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From: "lucier at math dot purdue.edu" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/100152] Possible 10.3 bad code generation regression
 from 10.2/9.3 on Mac OS 10.15.7 (Catalina)
Date: Tue, 20 Apr 2021 17:22:49 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100152

--- Comment #13 from lucier at math dot purdue.edu ---
(In reply to Iain Sandoe from comment #8)
> the values of rbp. r10 and esi would be interesting too.

I'm not really familiar with assembler, don't know what register esi is, he=
re's
what lldb says:

(lldb) register read -a
General Purpose Registers:
       rax =3D 0x00007fff924cfba8  sGlobalMutex + 32
       rbx =3D 0x0000000000000001
       rcx =3D 0x000000010426ef90  libgambit.dylib`___gstate0 + 752
       rdx =3D 0x000000010426eca0  libgambit.dylib`___gstate0
       rdi =3D 0x00007ffeebed73d8
       rsi =3D 0x000000000000002f
       rbp =3D 0x00007fa600595ec0
       rsp =3D 0x00007ffeebed73d0
        r8 =3D 0x000000000000045c
        r9 =3D 0x0000000000000462
       r10 =3D 0x00007fff924cfba9  sGlobalMutex + 33
       r11 =3D 0x0000000103d5c920  libgambit.dylib`___UTF_8_put at c_intf.c=
:407:6
       r12 =3D 0x0000000000000042
       r13 =3D 0x00007ffeebed7428
       r14 =3D 0x000000010426eca0  libgambit.dylib`___gstate0
       r15 =3D 0x00000000000006d8
       rip =3D 0x0000000103d60010  libgambit.dylib`___SCMOBJ_to_NONNULLSTRI=
NG +
1520 at c_intf.c:3280:173
    rflags =3D 0x0000000000010206
        cs =3D 0x000000000000002b
        fs =3D 0x0000000000000000
        gs =3D 0x0000000000000000

Floating Point Registers:
       fcw =3D 0x0005
       fsw =3D 0x0000
       ftw =3D 0x83
       fop =3D 0x0000
        ip =3D 0x25ff5699
        cs =3D 0x8670
        dp =3D 0x0000027f
        ds =3D 0x0000
     mxcsr =3D 0x00000000
  mxcsrmask =3D 0x00000000
     stmm0 =3D {0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0xa0 0x1f}
     stmm1 =3D {0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0xff 0xff}
     stmm2 =3D {0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00}
     stmm3 =3D {0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00}
     stmm4 =3D {0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00}
     stmm5 =3D {0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00}
     stmm6 =3D {0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0xff 0xff}
     stmm7 =3D {0xc8 0x5f 0x59 0x02 0x00 0x00 0x00 0x00 0xff 0xff}
      xmm0 =3D {0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00=
 0x00
0x00 0x00 0x00}
      xmm1 =3D {0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00=
 0x00
0x00 0x00 0x00}
      xmm2 =3D {0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00=
 0x00
0x00 0x00 0x00}
      xmm3 =3D {0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00=
 0x00
0x00 0x00 0x00}
      xmm4 =3D {0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00=
 0x00
0x00 0x00 0x00}
      xmm5 =3D {0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00=
 0x00
0x00 0x00 0x00}
      xmm6 =3D {0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00=
 0x00
0x00 0x00 0x00}
      xmm7 =3D {0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00=
 0x00
0x00 0x00 0x00}
      xmm8 =3D {0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00=
 0x00
0x00 0x00 0x00}
      xmm9 =3D {0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00=
 0x00
0x00 0x00 0x00}
     xmm10 =3D {0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00=
 0x00
0x00 0x00 0x00}
     xmm11 =3D {0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00=
 0x00
0x00 0x00 0x00}
     xmm12 =3D {0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00=
 0x00
0x00 0x00 0x00}
     xmm13 =3D {0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00=
 0x00
0x00 0x00 0x00}
     xmm14 =3D {0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00=
 0x00
0x00 0x00 0x00}
     xmm15 =3D {0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00=
 0x00
0x00 0x00 0x00}

Exception State Registers:
    trapno =3D 0x00000000
       err =3D 0x00000000
  faultvaddr =3D 0x0000000000000000=