[llvm-testresults] evchen-ppc32 nightly tester results

[Dale Johannesen]

On May 5, 2010, at 3:29 PMPDT, Dale Johannesen wrote:

> Building stepanov_vector crashes thus:

SSAUpdater is crashing because of this block, which exists on entry to GVN:

bb.i.i61.us:                                      ; preds = %bb.i.i61.us
  %404 = invoke i32 (i8*, ...)* @"\01_printf$LDBL128"(i8* getelementptr inbounds ([21 x i8]* @.str1, i32 0, i32 0), i32 0)
          to label %bb.i.i61.us unwind label %lpad149 ; <i32> [#uses=0]

As the immediate dominator is 0 this loop crashes on the 2nd iteration:

450 static bool IsDefInDomFrontier(const SSAUpdater::BBInfo *Pred,
451                                const SSAUpdater::BBInfo *IDom) {
452   for (; Pred != IDom; Pred = Pred->IDom) {
453     if (Pred->DefBB == Pred)
454       return true;
455   }

What is the expectation here?  Should SSAUpdater handle this, or should it have been removed earlier?