<html>
<head>
<base href="https://llvm.org/bugs/" />
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Use SSE for DImode store"
href="https://llvm.org/bugs/show_bug.cgi?id=27476">27476</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Use SSE for DImode store
</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>normal
</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>hjl.tools@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>david.l.kreitzer@intel.com, llvm-bugs@lists.llvm.org, zia.ansari@intel.com
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>[hjl@gnu-6 pr70155d]$ cat x5.i
extern long long a;
void
foo (void)
{
a = 0;
}
[hjl@gnu-6 pr70155d]$ cat x6.i
extern long long a;
void
foo (void)
{
a = -1;
}
[hjl@gnu-6 pr70155d]$ make x5.s x6.s
/export/build/gnu/llvm-clang-bootstrap/stage1/build-x86_64-linux/bin//clang -O2
-msse2 -m32 -fno-asynchronous-unwind-tables -S -o x5.s x5.i
/export/build/gnu/llvm-clang-bootstrap/stage1/build-x86_64-linux/bin//clang -O2
-msse2 -m32 -fno-asynchronous-unwind-tables -S -o x6.s x6.i
[hjl@gnu-6 pr70155d]$ cat x5.s x6.s
.text
.file "x5.i"
.globl foo
.p2align 4, 0x90
.type foo,@function
foo: # @foo
# BB#0:
movl $0, a+4
movl $0, a
retl
.Lfunc_end0:
.size foo, .Lfunc_end0-foo
.ident "clang version 3.9.0 (<a href="http://llvm.org/git/clang.git">http://llvm.org/git/clang.git</a>
fdef93f7bb7594c6a2a623835f9d5330184bf37c) (<a href="http://llvm.org/git/llvm.git">http://llvm.org/git/llvm.git</a>
ffadaf5667befa7f105aa48fca597d26d8c7ee49)"
.section ".note.GNU-stack","",@progbits
.text
.file "x6.i"
.globl foo
.p2align 4, 0x90
.type foo,@function
foo: # @foo
# BB#0:
movl $-1, a+4
movl $-1, a
retl
.Lfunc_end0:
.size foo, .Lfunc_end0-foo
.ident "clang version 3.9.0 (<a href="http://llvm.org/git/clang.git">http://llvm.org/git/clang.git</a>
fdef93f7bb7594c6a2a623835f9d5330184bf37c) (<a href="http://llvm.org/git/llvm.git">http://llvm.org/git/llvm.git</a>
ffadaf5667befa7f105aa48fca597d26d8c7ee49)"
.section ".note.GNU-stack","",@progbits
[hjl@gnu-6 pr70155d]$
Thet should use SSE store.</pre>
</div>
</p>
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