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...nction itself is missing a DISubprogram metadata attachment. > >> (lldb) p OldFunc->dump() >> >> ; Function Attrs: nounwind optsize >> define internal void @f_1.extracted_region(i32, i32*, %struct.t_c*, %struct.t_d*) #0 { >> if.end12.extracted_entry: >> %and14 = and i32 %0, 2, !dbg !89 >> %tobool15 = icmp eq i32 %and14, 0, !dbg !89 >> br i1 %tobool15, label %exit, label %if.then16, !dbg !185 >> >> if.then16: ; preds = %if.end12.extracted_entry >> %4 = load i32, i32* %1, align 4, !db...

...etadata attachment. >> >>> (lldb) p OldFunc->dump() >>> >>> ; Function Attrs: nounwind optsize >>> define internal void @f_1.extracted_region(i32, i32*, %struct.t_c*, >>> %struct.t_d*) #0 { >>> if.end12.extracted_entry: >>> %and14 = and i32 %0, 2, !dbg !89 >>> %tobool15 = icmp eq i32 %and14, 0, !dbg !89 br i1 %tobool15, label >>> %exit, label %if.then16, !dbg !185 >>> >>> if.then16: ; preds = %if.end12.extracted_entry >>> %4 = load i32, i3...

The if you are cloning into the same LLVM module the CU should not cloned. If don't mind sharing your code, I can try to help diagnose why the CU gets cloned... just send me a patch that applies to trunk and instructions. -- adrian > On Jun 16, 2017, at 1:54 PM, Sergei Larin <slarin at codeaurora.org> wrote: > > Sorry… It takes a pass that was not accepted for upstreaming….

...%or = or i32 %and3, 16 %conv4 = trunc i32 %or to i16 store i16 %conv4, i16* %incdec.ptr.1.i, align 2, !tbaa !5 %and7 = and i32 %conv, 32752 %cmp = icmp eq i32 %and7, 32752 br i1 %cmp, label %if.then11, label %if.end37 if.then11: ; preds = %entry %and14 = and i16 %0, 15 %cmp15 = icmp eq i16 %and14, 0 br i1 %cmp15, label %lor.lhs.false, label %if.then31 lor.lhs.false: ; preds = %if.then11 %arrayidx17 = getelementptr inbounds i16* %pe, i32 2 %2 = load i16* %arrayidx17, align 2, !tbaa !5 %cmp19 = icmp eq...