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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/95169] i386 comparison between nan and 0.0 triggers Invalid operation exception
Date: Sun, 17 May 2020 01:59:12 +0000 [thread overview]
Message-ID: <bug-95169-4-iFfwAJVjDo@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-95169-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95169
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
0x000011e6 <+45>: fcompl -0x10(%ebp)
0x000011e9 <+48>: fnstsw %ax
0x000011eb <+50>: sahf
That is what raises the invalid-operation exception
#(insn 23 56 24 2 (set (reg:HI 0 ax [99])
# (unspec:HI [
# (compare:CCFP (reg:DF 8 st)
# (mem/c:DF (plus:SI (reg/f:SI 6 bp)
# (const_int -16 [0xfffffffffffffff0])) [1 y+0 S8
A64]))
# ] UNSPEC_FNSTSW)) "t6.c":6:25 23 {*cmpdf_i387}
# (expr_list:REG_DEAD (reg:DF 8 st)
# (nil)))
fcompl -16(%ebp) # 23 [c=20 l=16] *cmpdf_i387
next prev parent reply other threads:[~2020-05-17 1:59 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-17 0:23 [Bug c/95169] New: " samuel.thibault@ens-lyon.org
2020-05-17 0:25 ` [Bug c/95169] " samuel.thibault@ens-lyon.org
2020-05-17 0:26 ` samuel.thibault@ens-lyon.org
2020-05-17 1:06 ` [Bug target/95169] " samuel.thibault@ens-lyon.org
2020-05-17 1:59 ` pinskia at gcc dot gnu.org [this message]
2020-05-17 18:32 ` ubizjak at gmail dot com
2020-05-17 18:58 ` ubizjak at gmail dot com
2020-05-18 15:53 ` [Bug target/95169] [10/11 Regression] " cvs-commit at gcc dot gnu.org
2020-05-21 17:37 ` cvs-commit at gcc dot gnu.org
2020-05-21 18:43 ` ubizjak at gmail dot com
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