; RUN: opt %loadPolly -S -polly-codegen < %s ; ; Excerpt from the test-suite's oggenc reduced using bugpoint. ; ; It features a SCEV value using %div44 for the inner loop (for.body.51 => ; for.cond.60.preheader) that is computed within the body of the outer loop ; (for.cond.30.preheader => for.cond.60.preheader). CodeGenerator would add a ; computation of the SCEV to before the scop that references %div44, which is ; not available then. ; ; CHECK: polly.split_new_and_old: ; CHECK-NEXT: %div23.neg.polly.copy = sdiv i64 0, -4 ; target triple = "x86_64-unknown-linux-gnu" define void @_vorbis_apply_window(ptr %d) { entry: %0 = load ptr, ptr undef, align 8 %div23.neg = sdiv i64 0, -4 %sub24 = add i64 0, %div23.neg br label %for.cond.30.preheader for.cond.30.preheader: ; preds = %for.body, %entry %sext = shl i64 %sub24, 32 %conv48.74 = ashr exact i64 %sext, 32 %cmp49.75 = icmp slt i64 %conv48.74, 0 br i1 %cmp49.75, label %for.body.51.lr.ph, label %for.cond.60.preheader for.body.51.lr.ph: ; preds = %for.cond.30.preheader %div44 = sdiv i64 0, 2 %sub45 = add nsw i64 %div44, 4294967295 %1 = trunc i64 %sub45 to i32 %2 = sext i32 %1 to i64 br label %for.body.51 for.cond.60.preheader: ; preds = %for.body.51, %for.cond.30.preheader ret void for.body.51: ; preds = %for.body.51, %for.body.51.lr.ph %indvars.iv86 = phi i64 [ %2, %for.body.51.lr.ph ], [ undef, %for.body.51 ] %arrayidx53 = getelementptr inbounds float, ptr %0, i64 %indvars.iv86 %3 = load float, ptr %arrayidx53, align 4 %mul56 = fmul float %3, undef store float %mul56, ptr %d, align 4 br i1 false, label %for.body.51, label %for.cond.60.preheader }