https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110843
Bug ID: 110843
Summary: ICE in convert_insn, at
config/i386/i386-features.cc:1438 since
r14-2405-g4814b63c3c2326
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: jamborm at gcc dot gnu.org
CC: sayle at gcc dot gnu.org
Target Milestone: ---
Host: x86_64-linux
Target: x86_64-linux
Since r14-2405-g4814b63c3c2326 (i386: Add AVX512 support for STV of
SI/DImode rotation by constant), I can see an ICE when compiling
testcase gcc.target/i386/pr70007.c with options -Oz -mavx512ifma:
mjambor@scala:/tmp$ ~/gcc/mine/inst/bin/gcc
~/gcc/mine/src/gcc/testsuite/gcc.target/i386/pr70007.c -Oz -mavx512ifma
/home/mjambor/gcc/mine/src/gcc/testsuite/gcc.target/i386/pr70007.c: In function
‘foo’:
/home/mjambor/gcc/mine/src/gcc/testsuite/gcc.target/i386/pr70007.c:22:1: error:
unrecognizable insn:
22 | }
| ^
(insn 11 10 86 3 (set (subreg:V2DI (reg:DI 160) 0)
(rotatert:V2DI (subreg:V2DI (reg:DI 106) 0)
(const_int 19 [0x13])))
"/home/mjambor/gcc/mine/src/gcc/testsuite/gcc.target/i386/pr70007.c":17:55 -1
(expr_list:REG_DEAD (reg:DI 106)
(expr_list:REG_UNUSED (reg:CC 17 flags)
(nil))))
during RTL pass: stv
/home/mjambor/gcc/mine/src/gcc/testsuite/gcc.target/i386/pr70007.c:22:1:
internal compiler error: in convert_insn, at config/i386/i386-features.cc:1438
0x7cc810 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
/home/mjambor/gcc/mine/src/gcc/rtl-error.cc:108
0x7cc82c _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
/home/mjambor/gcc/mine/src/gcc/rtl-error.cc:116
0x86e6d4 convert_insn
/home/mjambor/gcc/mine/src/gcc/config/i386/i386-features.cc:1438
0x141e59e convert
/home/mjambor/gcc/mine/src/gcc/config/i386/i386-features.cc:1975
0x141e59e convert_scalars_to_vector
/home/mjambor/gcc/mine/src/gcc/config/i386/i386-features.cc:2515
0x141e59e execute
/home/mjambor/gcc/mine/src/gcc/config/i386/i386-features.cc:2678
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
