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Content-Type: text/plain; charset=UTF-8
Content-Length: 365
Content-Disposition: inline; filename="004-extra_optimization.patch"
Last-Modified: Thu, 20 Feb 2025 21:01:00 GMT
Expires: Sun, 18 Feb 2035 21:01:00 GMT
ETag: "ba1b71c610d68b12ea9e737bd07c36593f851207"

--- a/Makefile
+++ b/Makefile
@@ -533,6 +533,9 @@ endif
 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
 CHECKFLAGS     += $(NOSTDINC_FLAGS)
 
+# improve gcc optimization
+CFLAGS += $(call cc-option,-funit-at-a-time,)
+
 # warn about C99 declaration after statement
 KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)
 
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<tr><td class='linenumbers'><pre><a id='n1' href='#n1'>1</a>
<a id='n2' href='#n2'>2</a>
<a id='n3' href='#n3'>3</a>
<a id='n4' href='#n4'>4</a>
<a id='n5' href='#n5'>5</a>
<a id='n6' href='#n6'>6</a>
<a id='n7' href='#n7'>7</a>
<a id='n8' href='#n8'>8</a>
<a id='n9' href='#n9'>9</a>
<a id='n10' href='#n10'>10</a>
<a id='n11' href='#n11'>11</a>
<a id='n12' href='#n12'>12</a>
<a id='n13' href='#n13'>13</a>
<a id='n14' href='#n14'>14</a>
<a id='n15' href='#n15'>15</a>
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<a id='n17' href='#n17'>17</a>
<a id='n18' href='#n18'>18</a>
<a id='n19' href='#n19'>19</a>
<a id='n20' href='#n20'>20</a>
<a id='n21' href='#n21'>21</a>
<a id='n22' href='#n22'>22</a>
<a id='n23' href='#n23'>23</a>
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<td class='lines'><pre><code><style>pre { line-height: 125%; margin: 0; }
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<span class="gi">+++ b/cpu/mips/config.mk</span>
<span class="gu">@@ -23,16 +23,18 @@</span>
 v=$(shell $(AS) --version | grep &#39;GNU assembler&#39; | egrep -o &#39;2\.[0-9\.]+&#39; | cut -d. -f2)
 MIPSFLAGS:=$(shell \
 if [ &quot;$v&quot; -lt &quot;14&quot; ]; then \
<span class="gd">-	echo &quot;-mcpu=4kc&quot;; \</span>
<span class="gi">+	echo &quot;-mcpu=mips32&quot;; \</span>
 else \
<span class="gd">-	echo &quot;-march=4kc -mtune=4kc&quot;; \</span>
<span class="gi">+	echo &quot;-mips32 -march=mips32 -mtune=mips32&quot;; \</span>
 fi)
 
<span class="gi">+ifndef ENDIANNESS</span>
 ifneq (,$(findstring 4KCle,$(CROSS_COMPILE)))
 ENDIANNESS = -EL
 else
 ENDIANNESS = -EB
 endif
<span class="gi">+endif</span>
 
 MIPSFLAGS += $(ENDIANNESS)
 
</pre></div>
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