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From: "crazylht at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/102133] [12 Regression] ICE in set_rtl building libgcc __muldc3 for 32-bit SPARC
Date: Tue, 31 Aug 2021 02:04:52 +0000 [thread overview]
Message-ID: <bug-102133-4-EScCgy4VCU@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-102133-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102133
--- Comment #3 from Hongtao.liu <crazylht at gmail dot com> ---
static inline void
set_rtl (tree t, rtx x)
{
gcc_checking_assert (!x
|| !(TREE_CODE (t) == SSA_NAME || is_gimple_reg (t))
|| (use_register_for_decl (t)
? (REG_P (x)
|| (GET_CODE (x) == CONCAT
&& (REG_P (XEXP (x, 0))
|| SUBREG_P (XEXP (x, 0)))
&& (REG_P (XEXP (x, 1))
|| SUBREG_P (XEXP (x, 1))))
/* We need to accept PARALLELs for RESUT_DECLs
because of vector types with BLKmode returned
in multiple registers, but they are supposed
to be uncoalesced. */
|| (GET_CODE (x) == PARALLEL
&& SSAVAR (t)
&& TREE_CODE (SSAVAR (t)) == RESULT_DECL
&& (GET_MODE (x) == BLKmode
|| !flag_tree_coalesce_vars)))
: (MEM_P (x) || x == pc_rtx
|| (GET_CODE (x) == CONCAT
&& MEM_P (XEXP (x, 0))
&& MEM_P (XEXP (x, 1))))));
x is
(subreg:DF (reg:DI 154) 0),
t is
<ssa_name 0x7fffea4a9a68
type <real_type 0x7fffea48b1f8 DFtype sizes-gimplified DF
size <integer_cst 0x7fffea2e2e10 constant 64>
unit-size <integer_cst 0x7fffea2e2e28 constant 8>
align:64 warn_if_not_align:0 symtab:0 alias-set -1 canonical-type
0x7fffea2f9498 precision:64 context <translation_unit_decl 0x7fffea49c078
/scratch/jmyers/glibc/many12/src/gcc/libgcc/libgcc2.c>>
visited var <parm_decl 0x7fffea497b00 d>
def_stmt GIMPLE_NOP
version:62>
and it hit REG_P (XEXP (x, 1)), XEXP (x, 1) is invalid for subreg, so set_rtl
here doesn't accept subreg?
next prev parent reply other threads:[~2021-08-31 2:04 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-30 19:03 [Bug middle-end/102133] New: " jsm28 at gcc dot gnu.org
2021-08-30 19:09 ` [Bug middle-end/102133] " pinskia at gcc dot gnu.org
2021-08-31 1:20 ` crazylht at gmail dot com
2021-08-31 1:51 ` crazylht at gmail dot com
2021-08-31 2:04 ` crazylht at gmail dot com [this message]
2021-08-31 2:16 ` crazylht at gmail dot com
2021-08-31 2:49 ` crazylht at gmail dot com
2021-08-31 3:01 ` crazylht at gmail dot com
2021-08-31 3:29 ` crazylht at gmail dot com
2021-08-31 4:59 ` crazylht at gmail dot com
2021-08-31 7:23 ` rguenth at gcc dot gnu.org
2021-08-31 10:09 ` mikpelinux at gmail dot com
2021-09-01 1:08 ` cvs-commit at gcc dot gnu.org
2021-09-01 1:24 ` crazylht at gmail dot com
2022-01-17 13:52 ` rguenth at gcc dot gnu.org
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