<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>
      <hr>
      <span>You are receiving this mail because:</span>
      
      <ul>
          <li>You are on the CC list for the bug.</li>
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    </body>
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