diff options
Diffstat (limited to 'crypto/bn/bn_lib.c')
| -rw-r--r-- | crypto/bn/bn_lib.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/crypto/bn/bn_lib.c b/crypto/bn/bn_lib.c index 4627153e3d..8bcd6c426e 100644 --- a/crypto/bn/bn_lib.c +++ b/crypto/bn/bn_lib.c @@ -350,6 +350,11 @@ static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words) a0=B[0]; a1=B[1]; a2=B[2]; a3=B[3]; A[0]=a0; A[1]=a1; A[2]=a2; A[3]=a3; } + /* + * workaround for ultrix cc: without 'case 0', the optimizer does + * the switch table by doing a=top&3; a--; goto jump_table[a]; + * which fails for top== 0 + */ switch (b->top&3) { case 3: A[2]=B[2]; @@ -357,11 +362,6 @@ static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words) case 1: A[0]=B[0]; case 0: ; - /* - * workaround for ultrix cc: without 'case 0', the optimizer does - * the switch table by doing a=top&3; a--; goto jump_table[a]; - * which fails for top== 0 - */ } } @@ -508,12 +508,13 @@ BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b) a0=B[0]; a1=B[1]; a2=B[2]; a3=B[3]; A[0]=a0; A[1]=a1; A[2]=a2; A[3]=a3; } + /* ultrix cc workaround, see comments in bn_expand_internal */ switch (b->top&3) { case 3: A[2]=B[2]; case 2: A[1]=B[1]; case 1: A[0]=B[0]; - case 0: ; /* ultrix cc workaround, see comments in bn_expand_internal */ + case 0: ; } #else memcpy(a->d,b->d,sizeof(b->d[0])*b->top); |