GCC modified for the FreeChainXenon project
95da266b86
Except for one case, get_vectype_for_scalar_type_and_size calculates what the vector mode should be and then calls build_vector_type, which recomputes the mode from scratch. This patch makes it use build_vector_type_for_mode instead. The exception mentioned above is when preferred_simd_mode returns an integer mode, which it does if no appropriate vector mode exists. The integer mode in question is usually word_mode, although epiphany can return a doubleword mode in some cases. There's no guarantee that this integer mode is appropriate, since for example the scalar type could be a float. The traditional behaviour is therefore to use the integer mode to determine a size only, and leave mode_for_vector to pick the TYPE_MODE. (Note that it can actually end up picking a vector mode if the target defines a disabled vector mode. We therefore still need to check TYPE_MODE after building the type.) 2019-11-14 Richard Sandiford <richard.sandiford@arm.com> gcc/ * tree-vect-stmts.c (get_vectype_for_scalar_type_and_size): If targetm.vectorize.preferred_simd_mode returns an integer mode, use mode_for_vector to decide what the vector type's mode should actually be. Use build_vector_type_for_mode instead of build_vector_type. From-SVN: r278234 |
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| contrib | ||
| fixincludes | ||
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| libgo | ||
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| libtool-ldflags | ||
| libtool.m4 | ||
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| MAINTAINERS | ||
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