Thanks for reporting it. Could you try this and verify for me?
- rtx src_op_0 = XEXP (src, 0); - - if (GET_CODE (src) == CONST && GET_CODE (src_op_0) == PLUS - && CONST_POLY_INT_P (XEXP (src_op_0, 1))) + if (GET_CODE (src) == CONST && GET_CODE (XEXP (src, 0)) == PLUS + && CONST_POLY_INT_P (XEXP (XEXP (src, 0), 1))) { rtx dest_tmp = gen_reg_rtx (mode); rtx tmp = gen_reg_rtx (mode); - riscv_emit_move (dest, XEXP (src_op_0, 0)); - riscv_legitimize_poly_move (mode, dest_tmp, tmp, XEXP (src_op_0, 1)); + riscv_emit_move (dest, XEXP (XEXP (src, 0), 0)); + riscv_legitimize_poly_move (mode, dest_tmp, tmp, XEXP (XEXP (src, 0), 1)); If it can fix your issue, plz send a patch and commit it. Thanks. juzhe.zh...@rivai.ai From: Patrick O'Neill Date: 2023-09-19 01:38 To: Li, Pan2; Kito Cheng CC: gcc-patches@gcc.gnu.org; Wang, Yanzhang; juzhe.zh...@rivai.ai; Palmer Dabbelt Subject: Re: [PATCH v1] RISC-V: Fix one ICE for vect test vect-multitypes-5 Hi, After this patch, there is now an ICE when bootstrapping with --enable-checking=rtl on rv32gc. More details: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111461 Thanks, Patrick On 8/29/23 07:40, Li, Pan2 via Gcc-patches wrote: > Committed, thanks Kito. > > Pan > > -----Original Message----- > From: Kito Cheng <kito.ch...@gmail.com> > Sent: Tuesday, August 29, 2023 9:46 PM > To: Li, Pan2 <pan2...@intel.com> > Cc: gcc-patches@gcc.gnu.org; Wang, Yanzhang <yanzhang.w...@intel.com>; > juzhe.zh...@rivai.ai > Subject: Re: [PATCH v1] RISC-V: Fix one ICE for vect test vect-multitypes-5 > > LGTM, thanks :) > > On Tue, Aug 29, 2023 at 6:50 PM Pan Li via Gcc-patches > <gcc-patches@gcc.gnu.org> wrote: >> From: Pan Li <pan2...@intel.com> >> >> There will be one ICE when build vect-multitypes-5.c similar as below: >> >> riscv64-unknown-elf-gcc -O3 \ >> -march=rv64imafdcv -mabi=lp64d -mcmodel=medlow \ >> -fdiagnostics-plain-output -flto -ffat-lto-objects \ >> --param riscv-autovec-preference=scalable -Wno-psabi \ >> -ftree-vectorize -fno-tree-loop-distribute-patterns \ >> -fno-vect-cost-model -fno-common -O2 -fdump-tree-vect-details \ >> gcc/testsuite/gcc.dg/vect/vect-multitypes-5.c -o test.elf -lm >> >> The below RTL is not well handled in riscv_legitimize_const_move, and >> then fall through to the default pass. Then the >> default force_const_mem will NULL_RTX, and will have ICE when operating >> one the NULL_RTX. >> >> (const:DI >> (plus:DI >> (symbol_ref:DI ("ic") [flags 0x2] <var_decl 0x7fe57740be10 ic>) >> (const_poly_int:DI [16, 16]))) >> >> This patch would like to take care of this rtl in >> riscv_legitimize_const_move. >> >> Signed-off-by: Pan Li <pan2...@intel.com> >> Co-Authored-By: Ju-Zhe Zhong <juzhe.zh...@rivai.ai> >> >> gcc/ChangeLog: >> >> * config/riscv/riscv.cc (riscv_legitimize_poly_move): New >> declaration. >> (riscv_legitimize_const_move): Handle ref plus const poly. >> --- >> gcc/config/riscv/riscv.cc | 23 +++++++++++++++++++++++ >> 1 file changed, 23 insertions(+) >> >> diff --git a/gcc/config/riscv/riscv.cc b/gcc/config/riscv/riscv.cc >> index 1d6e278ea90..bab6ed70b2d 100644 >> --- a/gcc/config/riscv/riscv.cc >> +++ b/gcc/config/riscv/riscv.cc >> @@ -366,6 +366,7 @@ static const struct riscv_tune_param >> optimize_size_tune_info = { >> >> static tree riscv_handle_fndecl_attribute (tree *, tree, tree, int, bool >> *); >> static tree riscv_handle_type_attribute (tree *, tree, tree, int, bool *); >> +static void riscv_legitimize_poly_move (machine_mode, rtx, rtx, rtx); >> >> /* Defining target-specific uses of __attribute__. */ >> static const struct attribute_spec riscv_attribute_table[] = >> @@ -2118,6 +2119,28 @@ riscv_legitimize_const_move (machine_mode mode, rtx >> dest, rtx src) >> return; >> } >> >> + /* Handle below format. >> + (const:DI >> + (plus:DI >> + (symbol_ref:DI ("ic") [flags 0x2] <var_decl 0x7fe57740be10 ic>) <- >> op_0 >> + (const_poly_int:DI [16, 16]) // <- op_1 >> + )) >> + */ >> + rtx src_op_0 = XEXP (src, 0); >> + >> + if (GET_CODE (src) == CONST && GET_CODE (src_op_0) == PLUS >> + && CONST_POLY_INT_P (XEXP (src_op_0, 1))) >> + { >> + rtx dest_tmp = gen_reg_rtx (mode); >> + rtx tmp = gen_reg_rtx (mode); >> + >> + riscv_emit_move (dest, XEXP (src_op_0, 0)); >> + riscv_legitimize_poly_move (mode, dest_tmp, tmp, XEXP (src_op_0, 1)); >> + >> + emit_insn (gen_rtx_SET (dest, gen_rtx_PLUS (mode, dest, dest_tmp))); >> + return; >> + } >> + >> src = force_const_mem (mode, src); >> >> /* When using explicit relocs, constant pool references are sometimes >> -- >> 2.34.1 >>