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New Contributor II
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ippsFind bug

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__declspec( align(16) ) BYTE pbmem[32] = {
0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55,
0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55,
0x55, 0x55, 0x55, 0x55, 0x00, 0x55, 0x55, 0x55,
0x55, 0x00, 0x00, 0x01, 0xBA, 0x55, 0x55, 0x55
};
BYTE pbcmp[ 4 ] = { 0x00, 0x00, 0x01, 0xBA };
int Index;
ippsFind_8u( pbmem, 27, pbcmp, 4, &Index );
returns Index = 25, but a correct answer is -1 (25+4=29 > 27 - points to out of range memory)
tested onCore2 Quad Q9300,Core i7 870
ippcore-7.0.dll version: 7,0,205,1015
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Accepted Solutions
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Moderator
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the issue is reproduced on SNB system:
ippsg9-7.0.dll 7.0 build 205.68 7.0.205.1067
Index == 25
Here is a bug tracking number for your reference:
DPD200169895.
I will inform you once a new update becomes available.
--Gennady

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5 Replies
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Moderator
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I didn't reproduce the issue:
Checked with 7.0 update 5:

ippsv8-7.0.dll 7.0 build 205.58 7.0.205.1058
Index == -1


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New Contributor II
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I have renewed ipp to 7.0 update 5, ippGetLibVersion() returns: 7.0 build 205.68; 7.0.205.1032.
And also check on the older computer.
Got the following results (x86):
25 on Core2 Quad Q9300 (ippchp8-7.0.dll)
25 on Core i7 860 (ippchp8-7.0.dll)
-1 on Pentium 4 630 (ippchw7-7.0.dll)
code:
__declspec( align(64) ) BYTE pbmem[32] = {
0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55,
0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55,
0x55, 0x55, 0x55, 0x55, 0x00, 0x55, 0x55, 0x55,
0x55, 0x00, 0x00, 0x01, 0xBA, 0x55, 0x55, 0x55
};
__declspec( align(64) ) BYTE pbcmp[ 4 ] = { 0x00, 0x00, 0x01, 0xBA };
int Index;
ippsFind_8u( pbmem, 27, pbcmp, 4, &Index );
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Highlighted
Moderator
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Ok, I will check on i7 system. it looks like the next problem with dispatching code.
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Highlighted
Moderator
4 Views
the issue is reproduced on SNB system:
ippsg9-7.0.dll 7.0 build 205.68 7.0.205.1067
Index == 25
Here is a bug tracking number for your reference:
DPD200169895.
I will inform you once a new update becomes available.
--Gennady

View solution in original post

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Highlighted
New Contributor II
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Ok. Thanks!
Can you take a look on a one more problem:software.intel.com/en-us/forums/showthread.php?t=86463
This is probably not applicable to your area of responsibility, but nobody answers mein the forum "AVX and CPU Instrutstions".
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