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> Also, the definition of __builtin_ia32_vec_ext_v16qi in the mainline > should be enabled only for OPTION_MASK_ISA_SSE4_1, as current > definition is also enabled for SSE2: > > def_builtin (OPTION_MASK_ISA_SSE2, "__builtin_ia32_vec_ext_v16qi", > ftype, IX86_BUILTIN_VEC_EXT_V16QI); > > I propose that sse2-vec-5.c is removed from the testsuite in gcc-4_2 > branch and mainline.
__builtin_ia32_vec_ext_v16qi, like many other vector extra builtins, is supported by SSE2, but not with single instruction. I don't think it should be removed from mainline.
I hardly see the point of having builtin for non-existing insn, but if this is the case, we should add missing definition to gcc-4.2 (it is a three-liner patch).
I will remove sse2-vec-5.c from 4.2 since __builtin_ia32_vec_ext_v16qi isn't available there.
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