[llvm-commits] [PATCH] [MIPS] Avoid use of __builtin_unreachable() when compiling LLVM for MIPS.

Jovanovic, Petar petarj at mips.com
Tue Jul 31 17:14:17 PDT 2012


Hi All,

we have narrowed the issue with builtin_unreachable() and filed a new bug.

Here are more details for anyone interested in the issue:

https://dmz-portal.mips.com/bugz/show_bug.cgi?id=523

Petar
________________________________________
From: Jovanovic, Petar
Sent: Wednesday, July 25, 2012 7:59 PM
To: llvm-commits at cs.uiuc.edu; Duncan Sands
Subject: RE: [llvm-commits] [PATCH] [MIPS] Avoid use of __builtin_unreachable() when compiling LLVM for MIPS.

Hi Duncan,

> This is the bit that confuses me: I thought the problem had been resolved in gcc
> already.  Is that not the case?

The original issue (that was reproducible with the original small example) was
resolved in the meantime. I pasted the link to the original GCC bug only to show
everyone how the issue looks/looked like. However, LLVM seems to trigger a
different case and we still see issues that are gone when __builtin_unreachable()
is disabled. Both 4.5.X and 4.6.X based toolchains.

Regards,
Petar




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