This updates to the newer register selection proved by HACL*, which leads to a more compact instruction encoding, and saves around 100 cycles. Signed-off-by: Jason A. Donenfeld <Jason@xxxxxxxxx> --- arch/x86/crypto/curve25519-x86_64.c | 110 ++++++++++++++-------------- 1 file changed, 55 insertions(+), 55 deletions(-) diff --git a/arch/x86/crypto/curve25519-x86_64.c b/arch/x86/crypto/curve25519-x86_64.c index e4e58b8e9afe..8a17621f7d3a 100644 --- a/arch/x86/crypto/curve25519-x86_64.c +++ b/arch/x86/crypto/curve25519-x86_64.c @@ -167,28 +167,28 @@ static inline void fmul(u64 *out, const u64 *f1, const u64 *f2, u64 *tmp) " movq 0(%1), %%rdx;" " mulxq 0(%3), %%r8, %%r9;" " xor %%r10, %%r10;" " movq %%r8, 0(%0);" " mulxq 8(%3), %%r10, %%r11;" " adox %%r9, %%r10;" " movq %%r10, 8(%0);" - " mulxq 16(%3), %%r12, %%r13;" " adox %%r11, %%r12;" + " mulxq 16(%3), %%rbx, %%r13;" " adox %%r11, %%rbx;" " mulxq 24(%3), %%r14, %%rdx;" " adox %%r13, %%r14;" " mov $0, %%rax;" " adox %%rdx, %%rax;" /* Compute src1[1] * src2 */ " movq 8(%1), %%rdx;" " mulxq 0(%3), %%r8, %%r9;" " xor %%r10, %%r10;" " adcxq 8(%0), %%r8;" " movq %%r8, 8(%0);" - " mulxq 8(%3), %%r10, %%r11;" " adox %%r9, %%r10;" " adcx %%r12, %%r10;" " movq %%r10, 16(%0);" - " mulxq 16(%3), %%r12, %%r13;" " adox %%r11, %%r12;" " adcx %%r14, %%r12;" " mov $0, %%r8;" + " mulxq 8(%3), %%r10, %%r11;" " adox %%r9, %%r10;" " adcx %%rbx, %%r10;" " movq %%r10, 16(%0);" + " mulxq 16(%3), %%rbx, %%r13;" " adox %%r11, %%rbx;" " adcx %%r14, %%rbx;" " mov $0, %%r8;" " mulxq 24(%3), %%r14, %%rdx;" " adox %%r13, %%r14;" " adcx %%rax, %%r14;" " mov $0, %%rax;" " adox %%rdx, %%rax;" " adcx %%r8, %%rax;" /* Compute src1[2] * src2 */ " movq 16(%1), %%rdx;" " mulxq 0(%3), %%r8, %%r9;" " xor %%r10, %%r10;" " adcxq 16(%0), %%r8;" " movq %%r8, 16(%0);" - " mulxq 8(%3), %%r10, %%r11;" " adox %%r9, %%r10;" " adcx %%r12, %%r10;" " movq %%r10, 24(%0);" - " mulxq 16(%3), %%r12, %%r13;" " adox %%r11, %%r12;" " adcx %%r14, %%r12;" " mov $0, %%r8;" + " mulxq 8(%3), %%r10, %%r11;" " adox %%r9, %%r10;" " adcx %%rbx, %%r10;" " movq %%r10, 24(%0);" + " mulxq 16(%3), %%rbx, %%r13;" " adox %%r11, %%rbx;" " adcx %%r14, %%rbx;" " mov $0, %%r8;" " mulxq 24(%3), %%r14, %%rdx;" " adox %%r13, %%r14;" " adcx %%rax, %%r14;" " mov $0, %%rax;" " adox %%rdx, %%rax;" " adcx %%r8, %%rax;" /* Compute src1[3] * src2 */ " movq 24(%1), %%rdx;" " mulxq 0(%3), %%r8, %%r9;" " xor %%r10, %%r10;" " adcxq 24(%0), %%r8;" " movq %%r8, 24(%0);" - " mulxq 8(%3), %%r10, %%r11;" " adox %%r9, %%r10;" " adcx %%r12, %%r10;" " movq %%r10, 32(%0);" - " mulxq 16(%3), %%r12, %%r13;" " adox %%r11, %%r12;" " adcx %%r14, %%r12;" " movq %%r12, 40(%0);" " mov $0, %%r8;" + " mulxq 8(%3), %%r10, %%r11;" " adox %%r9, %%r10;" " adcx %%rbx, %%r10;" " movq %%r10, 32(%0);" + " mulxq 16(%3), %%rbx, %%r13;" " adox %%r11, %%rbx;" " adcx %%r14, %%rbx;" " movq %%rbx, 40(%0);" " mov $0, %%r8;" " mulxq 24(%3), %%r14, %%rdx;" " adox %%r13, %%r14;" " adcx %%rax, %%r14;" " movq %%r14, 48(%0);" " mov $0, %%rax;" " adox %%rdx, %%rax;" " adcx %%r8, %%rax;" " movq %%rax, 56(%0);" /* Line up pointers */ @@ -202,11 +202,11 @@ static inline void fmul(u64 *out, const u64 *f1, const u64 *f2, u64 *tmp) " mulxq 32(%1), %%r8, %%r13;" " xor %3, %3;" " adoxq 0(%1), %%r8;" - " mulxq 40(%1), %%r9, %%r12;" + " mulxq 40(%1), %%r9, %%rbx;" " adcx %%r13, %%r9;" " adoxq 8(%1), %%r9;" " mulxq 48(%1), %%r10, %%r13;" - " adcx %%r12, %%r10;" + " adcx %%rbx, %%r10;" " adoxq 16(%1), %%r10;" " mulxq 56(%1), %%r11, %%rax;" " adcx %%r13, %%r11;" @@ -231,7 +231,7 @@ static inline void fmul(u64 *out, const u64 *f1, const u64 *f2, u64 *tmp) " movq %%r8, 0(%0);" : "+&r" (tmp), "+&r" (f1), "+&r" (out), "+&r" (f2) : - : "%rax", "%rdx", "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "memory", "cc" + : "%rax", "%rdx", "%r8", "%r9", "%r10", "%r11", "%rbx", "%r13", "%r14", "memory", "cc" ); } @@ -248,28 +248,28 @@ static inline void fmul2(u64 *out, const u64 *f1, const u64 *f2, u64 *tmp) " movq 0(%1), %%rdx;" " mulxq 0(%3), %%r8, %%r9;" " xor %%r10, %%r10;" " movq %%r8, 0(%0);" " mulxq 8(%3), %%r10, %%r11;" " adox %%r9, %%r10;" " movq %%r10, 8(%0);" - " mulxq 16(%3), %%r12, %%r13;" " adox %%r11, %%r12;" + " mulxq 16(%3), %%rbx, %%r13;" " adox %%r11, %%rbx;" " mulxq 24(%3), %%r14, %%rdx;" " adox %%r13, %%r14;" " mov $0, %%rax;" " adox %%rdx, %%rax;" /* Compute src1[1] * src2 */ " movq 8(%1), %%rdx;" " mulxq 0(%3), %%r8, %%r9;" " xor %%r10, %%r10;" " adcxq 8(%0), %%r8;" " movq %%r8, 8(%0);" - " mulxq 8(%3), %%r10, %%r11;" " adox %%r9, %%r10;" " adcx %%r12, %%r10;" " movq %%r10, 16(%0);" - " mulxq 16(%3), %%r12, %%r13;" " adox %%r11, %%r12;" " adcx %%r14, %%r12;" " mov $0, %%r8;" + " mulxq 8(%3), %%r10, %%r11;" " adox %%r9, %%r10;" " adcx %%rbx, %%r10;" " movq %%r10, 16(%0);" + " mulxq 16(%3), %%rbx, %%r13;" " adox %%r11, %%rbx;" " adcx %%r14, %%rbx;" " mov $0, %%r8;" " mulxq 24(%3), %%r14, %%rdx;" " adox %%r13, %%r14;" " adcx %%rax, %%r14;" " mov $0, %%rax;" " adox %%rdx, %%rax;" " adcx %%r8, %%rax;" /* Compute src1[2] * src2 */ " movq 16(%1), %%rdx;" " mulxq 0(%3), %%r8, %%r9;" " xor %%r10, %%r10;" " adcxq 16(%0), %%r8;" " movq %%r8, 16(%0);" - " mulxq 8(%3), %%r10, %%r11;" " adox %%r9, %%r10;" " adcx %%r12, %%r10;" " movq %%r10, 24(%0);" - " mulxq 16(%3), %%r12, %%r13;" " adox %%r11, %%r12;" " adcx %%r14, %%r12;" " mov $0, %%r8;" + " mulxq 8(%3), %%r10, %%r11;" " adox %%r9, %%r10;" " adcx %%rbx, %%r10;" " movq %%r10, 24(%0);" + " mulxq 16(%3), %%rbx, %%r13;" " adox %%r11, %%rbx;" " adcx %%r14, %%rbx;" " mov $0, %%r8;" " mulxq 24(%3), %%r14, %%rdx;" " adox %%r13, %%r14;" " adcx %%rax, %%r14;" " mov $0, %%rax;" " adox %%rdx, %%rax;" " adcx %%r8, %%rax;" /* Compute src1[3] * src2 */ " movq 24(%1), %%rdx;" " mulxq 0(%3), %%r8, %%r9;" " xor %%r10, %%r10;" " adcxq 24(%0), %%r8;" " movq %%r8, 24(%0);" - " mulxq 8(%3), %%r10, %%r11;" " adox %%r9, %%r10;" " adcx %%r12, %%r10;" " movq %%r10, 32(%0);" - " mulxq 16(%3), %%r12, %%r13;" " adox %%r11, %%r12;" " adcx %%r14, %%r12;" " movq %%r12, 40(%0);" " mov $0, %%r8;" + " mulxq 8(%3), %%r10, %%r11;" " adox %%r9, %%r10;" " adcx %%rbx, %%r10;" " movq %%r10, 32(%0);" + " mulxq 16(%3), %%rbx, %%r13;" " adox %%r11, %%rbx;" " adcx %%r14, %%rbx;" " movq %%rbx, 40(%0);" " mov $0, %%r8;" " mulxq 24(%3), %%r14, %%rdx;" " adox %%r13, %%r14;" " adcx %%rax, %%r14;" " movq %%r14, 48(%0);" " mov $0, %%rax;" " adox %%rdx, %%rax;" " adcx %%r8, %%rax;" " movq %%rax, 56(%0);" @@ -279,28 +279,28 @@ static inline void fmul2(u64 *out, const u64 *f1, const u64 *f2, u64 *tmp) " movq 32(%1), %%rdx;" " mulxq 32(%3), %%r8, %%r9;" " xor %%r10, %%r10;" " movq %%r8, 64(%0);" " mulxq 40(%3), %%r10, %%r11;" " adox %%r9, %%r10;" " movq %%r10, 72(%0);" - " mulxq 48(%3), %%r12, %%r13;" " adox %%r11, %%r12;" + " mulxq 48(%3), %%rbx, %%r13;" " adox %%r11, %%rbx;" " mulxq 56(%3), %%r14, %%rdx;" " adox %%r13, %%r14;" " mov $0, %%rax;" " adox %%rdx, %%rax;" /* Compute src1[1] * src2 */ " movq 40(%1), %%rdx;" " mulxq 32(%3), %%r8, %%r9;" " xor %%r10, %%r10;" " adcxq 72(%0), %%r8;" " movq %%r8, 72(%0);" - " mulxq 40(%3), %%r10, %%r11;" " adox %%r9, %%r10;" " adcx %%r12, %%r10;" " movq %%r10, 80(%0);" - " mulxq 48(%3), %%r12, %%r13;" " adox %%r11, %%r12;" " adcx %%r14, %%r12;" " mov $0, %%r8;" + " mulxq 40(%3), %%r10, %%r11;" " adox %%r9, %%r10;" " adcx %%rbx, %%r10;" " movq %%r10, 80(%0);" + " mulxq 48(%3), %%rbx, %%r13;" " adox %%r11, %%rbx;" " adcx %%r14, %%rbx;" " mov $0, %%r8;" " mulxq 56(%3), %%r14, %%rdx;" " adox %%r13, %%r14;" " adcx %%rax, %%r14;" " mov $0, %%rax;" " adox %%rdx, %%rax;" " adcx %%r8, %%rax;" /* Compute src1[2] * src2 */ " movq 48(%1), %%rdx;" " mulxq 32(%3), %%r8, %%r9;" " xor %%r10, %%r10;" " adcxq 80(%0), %%r8;" " movq %%r8, 80(%0);" - " mulxq 40(%3), %%r10, %%r11;" " adox %%r9, %%r10;" " adcx %%r12, %%r10;" " movq %%r10, 88(%0);" - " mulxq 48(%3), %%r12, %%r13;" " adox %%r11, %%r12;" " adcx %%r14, %%r12;" " mov $0, %%r8;" + " mulxq 40(%3), %%r10, %%r11;" " adox %%r9, %%r10;" " adcx %%rbx, %%r10;" " movq %%r10, 88(%0);" + " mulxq 48(%3), %%rbx, %%r13;" " adox %%r11, %%rbx;" " adcx %%r14, %%rbx;" " mov $0, %%r8;" " mulxq 56(%3), %%r14, %%rdx;" " adox %%r13, %%r14;" " adcx %%rax, %%r14;" " mov $0, %%rax;" " adox %%rdx, %%rax;" " adcx %%r8, %%rax;" /* Compute src1[3] * src2 */ " movq 56(%1), %%rdx;" " mulxq 32(%3), %%r8, %%r9;" " xor %%r10, %%r10;" " adcxq 88(%0), %%r8;" " movq %%r8, 88(%0);" - " mulxq 40(%3), %%r10, %%r11;" " adox %%r9, %%r10;" " adcx %%r12, %%r10;" " movq %%r10, 96(%0);" - " mulxq 48(%3), %%r12, %%r13;" " adox %%r11, %%r12;" " adcx %%r14, %%r12;" " movq %%r12, 104(%0);" " mov $0, %%r8;" + " mulxq 40(%3), %%r10, %%r11;" " adox %%r9, %%r10;" " adcx %%rbx, %%r10;" " movq %%r10, 96(%0);" + " mulxq 48(%3), %%rbx, %%r13;" " adox %%r11, %%rbx;" " adcx %%r14, %%rbx;" " movq %%rbx, 104(%0);" " mov $0, %%r8;" " mulxq 56(%3), %%r14, %%rdx;" " adox %%r13, %%r14;" " adcx %%rax, %%r14;" " movq %%r14, 112(%0);" " mov $0, %%rax;" " adox %%rdx, %%rax;" " adcx %%r8, %%rax;" " movq %%rax, 120(%0);" /* Line up pointers */ @@ -314,11 +314,11 @@ static inline void fmul2(u64 *out, const u64 *f1, const u64 *f2, u64 *tmp) " mulxq 32(%1), %%r8, %%r13;" " xor %3, %3;" " adoxq 0(%1), %%r8;" - " mulxq 40(%1), %%r9, %%r12;" + " mulxq 40(%1), %%r9, %%rbx;" " adcx %%r13, %%r9;" " adoxq 8(%1), %%r9;" " mulxq 48(%1), %%r10, %%r13;" - " adcx %%r12, %%r10;" + " adcx %%rbx, %%r10;" " adoxq 16(%1), %%r10;" " mulxq 56(%1), %%r11, %%rax;" " adcx %%r13, %%r11;" @@ -347,11 +347,11 @@ static inline void fmul2(u64 *out, const u64 *f1, const u64 *f2, u64 *tmp) " mulxq 96(%1), %%r8, %%r13;" " xor %3, %3;" " adoxq 64(%1), %%r8;" - " mulxq 104(%1), %%r9, %%r12;" + " mulxq 104(%1), %%r9, %%rbx;" " adcx %%r13, %%r9;" " adoxq 72(%1), %%r9;" " mulxq 112(%1), %%r10, %%r13;" - " adcx %%r12, %%r10;" + " adcx %%rbx, %%r10;" " adoxq 80(%1), %%r10;" " mulxq 120(%1), %%r11, %%rax;" " adcx %%r13, %%r11;" @@ -376,7 +376,7 @@ static inline void fmul2(u64 *out, const u64 *f1, const u64 *f2, u64 *tmp) " movq %%r8, 32(%0);" : "+&r" (tmp), "+&r" (f1), "+&r" (out), "+&r" (f2) : - : "%rax", "%rdx", "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "memory", "cc" + : "%rax", "%rdx", "%r8", "%r9", "%r10", "%r11", "%rbx", "%r13", "%r14", "memory", "cc" ); } @@ -388,11 +388,11 @@ static inline void fmul_scalar(u64 *out, const u64 *f1, u64 f2) asm volatile( /* Compute the raw multiplication of f1*f2 */ " mulxq 0(%2), %%r8, %%rcx;" /* f1[0]*f2 */ - " mulxq 8(%2), %%r9, %%r12;" /* f1[1]*f2 */ + " mulxq 8(%2), %%r9, %%rbx;" /* f1[1]*f2 */ " add %%rcx, %%r9;" " mov $0, %%rcx;" " mulxq 16(%2), %%r10, %%r13;" /* f1[2]*f2 */ - " adcx %%r12, %%r10;" + " adcx %%rbx, %%r10;" " mulxq 24(%2), %%r11, %%rax;" /* f1[3]*f2 */ " adcx %%r13, %%r11;" " adcx %%rcx, %%rax;" @@ -419,7 +419,7 @@ static inline void fmul_scalar(u64 *out, const u64 *f1, u64 f2) " movq %%r8, 0(%1);" : "+&r" (f2_r) : "r" (out), "r" (f1) - : "%rax", "%rcx", "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "memory", "cc" + : "%rax", "%rcx", "%r8", "%r9", "%r10", "%r11", "%rbx", "%r13", "memory", "cc" ); } @@ -520,8 +520,8 @@ static inline void fsqr(u64 *out, const u64 *f, u64 *tmp) " mulxq 16(%1), %%r9, %%r10;" " adcx %%r14, %%r9;" /* f[2]*f[0] */ " mulxq 24(%1), %%rax, %%rcx;" " adcx %%rax, %%r10;" /* f[3]*f[0] */ " movq 24(%1), %%rdx;" /* f[3] */ - " mulxq 8(%1), %%r11, %%r12;" " adcx %%rcx, %%r11;" /* f[1]*f[3] */ - " mulxq 16(%1), %%rax, %%r13;" " adcx %%rax, %%r12;" /* f[2]*f[3] */ + " mulxq 8(%1), %%r11, %%rbx;" " adcx %%rcx, %%r11;" /* f[1]*f[3] */ + " mulxq 16(%1), %%rax, %%r13;" " adcx %%rax, %%rbx;" /* f[2]*f[3] */ " movq 8(%1), %%rdx;" " adcx %%r15, %%r13;" /* f1 */ " mulxq 16(%1), %%rax, %%rcx;" " mov $0, %%r14;" /* f[2]*f[1] */ @@ -531,12 +531,12 @@ static inline void fsqr(u64 *out, const u64 *f, u64 *tmp) " adcx %%r8, %%r8;" " adox %%rcx, %%r11;" " adcx %%r9, %%r9;" - " adox %%r15, %%r12;" + " adox %%r15, %%rbx;" " adcx %%r10, %%r10;" " adox %%r15, %%r13;" " adcx %%r11, %%r11;" " adox %%r15, %%r14;" - " adcx %%r12, %%r12;" + " adcx %%rbx, %%rbx;" " adcx %%r13, %%r13;" " adcx %%r14, %%r14;" @@ -549,7 +549,7 @@ static inline void fsqr(u64 *out, const u64 *f, u64 *tmp) " adcx %%rcx, %%r10;" " movq %%r10, 24(%0);" " movq 16(%1), %%rdx;" " mulx %%rdx, %%rax, %%rcx;" /* f[2]^2 */ " adcx %%rax, %%r11;" " movq %%r11, 32(%0);" - " adcx %%rcx, %%r12;" " movq %%r12, 40(%0);" + " adcx %%rcx, %%rbx;" " movq %%rbx, 40(%0);" " movq 24(%1), %%rdx;" " mulx %%rdx, %%rax, %%rcx;" /* f[3]^2 */ " adcx %%rax, %%r13;" " movq %%r13, 48(%0);" " adcx %%rcx, %%r14;" " movq %%r14, 56(%0);" @@ -565,11 +565,11 @@ static inline void fsqr(u64 *out, const u64 *f, u64 *tmp) " mulxq 32(%1), %%r8, %%r13;" " xor %%rcx, %%rcx;" " adoxq 0(%1), %%r8;" - " mulxq 40(%1), %%r9, %%r12;" + " mulxq 40(%1), %%r9, %%rbx;" " adcx %%r13, %%r9;" " adoxq 8(%1), %%r9;" " mulxq 48(%1), %%r10, %%r13;" - " adcx %%r12, %%r10;" + " adcx %%rbx, %%r10;" " adoxq 16(%1), %%r10;" " mulxq 56(%1), %%r11, %%rax;" " adcx %%r13, %%r11;" @@ -594,7 +594,7 @@ static inline void fsqr(u64 *out, const u64 *f, u64 *tmp) " movq %%r8, 0(%0);" : "+&r" (tmp), "+&r" (f), "+&r" (out) : - : "%rax", "%rcx", "%rdx", "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15", "memory", "cc" + : "%rax", "%rcx", "%rdx", "%r8", "%r9", "%r10", "%r11", "%rbx", "%r13", "%r14", "%r15", "memory", "cc" ); } @@ -611,8 +611,8 @@ static inline void fsqr2(u64 *out, const u64 *f, u64 *tmp) " mulxq 16(%1), %%r9, %%r10;" " adcx %%r14, %%r9;" /* f[2]*f[0] */ " mulxq 24(%1), %%rax, %%rcx;" " adcx %%rax, %%r10;" /* f[3]*f[0] */ " movq 24(%1), %%rdx;" /* f[3] */ - " mulxq 8(%1), %%r11, %%r12;" " adcx %%rcx, %%r11;" /* f[1]*f[3] */ - " mulxq 16(%1), %%rax, %%r13;" " adcx %%rax, %%r12;" /* f[2]*f[3] */ + " mulxq 8(%1), %%r11, %%rbx;" " adcx %%rcx, %%r11;" /* f[1]*f[3] */ + " mulxq 16(%1), %%rax, %%r13;" " adcx %%rax, %%rbx;" /* f[2]*f[3] */ " movq 8(%1), %%rdx;" " adcx %%r15, %%r13;" /* f1 */ " mulxq 16(%1), %%rax, %%rcx;" " mov $0, %%r14;" /* f[2]*f[1] */ @@ -622,12 +622,12 @@ static inline void fsqr2(u64 *out, const u64 *f, u64 *tmp) " adcx %%r8, %%r8;" " adox %%rcx, %%r11;" " adcx %%r9, %%r9;" - " adox %%r15, %%r12;" + " adox %%r15, %%rbx;" " adcx %%r10, %%r10;" " adox %%r15, %%r13;" " adcx %%r11, %%r11;" " adox %%r15, %%r14;" - " adcx %%r12, %%r12;" + " adcx %%rbx, %%rbx;" " adcx %%r13, %%r13;" " adcx %%r14, %%r14;" @@ -640,7 +640,7 @@ static inline void fsqr2(u64 *out, const u64 *f, u64 *tmp) " adcx %%rcx, %%r10;" " movq %%r10, 24(%0);" " movq 16(%1), %%rdx;" " mulx %%rdx, %%rax, %%rcx;" /* f[2]^2 */ " adcx %%rax, %%r11;" " movq %%r11, 32(%0);" - " adcx %%rcx, %%r12;" " movq %%r12, 40(%0);" + " adcx %%rcx, %%rbx;" " movq %%rbx, 40(%0);" " movq 24(%1), %%rdx;" " mulx %%rdx, %%rax, %%rcx;" /* f[3]^2 */ " adcx %%rax, %%r13;" " movq %%r13, 48(%0);" " adcx %%rcx, %%r14;" " movq %%r14, 56(%0);" @@ -651,8 +651,8 @@ static inline void fsqr2(u64 *out, const u64 *f, u64 *tmp) " mulxq 48(%1), %%r9, %%r10;" " adcx %%r14, %%r9;" /* f[2]*f[0] */ " mulxq 56(%1), %%rax, %%rcx;" " adcx %%rax, %%r10;" /* f[3]*f[0] */ " movq 56(%1), %%rdx;" /* f[3] */ - " mulxq 40(%1), %%r11, %%r12;" " adcx %%rcx, %%r11;" /* f[1]*f[3] */ - " mulxq 48(%1), %%rax, %%r13;" " adcx %%rax, %%r12;" /* f[2]*f[3] */ + " mulxq 40(%1), %%r11, %%rbx;" " adcx %%rcx, %%r11;" /* f[1]*f[3] */ + " mulxq 48(%1), %%rax, %%r13;" " adcx %%rax, %%rbx;" /* f[2]*f[3] */ " movq 40(%1), %%rdx;" " adcx %%r15, %%r13;" /* f1 */ " mulxq 48(%1), %%rax, %%rcx;" " mov $0, %%r14;" /* f[2]*f[1] */ @@ -662,12 +662,12 @@ static inline void fsqr2(u64 *out, const u64 *f, u64 *tmp) " adcx %%r8, %%r8;" " adox %%rcx, %%r11;" " adcx %%r9, %%r9;" - " adox %%r15, %%r12;" + " adox %%r15, %%rbx;" " adcx %%r10, %%r10;" " adox %%r15, %%r13;" " adcx %%r11, %%r11;" " adox %%r15, %%r14;" - " adcx %%r12, %%r12;" + " adcx %%rbx, %%rbx;" " adcx %%r13, %%r13;" " adcx %%r14, %%r14;" @@ -680,7 +680,7 @@ static inline void fsqr2(u64 *out, const u64 *f, u64 *tmp) " adcx %%rcx, %%r10;" " movq %%r10, 88(%0);" " movq 48(%1), %%rdx;" " mulx %%rdx, %%rax, %%rcx;" /* f[2]^2 */ " adcx %%rax, %%r11;" " movq %%r11, 96(%0);" - " adcx %%rcx, %%r12;" " movq %%r12, 104(%0);" + " adcx %%rcx, %%rbx;" " movq %%rbx, 104(%0);" " movq 56(%1), %%rdx;" " mulx %%rdx, %%rax, %%rcx;" /* f[3]^2 */ " adcx %%rax, %%r13;" " movq %%r13, 112(%0);" " adcx %%rcx, %%r14;" " movq %%r14, 120(%0);" @@ -694,11 +694,11 @@ static inline void fsqr2(u64 *out, const u64 *f, u64 *tmp) " mulxq 32(%1), %%r8, %%r13;" " xor %%rcx, %%rcx;" " adoxq 0(%1), %%r8;" - " mulxq 40(%1), %%r9, %%r12;" + " mulxq 40(%1), %%r9, %%rbx;" " adcx %%r13, %%r9;" " adoxq 8(%1), %%r9;" " mulxq 48(%1), %%r10, %%r13;" - " adcx %%r12, %%r10;" + " adcx %%rbx, %%r10;" " adoxq 16(%1), %%r10;" " mulxq 56(%1), %%r11, %%rax;" " adcx %%r13, %%r11;" @@ -727,11 +727,11 @@ static inline void fsqr2(u64 *out, const u64 *f, u64 *tmp) " mulxq 96(%1), %%r8, %%r13;" " xor %%rcx, %%rcx;" " adoxq 64(%1), %%r8;" - " mulxq 104(%1), %%r9, %%r12;" + " mulxq 104(%1), %%r9, %%rbx;" " adcx %%r13, %%r9;" " adoxq 72(%1), %%r9;" " mulxq 112(%1), %%r10, %%r13;" - " adcx %%r12, %%r10;" + " adcx %%rbx, %%r10;" " adoxq 80(%1), %%r10;" " mulxq 120(%1), %%r11, %%rax;" " adcx %%r13, %%r11;" @@ -756,7 +756,7 @@ static inline void fsqr2(u64 *out, const u64 *f, u64 *tmp) " movq %%r8, 32(%0);" : "+&r" (tmp), "+&r" (f), "+&r" (out) : - : "%rax", "%rcx", "%rdx", "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15", "memory", "cc" + : "%rax", "%rcx", "%rdx", "%r8", "%r9", "%r10", "%r11", "%rbx", "%r13", "%r14", "%r15", "memory", "cc" ); } -- 2.25.0
