arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires more registers than available
Hi Jason,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
master
head: 0a50438c84363bd37fe18fe432888ae9a074dcab
commit: 07b586fe06625b0b610dc3d3a969c51913d143d4 crypto: x86/curve25519 -
replace with formally verified implementation
date: 1 year, 2 months ago
config: x86_64-randconfig-a012-20210406 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project
2760a808b9916a2839513b7fd7314a464f52481e)
reproduce (this is a W=1 build):
wget
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
#
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=07b586fe06625b0b610dc3d3a969c51913d143d4
git remote add linus
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 07b586fe06625b0b610dc3d3a969c51913d143d4
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot
All errors (new ones prefixed by >>):
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
" movq 0(%1), %%rdx;"
/* f[0] */
^
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
19 errors generated.
vim +518 arch/x86/crypto/curve25519-x86_64.c
509
510 /* Computes the square of a field element: out <- f * f
511 * Uses the 8-element buffer tmp for intermediate results */
512 static inline void fsqr(u64 *out, const u64 *f, u64 *tmp)
513 {
514 asm volatile(
515 /* Compute the raw multiplication: tmp <- f * f */
516
517 /* Step 1: Compute all partial products */
> 518 " movq 0(%1), %%rdx;"
> /* f[0] */
519 " mulxq 8(%1), %%r8, %%r14;" " xor %%r15,
%%r15;" /* f[1]*f[0] */
520 " mulxq 16(%1), %%r9, %%r10;" " adcx %%r14,
%%r9;" /* f[2]*f[0] */
521 " mulxq 24(%1), %%rax, %%rcx;"" adcx %%rax,
%%r10;"/* f[3]*f[0] */
522 " movq 24(%1), %%rdx;"
/* f[3] */
523 " mulxq
arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires more registers than available
Hi Jason,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
master
head: 8b12a62a4e3ed4ae99c715034f557eb391d6b196
commit: 07b586fe06625b0b610dc3d3a969c51913d143d4 crypto: x86/curve25519 -
replace with formally verified implementation
date: 1 year, 1 month ago
config: x86_64-randconfig-a014-20210319 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project
fcc1ce00931751ac02498986feb37744e9ace8de)
reproduce (this is a W=1 build):
wget
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
#
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=07b586fe06625b0b610dc3d3a969c51913d143d4
git remote add linus
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 07b586fe06625b0b610dc3d3a969c51913d143d4
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot
All errors (new ones prefixed by >>):
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
" movq 0(%1), %%rdx;"
/* f[0] */
^
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
19 errors generated.
vim +518 arch/x86/crypto/curve25519-x86_64.c
509
510 /* Computes the square of a field element: out <- f * f
511 * Uses the 8-element buffer tmp for intermediate results */
512 static inline void fsqr(u64 *out, const u64 *f, u64 *tmp)
513 {
514 asm volatile(
515 /* Compute the raw multiplication: tmp <- f * f */
516
517 /* Step 1: Compute all partial products */
> 518 " movq 0(%1), %%rdx;"
> /* f[0] */
519 " mulxq 8(%1), %%r8, %%r14;" " xor %%r15,
%%r15;" /* f[1]*f[0] */
520 " mulxq 16(%1), %%r9, %%r10;" " adcx %%r14,
%%r9;" /* f[2]*f[0] */
521 " mulxq 24(%1), %%rax, %%rcx;"" adcx %%rax,
%%r10;"/* f[3]*f[0] */
522 " movq 24(%1), %%rdx;"
/* f[3] */
523 " mulxq
arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires more registers than available
Hi Jason,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
master
head: 0aea6d5c5be33ce94c16f9ab2f64de1f481f424b
commit: 07b586fe06625b0b610dc3d3a969c51913d143d4 crypto: x86/curve25519 -
replace with formally verified implementation
date: 5 months ago
config: x86_64-randconfig-a003-20200712 (attached as .config)
compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project
02946de3802d3bc65bc9f2eb9b8d4969b5a7add8)
reproduce (this is a W=1 build):
wget
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
git checkout 07b586fe06625b0b610dc3d3a969c51913d143d4
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot
All errors (new ones prefixed by >>):
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
" movq 0(%1), %%rdx;"
/* f[0] */
^
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
9 errors generated.
vim +518 arch/x86/crypto/curve25519-x86_64.c
509
510 /* Computes the square of a field element: out <- f * f
511 * Uses the 8-element buffer tmp for intermediate results */
512 static inline void fsqr(u64 *out, const u64 *f, u64 *tmp)
513 {
514 asm volatile(
515 /* Compute the raw multiplication: tmp <- f * f */
516
517 /* Step 1: Compute all partial products */
> 518 " movq 0(%1), %%rdx;"
> /* f[0] */
519 " mulxq 8(%1), %%r8, %%r14;" " xor %%r15,
%%r15;" /* f[1]*f[0] */
520 " mulxq 16(%1), %%r9, %%r10;" " adcx %%r14,
%%r9;" /* f[2]*f[0] */
521 " mulxq 24(%1), %%rax, %%rcx;"" adcx %%rax,
%%r10;"/* f[3]*f[0] */
522 " movq 24(%1), %%rdx;"
/* f[3] */
523 " mulxq 8(%1), %%r11, %%r12;" " adcx %%rcx,
%%r11;"/* f[1]*f[3] */
524 " mulxq 16(%1), %%rax, %%r13;"" adcx %%rax,
%%r12;"/* f[2]*f[3] */
525 " movq 8(%1), %%rdx;" " adcx %%r15,
%%r13;"/* f1 */
526 " mulxq 16(%1), %%rax, %%rcx;"" mov $0, %%r14;"
/* f[2]*f[1] */
527
528 /* Step 2: Compute two parallel carry chains */
529 " xor %%r15, %%r15;"
530 " adox %%rax, %%r10;"
531 " adcx %%r8, %%r8;"
532 " adox %%rcx, %%r11;"
533 " adcx %%r9, %%r9;"
534 " adox %%r15, %%r12;"
535 " adcx %%r10, %%r10;"
536 " adox %%r15, %%r13;"
537 " adcx %%r11, %%r11;"
538 " adox %%r15, %%r14;"
539 " adcx %%r12, %%r12;"
540 " adcx %%r13, %%r13;"
541 " adcx %%r14, %%r14;"
542
543 /* Step 3: Compute intermediate squares */
544 " movq 0(%1), %%rdx;" " mulx %%rdx, %%rax,
%%rcx;"/* f[0]^2 */
545 " movq %%rax, 0(%0);
arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires more registers than available
Hi Jason,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
master
head: 35e884f89df4c48566d745dc5a97a0d058d04263
commit: 07b586fe06625b0b610dc3d3a969c51913d143d4 crypto: x86/curve25519 -
replace with formally verified implementation
date: 5 months ago
config: x86_64-randconfig-a002-20200705 (attached as .config)
compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project
e359ab1eca5727ce4c688bb49323b8a09478d61c)
reproduce (this is a W=1 build):
wget
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
git checkout 07b586fe06625b0b610dc3d3a969c51913d143d4
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot
All errors (new ones prefixed by >>):
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
" movq 0(%1), %%rdx;"
/* f[0] */
^
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
arch/x86/crypto/curve25519-x86_64.c:609:3: error: inline assembly requires
more registers than available
" movq 0(%1), %%rdx;"
/* f[0] */
^
arch/x86/crypto/curve25519-x86_64.c:609:3: error: inline assembly requires
more registers than available
11 errors generated.
vim +518 arch/x86/crypto/curve25519-x86_64.c
509
510 /* Computes the square of a field element: out <- f * f
511 * Uses the 8-element buffer tmp for intermediate results */
512 static inline void fsqr(u64 *out, const u64 *f, u64 *tmp)
513 {
514 asm volatile(
515 /* Compute the raw multiplication: tmp <- f * f */
516
517 /* Step 1: Compute all partial products */
> 518 " movq 0(%1), %%rdx;"
> /* f[0] */
519 " mulxq 8(%1), %%r8, %%r14;" " xor %%r15,
%%r15;" /* f[1]*f[0] */
520 " mulxq 16(%1), %%r9, %%r10;" " adcx %%r14,
%%r9;" /* f[2]*f[0] */
521 " mulxq 24(%1), %%rax, %%rcx;"" adcx %%rax,
%%r10;"/* f[3]*f[0] */
522 " movq 24(%1), %%rdx;"
/* f[3] */
523 " mulxq 8(%1), %%r11, %%r12;" " adcx %%rcx,
%%r11;"/* f[1]*f[3] */
524 " mulxq 16(%1), %%rax, %%r13;"" adcx %%rax,
%%r12;"/* f[2]*f[3] */
525 " movq 8(%1), %%rdx;" " adcx %%r15,
%%r13;"/* f1 */
526 " mulxq 16(%1), %%rax, %%rcx;"" mov $0, %%r14;"
/* f[2]*f[1] */
527
528 /* Step 2: Compute two parallel carry chains */
529 " xor %%r15, %%r15;"
530 " adox %%rax, %%r10;"
531 " adcx %%r8, %%r8;"
532 " adox %%rcx, %%r11;"
533 " adcx %%r9, %%r9;"
534 " adox %%r15, %%r12;"
535 " adcx %%r10, %%r10;"
536 " adox %%r15, %%r13;"
537 " adcx %%r11, %%r11;"
538 " adox %%r15, %%r14;"
539 " adcx %%r12, %%r12;"
540 " adcx %%r13,
arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires more registers than available
Hi Jason,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
master
head: 1b5044021070efa3259f3e9548dc35d1eb6aa844
commit: 07b586fe06625b0b610dc3d3a969c51913d143d4 crypto: x86/curve25519 -
replace with formally verified implementation
date: 4 months ago
config: x86_64-randconfig-r011-20200618 (attached as .config)
compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project
487ca07fcc75d52755c9fe2ee05bcb3b6c44)
reproduce (this is a W=1 build):
wget
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
git checkout 07b586fe06625b0b610dc3d3a969c51913d143d4
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot
All errors (new ones prefixed by >>):
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
" movq 0(%1), %%rdx;"
/* f[0] */
^
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
9 errors generated.
vim +518 arch/x86/crypto/curve25519-x86_64.c
509
510 /* Computes the square of a field element: out <- f * f
511 * Uses the 8-element buffer tmp for intermediate results */
512 static inline void fsqr(u64 *out, const u64 *f, u64 *tmp)
513 {
514 asm volatile(
515 /* Compute the raw multiplication: tmp <- f * f */
516
517 /* Step 1: Compute all partial products */
> 518 " movq 0(%1), %%rdx;"
> /* f[0] */
519 " mulxq 8(%1), %%r8, %%r14;" " xor %%r15,
%%r15;" /* f[1]*f[0] */
520 " mulxq 16(%1), %%r9, %%r10;" " adcx %%r14,
%%r9;" /* f[2]*f[0] */
521 " mulxq 24(%1), %%rax, %%rcx;"" adcx %%rax,
%%r10;"/* f[3]*f[0] */
522 " movq 24(%1), %%rdx;"
/* f[3] */
523 " mulxq 8(%1), %%r11, %%r12;" " adcx %%rcx,
%%r11;"/* f[1]*f[3] */
524 " mulxq 16(%1), %%rax, %%r13;"" adcx %%rax,
%%r12;"/* f[2]*f[3] */
525 " movq 8(%1), %%rdx;" " adcx %%r15,
%%r13;"/* f1 */
526 " mulxq 16(%1), %%rax, %%rcx;"" mov $0, %%r14;"
/* f[2]*f[1] */
527
528 /* Step 2: Compute two parallel carry chains */
529 " xor %%r15, %%r15;"
530 " adox %%rax, %%r10;"
531 " adcx %%r8, %%r8;"
532 " adox %%rcx, %%r11;"
533 " adcx %%r9, %%r9;"
534 " adox %%r15, %%r12;"
535 " adcx %%r10, %%r10;"
536 " adox %%r15, %%r13;"
537 " adcx %%r11, %%r11;"
538 " adox %%r15, %%r14;"
539 " adcx %%r12, %%r12;"
540 " adcx %%r13, %%r13;"
541 " adcx %%r14, %%r14;"
542
543 /* Step 3: Compute intermediate squares */
544 " movq 0(%1), %%rdx;" " mulx %%rdx, %%rax,
%%rcx;"/* f[0]^2 */
545 " movq %%rax, 0(%0);
arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires more registers than available
Hi Jason,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
master
head: d6f9469a03d832dcd17041ed67774ffb5f3e73b3
commit: 07b586fe06625b0b610dc3d3a969c51913d143d4 crypto: x86/curve25519 -
replace with formally verified implementation
date: 4 months ago
config: x86_64-randconfig-r012-20200603 (attached as .config)
compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project
16437992cac249f6fe1efd392d20e3469b47e39e)
reproduce (this is a W=1 build):
wget
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
git checkout 07b586fe06625b0b610dc3d3a969c51913d143d4
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot
All errors (new ones prefixed by >>, old ones prefixed by <<):
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
" movq 0(%1), %%rdx;" /* f[0] */
^
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
arch/x86/crypto/curve25519-x86_64.c:609:3: error: inline assembly requires more
registers than available
" movq 0(%1), %%rdx;" /* f[0] */
^
arch/x86/crypto/curve25519-x86_64.c:609:3: error: inline assembly requires more
registers than available
11 errors generated.
vim +518 arch/x86/crypto/curve25519-x86_64.c
509
510 /* Computes the square of a field element: out <- f * f
511 * Uses the 8-element buffer tmp for intermediate results */
512 static inline void fsqr(u64 *out, const u64 *f, u64 *tmp)
513 {
514 asm volatile(
515 /* Compute the raw multiplication: tmp <- f * f */
516
517 /* Step 1: Compute all partial products */
> 518 " movq 0(%1), %%rdx;"
> /* f[0] */
519 " mulxq 8(%1), %%r8, %%r14;" " xor %%r15,
%%r15;" /* f[1]*f[0] */
520 " mulxq 16(%1), %%r9, %%r10;" " adcx %%r14,
%%r9;" /* f[2]*f[0] */
521 " mulxq 24(%1), %%rax, %%rcx;"" adcx %%rax,
%%r10;"/* f[3]*f[0] */
522 " movq 24(%1), %%rdx;"
/* f[3] */
523 " mulxq 8(%1), %%r11, %%r12;" " adcx %%rcx,
%%r11;"/* f[1]*f[3] */
524 " mulxq 16(%1), %%rax, %%r13;"" adcx %%rax,
%%r12;"/* f[2]*f[3] */
525 " movq 8(%1), %%rdx;" " adcx %%r15,
%%r13;"/* f1 */
526 " mulxq 16(%1), %%rax, %%rcx;"" mov $0, %%r14;"
/* f[2]*f[1] */
527
528 /* Step 2: Compute two parallel carry chains */
529 " xor %%r15, %%r15;"
530 " adox %%rax, %%r10;"
531 " adcx %%r8, %%r8;"
532 " adox %%rcx, %%r11;"
533 " adcx %%r9, %%r9;"
534 " adox %%r15, %%r12;"
535 " adcx %%r10, %%r10;"
536 " adox %%r15, %%r13;"
537 " adcx %%r11, %%r11;"
538 " adox %%r15, %%r14;"
539 " adcx %%r12, %%r12;"
540 " adcx %%r13, %%r13;"
541 " adcx %%r
arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires more registers than available
Hi Jason,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
master
head: b9bbe6ed63b2b9f2c9ee5cbd0f2c946a2723f4ce
commit: 07b586fe06625b0b610dc3d3a969c51913d143d4 crypto: x86/curve25519 -
replace with formally verified implementation
date: 3 months ago
config: x86_64-randconfig-r001-20200518 (attached as .config)
compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project
135b877874fae96b4372c8a3fbfaa8ff44ff86e3)
reproduce:
wget
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
git checkout 07b586fe06625b0b610dc3d3a969c51913d143d4
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot
All errors (new ones prefixed by >>, old ones prefixed by <<):
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
" movq 0(%1), %%rdx;" /* f[0] */
^
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
9 errors generated.
vim +518 arch/x86/crypto/curve25519-x86_64.c
509
510 /* Computes the square of a field element: out <- f * f
511 * Uses the 8-element buffer tmp for intermediate results */
512 static inline void fsqr(u64 *out, const u64 *f, u64 *tmp)
513 {
514 asm volatile(
515 /* Compute the raw multiplication: tmp <- f * f */
516
517 /* Step 1: Compute all partial products */
> 518 " movq 0(%1), %%rdx;"
> /* f[0] */
519 " mulxq 8(%1), %%r8, %%r14;" " xor %%r15,
%%r15;" /* f[1]*f[0] */
520 " mulxq 16(%1), %%r9, %%r10;" " adcx %%r14,
%%r9;" /* f[2]*f[0] */
521 " mulxq 24(%1), %%rax, %%rcx;"" adcx %%rax,
%%r10;"/* f[3]*f[0] */
522 " movq 24(%1), %%rdx;"
/* f[3] */
523 " mulxq 8(%1), %%r11, %%r12;" " adcx %%rcx,
%%r11;"/* f[1]*f[3] */
524 " mulxq 16(%1), %%rax, %%r13;"" adcx %%rax,
%%r12;"/* f[2]*f[3] */
525 " movq 8(%1), %%rdx;" " adcx %%r15,
%%r13;"/* f1 */
526 " mulxq 16(%1), %%rax, %%rcx;"" mov $0, %%r14;"
/* f[2]*f[1] */
527
528 /* Step 2: Compute two parallel carry chains */
529 " xor %%r15, %%r15;"
530 " adox %%rax, %%r10;"
531 " adcx %%r8, %%r8;"
532 " adox %%rcx, %%r11;"
533 " adcx %%r9, %%r9;"
534 " adox %%r15, %%r12;"
535 " adcx %%r10, %%r10;"
536 " adox %%r15, %%r13;"
537 " adcx %%r11, %%r11;"
538 " adox %%r15, %%r14;"
539 " adcx %%r12, %%r12;"
540 " adcx %%r13, %%r13;"
541 " adcx %%r14, %%r14;"
542
543 /* Step 3: Compute intermediate squares */
544 " movq 0(%1), %%rdx;" " mulx %%rdx, %%rax,
%%rcx;"/* f[0]^2 */
545 " movq %%rax, 0(%0);"
546
arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires more registers than available
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
master
head: c45e8bccecaf633480d378daff11e122dfd5e96d
commit: 07b586fe06625b0b610dc3d3a969c51913d143d4 crypto: x86/curve25519 -
replace with formally verified implementation
date: 3 months ago
config: x86_64-randconfig-a002-20200501 (attached as .config)
compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project
1ccde533425a4ba9d379510206ad680ff9702129)
reproduce:
wget
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
git checkout 07b586fe06625b0b610dc3d3a969c51913d143d4
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot
All errors (new ones prefixed by >>):
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
" movq 0(%1), %%rdx;"
/* f[0] */
^
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
>> arch/x86/crypto/curve25519-x86_64.c:518:3: error: inline assembly requires
>> more registers than available
9 errors generated.
vim +518 arch/x86/crypto/curve25519-x86_64.c
509
510 /* Computes the square of a field element: out <- f * f
511 * Uses the 8-element buffer tmp for intermediate results */
512 static inline void fsqr(u64 *out, const u64 *f, u64 *tmp)
513 {
514 asm volatile(
515 /* Compute the raw multiplication: tmp <- f * f */
516
517 /* Step 1: Compute all partial products */
> 518 " movq 0(%1), %%rdx;"
> /* f[0] */
519 " mulxq 8(%1), %%r8, %%r14;" " xor %%r15,
%%r15;" /* f[1]*f[0] */
520 " mulxq 16(%1), %%r9, %%r10;" " adcx %%r14,
%%r9;" /* f[2]*f[0] */
521 " mulxq 24(%1), %%rax, %%rcx;"" adcx %%rax,
%%r10;"/* f[3]*f[0] */
522 " movq 24(%1), %%rdx;"
/* f[3] */
523 " mulxq 8(%1), %%r11, %%r12;" " adcx %%rcx,
%%r11;"/* f[1]*f[3] */
524 " mulxq 16(%1), %%rax, %%r13;"" adcx %%rax,
%%r12;"/* f[2]*f[3] */
525 " movq 8(%1), %%rdx;" " adcx %%r15,
%%r13;"/* f1 */
526 " mulxq 16(%1), %%rax, %%rcx;"" mov $0, %%r14;"
/* f[2]*f[1] */
527
528 /* Step 2: Compute two parallel carry chains */
529 " xor %%r15, %%r15;"
530 " adox %%rax, %%r10;"
531 " adcx %%r8, %%r8;"
532 " adox %%rcx, %%r11;"
533 " adcx %%r9, %%r9;"
534 " adox %%r15, %%r12;"
535 " adcx %%r10, %%r10;"
536 " adox %%r15, %%r13;"
537 " adcx %%r11, %%r11;"
538 " adox %%r15, %%r14;"
539 " adcx %%r12, %%r12;"
540 " adcx %%r13, %%r13;"
541 " adcx %%r14, %%r14;"
542
543 /* Step 3: Compute intermediate squares */
544 " movq 0(%1), %%rdx;" " mulx %%rdx, %%rax,
%%rcx;"/* f[0]^2 */
545 " movq %%rax, 0(%0);"
546 " add %%rcx,
