https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96037
--- Comment #5 from Martin Liška <marxin at gcc dot gnu.org> --- val ~/BIG/bin/ppc64le/dev/shm/buildbot/install/gcc/bin/ppc64le-linux-gnu-gcc /home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/vect/pr33373b.c -O3 -c ==29096== Memcheck, a memory error detector ==29096== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al. ==29096== Using Valgrind-3.16.0 and LibVEX; rerun with -h for copyright info ==29096== Command: /home/marxin/BIG/bin/ppc64le/dev/shm/buildbot/install/gcc/bin/ppc64le-linux-gnu-gcc /home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/vect/pr33373b.c -O3 -c ==29096== ==29097== Memcheck, a memory error detector ==29097== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al. ==29097== Using Valgrind-3.16.0 and LibVEX; rerun with -h for copyright info ==29097== Command: /home/marxin/BIG/bin/ppc64le/dev/shm/buildbot/install/gcc/bin/../lib/gcc/ppc64le-linux-gnu/11.0.0/cc1 -quiet -iprefix /home/marxin/BIG/bin/ppc64le/dev/shm/buildbot/install/gcc/bin/../lib64/gcc/ppc64le-linux-gnu/11.0.0/ /home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/vect/pr33373b.c -quiet -dumpbase pr33373b.c -dumpbase-ext .c -O3 -o /tmp/cc34bJ5g.s ==29097== ==29097== Conditional jump or move depends on uninitialised value(s) ==29097== at 0xCCBC3A: get_vectype_for_scalar_type (tree-vect-stmts.c:10998) ==29097== by 0xCCBC3A: vectorizable_shift(vec_info*, _stmt_vec_info*, gimple_stmt_iterator*, gimple**, _slp_tree*, vec<stmt_info_for_cost, va_heap, vl_ptr>*) (tree-vect-stmts.c:5404) ==29097== by 0xCE0FAD: vect_analyze_stmt(vec_info*, _stmt_vec_info*, bool*, _slp_tree*, _slp_instance*, vec<stmt_info_for_cost, va_heap, vl_ptr>*) (tree-vect-stmts.c:10555) ==29097== by 0xCF83DE: vect_analyze_loop_operations (tree-vect-loop.c:1613) ==29097== by 0xCF83DE: vect_analyze_loop_2 (tree-vect-loop.c:2164) ==29097== by 0xCF83DE: vect_analyze_loop(loop*, vec_info_shared*) (tree-vect-loop.c:2612) ==29097== by 0xD156A4: try_vectorize_loop_1(hash_table<simduid_to_vf, false, xcallocator>*&, unsigned int*, loop*, gimple*, gimple*) (tree-vectorizer.c:955) ==29097== by 0xD160D9: vectorize_loops() (tree-vectorizer.c:1189) ==29097== by 0xA23347: execute_one_pass(opt_pass*) (passes.c:2502) ==29097== by 0xA23C8F: execute_pass_list_1(opt_pass*) (passes.c:2590) ==29097== by 0xA23CA1: execute_pass_list_1(opt_pass*) (passes.c:2591) ==29097== by 0xA23CA1: execute_pass_list_1(opt_pass*) (passes.c:2591) ==29097== by 0xA23CC8: execute_pass_list(function*, opt_pass*) (passes.c:2601) ==29097== by 0x710CFD: cgraph_node::expand() (cgraphunit.c:2301) ==29097== by 0x711D8F: expand_all_functions (cgraphunit.c:2472) ==29097== by 0x711D8F: symbol_table::compile() [clone .part.0] (cgraphunit.c:2823) ==29097== ==29097== Use of uninitialised value of size 8 ==29097== at 0xCCBC40: get_vectype_for_scalar_type (tree-vect-stmts.c:10999) ==29097== by 0xCCBC40: vectorizable_shift(vec_info*, _stmt_vec_info*, gimple_stmt_iterator*, gimple**, _slp_tree*, vec<stmt_info_for_cost, va_heap, vl_ptr>*) (tree-vect-stmts.c:5404) ==29097== by 0xCE0FAD: vect_analyze_stmt(vec_info*, _stmt_vec_info*, bool*, _slp_tree*, _slp_instance*, vec<stmt_info_for_cost, va_heap, vl_ptr>*) (tree-vect-stmts.c:10555) ==29097== by 0xCF83DE: vect_analyze_loop_operations (tree-vect-loop.c:1613) ==29097== by 0xCF83DE: vect_analyze_loop_2 (tree-vect-loop.c:2164) ==29097== by 0xCF83DE: vect_analyze_loop(loop*, vec_info_shared*) (tree-vect-loop.c:2612) ==29097== by 0xD156A4: try_vectorize_loop_1(hash_table<simduid_to_vf, false, xcallocator>*&, unsigned int*, loop*, gimple*, gimple*) (tree-vectorizer.c:955) ==29097== by 0xD160D9: vectorize_loops() (tree-vectorizer.c:1189) ==29097== by 0xA23347: execute_one_pass(opt_pass*) (passes.c:2502) ==29097== by 0xA23C8F: execute_pass_list_1(opt_pass*) (passes.c:2590) ==29097== by 0xA23CA1: execute_pass_list_1(opt_pass*) (passes.c:2591) ==29097== by 0xA23CA1: execute_pass_list_1(opt_pass*) (passes.c:2591) ==29097== by 0xA23CC8: execute_pass_list(function*, opt_pass*) (passes.c:2601) ==29097== by 0x710CFD: cgraph_node::expand() (cgraphunit.c:2301) ==29097== by 0x711D8F: expand_all_functions (cgraphunit.c:2472) ==29097== by 0x711D8F: symbol_table::compile() [clone .part.0] (cgraphunit.c:2823) ==29097== ==29097== Invalid read of size 4 ==29097== at 0xCCBC40: get_vectype_for_scalar_type (tree-vect-stmts.c:10999) ==29097== by 0xCCBC40: vectorizable_shift(vec_info*, _stmt_vec_info*, gimple_stmt_iterator*, gimple**, _slp_tree*, vec<stmt_info_for_cost, va_heap, vl_ptr>*) (tree-vect-stmts.c:5404) ==29097== by 0xCE0FAD: vect_analyze_stmt(vec_info*, _stmt_vec_info*, bool*, _slp_tree*, _slp_instance*, vec<stmt_info_for_cost, va_heap, vl_ptr>*) (tree-vect-stmts.c:10555) ==29097== by 0xCF83DE: vect_analyze_loop_operations (tree-vect-loop.c:1613) ==29097== by 0xCF83DE: vect_analyze_loop_2 (tree-vect-loop.c:2164) ==29097== by 0xCF83DE: vect_analyze_loop(loop*, vec_info_shared*) (tree-vect-loop.c:2612) ==29097== by 0xD156A4: try_vectorize_loop_1(hash_table<simduid_to_vf, false, xcallocator>*&, unsigned int*, loop*, gimple*, gimple*) (tree-vectorizer.c:955) ==29097== by 0xD160D9: vectorize_loops() (tree-vectorizer.c:1189) ==29097== by 0xA23347: execute_one_pass(opt_pass*) (passes.c:2502) ==29097== by 0xA23C8F: execute_pass_list_1(opt_pass*) (passes.c:2590) ==29097== by 0xA23CA1: execute_pass_list_1(opt_pass*) (passes.c:2591) ==29097== by 0xA23CA1: execute_pass_list_1(opt_pass*) (passes.c:2591) ==29097== by 0xA23CC8: execute_pass_list(function*, opt_pass*) (passes.c:2601) ==29097== by 0x710CFD: cgraph_node::expand() (cgraphunit.c:2301) ==29097== by 0x711D8F: expand_all_functions (cgraphunit.c:2472) ==29097== by 0x711D8F: symbol_table::compile() [clone .part.0] (cgraphunit.c:2823) ==29097== Address 0x80000005d is not stack'd, malloc'd or (recently) free'd ==29097==
