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Handle INCX=0,INCY=0 case

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Fixes #1575 (sswap/dswap failing the swap utest on x86) as suggested by atsampson.
This commit is contained in:
Martin Kroeker
2018-05-31 12:52:04 +02:00
committed by GitHub
parent f5959f2543
commit d1b7be14aa
1 changed files with 8 additions and 0 deletions
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8
kernel/x86/swap.S
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@@ -138,6 +138,14 @@
/* INCX != 1 or INCY != 1 */
.L14:
cmpl $0, %ebx
jne .L141
cmpl $0, %ecx
jne .L141
/* INCX == 0 and INCY == 0 */
jmp .L27
.L141
movl %edx, %eax
sarl $2, %eax
jle .L28