Fix PowerPC inline assembly on old GNU as. It does not like an empty clobbered register line, so simply omit the line.

kareem-wolfssl · kareem-wolfssl · commit 1172354664c2 · 2023-04-27T14:54:51.000-07:00
diff --git a/wolfcrypt/src/sp_int.c b/wolfcrypt/src/sp_int.c
@@ -3638,7 +3638,6 @@ static WC_INLINE sp_int_digit sp_div_word(sp_int_digit hi, sp_int_digit lo,
         "li	%[o], 0			\n\t"            \
         : [l] "+r" (vl), [h] "+r" (vh), [o] "=r" (vo)    \
         : [a] "r" (va), [b] "r" (vb)                     \
-        :                                                \
     )
 /* Multiply va by vb and add double size result into: vo | vh | vl */
 #define SP_ASM_MUL_ADD(vl, vh, vo, va, vb)               \
@@ -3764,7 +3763,6 @@ static WC_INLINE sp_int_digit sp_div_word(sp_int_digit hi, sp_int_digit lo,
         "cntlzw	%[n], %[a]	\n\t"                    \
         : [n] "=r" (vn)                                  \
         : [a] "r" (va)                                   \
-        :                                                \
     )
 
 #define SP_INT_ASM_AVAILABLE

Original file line number	Diff line number	Diff line change
`@@ -3638,7 +3638,6 @@ static WC_INLINE sp_int_digit sp_div_word(sp_int_digit hi, sp_int_digit lo,`
`3638`	`3638`	`"li %[o], 0 \n\t" \`
`3639`	`3639`	`: [l] "+r" (vl), [h] "+r" (vh), [o] "=r" (vo) \`
`3640`	`3640`	`: [a] "r" (va), [b] "r" (vb) \`
`3641`		`- : \`
`3642`	`3641`	`)`
`3643`	`3642`	`/* Multiply va by vb and add double size result into: vo \| vh \| vl */`
`3644`	`3643`	`#define SP_ASM_MUL_ADD(vl, vh, vo, va, vb) \`
`@@ -3764,7 +3763,6 @@ static WC_INLINE sp_int_digit sp_div_word(sp_int_digit hi, sp_int_digit lo,`
`3764`	`3763`	`"cntlzw %[n], %[a] \n\t" \`
`3765`	`3764`	`: [n] "=r" (vn) \`
`3766`	`3765`	`: [a] "r" (va) \`
`3767`		`- : \`
`3768`	`3766`	`)`
`3769`	`3767`
`3770`	`3768`	`#define SP_INT_ASM_AVAILABLE`