<html>
<head>
<base href="https://llvm.org/bugs/" />
</head>
<body><span class="vcard"><a class="email" href="mailto:echristo@gmail.com" title="Eric Christopher <echristo@gmail.com>"> <span class="fn">Eric Christopher</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Inefficient tls code for initial exec X86_64"
href="https://llvm.org/bugs/show_bug.cgi?id=17580">bug 17580</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;">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 - Inefficient tls code for initial exec X86_64"
href="https://llvm.org/bugs/show_bug.cgi?id=17580#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Inefficient tls code for initial exec X86_64"
href="https://llvm.org/bugs/show_bug.cgi?id=17580">bug 17580</a>
from <span class="vcard"><a class="email" href="mailto:echristo@gmail.com" title="Eric Christopher <echristo@gmail.com>"> <span class="fn">Eric Christopher</span></a>
</span></b>
<pre>Looks fixed to me:
dzur:~/tmp> cat > foo.c
__thread int obj;
int test() {
return ((int)&obj) > 0;
}
dzur:~/tmp> clang -S -O2 foo.c -o -
.text
.file "foo.c"
.globl test
.align 16, 0x90
.type test,@function
test: # @test
.cfi_startproc
# BB#0:
movq $obj@TPOFF, %rax
addl %fs:0, %eax
testl %eax, %eax
setg %al
movzbl %al, %eax
retq
.Lfunc_end0:
.size test, .Lfunc_end0-test
.cfi_endproc
.type obj,@object # @obj
.section .tbss,"awT",@nobits
.globl obj
.align 4
obj:
.long 0 # 0x0
.size obj, 4
.ident "clang version 3.7.0 (trunk 238526) (llvm/trunk 238524)"
.section ".note.GNU-stack","",@progbits
dzur:~/tmp> gcc -S -O2 foo.c -o -
.file "foo.c"
foo.c: In function ‘test’:
foo.c:4:11: warning: cast from pointer to integer of different size
[-Wpointer-to-int-cast]
return ((int)&obj) > 0;
^
.text
.p2align 4,,15
.globl test
.type test, @function
test:
.LFB0:
.cfi_startproc
movq %fs:0, %rax
addq $obj@tpoff, %rax
testl %eax, %eax
setg %al
movzbl %al, %eax
ret
.cfi_endproc
.LFE0:
.size test, .-test
.globl obj
.section .tbss,"awT",@nobits
.align 4
.type obj, @object
.size obj, 4
obj:
.zero 4
.ident "GCC: (Ubuntu 4.8.4-2ubuntu1~14.04) 4.8.4"
.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>