[PATCH] Fix instcombine's folding of select into phi nodes for ConstantExpr

[Duncan P. N. Exon Smith]

On Dec 6, 2013, at 11:20 AM, Justin Bogner <mail at justinbogner.com> wrote:

> How tricky is it to come up with a test case that doesn't rely on us
> failing to constant fold the icmp here? This one seems a bit fragile.

Thanks for the suggestion.  The test in the updated patch uses extern_weak globals in the icmp, which should *not* be constant folded.

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