[Bug sanitizer/66343] "Error: .Lubsan_type3 already defined" with UBSan and precompiled headers

[simon.lindholm10 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66343

Simon Lindholm <simon.lindholm10 at gmail dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |simon.lindholm10 at gmail dot com

--- Comment #3 from Simon Lindholm <simon.lindholm10 at gmail dot com> ---
Seems to happen when both source and precompiled header files contain a
division:

$ echo "void div1(int a, int b) { a / b; }" >header.h
$ echo "void div2(int a, int b) { a / b; }" >src.cpp
$ g++ -fsanitize=undefined header.h
$ g++ -fsanitize=undefined -include header.h src.cpp
/tmp/ccoYhDz6.s: Assembler messages:
/tmp/ccoYhDz6.s:69: Error: symbol `.Lubsan_data0' is already defined

(reproduced on gcc 6.1.1)