BELBACHIR Selim wrote: > Hi, > > I'm still working on a new gcc-4.5.2 backend for a private processor. > I encountered a strange behavior and I'm unable to find what causes this > behavior. > As an overview, it seems that dse2 pass removes insn where it should not > (optim -O2, -O3) > > Here is the code giving me headachs which returns 0 when it should return > 0x3F800000 (hex representation of 1.0f) : > > [...] > > I tried to search if there were pending bugs concerning dse2 on gcc 4.5.2 but > I did not find anything. > I don't know if I forgot a macro or what I have done wrong. I don't know if > the problem comes from dse2 pass or is a consequence of an error done before. > Can someone help me to find out why my lovely insn are removed ? > > > Regards, > > Selim
Is it PR49330? Johann
