From 02aa70559ae6152ef63b23793208f71c9cbb2d82 Mon Sep 17 00:00:00 2001
From: Fazana <52551480+FazanaJ@users.noreply.github.com>
Date: Thu, 30 Sep 2021 23:04:43 +0100
Subject: [PATCH] Further make flag tweaks

Performance go wheeee
---
 Makefile               |  2 ++
 src/engine/math_util.c | 26 +++++++++++++++++++++-----
 2 files changed, 23 insertions(+), 5 deletions(-)

diff --git a/Makefile b/Makefile
index 013a24ed..fb3a25c4 100644
--- a/Makefile
+++ b/Makefile
@@ -577,6 +577,8 @@ $(BUILD_DIR)/src/usb/usb.o: CFLAGS += -Wno-unused-variable -Wno-sign-compare -Wn
 $(BUILD_DIR)/src/usb/debug.o: OPT_FLAGS := -O0
 $(BUILD_DIR)/src/usb/debug.o: CFLAGS += -Wno-unused-parameter -Wno-maybe-uninitialized
 $(BUILD_DIR)/src/audio/*.o: OPT_FLAGS := -Os -fno-jump-tables
+$(BUILD_DIR)/src/engine/math_util.o: OPT_FLAGS := -Ofast -fno-unroll-loops -fno-peel-loops --param case-values-threshold=20
+$(BUILD_DIR)/src/game/rendering_graph_node.o: OPT_FLAGS := -Ofast -fno-unroll-loops -fno-peel-loops --param case-values-threshold=20
 
 ALL_DIRS := $(BUILD_DIR) $(addprefix $(BUILD_DIR)/,$(SRC_DIRS) asm/debug $(GODDARD_SRC_DIRS) $(LIBZ_SRC_DIRS) $(ULTRA_BIN_DIRS) $(BIN_DIRS) $(TEXTURE_DIRS) $(TEXT_DIRS) $(SOUND_SAMPLE_DIRS) $(addprefix levels/,$(LEVEL_DIRS)) rsp include) $(YAY0_DIR) $(addprefix $(YAY0_DIR)/,$(VERSION)) $(SOUND_BIN_DIR) $(SOUND_BIN_DIR)/sequences/$(VERSION)
 
diff --git a/src/engine/math_util.c b/src/engine/math_util.c
index 4670ffcc..818a5184 100644
--- a/src/engine/math_util.c
+++ b/src/engine/math_util.c
@@ -57,13 +57,19 @@ f32 max_3f(f32 a0, f32 a1, f32 a2) { if (a1 > a0) a0 = a1; if (a2 > a0) a0 = a2;
 
 /// Copy vector 'src' to 'dest'
 void vec3f_copy(Vec3f dest, Vec3f src) {
-    ((u64 *) dest)[0] = ((u64 *) src)[0];
-    ((u32 *) dest)[2] = ((u32 *) src)[2];
+    register s32 x = ((u32 *) src)[0];
+    register s32 y = ((u32 *) src)[1];
+    register s32 z = ((u32 *) src)[2];
+    ((u32 *) dest)[0] = x;
+    ((u32 *) dest)[1] = y;
+    ((u32 *) dest)[2] = z;
 }
 
 /// Set vector 'dest' to (x, y, z)
-void vec3f_set(Vec3f dest, f32 x, f32 y, f32 z) {
-    vec3_set(dest, x, y, z);
+inline void vec3f_set(Vec3f dest, f32 x, f32 y, f32 z) {
+    dest[0] = x;
+    dest[1] = y;
+    dest[2] = z;
 }
 
 /// Add vector 'a' to 'dest'
@@ -82,7 +88,17 @@ void vec3f_add(Vec3f dest, Vec3f a) {
 
 /// Make 'dest' the sum of vectors a and b.
 void vec3f_sum(Vec3f dest, Vec3f a, Vec3f b) {
-    vec3_sum(dest, a, b);
+    register f32 *temp = dest;
+    register s32 j;
+    register f32 x,y;
+    for (j = 0; j < 3; j++) {
+        x = *a;
+        a++;
+        y = *b;
+        b++;
+        *temp = x+y;
+        temp++;
+    }
 }
 
 /// Copy vector src to dest