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authorFelix Willgerodt <felix.willgerodt@intel.com>2020-09-11 15:43:54 +0200
committerFelix Willgerodt <felix.willgerodt@intel.com>2021-09-03 15:18:31 +0200
commit8661f70c499e9a6f2d8b12241d663881452178ae (patch)
tree8164f14d7b716fa22f74211ed61fb39059c5c62b /gdb/testsuite
parent41bbbb89c4d31a15ef317dd7de8af749d2a35e5f (diff)
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Add half support for AVX512 register view.
This adds support for the half datatype, FP16, to the AVX512 register printing. gdb/ChangeLog: 2020-07-21 Felix Willgerodt <Felix.Willgerodt@intel.com> * i386-tdep.c (i386_zmm_type) <v32_half>: New field. (i386_ymm_type) <v16_half>: New field. (i386_gdbarch_init): Add set_gdbarch_half_format. * features/i386/64bit-avx512.xml: Add half type. * features/i386/64bit-avx512.c: Regenerated. * features/i386/64bit-sse.xml: Add half type. * features/i386/64bit-sse.c: Regenerated. gdb/testsuite/ChangeLog: 2021-07-21 Felix Willgerodt <Felix.Willgerodt@intel.com> * gdb.arch/x86-avx512fp16.c: New file. * gdb.arch/x86-avx512fp16.exp: New file. * lib/gdb.exp (skip_avx512fp16_tests): New function.
Diffstat (limited to 'gdb/testsuite')
-rw-r--r--gdb/testsuite/gdb.arch/x86-avx512fp16.c164
-rw-r--r--gdb/testsuite/gdb.arch/x86-avx512fp16.exp68
-rw-r--r--gdb/testsuite/lib/gdb.exp51
3 files changed, 283 insertions, 0 deletions
diff --git a/gdb/testsuite/gdb.arch/x86-avx512fp16.c b/gdb/testsuite/gdb.arch/x86-avx512fp16.c
new file mode 100644
index 0000000..ebc7295
--- /dev/null
+++ b/gdb/testsuite/gdb.arch/x86-avx512fp16.c
@@ -0,0 +1,164 @@
+/* Test program for bfloat16 of AVX 512 registers.
+
+ Copyright 2021 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_half (void)
+{
+ asm("vcvtps2phx %xmm1, %xmm0");
+ asm("vcvtps2phx %xmm7, %xmm6");
+}
+
+void
+convert_ymm_from_float_to_half (void)
+{
+ asm("vcvtps2phx %ymm1, %xmm0");
+ asm("vcvtps2phx %ymm7, %xmm6");
+}
+
+void
+convert_zmm_from_float_to_half (void)
+{
+ asm("vcvtps2phx %zmm1, %ymm0");
+ asm("vcvtps2phx %zmm7, %ymm6");
+}
+
+int
+main ()
+{
+ /* Move initial values from array to registers and read from XMM regs. */
+ move_data_to_xmm_reg ();
+ convert_xmm_from_float_to_half ();
+ 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_half ();
+ 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_half ();
+ asm ("nop"); /* third breakpoint here */
+
+ return 0;
+}
diff --git a/gdb/testsuite/gdb.arch/x86-avx512fp16.exp b/gdb/testsuite/gdb.arch/x86-avx512fp16.exp
new file mode 100644
index 0000000..22575cc
--- /dev/null
+++ b/gdb/testsuite/gdb.arch/x86-avx512fp16.exp
@@ -0,0 +1,68 @@
+# Copyright 2021 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/>.
+
+# Test fp16 support in AVX512 registers.
+
+if { [skip_avx512fp16_tests] } {
+ unsupported "target does not support AVX512fp16"
+ 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_half" \
+ "= \\{0.5, 0.625, 0.75, 0.875, 0, 0, 0, 0\\}"
+
+gdb_test "print \$xmm6.v8_half" \
+ "= \\{3.5, 3.625, 3.75, 3.875, 0, 0, 0, 0\\}"
+
+# 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_half\[1\]" "= 10.25"
+gdb_test "print \$ymm6.v16_half\[1\]" "= 22.25"
+
+# 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_half\[1\]" "= 28.5"
+gdb_test "print \$zmm6.v32_half\[1\]" "= 76.5"
+
+# Test setting of half values.
+gdb_test_no_output "set var \$xmm0.v8_half\[0\] = 32.25"
+gdb_test_no_output "set var \$ymm3.v16_half\[1\] = 33.5"
+gdb_test_no_output "set var \$zmm7.v32_half\[2\] = 22.75"
+
+gdb_test "p \$xmm0.v8_half\[0\]" "= 32.25"
+gdb_test "p \$ymm3.v16_half\[1\]" "= 33.5"
+gdb_test "p \$zmm7.v32_half\[2\]" "= 22.75"
diff --git a/gdb/testsuite/lib/gdb.exp b/gdb/testsuite/lib/gdb.exp
index 3aea7ba..ca9864b 100644
--- a/gdb/testsuite/lib/gdb.exp
+++ b/gdb/testsuite/lib/gdb.exp
@@ -3384,6 +3384,57 @@ gdb_caching_proc skip_avx512bf16_tests {
return $skip_avx512bf16_tests
}
+# Run a test on the target to see if it supports avx512fp16. Return 0 if so,
+# 1 if it does not. Based on 'check_vmx_hw_available' from the GCC testsuite.
+
+gdb_caching_proc skip_avx512fp16_tests {
+ global srcdir subdir gdb_prompt inferior_exited_re
+
+ set me "skip_avx512fp16_tests"
+ if { ![istarget "i?86-*-*"] && ![istarget "x86_64-*-*"] } {
+ verbose "$me: target does not support avx512fp16, returning 1" 2
+ return 1
+ }
+
+ # Compile a test program.
+ set src {
+ int main() {
+ asm volatile ("vcvtps2phx %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: avx512fp16 hardware not detected."
+ set skip_avx512fp16_tests 1
+ }
+ -re ".*$inferior_exited_re normally.*${gdb_prompt} $" {
+ verbose -log "$me: avx512fp16 hardware detected."
+ set skip_avx512fp16_tests 0
+ }
+ default {
+ warning "\n$me: default case taken."
+ set skip_avx512fp16_tests 1
+ }
+ }
+ gdb_exit
+ remote_file build delete $obj
+
+ verbose "$me: returning $skip_avx512fp16_tests" 2
+ return $skip_avx512fp16_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.