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From: Vincent Penquerc'h <Vin...@ar...> - 2003-08-01 09:16:20
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> valgrind: the `impossible' happened: > Unhandled REPE case This is a x86 prefix which Valgrind simply doesn't support. It means "loop next insn". Support for it should be added to Valgrind for this insn. This is not a bug, just something which was never needed until now. What you can try is to undefine __OPTIMIZE__ (IIRC, check the exact define in /usr/include/bits/mathinline.h IIRC) before including math.h, that could help if acosf has an asm body which is used when optimizing (as do things like sincos). acosf is kinda slow in the first place, so it might not have much impact do use the slow version. YMMV. -- Vincent Penquerc'h |