Thanks for reporting this. Just take a look from my test log that 930623-1.c is
all pass.
Thus I bet this difference comes from the build option --with-arch=rv32imac but
my test script take rv64gcv.
> I've built the git revision f3fdcf4a37a with
> ../gcc-trunk/configure --target=riscv-unknown-elf
> --prefix=/home/ed/gnu/riscv-unknown-elf --enable-languages=c,c++
> --disable-multilib --with-arch=rv32imac --with-abi=ilp32
> I am a bit surprised since the target is not supposed to support floating
> point
> or vector instructions AFAIK.
Because you specify rv32imac, with doesn't include f/d/v extension, aka
single/double floating point and vector extension. Thus, related functionality
are disabled.
> The issue does not happen with gcc-trunk from yesterday.
Ack, will look into it.
Pan
-----Original Message-----
From: Bernd Edlinger <bernd.edlin...@hotmail.de>
Sent: Thursday, April 11, 2024 7:52 PM
To: Li, Pan2 <pan2...@intel.com>; Kito Cheng <kito.ch...@gmail.com>;
juzhe.zh...@rivai.ai
Cc: gcc-patches <gcc-patches@gcc.gnu.org>
Subject: Re: [PATCH v1] RISC-V: Bugfix ICE for the vector return arg in mode
switch
On 4/11/24 05:03, Li, Pan2 wrote:
> Committed, thanks Juzhe and Kito.
>
> Pan
Hi Pan,
this commit caused a regression:
FAIL: gcc.c-torture/compile/930623-1.c -O0 (test for excess errors)
FAIL: gcc.c-torture/compile/930623-1.c -O1 (internal compiler error: in
emit_vec_extract, at config/riscv/riscv-v.cc:5059)
FAIL: gcc.c-torture/compile/930623-1.c -O1 (test for excess errors)
FAIL: gcc.c-torture/compile/930623-1.c -O2 (internal compiler error: in
emit_vec_extract, at config/riscv/riscv-v.cc:5059)
FAIL: gcc.c-torture/compile/930623-1.c -O2 (test for excess errors)
FAIL: gcc.c-torture/compile/930623-1.c -O3 -g (internal compiler error: in
emit_vec_extract, at config/riscv/riscv-v.cc:5059)
FAIL: gcc.c-torture/compile/930623-1.c -O3 -g (test for excess errors)
FAIL: gcc.c-torture/compile/930623-1.c -Os (internal compiler error: in
emit_vec_extract, at config/riscv/riscv-v.cc:5059)
FAIL: gcc.c-torture/compile/930623-1.c -Os (test for excess errors)
FAIL: gcc.c-torture/compile/930623-1.c -O2 -flto -fno-use-linker-plugin
-flto-partition=none (internal compiler error: in emit_vec_extract, at
config/riscv/riscv-v.cc:5059)
FAIL: gcc.c-torture/compile/930623-1.c -O2 -flto -fno-use-linker-plugin
-flto-partition=none (test for excess errors)
gcc/testsuite/gcc.c-torture/compile/930623-1.c:10:3: internal compiler error:
in emit_vec_extract, at config/riscv/riscv-v.cc:5059^M
0xbba2de riscv_vector::emit_vec_extract(rtx_def*, rtx_def*, rtx_def*)^M
../../gcc-trunk/gcc/config/riscv/riscv-v.cc:5059^M
0x186945f riscv_legitimize_move(machine_mode, rtx_def*, rtx_def*)^M
../../gcc-trunk/gcc/config/riscv/riscv.cc:2895^M
0x1ef50b2 gen_movsi(rtx_def*, rtx_def*)^M
../../gcc-trunk/gcc/config/riscv/riscv.md:2225^M
0xffc91c rtx_insn* insn_gen_fn::operator()<rtx_def*, rtx_def*>(rtx_def*,
rtx_def*) const^M
../../gcc-trunk/gcc/recog.h:441^M
0xffc91c emit_move_insn_1(rtx_def*, rtx_def*)^M
../../gcc-trunk/gcc/expr.cc:4551^M
0xffcdf4 emit_move_insn(rtx_def*, rtx_def*)^M
../../gcc-trunk/gcc/expr.cc:4721^M
0x1002f17 emit_move_multi_word^M
../../gcc-trunk/gcc/expr.cc:4517^M
0xffcdf4 emit_move_insn(rtx_def*, rtx_def*)^M
../../gcc-trunk/gcc/expr.cc:4721^M
0x1efc6b7 gen_untyped_call(rtx_def*, rtx_def*, rtx_def*)^M
../../gcc-trunk/gcc/config/riscv/riscv.md:3478^M
0x185fc7c target_gen_untyped_call^M
../../gcc-trunk/gcc/config/riscv/riscv.md:3453^M
0xe8e81f expand_builtin_apply^M
../../gcc-trunk/gcc/builtins.cc:1761^M
0xea053c expand_builtin(tree_node*, rtx_def*, rtx_def*, machine_mode, int)^M
../../gcc-trunk/gcc/builtins.cc:8001^M
0xff9e27 expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)^M
../../gcc-trunk/gcc/expr.cc:12353^M
0xec4c3d expand_expr(tree_node*, rtx_def*, machine_mode, expand_modifier)^M
../../gcc-trunk/gcc/expr.h:316^M
0xec4c3d expand_call_stmt^M
../../gcc-trunk/gcc/cfgexpand.cc:2865^M
0xec4c3d expand_gimple_stmt_1^M
../../gcc-trunk/gcc/cfgexpand.cc:3932^M
0xec4c3d expand_gimple_stmt^M
../../gcc-trunk/gcc/cfgexpand.cc:4077^M
0xeca206 expand_gimple_basic_block^M
../../gcc-trunk/gcc/cfgexpand.cc:6133^M
0xecc287 execute^M
../../gcc-trunk/gcc/cfgexpand.cc:6872^M
Please submit a full bug report, with preprocessed source (by using
-freport-bug).^M
Please include the complete backtrace with any bug report.^M
See <https://gcc.gnu.org/bugs/> for instructions.^M
compiler exited with status 1
I've built the git revision f3fdcf4a37a with
../gcc-trunk/configure --target=riscv-unknown-elf
--prefix=/home/ed/gnu/riscv-unknown-elf --enable-languages=c,c++
--disable-multilib --with-arch=rv32imac --with-abi=ilp32
I am a bit surprised since the target is not supposed to support floating point
or vector instructions AFAIK.
The issue does not happen with gcc-trunk from yesterday.
Regards
Bernd.
