Created attachment 26199 [details] autoreduced testcase Compiler output: $ gcc -O3 -fno-tree-copy-prop -fno-tree-fre testsuite/gfortran.dg/inline_sum_1.f90 testsuite/gfortran.dg/inline_sum_1.f90: In function 'MAIN__': testsuite/gfortran.dg/inline_sum_1.f90:14:0: internal compiler error: vector VEC(vec_void_p,base) index domain error, in vinfo_for_stmt at tree-vectorizer.h:620 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. (gdb) bt #0 internal_error (gmsgid=0x1526a70 "vector %s %s domain error, in %s at %s:%u") at /mnt/svn/gcc-trunk/gcc/diagnostic.c:839 #1 0x00000000012226c9 in vec_assert_fail (op=0x14e80a0 "index", struct_name=0x132b3ef "VEC(vec_void_p,base)", file=<optimized out>, line=620, function=0x132ef3a "vinfo_for_stmt") at /mnt/svn/gcc-trunk/gcc/vec.c:517 #2 0x0000000000bfdff7 in VEC_vec_void_p_base_index (ix_=<optimized out>, vec_=<optimized out>, file_=<optimized out>, line_=<optimized out>, function_=<optimized out>) at /mnt/svn/gcc-trunk/gcc/tree-vectorizer.h:603 #3 vinfo_for_stmt (stmt=<optimized out>) at /mnt/svn/gcc-trunk/gcc/tree-vectorizer.h:620 #4 vect_detect_hybrid_slp_stmts (node=0x1b217d0) at /mnt/svn/gcc-trunk/gcc/tree-vect-slp.c:1740 #5 0x0000000000bfe61e in vect_detect_hybrid_slp (loop_vinfo=<optimized out>) at /mnt/svn/gcc-trunk/gcc/tree-vect-slp.c:1770 #6 0x0000000000bf3b55 in vect_analyze_loop_2 (loop_vinfo=<optimized out>) at /mnt/svn/gcc-trunk/gcc/tree-vect-loop.c:1610 #7 vect_analyze_loop (loop=0x7ffff59d4550) at /mnt/svn/gcc-trunk/gcc/tree-vect-loop.c:1667 #8 0x0000000000c02ef7 in vectorize_loops () at /mnt/svn/gcc-trunk/gcc/tree-vectorizer.c:203 #9 0x0000000000960335 in execute_one_pass (pass=0x1842ba0) at /mnt/svn/gcc-trunk/gcc/passes.c:2080 #10 0x00000000009606d5 in execute_pass_list (pass=0x1842ba0) at /mnt/svn/gcc-trunk/gcc/passes.c:2135 #11 0x00000000009606e7 in execute_pass_list (pass=0x1842d80) at /mnt/svn/gcc-trunk/gcc/passes.c:2136 #12 0x00000000009606e7 in execute_pass_list (pass=0x1842000) at /mnt/svn/gcc-trunk/gcc/passes.c:2136 #13 0x0000000000ac16ae in tree_rest_of_compilation (fndecl=0x7ffff5bb5100) at /mnt/svn/gcc-trunk/gcc/tree-optimize.c:421 #14 0x000000000071715a in cgraph_expand_function (node=0x7ffff5a95c60) at /mnt/svn/gcc-trunk/gcc/cgraphunit.c:1818 #15 0x0000000000718efc in cgraph_expand_all_functions () at /mnt/svn/gcc-trunk/gcc/cgraphunit.c:1885 #16 cgraph_optimize () at /mnt/svn/gcc-trunk/gcc/cgraphunit.c:2198 #17 0x000000000071966a in cgraph_finalize_compilation_unit () at /mnt/svn/gcc-trunk/gcc/cgraphunit.c:1327 #18 0x000000000090aa8d in write_global_declarations () at /mnt/svn/gcc-trunk/gcc/langhooks.c:303 #19 0x0000000000a54dec in compile_file () at /mnt/svn/gcc-trunk/gcc/toplev.c:573 #20 do_compile () at /mnt/svn/gcc-trunk/gcc/toplev.c:1935 #21 toplev_main (argc=16, argv=0x7fffffffd928) at /mnt/svn/gcc-trunk/gcc/toplev.c:2011 #22 0x00007ffff61cc09d in __libc_start_main () from /lib64/libc.so.6 #23 0x00000000005833f1 in _start () Tested revisions: r182703 - crash 4.6 r180325 - OK
Started with http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=173856
Created attachment 26210 [details] patch
Author: irar Date: Sun Jan 1 13:52:13 2012 New Revision: 182769 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=182769 Log: PR tree-optimization/51704 * tree-vect-slp.c (vect_detect_hybrid_slp_stmts): Check that a use is inside the basic block or loop before accessing its vect info. Added: trunk/gcc/testsuite/gfortran.dg/vect/no-fre-no-copy-prop-O3-pr51704.f90 Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/gfortran.dg/vect/vect.exp trunk/gcc/tree-vect-slp.c
Fixed.