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* config/i386/i386.c (ix86_expand_adjust_ufix_to_sfix_si): Add XORP argument. Subtract 0x1p31 instead of 0x1p32. Use normal signalling comparison instead of non-signalling. Store into *XORP pseudo holding 0x80000000 integers if 0x1p31 has been subtracted and 0 otherwise. * config/i386/i386-protos.h (ix86_expand_adjust_ufix_to_sfix_si): Adjust prototype. * config/i386/sse.md (fixuns_trunc<mode><sseintvecmodelower>2): Enable already for TARGET_SSE2. Xor in vector initialized by ix86_expand_adjust_ufix_to_sfix_si at the end. (vec_pack_ufix_trunc_<mode>): Likewise. * gcc.dg/torture/vec-cvt-1.c: Enable flttointtestui test. From-SVN: r180933
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