target/hexagon/*.py: clean up used 'toss' and 'numregs' vars

Many Hexagon python scripts call hex_common.get_tagregs(), but only one
call site use the full reg structure given by this function. To make the
code cleaner, let's make get_tagregs() filter out the unused fields
(i.e. 'toss' and 'numregs'), properly removed the unused variables at
the call sites. The hex_common.bad_register() function is also adjusted
to work exclusively with 'regtype' and 'regid' args. For the single call
site that does use toss/numregs, we provide an optional parameter to
get_tagregs() which will restore the old full behavior.

Suggested-by: Taylor Simpson <tsimpson@quicinc.com>
Signed-off-by: Matheus Tavares Bernardino <quic_mathbern@quicinc.com>
Reviewed-by: Taylor Simpson <tsimpson@quicinc.com>
Tested-by: Taylor Simpson <tsimpson@quicinc.com>
Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
Message-Id: <3ffd4ccb972879f57f499705c624e8eaba7f8b52.1684939078.git.quic_mathbern@quicinc.com>

1 files changed, 23 insertions, 23 deletions

diff --git a/target/hexagon/gen_tcg_funcs.py b/target/hexagon/gen_tcg_funcs.py
index c73467b840..fe29d83d4d 100755
--- a/target/hexagon/gen_tcg_funcs.py
+++ b/target/hexagon/gen_tcg_funcs.py
@@ -223,7 +223,7 @@ def genptr_decl_new(f, tag, regtype, regid, regno):
         hex_common.bad_register(regtype, regid)
 
 
-def genptr_decl_opn(f, tag, regtype, regid, toss, numregs, i):
+def genptr_decl_opn(f, tag, regtype, regid, i):
     if hex_common.is_pair(regid):
         genptr_decl(f, tag, regtype, regid, i)
     elif hex_common.is_single(regid):
@@ -232,9 +232,9 @@ def genptr_decl_opn(f, tag, regtype, regid, toss, numregs, i):
         elif hex_common.is_new_val(regtype, regid, tag):
             genptr_decl_new(f, tag, regtype, regid, i)
         else:
-            hex_common.bad_register(regtype, regid, toss, numregs)
+            hex_common.bad_register(regtype, regid)
     else:
-        hex_common.bad_register(regtype, regid, toss, numregs)
+        hex_common.bad_register(regtype, regid)
 
 
 def genptr_decl_imm(f, immlett):
@@ -354,12 +354,12 @@ def genptr_src_read_opn(f, regtype, regid, tag):
         elif hex_common.is_new_val(regtype, regid, tag):
             genptr_src_read_new(f, regtype, regid)
         else:
-            hex_common.bad_register(regtype, regid, toss, numregs)
+            hex_common.bad_register(regtype, regid)
     else:
-        hex_common.bad_register(regtype, regid, toss, numregs)
+        hex_common.bad_register(regtype, regid)
 
 
-def gen_helper_call_opn(f, tag, regtype, regid, toss, numregs, i):
+def gen_helper_call_opn(f, tag, regtype, regid, i):
     if i > 0:
         f.write(", ")
     if hex_common.is_pair(regid):
@@ -370,9 +370,9 @@ def gen_helper_call_opn(f, tag, regtype, regid, toss, numregs, i):
         elif hex_common.is_new_val(regtype, regid, tag):
             f.write(f"{regtype}{regid}N")
         else:
-            hex_common.bad_register(regtype, regid, toss, numregs)
+            hex_common.bad_register(regtype, regid)
     else:
-        hex_common.bad_register(regtype, regid, toss, numregs)
+        hex_common.bad_register(regtype, regid)
 
 
 def gen_helper_decl_imm(f, immlett):
@@ -468,7 +468,7 @@ def genptr_dst_write_opn(f, regtype, regid, tag):
         else:
             genptr_dst_write(f, tag, regtype, regid)
     else:
-        hex_common.bad_register(regtype, regid, toss, numregs)
+        hex_common.bad_register(regtype, regid)
 
 
 ##
@@ -502,8 +502,8 @@ def gen_tcg_func(f, tag, regs, imms):
         gen_decl_ea_tcg(f, tag)
     i = 0
     ## Declare all the operands (regs and immediates)
-    for regtype, regid, toss, numregs in regs:
-        genptr_decl_opn(f, tag, regtype, regid, toss, numregs, i)
+    for regtype, regid in regs:
+        genptr_decl_opn(f, tag, regtype, regid, i)
         i += 1
     for immlett, bits, immshift in imms:
         genptr_decl_imm(f, immlett)
@@ -514,14 +514,14 @@ def gen_tcg_func(f, tag, regs, imms):
         f.write("    fCHECKFORGUEST();\n")
 
     ## Read all the inputs
-    for regtype, regid, toss, numregs in regs:
+    for regtype, regid in regs:
         if hex_common.is_read(regid):
             genptr_src_read_opn(f, regtype, regid, tag)
 
     if hex_common.is_idef_parser_enabled(tag):
         declared = []
         ## Handle registers
-        for regtype, regid, toss, numregs in regs:
+        for regtype, regid in regs:
             if hex_common.is_pair(regid) or (
                 hex_common.is_single(regid)
                 and hex_common.is_old_val(regtype, regid, tag)
@@ -532,7 +532,7 @@ def gen_tcg_func(f, tag, regs, imms):
             elif hex_common.is_new_val(regtype, regid, tag):
                 declared.append(f"{regtype}{regid}N")
             else:
-                hex_common.bad_register(regtype, regid, toss, numregs)
+                hex_common.bad_register(regtype, regid)
 
         ## Handle immediates
         for immlett, bits, immshift in imms:
@@ -564,11 +564,11 @@ def gen_tcg_func(f, tag, regs, imms):
         f.write(f"    gen_helper_{tag}(")
         i = 0
         ## If there is a scalar result, it is the return type
-        for regtype, regid, toss, numregs in regs:
+        for regtype, regid in regs:
             if hex_common.is_written(regid):
                 if hex_common.is_hvx_reg(regtype):
                     continue
-                gen_helper_call_opn(f, tag, regtype, regid, toss, numregs, i)
+                gen_helper_call_opn(f, tag, regtype, regid, i)
                 i += 1
         if i > 0:
             f.write(", ")
@@ -576,23 +576,23 @@ def gen_tcg_func(f, tag, regs, imms):
         i = 1
         ## For conditional instructions, we pass in the destination register
         if "A_CONDEXEC" in hex_common.attribdict[tag]:
-            for regtype, regid, toss, numregs in regs:
+            for regtype, regid in regs:
                 if hex_common.is_writeonly(regid) and not hex_common.is_hvx_reg(
                     regtype
                 ):
-                    gen_helper_call_opn(f, tag, regtype, regid, toss, numregs, i)
+                    gen_helper_call_opn(f, tag, regtype, regid, i)
                     i += 1
-        for regtype, regid, toss, numregs in regs:
+        for regtype, regid in regs:
             if hex_common.is_written(regid):
                 if not hex_common.is_hvx_reg(regtype):
                     continue
-                gen_helper_call_opn(f, tag, regtype, regid, toss, numregs, i)
+                gen_helper_call_opn(f, tag, regtype, regid, i)
                 i += 1
-        for regtype, regid, toss, numregs in regs:
+        for regtype, regid in regs:
             if hex_common.is_read(regid):
                 if hex_common.is_hvx_reg(regtype) and hex_common.is_readwrite(regid):
                     continue
-                gen_helper_call_opn(f, tag, regtype, regid, toss, numregs, i)
+                gen_helper_call_opn(f, tag, regtype, regid, i)
                 i += 1
         for immlett, bits, immshift in imms:
             gen_helper_call_imm(f, immlett)
@@ -612,7 +612,7 @@ def gen_tcg_func(f, tag, regs, imms):
         f.write(");\n")
 
     ## Write all the outputs
-    for regtype, regid, toss, numregs in regs:
+    for regtype, regid in regs:
         if hex_common.is_written(regid):
             genptr_dst_write_opn(f, regtype, regid, tag)