https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111634
--- Comment #1 from Patrick O'Neill <patrick at rivosinc dot com> --- Comment on attachment 56011 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=56011 -freport-bug output >// Target: riscv64-unknown-linux-gnu >// Configured with: >/scratch/tc-testing/rtl-checking-testsuite/build-rv64gcv/../gcc/configure >--target=riscv64-unknown-linux-gnu --prefix=/ >// Thread model: posix >// Supported LTO compression algorithms: zlib zstd >// gcc version 14.0.0 20230928 (experimental) (g8552dcd8e44) >// >// during RTL pass: expand >// ../gcc/gcc/testsuite/gcc.dg/pr109417.c: In function 'main': >// ../gcc/gcc/testsuite/gcc.dg/pr109417.c:17:17: internal compiler error: RTL >check: expected code 'reg', have 'lo_sum' in rhs_regno, at rtl.h:1934 >// 0x956453 rtl_check_failed_code1(rtx_def const*, rtx_code, char const*, int, >char const*) >// ../../../gcc/gcc/rtl.cc:770 >// 0x9833f5 rhs_regno(rtx_def const*) >// ../../../gcc/gcc/rtl.h:1934 >// 0x985924 rhs_regno(rtx_def const*) >// ../../../gcc/gcc/config/riscv/riscv.cc:2058 >// 0x985924 riscv_legitimize_address >// ../../../gcc/gcc/config/riscv/riscv.cc:2045 >// 0xf58089 memory_address_addr_space(machine_mode, rtx_def*, unsigned char) >// ../../../gcc/gcc/explow.cc:477 >// 0xf3e6ba change_address_1 >// ../../../gcc/gcc/emit-rtl.cc:2294 >// 0xf40d7c offset_address(rtx_def*, rtx_def*, unsigned long) >// ../../../gcc/gcc/emit-rtl.cc:2532 >// 0xf8a321 expand_assignment(tree_node*, tree_node*, bool) >// ../../../gcc/gcc/expr.cc:5734 >// 0xe5c075 expand_gimple_stmt_1 >// ../../../gcc/gcc/cfgexpand.cc:3946 >// 0xe5c075 expand_gimple_stmt >// ../../../gcc/gcc/cfgexpand.cc:4044 >// 0xe61927 expand_gimple_basic_block >// ../../../gcc/gcc/cfgexpand.cc:6100 >// 0xe63bd6 execute >// ../../../gcc/gcc/cfgexpand.cc:6835 >// Please submit a full bug report, with preprocessed source. >// Please include the complete backtrace with any bug report. >// See <https://gcc.gnu.org/bugs/> for instructions. > >// >/scratch/tc-testing/rtl-checking-testsuite/build-rv64gcv/libexec/gcc/riscv64-unknown-linux-gnu/14.0.0/cc1 > -quiet -imultilib lib64/lp64d ../gcc/gcc/testsuite/gcc.dg/pr109417.c -quiet >-dumpbase pr109417.c -dumpbase-ext .c -march=rv64gc -mabi=lp64d >-mcmodel=medlow -mtune=rocket -misa-spec=20191213 >-march=rv64imafdc_zicsr_zifencei -O3 -fdiagnostics-color=never >-fno-diagnostics-show-caret -fno-diagnostics-show-line-numbers >-fdiagnostics-urls=never -fdiagnostics-path-format=separate-events >-fdiagnostics-text-art-charset=none -freport-bug -o - -frandom-seed=0 >-fdump-noaddr > ># 0 "../gcc/gcc/testsuite/gcc.dg/pr109417.c" ># 0 "<built-in>" ># 0 "<command-line>" ># 1 >"/scratch/tc-testing/rtl-checking-testsuite/build-rv64gcv/sysroot/usr/include/stdc-predef.h" > 1 3 4 ># 0 "<command-line>" 2 ># 1 "../gcc/gcc/testsuite/gcc.dg/pr109417.c" > > > >int printf(const char *, ...); >int c, d, *e, f[1][2], g; >int main() { > int h = 0, *a = &h, **b[1] = {&a}; > while (e) > while (g) { > L: > for (h = 0; h < 2; h++) { > while (d) > for (*e = 0; *e < 1;) > printf("0"); > while (c) > ; > f[g][h] = 0; > } > } > if (h) > goto L; > return 0; >}