diff options
Diffstat (limited to 'gdb')
-rw-r--r-- | gdb/ChangeLog | 21 | ||||
-rw-r--r-- | gdb/features/i386/64bit-avx512.c | 5 | ||||
-rw-r--r-- | gdb/features/i386/64bit-avx512.xml | 4 | ||||
-rw-r--r-- | gdb/features/i386/64bit-sse.c | 5 | ||||
-rw-r--r-- | gdb/features/i386/64bit-sse.xml | 2 | ||||
-rw-r--r-- | gdb/gdbarch.c | 45 | ||||
-rw-r--r-- | gdb/gdbarch.h | 8 | ||||
-rwxr-xr-x | gdb/gdbarch.sh | 4 | ||||
-rw-r--r-- | gdb/gdbtypes.c | 7 | ||||
-rw-r--r-- | gdb/gdbtypes.h | 3 | ||||
-rw-r--r-- | gdb/i386-tdep.c | 9 | ||||
-rw-r--r-- | gdb/target-descriptions.c | 5 | ||||
-rw-r--r-- | gdb/testsuite/ChangeLog | 7 | ||||
-rw-r--r-- | gdb/testsuite/gdb.arch/x86-avx512bf16.c | 164 | ||||
-rw-r--r-- | gdb/testsuite/gdb.arch/x86-avx512bf16.exp | 74 | ||||
-rw-r--r-- | gdb/testsuite/lib/gdb.exp | 51 |
16 files changed, 410 insertions, 4 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index b3e3d59..6b1563a 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,24 @@ +2020-09-11 Moritz Riesterer <moritz.riesterer@intel.com> + Felix Willgerodt <Felix.Willgerodt@intel.com> + + * gdbarch.sh: Added bfloat16 type. + * gdbarch.c: Regenerated. + * gdbarch.h: Regenerated. + * gdbtypes.c (floatformats_bfloat16): New struct. + (gdbtypes_post_init): Add builtin_bfloat16. + * gdbtypes.h (struct builtin_type) <builtin_bfloat16>: New member. + (floatformats_bfloat16): New struct. + * i386-tdep.c (i386_zmm_type): Add field "v32_bfloat16" + (i386_ymm_type): Add field "v16_bfloat16" + (i386_gdbarch_init): Add set_gdbarch_bfloat16_format. + * target-descriptions.c (make_gdb_type): Add case TDESC_TYPE_BFLOAT16. + * gdbsupport/tdesc.cc (tdesc_predefined_types): New member bfloat16. + * gdbsupport/tdesc.h (tdesc_type_kind): New member TDESC_TYPE_BFLOAT16. + * features/i386/64bit-avx512.xml: Add bfloat16 type. + * features/i386/64bit-avx512.c: Regenerated. + * features/i386/64bit-sse.xml: Add bfloat16 type. + * features/i386/64bit-sse.c: Regenerated. + 2020-09-11 Felix Willgerodt <felix.willgerodt@intel.com> * i386-tdep.c (i386_zmm_type): Fix field names. diff --git a/gdb/features/i386/64bit-avx512.c b/gdb/features/i386/64bit-avx512.c index d12234c..1bd49dc 100644 --- a/gdb/features/i386/64bit-avx512.c +++ b/gdb/features/i386/64bit-avx512.c @@ -10,6 +10,9 @@ create_feature_i386_64bit_avx512 (struct target_desc *result, long regnum) feature = tdesc_create_feature (result, "org.gnu.gdb.i386.avx512"); tdesc_type *element_type; + element_type = tdesc_named_type (feature, "bfloat16"); + tdesc_create_vector (feature, "v8bf16", element_type, 8); + element_type = tdesc_named_type (feature, "ieee_single"); tdesc_create_vector (feature, "v4f", element_type, 4); @@ -31,6 +34,8 @@ create_feature_i386_64bit_avx512 (struct target_desc *result, long regnum) tdesc_type_with_fields *type_with_fields; type_with_fields = tdesc_create_union (feature, "vec128"); tdesc_type *field_type; + field_type = tdesc_named_type (feature, "v8bf16"); + tdesc_add_field (type_with_fields, "v8_bfloat16", field_type); field_type = tdesc_named_type (feature, "v4f"); tdesc_add_field (type_with_fields, "v4_float", field_type); field_type = tdesc_named_type (feature, "v2d"); diff --git a/gdb/features/i386/64bit-avx512.xml b/gdb/features/i386/64bit-avx512.xml index 4f02136..3636121 100644 --- a/gdb/features/i386/64bit-avx512.xml +++ b/gdb/features/i386/64bit-avx512.xml @@ -7,13 +7,15 @@ <!DOCTYPE feature SYSTEM "gdb-target.dtd"> <feature name="org.gnu.gdb.i386.avx512"> -<vector id="v4f" type="ieee_single" count="4"/> + <vector id="v8bf16" type="bfloat16" count="8"/> + <vector id="v4f" type="ieee_single" count="4"/> <vector id="v2d" type="ieee_double" count="2"/> <vector id="v16i8" type="int8" count="16"/> <vector id="v8i16" type="int16" count="8"/> <vector id="v4i32" type="int32" count="4"/> <vector id="v2i64" type="int64" count="2"/> <union id="vec128"> + <field name="v8_bfloat16" type="v8bf16"/> <field name="v4_float" type="v4f"/> <field name="v2_double" type="v2d"/> <field name="v16_int8" type="v16i8"/> diff --git a/gdb/features/i386/64bit-sse.c b/gdb/features/i386/64bit-sse.c index 48b5aa0..645e314 100644 --- a/gdb/features/i386/64bit-sse.c +++ b/gdb/features/i386/64bit-sse.c @@ -10,6 +10,9 @@ create_feature_i386_64bit_sse (struct target_desc *result, long regnum) feature = tdesc_create_feature (result, "org.gnu.gdb.i386.sse"); tdesc_type *element_type; + element_type = tdesc_named_type (feature, "bfloat16"); + tdesc_create_vector (feature, "v8bf16", element_type, 8); + element_type = tdesc_named_type (feature, "ieee_single"); tdesc_create_vector (feature, "v4f", element_type, 4); @@ -31,6 +34,8 @@ create_feature_i386_64bit_sse (struct target_desc *result, long regnum) tdesc_type_with_fields *type_with_fields; type_with_fields = tdesc_create_union (feature, "vec128"); tdesc_type *field_type; + field_type = tdesc_named_type (feature, "v8bf16"); + tdesc_add_field (type_with_fields, "v8_bfloat16", field_type); field_type = tdesc_named_type (feature, "v4f"); tdesc_add_field (type_with_fields, "v4_float", field_type); field_type = tdesc_named_type (feature, "v2d"); diff --git a/gdb/features/i386/64bit-sse.xml b/gdb/features/i386/64bit-sse.xml index 4ec1e7c..e3dec54 100644 --- a/gdb/features/i386/64bit-sse.xml +++ b/gdb/features/i386/64bit-sse.xml @@ -7,6 +7,7 @@ <!DOCTYPE feature SYSTEM "gdb-target.dtd"> <feature name="org.gnu.gdb.i386.sse"> + <vector id="v8bf16" type="bfloat16" count="8"/> <vector id="v4f" type="ieee_single" count="4"/> <vector id="v2d" type="ieee_double" count="2"/> <vector id="v16i8" type="int8" count="16"/> @@ -14,6 +15,7 @@ <vector id="v4i32" type="int32" count="4"/> <vector id="v2i64" type="int64" count="2"/> <union id="vec128"> + <field name="v8_bfloat16" type="v8bf16"/> <field name="v4_float" type="v4f"/> <field name="v2_double" type="v2d"/> <field name="v16_int8" type="v16i8"/> diff --git a/gdb/gdbarch.c b/gdb/gdbarch.c index f8fe03c..062c86b 100644 --- a/gdb/gdbarch.c +++ b/gdb/gdbarch.c @@ -166,6 +166,8 @@ struct gdbarch int int_bit; int long_bit; int long_long_bit; + int bfloat16_bit; + const struct floatformat ** bfloat16_format; int half_bit; const struct floatformat ** half_format; int float_bit; @@ -383,6 +385,7 @@ gdbarch_alloc (const struct gdbarch_info *info, gdbarch->int_bit = 4*TARGET_CHAR_BIT; gdbarch->long_bit = 4*TARGET_CHAR_BIT; gdbarch->long_long_bit = 2*gdbarch->long_bit; + gdbarch->bfloat16_bit = 2*TARGET_CHAR_BIT; gdbarch->half_bit = 2*TARGET_CHAR_BIT; gdbarch->float_bit = 4*TARGET_CHAR_BIT; gdbarch->double_bit = 8*TARGET_CHAR_BIT; @@ -523,6 +526,9 @@ verify_gdbarch (struct gdbarch *gdbarch) /* Skip verify of int_bit, invalid_p == 0 */ /* Skip verify of long_bit, invalid_p == 0 */ /* Skip verify of long_long_bit, invalid_p == 0 */ + /* Skip verify of bfloat16_bit, invalid_p == 0 */ + if (gdbarch->bfloat16_format == 0) + gdbarch->bfloat16_format = floatformats_bfloat16; /* Skip verify of half_bit, invalid_p == 0 */ if (gdbarch->half_format == 0) gdbarch->half_format = floatformats_ieee_half; @@ -808,6 +814,12 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file) "gdbarch_dump: bfd_arch_info = %s\n", gdbarch_bfd_arch_info (gdbarch)->printable_name); fprintf_unfiltered (file, + "gdbarch_dump: bfloat16_bit = %s\n", + plongest (gdbarch->bfloat16_bit)); + fprintf_unfiltered (file, + "gdbarch_dump: bfloat16_format = %s\n", + pformat (gdbarch->bfloat16_format)); + fprintf_unfiltered (file, "gdbarch_dump: breakpoint_from_pc = <%s>\n", host_address_to_string (gdbarch->breakpoint_from_pc)); fprintf_unfiltered (file, @@ -1621,6 +1633,39 @@ set_gdbarch_long_long_bit (struct gdbarch *gdbarch, } int +gdbarch_bfloat16_bit (struct gdbarch *gdbarch) +{ + gdb_assert (gdbarch != NULL); + /* Skip verify of bfloat16_bit, invalid_p == 0 */ + if (gdbarch_debug >= 2) + fprintf_unfiltered (gdb_stdlog, "gdbarch_bfloat16_bit called\n"); + return gdbarch->bfloat16_bit; +} + +void +set_gdbarch_bfloat16_bit (struct gdbarch *gdbarch, + int bfloat16_bit) +{ + gdbarch->bfloat16_bit = bfloat16_bit; +} + +const struct floatformat ** +gdbarch_bfloat16_format (struct gdbarch *gdbarch) +{ + gdb_assert (gdbarch != NULL); + if (gdbarch_debug >= 2) + fprintf_unfiltered (gdb_stdlog, "gdbarch_bfloat16_format called\n"); + return gdbarch->bfloat16_format; +} + +void +set_gdbarch_bfloat16_format (struct gdbarch *gdbarch, + const struct floatformat ** bfloat16_format) +{ + gdbarch->bfloat16_format = bfloat16_format; +} + +int gdbarch_half_bit (struct gdbarch *gdbarch) { gdb_assert (gdbarch != NULL); diff --git a/gdb/gdbarch.h b/gdb/gdbarch.h index 7a3060e..87e55fa 100644 --- a/gdb/gdbarch.h +++ b/gdb/gdbarch.h @@ -158,12 +158,18 @@ extern void set_gdbarch_long_bit (struct gdbarch *gdbarch, int long_bit); extern int gdbarch_long_long_bit (struct gdbarch *gdbarch); extern void set_gdbarch_long_long_bit (struct gdbarch *gdbarch, int long_long_bit); -/* The ABI default bit-size and format for "half", "float", "double", and +/* The ABI default bit-size and format for "bfloat16", "half", "float", "double", and "long double". These bit/format pairs should eventually be combined into a single object. For the moment, just initialize them as a pair. Each format describes both the big and little endian layouts (if useful). */ +extern int gdbarch_bfloat16_bit (struct gdbarch *gdbarch); +extern void set_gdbarch_bfloat16_bit (struct gdbarch *gdbarch, int bfloat16_bit); + +extern const struct floatformat ** gdbarch_bfloat16_format (struct gdbarch *gdbarch); +extern void set_gdbarch_bfloat16_format (struct gdbarch *gdbarch, const struct floatformat ** bfloat16_format); + extern int gdbarch_half_bit (struct gdbarch *gdbarch); extern void set_gdbarch_half_bit (struct gdbarch *gdbarch, int half_bit); diff --git a/gdb/gdbarch.sh b/gdb/gdbarch.sh index 6d3c5c8..8d22160 100755 --- a/gdb/gdbarch.sh +++ b/gdb/gdbarch.sh @@ -325,12 +325,14 @@ v;int;long_bit;;;8 * sizeof (long);4*TARGET_CHAR_BIT;;0 # machine. v;int;long_long_bit;;;8 * sizeof (LONGEST);2*gdbarch->long_bit;;0 -# The ABI default bit-size and format for "half", "float", "double", and +# The ABI default bit-size and format for "bfloat16", "half", "float", "double", and # "long double". These bit/format pairs should eventually be combined # into a single object. For the moment, just initialize them as a pair. # Each format describes both the big and little endian layouts (if # useful). +v;int;bfloat16_bit;;;16;2*TARGET_CHAR_BIT;;0 +v;const struct floatformat **;bfloat16_format;;;;;floatformats_bfloat16;;pformat (gdbarch->bfloat16_format) v;int;half_bit;;;16;2*TARGET_CHAR_BIT;;0 v;const struct floatformat **;half_format;;;;;floatformats_ieee_half;;pformat (gdbarch->half_format) v;int;float_bit;;;8 * sizeof (float);4*TARGET_CHAR_BIT;;0 diff --git a/gdb/gdbtypes.c b/gdb/gdbtypes.c index ab44ec3..b7c8ec8 100644 --- a/gdb/gdbtypes.c +++ b/gdb/gdbtypes.c @@ -115,6 +115,10 @@ const struct floatformat *floatformats_ibm_long_double[BFD_ENDIAN_UNKNOWN] = { &floatformat_ibm_long_double_big, &floatformat_ibm_long_double_little }; +const struct floatformat *floatformats_bfloat16[BFD_ENDIAN_UNKNOWN] = { + &floatformat_bfloat16_big, + &floatformat_bfloat16_little +}; /* Should opaque types be resolved? */ @@ -5760,6 +5764,9 @@ gdbtypes_post_init (struct gdbarch *gdbarch) builtin_type->builtin_float = arch_float_type (gdbarch, gdbarch_float_bit (gdbarch), "float", gdbarch_float_format (gdbarch)); + builtin_type->builtin_bfloat16 + = arch_float_type (gdbarch, gdbarch_bfloat16_bit (gdbarch), + "bfloat16", gdbarch_bfloat16_format (gdbarch)); builtin_type->builtin_double = arch_float_type (gdbarch, gdbarch_double_bit (gdbarch), "double", gdbarch_double_format (gdbarch)); diff --git a/gdb/gdbtypes.h b/gdb/gdbtypes.h index b02f667..9c2059d 100644 --- a/gdb/gdbtypes.h +++ b/gdb/gdbtypes.h @@ -1847,6 +1847,7 @@ struct builtin_type struct type *builtin_unsigned_short; struct type *builtin_unsigned_int; struct type *builtin_unsigned_long; + struct type *builtin_bfloat16; struct type *builtin_half; struct type *builtin_float; struct type *builtin_double; @@ -1981,7 +1982,7 @@ extern const struct floatformat *floatformats_ia64_quad[BFD_ENDIAN_UNKNOWN]; extern const struct floatformat *floatformats_vax_f[BFD_ENDIAN_UNKNOWN]; extern const struct floatformat *floatformats_vax_d[BFD_ENDIAN_UNKNOWN]; extern const struct floatformat *floatformats_ibm_long_double[BFD_ENDIAN_UNKNOWN]; - +extern const struct floatformat *floatformats_bfloat16[BFD_ENDIAN_UNKNOWN]; /* Allocate space for storing data associated with a particular type. We ensure that the space is allocated using the same diff --git a/gdb/i386-tdep.c b/gdb/i386-tdep.c index 322d2a4..1b7971c 100644 --- a/gdb/i386-tdep.c +++ b/gdb/i386-tdep.c @@ -3112,6 +3112,7 @@ i386_zmm_type (struct gdbarch *gdbarch) int8_t v64_int8[64]; double v8_double[8]; float v16_float[16]; + bfloat16_t v32_bfloat16[32]; }; #endif @@ -3119,6 +3120,8 @@ i386_zmm_type (struct gdbarch *gdbarch) t = arch_composite_type (gdbarch, "__gdb_builtin_type_vec512i", TYPE_CODE_UNION); + append_composite_type_field (t, "v32_bfloat16", + init_vector_type (bt->builtin_bfloat16, 32)); append_composite_type_field (t, "v16_float", init_vector_type (bt->builtin_float, 16)); append_composite_type_field (t, "v8_double", @@ -3165,6 +3168,7 @@ i386_ymm_type (struct gdbarch *gdbarch) int8_t v32_int8[32]; double v4_double[4]; float v8_float[8]; + bfloat16_t v16_bfloat16[16]; }; #endif @@ -3172,6 +3176,8 @@ i386_ymm_type (struct gdbarch *gdbarch) t = arch_composite_type (gdbarch, "__gdb_builtin_type_vec256i", TYPE_CODE_UNION); + append_composite_type_field (t, "v16_bfloat16", + init_vector_type (bt->builtin_bfloat16, 16)); append_composite_type_field (t, "v8_float", init_vector_type (bt->builtin_float, 8)); append_composite_type_field (t, "v4_double", @@ -8487,6 +8493,9 @@ i386_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) alignment. */ set_gdbarch_long_double_bit (gdbarch, 96); + /* Support of bfloat16 format. */ + set_gdbarch_bfloat16_format (gdbarch, floatformats_bfloat16); + /* Support for floating-point data type variants. */ set_gdbarch_floatformat_for_type (gdbarch, i386_floatformat_for_type); diff --git a/gdb/target-descriptions.c b/gdb/target-descriptions.c index 20d624c..6778b93 100644 --- a/gdb/target-descriptions.c +++ b/gdb/target-descriptions.c @@ -141,6 +141,11 @@ make_gdb_type (struct gdbarch *gdbarch, struct tdesc_type *ttype) m_type = arch_float_type (m_gdbarch, -1, "builtin_type_i387_ext", floatformats_i387_ext); return; + + case TDESC_TYPE_BFLOAT16: + m_type = arch_float_type (m_gdbarch, -1, "builtin_type_bfloat16", + floatformats_bfloat16); + return; } internal_error (__FILE__, __LINE__, diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog index 6b2055d..9b150b6 100644 --- a/gdb/testsuite/ChangeLog +++ b/gdb/testsuite/ChangeLog @@ -1,3 +1,10 @@ +2020-09-11 Moritz Riesterer <moritz.riesterer@intel.com> + Felix Willgerodt <Felix.Willgerodt@intel.com> + + * x86-avx512bf16.c: New file. + * x86-avx512bf16.exp: Likewise. + * lib/gdb.exp (skip_avx512bf16_tests): New function. + 2020-09-11 Tom de Vries <tdevries@suse.de> PR exp/26602 diff --git a/gdb/testsuite/gdb.arch/x86-avx512bf16.c b/gdb/testsuite/gdb.arch/x86-avx512bf16.c new file mode 100644 index 0000000..615cd12 --- /dev/null +++ b/gdb/testsuite/gdb.arch/x86-avx512bf16.c @@ -0,0 +1,164 @@ +/* Test program for bfloat16 of AVX 512 registers. + + Copyright 2020 Free Software Foundation, Inc. + + This file is part of GDB. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. */ + +typedef struct +{ + float f[4]; +} v4sd_t; + +typedef struct +{ + float f[8]; +} v8sd_t; + +typedef struct +{ + float f[16]; +} v16sd_t; + +v4sd_t xmm_data[] = +{ + { { 0.0, 0.125, 0.25, 0.375 } }, + { { 0.5, 0.625, 0.75, 0.875 } }, + { { 1.0, 1.125, 1.25, 1.375 } }, + { { 1.5, 1.625, 1.75, 1.875 } }, + { { 2.0, 2.125, 2.25, 2.375 } }, + { { 2.5, 2.625, 2.75, 2.875 } }, + { { 3.0, 3.125, 3.25, 3.375 } }, + { { 3.5, 3.625, 3.75, 3.875 } }, +}; + +v8sd_t ymm_data[] = +{ + { { 8.0, 8.25, 8.5, 8.75, 9.0, 9.25, 9.5, 9.75 } }, + { { 10.0, 10.25, 10.5, 10.75, 11.0, 11.25, 11.5, 11.75 } }, + { { 12.0, 12.25, 12.5, 12.75, 13.0, 13.25, 13.5, 13.75 } }, + { { 14.0, 14.25, 14.5, 14.75, 15.0, 15.25, 15.5, 15.75 } }, + { { 16.0, 16.25, 16.5, 16.75, 17.0, 17.25, 17.5, 17.75 } }, + { { 18.0, 18.25, 18.5, 18.75, 19.0, 19.25, 19.5, 19.75 } }, + { { 20.0, 20.25, 20.5, 20.75, 21.0, 21.25, 21.5, 21.75 } }, + { { 22.0, 22.25, 22.5, 22.75, 23.0, 23.25, 23.5, 23.75 } }, +}; + +v16sd_t zmm_data[] = +{ + { { 20.0, 20.5, 21.0, 21.5, 22.0, 22.5, 23.0, 23.5, 24.0, 24.5, + 25.0, 25.5, 26.0, 26.5, 27.0, 27.5 } }, + { { 28.0, 28.5, 29.0, 29.5, 30.0, 30.5, 31.0, 31.5, 32.0, 32.5, + 33.0, 33.5, 34.0, 34.5, 35.0, 35.5 } }, + { { 36.0, 36.5, 37.0, 37.5, 38.0, 38.5, 39.0, 39.5, 40.0, 40.5, + 41.0, 41.5, 42.0, 42.5, 43.0, 43.5 } }, + { { 44.0, 44.5, 45.0, 45.5, 46.0, 46.5, 47.0, 47.5, 48.0, 48.5, + 49.0, 49.5, 50.0, 50.5, 51.0, 51.5 } }, + { { 52.0, 52.5, 53.0, 53.5, 54.0, 54.5, 55.0, 55.5, 56.0, 56.5, + 57.0, 57.5, 58.0, 58.5, 59.0, 59.5 } }, + { { 60.0, 60.5, 61.0, 61.5, 62.0, 62.5, 63.0, 63.5, 64.0, 64.5, + 65.0, 65.5, 66.0, 66.5, 67.0, 67.5 } }, + { { 68.0, 68.5, 69.0, 69.5, 70.0, 70.5, 71.0, 71.5, 72.0, 72.5, + 73.0, 73.5, 74.0, 74.5, 75.0, 75.5 } }, + { { 76.0, 76.5, 77.0, 77.5, 78.0, 78.5, 79.0, 79.5, 80.0, 80.5, + 81.0, 81.5, 82.0, 82.5, 83.0, 83.5 } }, +}; + +void +move_data_to_xmm_reg (void) +{ + asm ("vmovups 0(%0), %%xmm0 \n\t" + "vmovups 16(%0), %%xmm1 \n\t" + "vmovups 32(%0), %%xmm2 \n\t" + "vmovups 48(%0), %%xmm3 \n\t" + "vmovups 64(%0), %%xmm4 \n\t" + "vmovups 80(%0), %%xmm5 \n\t" + "vmovups 96(%0), %%xmm6 \n\t" + "vmovups 112(%0), %%xmm7 \n\t" + : /* no output operands */ + : "r" (xmm_data)); +} + +void +move_data_to_ymm_reg (void) +{ + asm ("vmovups 0(%0), %%ymm0 \n\t" + "vmovups 32(%0), %%ymm1 \n\t" + "vmovups 64(%0), %%ymm2 \n\t" + "vmovups 96(%0), %%ymm3 \n\t" + "vmovups 128(%0), %%ymm4 \n\t" + "vmovups 160(%0), %%ymm5 \n\t" + "vmovups 192(%0), %%ymm6 \n\t" + "vmovups 224(%0), %%ymm7 \n\t" + : /* no output operands */ + : "r" (ymm_data)); +} + +void +move_data_to_zmm_reg (void) +{ + asm ("vmovups 0(%0), %%zmm0 \n\t" + "vmovups 64(%0), %%zmm1 \n\t" + "vmovups 128(%0), %%zmm2 \n\t" + "vmovups 192(%0), %%zmm3 \n\t" + "vmovups 256(%0), %%zmm4 \n\t" + "vmovups 320(%0), %%zmm5 \n\t" + "vmovups 384(%0), %%zmm6 \n\t" + "vmovups 448(%0), %%zmm7 \n\t" + : /* no output operands */ + : "r" (zmm_data)); +} + +void +convert_xmm_from_float_to_bfloat16 (void) +{ + asm("vcvtne2ps2bf16 %xmm0, %xmm1, %xmm0"); + asm("vcvtne2ps2bf16 %xmm6, %xmm7, %xmm6"); +} + +void +convert_ymm_from_float_to_bfloat16 (void) +{ + asm("vcvtne2ps2bf16 %ymm0, %ymm1, %ymm0"); + asm("vcvtne2ps2bf16 %ymm6, %ymm7, %ymm6"); +} + +void +convert_zmm_from_float_to_bfloat16 (void) +{ + asm("vcvtne2ps2bf16 %zmm0, %zmm1, %zmm0"); + asm("vcvtne2ps2bf16 %zmm6, %zmm7, %zmm6"); +} + +int +main (int argc, char **argv) +{ + /* Move initial values from array to registers and read from XMM regs. */ + move_data_to_xmm_reg (); + convert_xmm_from_float_to_bfloat16 (); + asm ("nop"); /* first breakpoint here */ + + /* Move initial values from array to registers and read from YMM regs. */ + move_data_to_ymm_reg (); + convert_ymm_from_float_to_bfloat16 (); + asm ("nop"); /* second breakpoint here */ + + /* Move initial values from array to registers and read from ZMM regs. */ + move_data_to_zmm_reg (); + convert_zmm_from_float_to_bfloat16 (); + asm ("nop"); /* third breakpoint here */ + + return 0; +} diff --git a/gdb/testsuite/gdb.arch/x86-avx512bf16.exp b/gdb/testsuite/gdb.arch/x86-avx512bf16.exp new file mode 100644 index 0000000..5f90d8a --- /dev/null +++ b/gdb/testsuite/gdb.arch/x86-avx512bf16.exp @@ -0,0 +1,74 @@ +# Copyright 2020 Free Software Foundation, Inc. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. + +# Please email any bugs, comments, and/or additions to this file to: +# bug-gdb@gnu.org + +# Test bfloat16 support in AVX512 registers + +if { [skip_avx512bf16_tests] } { + unsupported "target does not support AVX512BF16" + return -1 +} + +standard_testfile + +if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile}] } { + return -1 +} + +if { ![runto_main] } { + unsupported "could not run to main" + return -1 +} + +# Test xmm +set line1 [gdb_get_line_number "first breakpoint here"] +gdb_breakpoint $line1 +gdb_continue_to_breakpoint "line1" ".*$srcfile:$line1.*" + +gdb_test "print \$xmm0.v8_bfloat16" \ + "= \\{0, 0.125, 0.25, 0.375, 0.5, 0.625, 0.75, 0.875\\}" + +gdb_test "print \$xmm6.v8_bfloat16" \ + "= \\{3, 3.125, 3.25, 3.375, 3.5, 3.625, 3.75, 3.875\\}" + +# Test ymm +set line2 [gdb_get_line_number "second breakpoint here"] +gdb_breakpoint $line2 +gdb_continue_to_breakpoint "line2" ".*$srcfile:$line2.*" + +gdb_test "print \$ymm0.v16_bfloat16\[1\]" "= 8.25" +gdb_test "print \$ymm6.v16_bfloat16\[1\]" "= 20.25" + +# Test zmm +set line3 [gdb_get_line_number "third breakpoint here"] +gdb_breakpoint $line3 +gdb_continue_to_breakpoint "line3" ".*$srcfile:$line3.*" + +gdb_test "print \$zmm0.v32_bfloat16\[1\]" "= 20.5" +gdb_test "print \$zmm6.v32_bfloat16\[1\]" "= 68.5" + +# Test setting of bfloat values +gdb_test_no_output "set var \$xmm0.v8_bfloat16\[0\] = 32.25" \ + "set %xmm0.v8_bfloat16\[0\]" +gdb_test_no_output "set var \$ymm8.v16_bfloat16\[1\] = 33.5" \ + "set %ymm8.v16_bfloat16\[1\]" +gdb_test_no_output "set var \$zmm16.v32_bfloat16\[2\] = 22.75" \ + "set %zmm16.v32_bfloat16\[2\]" + +gdb_test "p \$xmm0.v8_bfloat16\[0\]" "= 32.25" +gdb_test "p \$ymm8.v16_bfloat16\[1\]" "= 33.5" +gdb_test "p \$zmm16.v32_bfloat16\[2\]" "= 22.75" diff --git a/gdb/testsuite/lib/gdb.exp b/gdb/testsuite/lib/gdb.exp index 8ff2025..653f145 100644 --- a/gdb/testsuite/lib/gdb.exp +++ b/gdb/testsuite/lib/gdb.exp @@ -3061,6 +3061,57 @@ gdb_caching_proc skip_tsx_tests { return $skip_tsx_tests } +# Run a test on the target to see if it supports avx512bf16. Return 0 if so, +# 1 if it does not. Based on 'check_vmx_hw_available' from the GCC testsuite. + +gdb_caching_proc skip_avx512bf16_tests { + global srcdir subdir gdb_prompt inferior_exited_re + + set me "skip_avx512bf16_tests" + if { ![istarget "i?86-*-*"] && ![istarget "x86_64-*-*"] } { + verbose "$me: target does not support avx512bf16, returning 1" 2 + return 1 + } + + # Compile a test program. + set src { + int main() { + asm volatile ("vcvtne2ps2bf16 %xmm0, %xmm1, %xmm0"); + return 0; + } + } + if {![gdb_simple_compile $me $src executable]} { + return 1 + } + + # No error message, compilation succeeded so now run it via gdb. + + gdb_exit + gdb_start + gdb_reinitialize_dir $srcdir/$subdir + gdb_load "$obj" + gdb_run_cmd + gdb_expect { + -re ".*Illegal instruction.*${gdb_prompt} $" { + verbose -log "$me: avx512bf16 hardware not detected." + set skip_avx512bf16_tests 1 + } + -re ".*$inferior_exited_re normally.*${gdb_prompt} $" { + verbose -log "$me: avx512bf16 hardware detected." + set skip_avx512bf16_tests 0 + } + default { + warning "\n$me: default case taken." + set skip_avx512bf16_tests 1 + } + } + gdb_exit + remote_file build delete $obj + + verbose "$me: returning $skip_avx512bf16_tests" 2 + return $skip_avx512bf16_tests +} + # Run a test on the target to see if it supports btrace hardware. Return 0 if so, # 1 if it does not. Based on 'check_vmx_hw_available' from the GCC testsuite. |