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From: "mikulas at artax dot karlin.mff.cuni.cz" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/105955] New: ICE when using
 __attribute__((__sysv_abi__)) on Cygwin
Date: Mon, 13 Jun 2022 18:19:56 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105955

            Bug ID: 105955
           Summary: ICE when using __attribute__((__sysv_abi__)) on Cygwin
           Product: gcc
           Version: 11.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: mikulas at artax dot karlin.mff.cuni.cz
  Target Milestone: ---

Compile this piece of code on 64-bit Cygwin distribution with gcc 11.3.0 wi=
th
or without optimizations.

The result is:
during RTL pass: pro_and_epilogue
gcc-crash.e: In function 'fn3':
gcc-crash.e:16:1: internal compiler error: in choose_baseaddr, at
config/i386/i386.c:6915
   16 | }
      | ^
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://gcc.gnu.org/bugs/> for instructions.


float fabsf(float x);

void * __attribute__((__sysv_abi__)) fn1(void);

_Bool __attribute__((__sysv_abi__)) fn2(float val)
{
        if (!(fabsf(val) < __builtin_huge_valf()))
                return 1;
        return 0;
}

_Bool fn3(void)
{
        void *p =3D fn1();
        return 1;
}=