<html>
<head>
<base href="https://llvm.org/bugs/" />
</head>
<body><span class="vcard"><a class="email" href="mailto:llvm-dev@redking.me.uk" title="Simon Pilgrim <llvm-dev@redking.me.uk>"> <span class="fn">Simon Pilgrim</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - error in backend: Cannot select: intrinsic %llvm.x86.sse2.mfence"
href="https://llvm.org/bugs/show_bug.cgi?id=19770">bug 19770</a>
<br>
<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Status</td>
<td>NEW
</td>
<td>RESOLVED
</td>
</tr>
<tr>
<td style="text-align:right;">CC</td>
<td>
</td>
<td>llvm-dev@redking.me.uk
</td>
</tr>
<tr>
<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>FIXED
</td>
</tr></table>
<p>
<div>
<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - error in backend: Cannot select: intrinsic %llvm.x86.sse2.mfence"
href="https://llvm.org/bugs/show_bug.cgi?id=19770#c5">Comment # 5</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - error in backend: Cannot select: intrinsic %llvm.x86.sse2.mfence"
href="https://llvm.org/bugs/show_bug.cgi?id=19770">bug 19770</a>
from <span class="vcard"><a class="email" href="mailto:llvm-dev@redking.me.uk" title="Simon Pilgrim <llvm-dev@redking.me.uk>"> <span class="fn">Simon Pilgrim</span></a>
</span></b>
<pre>Resolving. Trunk gives:
echo 'void f() { __builtin_ia32_mfence(); }' | ~/llvm/build/bin/clang -cc1
-triple i386---elf -S -x c -
<stdin>:1:12: error: '__builtin_ia32_mfence' needs target feature sse2
void f() { __builtin_ia32_mfence(); }
And adding sse2:
echo 'void f() { __builtin_ia32_mfence(); }' | ~/llvm/build/bin/clang -cc1
-triple i386---elf -S -x c - -target-feature "+sse2"
.text
.file "-"
.globl f
.p2align 4, 0x90
.type f,@function
f:
mfence
retl
.Lfunc_end0:
.size f, .Lfunc_end0-f
.ident "clang version 4.0.0 (trunk 276559)"
.section ".note.GNU-stack","",@progbits</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>