fixed #4 csrot returned the wrong result when incx==incy==0.

2011-02-16 23:39:43 +08:00 · 2011-02-16 23:39:43 +08:00 · c5852d4e30
parent c79696cc61
commit c5852d4e30
1 changed files with 4 additions and 0 deletions
--- a/kernel/x86_64/zrot_sse.S
+++ b/kernel/x86_64/zrot_sse.S
@ -1523,6 +1523,10 @@

 .L50:
 	movq	N,  %rax
+	cmpq	$0, INCX
+	je  .L56
+	cmpq	$0, INCY
+	je  .L56
 	sarq	$2, %rax
 	jle	.L55
 	ALIGN_3