From e4e50e36f1451a7153de4192dadfddc80fdc4218 Mon Sep 17 00:00:00 2001
From: Solomon Peachy <pizza@shaftnet.org>
Date: Tue, 12 Aug 2025 09:04:58 -0400
Subject: [PATCH] rbcodec:  Force use of -O2 for dsp code

We already use targeted optimization for most codecs, and the
DSP code is just as performance-sensitive.

Improves mp3 decoding performance by a whopping 1% wwhen PBE is
turned on.

Change-Id: I801a6624c0f7068b6cd67961ad3b08f809b92fca
---
 lib/rbcodec/rbcodec.make | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/rbcodec/rbcodec.make b/lib/rbcodec/rbcodec.make
index f2a7c7e569..bc28d00bae 100644
--- a/lib/rbcodec/rbcodec.make
+++ b/lib/rbcodec/rbcodec.make
@@ -22,4 +22,9 @@ CORE_LIBS := $(RBCODECLIB) $(CORE_LIBS)
 $(RBCODECLIB): $(RBCODECLIB_OBJ)
 	$(call PRINTS,AR $(@F))$(AR) rcs $@ $^ >/dev/null
 
+# Force use of -O2 for DSP code
+ifneq ($(MEMORYSIZE),2)
+$(BUILDDIR)/lib/rbcodec/dsp/%: CFLAGS += -O2
+endif
+
 include $(RBCODECLIB_DIR)/codecs/codecs.make