Hexagon HVX (target/hexagon) helper overrides infrastructure

Build the infrastructure to create overrides for HVX instructions.
We create a new empty file (gen_tcg_hvx.h) that will be populated
in subsequent patches.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>

target/hexagon/gen_helper_funcs.py

@@ -286,11 +286,12 @@ def main():
     hex_common.read_semantics_file(sys.argv[1])
     hex_common.read_attribs_file(sys.argv[2])
     hex_common.read_overrides_file(sys.argv[3])
+    hex_common.read_overrides_file(sys.argv[4])
     hex_common.calculate_attribs()
     tagregs = hex_common.get_tagregs()
     tagimms = hex_common.get_tagimms()
 
-    with open(sys.argv[4], 'w') as f:
+    with open(sys.argv[5], 'w') as f:
         for tag in hex_common.tags:
             ## Skip the priv instructions
             if ( "A_PRIV" in hex_common.attribdict[tag] ) :

target/hexagon/gen_helper_protos.py

@@ -135,11 +135,12 @@ def main():
     hex_common.read_semantics_file(sys.argv[1])
     hex_common.read_attribs_file(sys.argv[2])
     hex_common.read_overrides_file(sys.argv[3])
+    hex_common.read_overrides_file(sys.argv[4])
     hex_common.calculate_attribs()
     tagregs = hex_common.get_tagregs()
     tagimms = hex_common.get_tagimms()
 
-    with open(sys.argv[4], 'w') as f:
+    with open(sys.argv[5], 'w') as f:
         for tag in hex_common.tags:
             ## Skip the priv instructions
             if ( "A_PRIV" in hex_common.attribdict[tag] ) :

target/hexagon/gen_tcg_funcs.py

@@ -675,11 +675,12 @@ def main():
     hex_common.read_semantics_file(sys.argv[1])
     hex_common.read_attribs_file(sys.argv[2])
     hex_common.read_overrides_file(sys.argv[3])
+    hex_common.read_overrides_file(sys.argv[4])
     hex_common.calculate_attribs()
     tagregs = hex_common.get_tagregs()
     tagimms = hex_common.get_tagimms()
 
-    with open(sys.argv[4], 'w') as f:
+    with open(sys.argv[5], 'w') as f:
         f.write("#ifndef HEXAGON_TCG_FUNCS_H\n")
         f.write("#define HEXAGON_TCG_FUNCS_H\n\n")
 

target/hexagon/gen_tcg_hvx.h

@@ -0,0 +1,21 @@
+/*
+ *  Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved.
+ *
+ *  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 2 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/>.
+ */
+
+#ifndef HEXAGON_GEN_TCG_HVX_H
+#define HEXAGON_GEN_TCG_HVX_H
+
+#endif

target/hexagon/genptr.c

@@ -26,6 +26,7 @@
 #include "macros.h"
 #undef QEMU_GENERATE
 #include "gen_tcg.h"
+#include "gen_tcg_hvx.h"
 
 static inline void gen_log_predicated_reg_write(int rnum, TCGv val, int slot)
 {

target/hexagon/meson.build

@@ -20,6 +20,7 @@ hexagon_ss = ss.source_set()
 hex_common_py = 'hex_common.py'
 attribs_def = meson.current_source_dir() / 'attribs_def.h.inc'
 gen_tcg_h = meson.current_source_dir() / 'gen_tcg.h'
+gen_tcg_hvx_h = meson.current_source_dir() / 'gen_tcg_hvx.h'
 
 #
 #  Step 1
@@ -63,8 +64,8 @@ helper_protos_generated = custom_target(
     'helper_protos_generated.h.inc',
     output: 'helper_protos_generated.h.inc',
     depends: [semantics_generated],
-    depend_files: [hex_common_py, attribs_def, gen_tcg_h],
-    command: [python, files('gen_helper_protos.py'), semantics_generated, attribs_def, gen_tcg_h, '@OUTPUT@'],
+    depend_files: [hex_common_py, attribs_def, gen_tcg_h, gen_tcg_hvx_h],
+    command: [python, files('gen_helper_protos.py'), semantics_generated, attribs_def, gen_tcg_h, gen_tcg_hvx_h, '@OUTPUT@'],
 )
 hexagon_ss.add(helper_protos_generated)
 
@@ -72,8 +73,8 @@ tcg_funcs_generated = custom_target(
     'tcg_funcs_generated.c.inc',
     output: 'tcg_funcs_generated.c.inc',
     depends: [semantics_generated],
-    depend_files: [hex_common_py, attribs_def, gen_tcg_h],
-    command: [python, files('gen_tcg_funcs.py'), semantics_generated, attribs_def, gen_tcg_h, '@OUTPUT@'],
+    depend_files: [hex_common_py, attribs_def, gen_tcg_h, gen_tcg_hvx_h],
+    command: [python, files('gen_tcg_funcs.py'), semantics_generated, attribs_def, gen_tcg_h, gen_tcg_hvx_h, '@OUTPUT@'],
 )
 hexagon_ss.add(tcg_funcs_generated)
 
@@ -90,8 +91,8 @@ helper_funcs_generated = custom_target(
     'helper_funcs_generated.c.inc',
     output: 'helper_funcs_generated.c.inc',
     depends: [semantics_generated],
-    depend_files: [hex_common_py, attribs_def, gen_tcg_h],
-    command: [python, files('gen_helper_funcs.py'), semantics_generated, attribs_def, gen_tcg_h, '@OUTPUT@'],
+    depend_files: [hex_common_py, attribs_def, gen_tcg_h, gen_tcg_hvx_h],
+    command: [python, files('gen_helper_funcs.py'), semantics_generated, attribs_def, gen_tcg_h, gen_tcg_hvx_h, '@OUTPUT@'],
 )
 hexagon_ss.add(helper_funcs_generated)