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...e reduced the program down to a simpler test case. Here the intermediate functions have an "IE" node. The error occurs when trying to see if @spec_compress() does Mod/Ref @spec_fd1 (NoModRef reported). In contrast, ds-aa correctly reports ModRef on the callsite to @spec_putc() in @compressStream(). Kind regards, Hans. -------------- next part -------------- A non-text attachment was scrubbed... Name: testcase-dce.ll Type: application/octet-stream Size: 6431 bytes Desc: not available URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20091009/e218bac5/attachment.obj> -------...