On Mon, 2018-05-14 at 12:10 +0100, Jonathan Wakely wrote: > On 13 May 2018 at 22:18, Paul Smith wrote: > > This worked fine with GCC 6.x and 7.x, but in 8.1 I get an error > > from the assembler (not compiler): > > Please report a bug with a complete testcase. Unlike my other attempt, this one has stymied my efforts to reduce to a small test case. Part of the problem is that I don't understand what the assembler is trying to tell me so I can't figure out how to come up with a small example from scratch. I also am not familiar enough with this area of our code to be able to decide how to drop large sections of things. I have created a .cpp file which embeds all our headers (so it #includes only standard C and C++ headers). I stripped out a few small-ish things but most of the time if I try to make any changes to the function in question the issue goes away. This .cpp file is about 27,000 lines long (it includes some ICU stuff, etc. which is huge... plus a lot of our other headers... the actual source file and its header together is only 600 lines combined!) Because it's our proprietary code I can't publish it on the bug tracker. However, I probably can get permission to provide it privately to someone on the GCC team if they wanted to take a look at it. I could probably also provide the .s file (which does show the error when I assemble it) if that would be at all useful but it doesn't seem likely since the problem has already occurred at that point. The assembly file is less than 8000 lines :).
