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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - tools/llvm-mca/ARM/cortex-a57-carryover.s test fails with -m32 -march=znver2 -O2"
href="https://bugs.llvm.org/show_bug.cgi?id=51392">51392</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>tools/llvm-mca/ARM/cortex-a57-carryover.s test fails with -m32 -march=znver2 -O2
</td>
</tr>
<tr>
<th>Product</th>
<td>new-bugs
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>new bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>mgorny@gentoo.org
</td>
</tr>
<tr>
<th>CC</th>
<td>htmldeveloper@gmail.com, llvm-bugs@lists.llvm.org
</td>
</tr>
<tr>
<th>Blocks</th>
<td>51236
</td>
</tr></table>
<p>
<div>
<pre>When building 32-bit version of LLVM with -march=znver2 -O2 (-Os doesn't seem
to be affected) with gcc 11.2.0, I'm getttng the following test failure. It
seems that the numbers are rounded incorrectly.
i.e. instead of:
10 4.6 1.4 2.0 <total>
I'm getting:
10 4.5 1.4 1.9 <total>
Full output:
FAIL: LLVM :: tools/llvm-mca/ARM/cortex-a57-carryover.s (10 of 15)
******************** TEST 'LLVM :: tools/llvm-mca/ARM/cortex-a57-carryover.s'
FAILED ********************
Script:
--
: 'RUN: at line 2'; /home/mgorny/git/llvm-project/build/bin/llvm-mca
-mtriple=thumbv7-gnueabihf-linux -mcpu=cortex-a57 -timeline -iterations=10 <
/home/mgorny/git/llvm-project/llvm/test/tools/llvm-mca/ARM/cortex-a57-carryover.s
| /home/mgorny/git/llvm-project/build/bin/FileCheck
/home/mgorny/git/llvm-project/llvm/test/tools/llvm-mca/ARM/cortex-a57-carryover.s
--
Exit Code: 1
Command Output (stderr):
--
+ : 'RUN: at line 2'
+ /home/mgorny/git/llvm-project/build/bin/llvm-mca
-mtriple=thumbv7-gnueabihf-linux -mcpu=cortex-a57 -timeline -iterations=10
+ /home/mgorny/git/llvm-project/build/bin/FileCheck
/home/mgorny/git/llvm-project/llvm/test/tools/llvm-mca/ARM/cortex-a57-carryover.s
/home/mgorny/git/llvm-project/llvm/test/tools/llvm-mca/ARM/cortex-a57-carryover.s:85:15:
error: CHECK-NEXT: expected string not found in input
# CHECK-NEXT: 10 4.6 1.4 2.0 <total>
^
<stdin>:80:22: note: scanning from here
1. 10 3.6 0.0 3.9 nop
^
<stdin>:81:2: note: possible intended match here
10 4.5 1.4 1.9 <total>
^
Input file: <stdin>
Check file:
/home/mgorny/git/llvm-project/llvm/test/tools/llvm-mca/ARM/cortex-a57-carryover.s
-dump-input=help explains the following input dump.
Input was:
<<<<<<
.
.
.
75: [2]: Average time spent waiting in a scheduler's queue while
ready
76: [3]: Average time elapsed from WB until retire stage
77:
78: [0] [1] [2] [3]
79: 0. 10 5.5 2.7 0.0 pop {r3, r4, r5, r6, r7, pc}
80: 1. 10 3.6 0.0 3.9 nop
next:85'0 X error: no match found
81: 10 4.5 1.4 1.9 <total>
next:85'0 ~~~~~~~~~~~~~~~~~~~~~~~~
next:85'1 ? possible intended match
<span class="quote">>>>>>></span >
--
********************</pre>
</div>
</p>
<div id="referenced">
<hr style="border: 1px dashed #969696">
<b>Referenced Bugs:</b>
<ul>
<li>
[<a class="bz_bug_link
bz_status_NEW "
title="NEW - [meta] 13.0.0 Release Blockers"
href="https://bugs.llvm.org/show_bug.cgi?id=51236">Bug 51236</a>] [meta] 13.0.0 Release Blockers
</li>
</ul>
</div>
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