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r242046 - in /trunk/gcc: ChangeLog dwarf2cfi.c


Author: segher
Date: Thu Nov 10 17:43:02 2016
New Revision: 242046

URL: https://gcc.gnu.org/viewcvs?rev=242046&root=gcc&view=rev
Log:
dwarf2cfi: Dump row differences before asserting

If maybe_record_trace_start fails because the CFI is inconsistent on two
paths into a block it currently just ICEs.  This changes it to also dump
the CFI on those two paths in the dump file; debugging it without that
information is hopeless.


	* dwarf2cfi.c (dump_cfi_row): Add forward declaration.
	(maybe_record_trace_start): If the CFI is different on the new and
	old paths, print out both to the dump file before ICEing.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/dwarf2cfi.c


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