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From: "burnus at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/111093] New: [nvptx] ICE (assert) when running
 "accel/nvptx-none/cc1 -E -dM < /dev/null"
Date: Mon, 21 Aug 2023 18:57:03 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: target
X-Bugzilla-Version: 14.0
X-Bugzilla-Keywords: ice-on-valid-code
X-Bugzilla-Severity: normal
X-Bugzilla-Who: burnus at gcc dot gnu.org
X-Bugzilla-Status: UNCONFIRMED
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X-Bugzilla-Priority: P3
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D111093

            Bug ID: 111093
           Summary: [nvptx] ICE (assert) when running
                    "accel/nvptx-none/cc1 -E -dM < /dev/null"
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: burnus at gcc dot gnu.org
                CC: tschwinge at gcc dot gnu.org, vries at gcc dot gnu.org
  Target Milestone: ---

Running "accel/nvptx-none/cc1 -E -dM < /dev/null" to determine which #defin=
es
are available fails with:

cc1: internal compiler error: in nvptx_option_override, at
config/nvptx/nvptx.cc:339
0x125e31a nvptx_option_override


The reason is:

  /* Via nvptx 'OPTION_DEFAULT_SPECS', '-misa' always appears on the command
     line.  */
  gcc_checking_assert (OPTION_SET_P (ptx_isa_option));

Expected: An error message that '-misa=3D' is required, given that
OPTION_DEFAULT_SPECS is not used when invoking the compiler (e.g. cc1) dire=
ctly
and not via the driver (e.g. gcc), especially as the drivers of the acceler=
ator
targets are not installed in an offloading configuration.=