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Fix crash in sgemm SSE/nano kernel on x86_64 #2049

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Mar 7, 2019
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2 changes: 1 addition & 1 deletion kernel/x86_64/gemm_kernel_4x8_nano.S
Original file line number Diff line number Diff line change
Expand Up @@ -135,7 +135,7 @@
#endif

movq %rsp, %rbx # save old stack
subq $128 + LOCAL_BUFFER_SIZE, %rsp
subq $256 + LOCAL_BUFFER_SIZE, %rsp
andq $-4096, %rsp # align stack

STACK_TOUCHING
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2 changes: 1 addition & 1 deletion kernel/x86_64/gemm_kernel_8x4_sse.S
Original file line number Diff line number Diff line change
Expand Up @@ -383,7 +383,7 @@
EMMS

movq %rsp, %rbx # save old stack
subq $128 + LOCAL_BUFFER_SIZE, %rsp
subq $256 + LOCAL_BUFFER_SIZE, %rsp
andq $-4096, %rsp # align stack

STACK_TOUCHING
Expand Down