sh: Provide an __sdivsi3_2 export for sh64.
Newer code paths that are heavier in 64-bit math manage to get this generated by newer compilers, provide a definition and export accordingly. This is trivially wrapped around the existing __sdivsi3 code. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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@ -76,5 +76,7 @@ EXPORT_SYMBOL(strcpy);
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#define DECLARE_EXPORT(name) extern void name(void);EXPORT_SYMBOL(name)
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DECLARE_EXPORT(__sdivsi3);
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DECLARE_EXPORT(__sdivsi3_1);
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DECLARE_EXPORT(__sdivsi3_2);
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DECLARE_EXPORT(__udivsi3);
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DECLARE_EXPORT(__div_table);
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@ -1,4 +1,6 @@
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.global __sdivsi3
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.global __sdivsi3_1
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.global __sdivsi3_2
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.section .text..SHmedia32,"ax"
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.align 2
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@ -6,13 +8,15 @@
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/* clobbered: r1,r18,r19,r20,r21,r25,tr0 */
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/* result in r0 */
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__sdivsi3:
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__sdivsi3_1:
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ptb __div_table,tr0
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gettr tr0,r20
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__sdivsi3_2:
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nsb r5, r1
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shlld r5, r1, r25 /* normalize; [-2 ..1, 1..2) in s2.62 */
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shari r25, 58, r21 /* extract 5(6) bit index (s2.4 with hole -1..1) */
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/* bubble */
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gettr tr0,r20
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ldx.ub r20, r21, r19 /* u0.8 */
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shari r25, 32, r25 /* normalize to s2.30 */
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shlli r21, 1, r21
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