Sergei Organov writes: > Hi, > > Using gcc compiled from gcc-4_0-branch, in an attempt to see which > particular optimization option makes my test case to be mis-optimized, I > try to replace -O1 (which toggles on the problem) with corresponding set > of -fxxx optimization options.
In general you can't do this. You can turn some optimization passes off, though. > How one finds out what optimization pass misbehaves? Look at the dumps. If you use the gcc option -da you'll get a full set of RTL dump files. Andrew.
