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From: "xry111 at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/109883] Stack Overflow in <cmath> functions with
 <stdfloat> types and -std=c++23
Date: Wed, 17 May 2023 12:40:33 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109883

--- Comment #5 from Xi Ruoyao <xry111 at gcc dot gnu.org> ---
0000000000001203
<_ZSt3powIDF64_DF64_EN9__gnu_cxx11__promote_2IDTplcvNS1_IT_XsrSt12__is_inte=
gerIS2_E7__valueEE6__typeELi0EcvNS1_IT0_XsrS3_IS7_E7__valueEE6__typeELi0EEX=
srS3_ISB_E7__valueEE6__typeES2_S7_>:
    1203:       55                      push   %rbp
    1204:       48 89 e5                mov    %rsp,%rbp
    1207:       48 83 ec 10             sub    $0x10,%rsp
    120b:       f2 0f 11 45 f8          movsd  %xmm0,-0x8(%rbp)
    1210:       f2 0f 11 4d f0          movsd  %xmm1,-0x10(%rbp)
    1215:       f2 0f 10 45 f0          movsd  -0x10(%rbp),%xmm0
    121a:       48 8b 45 f8             mov    -0x8(%rbp),%rax
    121e:       66 0f 28 c8             movapd %xmm0,%xmm1
    1222:       66 48 0f 6e c0          movq   %rax,%xmm0
    1227:       e8 d7 ff ff ff          call   1203
<_ZSt3powIDF64_DF64_EN9__gnu_cxx11__promote_2IDTplcvNS1_IT_XsrSt12__is_inte=
gerIS2_E7__valueEE6__typeELi0EcvNS1_IT0_XsrS3_IS7_E7__valueEE6__typeELi0EEX=
srS3_ISB_E7__valueEE6__typeES2_S7_>
    122c:       66 48 0f 7e c0          movq   %xmm0,%rax
    1231:       66 48 0f 6e c0          movq   %rax,%xmm0
    1236:       c9                      leave
    1237:       c3                      ret

This is just stupid...=