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Fix compiler spec

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Only a1 and a12-a15 are callee-saved. Also, a2 up to a5 can be used for
return values.
This commit is contained in:
Sebastian Schmidt
2019-06-22 22:04:43 +02:00
parent 221b8c80c5
commit 525579b938
1 changed files with 9 additions and 5 deletions
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14
data/languages/xtensa.cspec
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@@ -55,17 +55,21 @@
<pentry minsize="1" maxsize="4" extension="inttype">
<register name="a2"/>
</pentry>
<pentry minsize="1" maxsize="4" extension="inttype">
<register name="a3"/>
</pentry>
<pentry minsize="1" maxsize="4" extension="inttype">
<register name="a4"/>
</pentry>
<pentry minsize="1" maxsize="4" extension="inttype">
<register name="a5"/>
</pentry>
</output>
<returnaddress>
<register name="a0"/>
</returnaddress>
<unaffected>
<register name="a0"/>
<register name="a1"/>
<register name="a8"/>
<register name="a9"/>
<register name="a10"/>
<register name="a11"/>
<register name="a12"/>
<register name="a13"/>
<register name="a14"/>