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authorRichard Sandiford <richard.sandiford@linaro.org>2018-01-03 21:43:02 +0000
committerRichard Sandiford <rsandifo@gcc.gnu.org>2018-01-03 21:43:02 +0000
commit5c0caeb37ff72cfd9153e164e9fd9eec7d56e969 (patch)
tree99f960801c55a722346016899054db7e08ba7b13 /gcc/mode-classes.def
parentcf098191e47535b89373dccb9a2d3cc4a4ebaef7 (diff)
Add support for MODE_VECTOR_BOOL
This patch adds a new mode class to represent vectors of booleans. GET_MODE_BITSIZE (m) / GET_MODE_NUNITS (m) determines the number of bits that are used to represent each boolean; this can be 1 for a fully-packed representation or greater than 1 for an unpacked representation. In the latter case, the value of bits other than the lowest is not significant. These are used by the SVE port to represent predicates. 2018-01-03 Richard Sandiford <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> gcc/ * mode-classes.def (MODE_VECTOR_BOOL): New mode class. * machmode.h (INTEGRAL_MODE_P, VECTOR_MODE_P): Return true for MODE_VECTOR_BOOL. * machmode.def (VECTOR_BOOL_MODE): Document. * genmodes.c (VECTOR_BOOL_MODE): New macro. (make_vector_bool_mode): New function. (complete_mode, emit_mode_wider, emit_mode_adjustments): Handle MODE_VECTOR_BOOL. * lto-streamer-in.c (lto_input_mode_table): Likewise. * rtx-vector-builder.c (rtx_vector_builder::find_cached_value): Likewise. * stor-layout.c (int_mode_for_mode): Likewise. * tree.c (build_vector_type_for_mode): Likewise. * varasm.c (output_constant_pool_2): Likewise. * emit-rtl.c (init_emit_once): Make sure that CONST1_RTX (BImode) and CONSTM1_RTX (BImode) are the same thing. Initialize const_tiny_rtx for MODE_VECTOR_BOOL. * expr.c (expand_expr_real_1): Use VECTOR_MODE_P instead of a list of mode class checks. * tree-vect-generic.c (expand_vector_operation): Use VECTOR_MODE_P instead of a list of mode class checks. (expand_vector_scalar_condition): Likewise. (type_for_widest_vector_mode): Handle BImode as an inner mode. gcc/c-family/ * c-common.c (c_common_type_for_mode): Handle MODE_VECTOR_BOOL. gcc/fortran/ * trans-types.c (gfc_type_for_mode): Handle MODE_VECTOR_BOOL. gcc/go/ * go-lang.c (go_langhook_type_for_mode): Handle MODE_VECTOR_BOOL. gcc/lto/ * lto-lang.c (lto_type_for_mode): Handle MODE_VECTOR_BOOL. Co-Authored-By: Alan Hayward <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com> From-SVN: r256202
Diffstat (limited to 'gcc/mode-classes.def')
-rw-r--r--gcc/mode-classes.def1
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/mode-classes.def b/gcc/mode-classes.def
index 3624f29120e..522e446c7ba 100644
--- a/gcc/mode-classes.def
+++ b/gcc/mode-classes.def
@@ -31,6 +31,7 @@ along with GCC; see the file COPYING3. If not see
DEF_MODE_CLASS (MODE_DECIMAL_FLOAT), /* decimal floating point */ \
DEF_MODE_CLASS (MODE_COMPLEX_INT), /* complex numbers */ \
DEF_MODE_CLASS (MODE_COMPLEX_FLOAT), \
+ DEF_MODE_CLASS (MODE_VECTOR_BOOL), /* vectors of single bits */ \
DEF_MODE_CLASS (MODE_VECTOR_INT), /* SIMD vectors */ \
DEF_MODE_CLASS (MODE_VECTOR_FRACT), /* SIMD vectors */ \
DEF_MODE_CLASS (MODE_VECTOR_UFRACT), /* SIMD vectors */ \