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Refs #173. Fixed overflow internal buffer bug of gemv_t on x86.

This commit is contained in:
Zhang Xianyi 2012-12-23 21:47:22 +08:00
parent a4ee6f3915
commit fd3046b32a
3 changed files with 163 additions and 36 deletions
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67
kernel/x86/gemv_t_sse.S
View File

@ -89,17 +89,23 @@
#endif
#define STACKSIZE 16
#define ARGS 16
#define M 4 + STACKSIZE(%esp)
#define N 8 + STACKSIZE(%esp)
#define ALPHA 16 + STACKSIZE(%esp)
#define A 20 + STACKSIZE(%esp)
#define STACK_LDA 24 + STACKSIZE(%esp)
#define STACK_X 28 + STACKSIZE(%esp)
#define STACK_INCX 32 + STACKSIZE(%esp)
#define Y 36 + STACKSIZE(%esp)
#define STACK_INCY 40 + STACKSIZE(%esp)
#define BUFFER 44 + STACKSIZE(%esp)
#define M 4 + STACKSIZE+ARGS(%esp)
#define N 8 + STACKSIZE+ARGS(%esp)
#define ALPHA 16 + STACKSIZE+ARGS(%esp)
#define A 20 + STACKSIZE+ARGS(%esp)
#define STACK_LDA 24 + STACKSIZE+ARGS(%esp)
#define STACK_X 28 + STACKSIZE+ARGS(%esp)
#define STACK_INCX 32 + STACKSIZE+ARGS(%esp)
#define Y 36 + STACKSIZE+ARGS(%esp)
#define STACK_INCY 40 + STACKSIZE+ARGS(%esp)
#define BUFFER 44 + STACKSIZE+ARGS(%esp)
#define MMM 0+STACKSIZE(%esp)
#define NN 4+STACKSIZE(%esp)
#define AA 8+STACKSIZE(%esp)
#define LDAX 12+STACKSIZE(%esp)
#define I %eax
#define J %ebx
@ -114,6 +120,7 @@
PROLOGUE
subl $ARGS,%esp
pushl %ebp
pushl %edi
pushl %esi
@ -122,6 +129,37 @@
PROFCODE
movl STACK_LDA, LDA
movl LDA,LDAX # backup LDA
movl N,J
movl J,NN # backup N
movl A,J
movl J,AA # backup A
movl M,J
movl J,MMM # mov M to MMM
.L0t:
xorl J,J
addl $1,J
sall $23,J # J=2^22
subl J,MMM # MMM=MMM-J
movl J,M
jge .L00t
ALIGN_4
movl MMM,%eax
addl J,%eax
jle .L999x
movl %eax,M
.L00t:
movl AA,%eax
movl %eax,A # mov AA to A
movl NN,%eax
movl %eax,N # reset N
movl LDAX, LDA # reset LDA
movl STACK_X, X
movl STACK_INCX, INCX
movl STACK_INCY, INCY
@ -628,10 +666,19 @@
ALIGN_4
.L999:
movl M,J
leal (,J,SIZE),%eax
addl %eax,AA
jmp .L0t
ALIGN_4
.L999x:
popl %ebx
popl %esi
popl %edi
popl %ebp
addl $ARGS,%esp
ret
EPILOGUE

71
kernel/x86/gemv_t_sse2.S
View File

@ -76,18 +76,24 @@
#endif
#define STACKSIZE 16
#define ARGS 16
#define M 4 + STACKSIZE+ARGS(%esp)
#define N 8 + STACKSIZE+ARGS(%esp)
#define ALPHA 16 + STACKSIZE+ARGS(%esp)
#define A 24 + STACKSIZE+ARGS(%esp)
#define STACK_LDA 28 + STACKSIZE+ARGS(%esp)
#define STACK_X 32 + STACKSIZE+ARGS(%esp)
#define STACK_INCX 36 + STACKSIZE+ARGS(%esp)
#define Y 40 + STACKSIZE+ARGS(%esp)
#define STACK_INCY 44 + STACKSIZE+ARGS(%esp)
#define BUFFER 48 + STACKSIZE+ARGS(%esp)
#define MMM 0+STACKSIZE(%esp)
#define AA 4+STACKSIZE(%esp)
#define LDAX 8+STACKSIZE(%esp)
#define NN 12+STACKSIZE(%esp)
#define M 4 + STACKSIZE(%esp)
#define N 8 + STACKSIZE(%esp)
#define ALPHA 16 + STACKSIZE(%esp)
#define A 24 + STACKSIZE(%esp)
#define STACK_LDA 28 + STACKSIZE(%esp)
#define STACK_X 32 + STACKSIZE(%esp)
#define STACK_INCX 36 + STACKSIZE(%esp)
#define Y 40 + STACKSIZE(%esp)
#define STACK_INCY 44 + STACKSIZE(%esp)
#define BUFFER 48 + STACKSIZE(%esp)
#define I %eax
#define J %ebx
@ -101,6 +107,8 @@
PROLOGUE
subl $ARGS,%esp
pushl %ebp
pushl %edi
pushl %esi
@ -108,7 +116,38 @@
PROFCODE
movl STACK_LDA, LDA
movl LDA,LDAX # backup LDA
movl N,J
movl J,NN # backup N
movl A,J
movl J,AA # backup A
movl M,J
movl J,MMM # mov M to MMM
.L0t:
xorl J,J
addl $1,J
sall $22,J # J=2^22
subl J,MMM # MMM=MMM-J
movl J,M
jge .L00t
ALIGN_4
movl MMM,%eax
addl J,%eax
jle .L999x
movl %eax,M
.L00t:
movl AA,%eax
movl %eax,A # mov AA to A
movl NN,%eax
movl %eax,N # reset N
movl LDAX, LDA # reset LDA
movl STACK_X, X
movl STACK_INCX, INCX
movl STACK_INCY, INCY
@ -117,6 +156,7 @@
leal (,INCY, SIZE), INCY
leal (,LDA, SIZE), LDA
subl $-16 * SIZE, A
cmpl $0, N
@ -560,10 +600,19 @@
ALIGN_4
.L999:
movl M,J
leal (,J,SIZE),%eax
addl %eax,AA
jmp .L0t
ALIGN_4
.L999x:
popl %ebx
popl %esi
popl %edi
popl %ebp
addl $ARGS,%esp
ret
EPILOGUE

61
kernel/x86_64/sgemv_t.S
View File

@ -47,7 +47,7 @@
#ifndef WINDOWS_ABI
#define STACKSIZE 64
#define STACKSIZE 128
#define OLD_M %rdi
#define OLD_N %rsi
@ -57,6 +57,10 @@
#define STACK_Y 16 + STACKSIZE(%rsp)
#define STACK_INCY 24 + STACKSIZE(%rsp)
#define STACK_BUFFER 32 + STACKSIZE(%rsp)
#define MMM 56(%rsp)
#define NN 64(%rsp)
#define AA 72(%rsp)
#define LDAX 80(%rsp)
#else
@ -71,6 +75,10 @@
#define STACK_Y 72 + STACKSIZE(%rsp)
#define STACK_INCY 80 + STACKSIZE(%rsp)
#define STACK_BUFFER 88 + STACKSIZE(%rsp)
#defien MMM 216(%rsp)
#defien NN 224(%rsp)
#define AA 232(%rsp)
#define LDAX 240(%rsp)
#endif
@ -127,29 +135,46 @@
movups %xmm14, 192(%rsp)
movups %xmm15, 208(%rsp)
movq OLD_M, M
movq OLD_N, N
movq OLD_A, A
movq OLD_LDA, LDA
movq OLD_M, MMM
movq OLD_N, NN
movq OLD_A, AA
movq OLD_LDA, LDAX
movq OLD_X, X
#else
movq OLD_M, M
movq OLD_N, N
movq OLD_A, A
movq OLD_LDA, LDA
movq OLD_M, MMM
movq OLD_N, NN
movq OLD_A, AA
movq OLD_LDA, LDAX
#endif
movq STACK_INCX, INCX
movq STACK_Y, Y
movq STACK_INCY, INCY
movq STACK_BUFFER, BUFFER
#ifndef WINDOWS_ABI
pshufd $0, %xmm0, ALPHA
#else
pshufd $0, %xmm3, ALPHA
#endif
.L0t:
xorq M,M
addq $1,M
salq $22,M
subq M,MMM
jge .L00t
ALIGN_4
movq MMM,%rax
addq M,%rax
jle .L999x
movq %rax,M
.L00t:
movq LDAX,LDA
movq NN,N
movq AA,A
movq STACK_INCX, INCX
movq STACK_Y, Y
movq STACK_INCY, INCY
movq STACK_BUFFER, BUFFER
leaq (,INCX, SIZE), INCX
leaq (,INCY, SIZE), INCY
leaq (,LDA, SIZE), LDA
@ -6341,6 +6366,12 @@
ALIGN_4
.L999:
leaq (,M,SIZE),%rax
addq %rax,AA
jmp .L0t
ALIGN_4
.L999x:
movq 0(%rsp), %rbx
movq 8(%rsp), %rbp
movq 16(%rsp), %r12