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From: "tschwinge at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/112405] New: GCN:
 "gcc.dg/vect/vect-simd-clone-20.c:22:1: error: conversion of register to a
 different size in 'view_convert_expr'"
Date: Mon, 06 Nov 2023 11:00:34 +0000
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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, testsuite-fail
X-Bugzilla-Severity: normal
X-Bugzilla-Who: tschwinge 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=3D112405

            Bug ID: 112405
           Summary: GCN: "gcc.dg/vect/vect-simd-clone-20.c:22:1: error:
                    conversion of register to a different size in
                    'view_convert_expr'"
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code, testsuite-fail
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: tschwinge at gcc dot gnu.org
                CC: ams at gcc dot gnu.org, avieira at gcc dot gnu.org,
                    jules at gcc dot gnu.org
  Target Milestone: ---
            Target: GCN

The test case 'gcc.dg/vect/vect-simd-clone-20.c' added in recent commit
r14-5113-gaed00696a01ac065e9ed327434ec29d1cf50179e "vect: allow using inbra=
nch
simdclones for masked loops" ICEs for GCN target (tested '-march=3Dgfx90a'):

    [...]/source-gcc/gcc/testsuite/gcc.dg/vect/vect-simd-clone-20.c: In
function 'masked':
    [...]/source-gcc/gcc/testsuite/gcc.dg/vect/vect-simd-clone-20.c:22:1:
error: conversion of register to a different size in 'view_convert_expr'
    VIEW_CONVERT_EXPR<vector(64) int>(loop_mask_1);

    _23 =3D VIEW_CONVERT_EXPR<vector(64) int>(loop_mask_1);
    during GIMPLE pass: vect
    dump file: ./vect-simd-clone-20.c.176t.vect
    [...]/source-gcc/gcc/testsuite/gcc.dg/vect/vect-simd-clone-20.c:22:1:
internal compiler error: verify_gimple failed
    0x1022708 verify_gimple_in_cfg(function*, bool, bool)
            [...]/source-gcc/gcc/tree-cfg.cc:5646
    0xe6edd7 execute_function_todo
            [...]/source-gcc/gcc/passes.cc:2088
    0xe6f6e5 execute_todo
            [...]/source-gcc/gcc/passes.cc:2142=