From: cloudwalk <cloudwalk@d7cf8633-e32d-0410-b094-e92efae38249>
Date: Thu, 2 Jul 2020 13:37:12 +0000 (+0000)
Subject: Create a pointer to globals to reduce instructions needed to deref operand vars
X-Git-Url: https://git.rm.cloudns.org/?a=commitdiff_plain;h=8c1799cb28a10745836509e202ef6e85df5d5e70;p=xonotic%2Fdarkplaces.git

Create a pointer to globals to reduce instructions needed to deref operand vars

This should improve performance in debug builds, but is otherwise
optimized in release.

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@12774 d7cf8633-e32d-0410-b094-e92efae38249
---

diff --git a/prvm_exec.c b/prvm_exec.c
index d4cf0d83..c82b9e01 100644
--- a/prvm_exec.c
+++ b/prvm_exec.c
@@ -722,9 +722,9 @@ static void PRVM_StatementCoverageEvent(prvm_prog_t *prog, mfunction_t *func, in
 #  endif
 #endif
 
-#define OPA ((prvm_eval_t *)&prog->globals.fp[st->operand[0]])
-#define OPB ((prvm_eval_t *)&prog->globals.fp[st->operand[1]])
-#define OPC ((prvm_eval_t *)&prog->globals.fp[st->operand[2]])
+#define OPA ((prvm_eval_t *)&globals[st->operand[0]])
+#define OPB ((prvm_eval_t *)&globals[st->operand[1]])
+#define OPC ((prvm_eval_t *)&globals[st->operand[2]])
 extern cvar_t prvm_traceqc;
 extern cvar_t prvm_statementprofiling;
 extern qboolean prvm_runawaycheck;
@@ -761,6 +761,8 @@ void MVM_ExecuteProgram (prvm_prog_t *prog, func_t fnum, const char *errormessag
 	qboolean cached_allowworldwrites = prog->allowworldwrites;
 	unsigned int cached_flag = prog->flag;
 
+	prvm_vec_t *globals = prog->globals.fp;
+
 	calltime = Sys_DirtyTime();
 
 	if (!fnum || fnum >= (unsigned int)prog->numfunctions)
@@ -868,6 +870,8 @@ void CLVM_ExecuteProgram (prvm_prog_t *prog, func_t fnum, const char *errormessa
 	qboolean cached_allowworldwrites = prog->allowworldwrites;
 	unsigned int cached_flag = prog->flag;
 
+	prvm_vec_t *globals = prog->globals.fp;
+
 	calltime = Sys_DirtyTime();
 
 	if (!fnum || fnum >= (unsigned int)prog->numfunctions)
@@ -979,6 +983,8 @@ void PRVM_ExecuteProgram (prvm_prog_t *prog, func_t fnum, const char *errormessa
 	qboolean cached_allowworldwrites = prog->allowworldwrites;
 	unsigned int cached_flag = prog->flag;
 
+	prvm_vec_t *globals = prog->globals.fp;
+
 	calltime = Sys_DirtyTime();
 
 	if (!fnum || fnum >= (unsigned int)prog->numfunctions)