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[Bug dynamic-link/21236] NaN generation by optimized math functions
- From: "hjl.tools at gmail dot com" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Tue, 14 Mar 2017 14:54:08 +0000
- Subject: [Bug dynamic-link/21236] NaN generation by optimized math functions
- Auto-submitted: auto-generated
- References: <bug-21236-131@http.sourceware.org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=21236
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |WAITING
Last reconfirmed| |2017-03-14
Ever confirmed|0 |1
--- Comment #4 from H.J. Lu <hjl.tools at gmail dot com> ---
Please verify that
+_dl_runtime_resolve_avx_slow:
+ cfi_startproc
+ cfi_adjust_cfa_offset(16) # Incorporate PLT
+ vorpd %ymm0, %ymm1, %ymm8
+ vorpd %ymm2, %ymm3, %ymm9
+ vorpd %ymm4, %ymm5, %ymm10
+ vorpd %ymm6, %ymm7, %ymm11
+ vorpd %ymm8, %ymm9, %ymm9
+ vorpd %ymm10, %ymm11, %ymm10
+ vpcmpeqd %xmm8, %xmm8, %xmm8
+ vorpd %ymm9, %ymm10, %ymm10
+ vptest %ymm10, %ymm8
is the cause by changing it to
_dl_runtime_resolve_avx_slow:
jmp _dl_runtime_resolve_avx
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