14401c44e70a279dc9066031ba7de7

larsmans/cython,da-woods/cython,ABcDexter/cython,andreasvc/cython,JelleZijlstra/cython,scoder/cython,larsmans/cython,acrispin/cython,roxyboy/cython,scoder/cython,JelleZijlstra/cython,acrispin/cython,c-blake/cython,fperez/cython,achernet/cython,cython/cython,larsmans/cython,andreasvc/cython,ChristopherHogan/cython,mcanthony/cython,mrGeen/cython,ABcDexter/cython,mcanthony/cython,acrispin/cython,encukou/cython,marscher/cython,mcanthony/cython,fperez/cython,dahebolangkuan/cython,madjar/cython,marscher/cython,slonik-az/cython,roxyboy/cython,da-woods/cython,hhsprings/cython,encukou/cython,fabianrost84/cython,andreasvc/cython,larsmans/cython,ChristopherHogan/cython,slonik-az/cython,madjar/cython,JelleZijlstra/cython,dahebolangkuan/cython,roxyboy/cython,encukou/cython,mrGeen/cython,encukou/cython,fabianrost84/cython,mcanthony/cython,da-woods/cython,mrGeen/cython,c-blake/cython,fperez/cython,hickford/cython,larsmans/cython,acrispin/cython,madjar/cython,ABcDexter/cython,c-blake/cython,dahebolangkuan/cython,fperez/cython,fperez/cython,achernet/cython,ChristopherHogan/cython,dahebolangkuan/cython,hhsprings/cython,cython/cython,c-blake/cython,fabianrost84/cython,mcanthony/cython,cython/cython,mrGeen/cython,hhsprings/cython,encukou/cython,cython/cython,ABcDexter/cython,da-woods/cython,hhsprings/cython,hickford/cython,fabianrost84/cython,slonik-az/cython,hickford/cython,mrGeen/cython,scoder/cython,marscher/cython,roxyboy/cython,hhsprings/cython,achernet/cython,achernet/cython,c-blake/cython,scoder/cython,marscher/cython,JelleZijlstra/cython,dahebolangkuan/cython,JelleZijlstra/cython,madjar/cython,madjar/cython,roxyboy/cython,slonik-az/cython,andreasvc/cython,slonik-az/cython,hickford/cython,acrispin/cython,ABcDexter/cython,andreasvc/cython,achernet/cython,fabianrost84/cython,marscher/cython,hickford/cython