https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88519
Bug ID: 88519 Summary: internal compiler error: in expand_widen_pattern_expr, at optabs.c:278 Product: gcc Version: 9.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: rtl-optimization Assignee: unassigned at gcc dot gnu.org Reporter: toon at moene dot org Target Milestone: --- Created attachment 45244 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=45244&action=edit Source code that provokes the ICE. The attached source provokes the following ICE: during RTL pass: expand hlcfint2.f90:159:0: 159 | zpsi2 = ppsi(i,k) + (ppsi(i,k)-ppsi(i,k-1))*zxx/(pph(i,k)-pph(i,k-1)) | internal compiler error: in expand_widen_pattern_expr, at optabs.c:278 0x6bcac1 expand_widen_pattern_expr(separate_ops*, rtx_def*, rtx_def*, rtx_def*, rtx_def*, int) /home/toon/compilers/trunk/gcc/optabs.c:278 0xabe134 expand_expr_real_2(separate_ops*, rtx_def*, machine_mode, expand_modifier) /home/toon/compilers/trunk/gcc/expr.c:9465 0xaaeb2f expand_expr_real_1(tree_node*, rtx_def*, machine_mode, expand_modifier, rtx_def**, bool) /home/toon/compilers/trunk/gcc/expr.c:9882 0xaac1b5 expand_expr_real_1(tree_node*, rtx_def*, machine_mode, expand_modifier, rtx_def**, bool) /home/toon/compilers/trunk/gcc/expr.c:11037 0xab8843 store_expr(tree_node*, rtx_def*, int, bool, bool) /home/toon/compilers/trunk/gcc/expr.c:5633 0xab9f79 expand_assignment(tree_node*, tree_node*, bool) /home/toon/compilers/trunk/gcc/expr.c:5416 0xab9f79 expand_assignment(tree_node*, tree_node*, bool) /home/toon/compilers/trunk/gcc/expr.c:4977 0x9a064f expand_gimple_stmt_1 /home/toon/compilers/trunk/gcc/cfgexpand.c:3746 0x9a064f expand_gimple_stmt /home/toon/compilers/trunk/gcc/cfgexpand.c:3844 0x9a2b01 expand_gimple_basic_block /home/toon/compilers/trunk/gcc/cfgexpand.c:5880 0x9a7687 execute /home/toon/compilers/trunk/gcc/cfgexpand.c:6502 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <https://gcc.gnu.org/bugs/> for instructions. when compiled in the following way: ~toon/compilers/install/bin/gfortran -Ofast -march=skylake-avx512 -c hlcfint2.f90 Version of the compiler: ~toon/compilers/install/bin/gfortran -v Using built-in specs. COLLECT_GCC=/home/toon/compilers/install/bin/gfortran COLLECT_LTO_WRAPPER=/home/toon/compilers/install/libexec/gcc/x86_64-pc-linux-gnu/9.0.0/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: /home/toon/compilers/trunk/configure --prefix=/home/toon/compilers/install --with-gnu-as --with-gnu-ld --enable-languages=all,go,ada --disable-multilib --disable-nls Thread model: posix gcc version 9.0.0 20181216 (experimental) (GCC)