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gdb, i386: Enable AVX512-bfloat16 for i386 targets.

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Values of type bfloat16 can also be used on 32-bit targets, which was missed
in the original enablement.  This also adjusts the testcase to pass with
"unix/-m32", where only the lower 8 AVX registers are available.

gdb/ChangeLog:
2021-07-21  Felix Willgerodt  <Felix.Willgerodt@intel.com>

	* features/i386/32bit-sse.xml: Add bfloat16 type.
	* features/i386/32bit-sse.c: Regenerated.

gdb/testsuite/ChangeLog:
2021-07-21  Felix Willgerodt  <Felix.Willgerodt@intel.com>

	* gdb.arch/x86-avx512bf16.exp: Only use x/z/ymm 0-7.
This commit is contained in:
Felix Willgerodt
2021-07-21 14:38:04 +02:00
parent 41e37c9d0a
commit 41bbbb89c4
3 changed files with 13 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
gdb/features/i386/32bit-sse.c
View File

@ -10,6 +10,9 @@ create_feature_i386_32bit_sse (struct target_desc *result, long regnum)
feature = tdesc_create_feature (result, "org.gnu.gdb.i386.sse"); feature = tdesc_create_feature (result, "org.gnu.gdb.i386.sse");
tdesc_type *element_type; 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"); element_type = tdesc_named_type (feature, "ieee_single");
tdesc_create_vector (feature, "v4f", element_type, 4); tdesc_create_vector (feature, "v4f", element_type, 4);
@ -31,6 +34,8 @@ create_feature_i386_32bit_sse (struct target_desc *result, long regnum)
tdesc_type_with_fields *type_with_fields; tdesc_type_with_fields *type_with_fields;
type_with_fields = tdesc_create_union (feature, "vec128"); type_with_fields = tdesc_create_union (feature, "vec128");
tdesc_type *field_type; 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"); field_type = tdesc_named_type (feature, "v4f");
tdesc_add_field (type_with_fields, "v4_float", field_type); tdesc_add_field (type_with_fields, "v4_float", field_type);
field_type = tdesc_named_type (feature, "v2d"); field_type = tdesc_named_type (feature, "v2d");

2
gdb/features/i386/32bit-sse.xml
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@ -7,6 +7,7 @@
<!DOCTYPE feature SYSTEM "gdb-target.dtd"> <!DOCTYPE feature SYSTEM "gdb-target.dtd">
<feature name="org.gnu.gdb.i386.sse"> <feature name="org.gnu.gdb.i386.sse">
<vector id="v8bf16" type="bfloat16" count="8"/>
<vector id="v4f" type="ieee_single" count="4"/> <vector id="v4f" type="ieee_single" count="4"/>
<vector id="v2d" type="ieee_double" count="2"/> <vector id="v2d" type="ieee_double" count="2"/>
<vector id="v16i8" type="int8" count="16"/> <vector id="v16i8" type="int8" count="16"/>
@ -14,6 +15,7 @@
<vector id="v4i32" type="int32" count="4"/> <vector id="v4i32" type="int32" count="4"/>
<vector id="v2i64" type="int64" count="2"/> <vector id="v2i64" type="int64" count="2"/>
<union id="vec128"> <union id="vec128">
<field name="v8_bfloat16" type="v8bf16"/>
<field name="v4_float" type="v4f"/> <field name="v4_float" type="v4f"/>
<field name="v2_double" type="v2d"/> <field name="v2_double" type="v2d"/>
<field name="v16_int8" type="v16i8"/> <field name="v16_int8" type="v16i8"/>

12
gdb/testsuite/gdb.arch/x86-avx512bf16.exp
View File

@ -64,11 +64,11 @@ gdb_test "print \$zmm6.v32_bfloat16\[1\]" "= 68.5"
# Test setting of bfloat values # Test setting of bfloat values
gdb_test_no_output "set var \$xmm0.v8_bfloat16\[0\] = 32.25" \ gdb_test_no_output "set var \$xmm0.v8_bfloat16\[0\] = 32.25" \
"set %xmm0.v8_bfloat16\[0\]" "set %xmm0.v8_bfloat16\[0\]"
gdb_test_no_output "set var \$ymm8.v16_bfloat16\[1\] = 33.5" \ gdb_test_no_output "set var \$ymm4.v16_bfloat16\[1\] = 33.5" \
"set %ymm8.v16_bfloat16\[1\]" "set %ymm4.v16_bfloat16\[1\]"
gdb_test_no_output "set var \$zmm16.v32_bfloat16\[2\] = 22.75" \ gdb_test_no_output "set var \$zmm7.v32_bfloat16\[2\] = 22.75" \
"set %zmm16.v32_bfloat16\[2\]" "set %zmm7.v32_bfloat16\[2\]"
gdb_test "p \$xmm0.v8_bfloat16\[0\]" "= 32.25" gdb_test "p \$xmm0.v8_bfloat16\[0\]" "= 32.25"
gdb_test "p \$ymm8.v16_bfloat16\[1\]" "= 33.5" gdb_test "p \$ymm4.v16_bfloat16\[1\]" "= 33.5"
gdb_test "p \$zmm16.v32_bfloat16\[2\]" "= 22.75" gdb_test "p \$zmm7.v32_bfloat16\[2\]" "= 22.75"