Executing on host: /test/gnu/gcc/objdir/gcc/xgcc -B/test/gnu/gcc/objdir/gcc/ /te st/gnu/gcc/gcc/gcc/testsuite/gcc.dg/initpri1.c -ansi -pedantic-errors -lm -o ./initpri1.exe (timeout = 300) WARNING: program timed out. compiler exited with status 1 FAIL: gcc.dg/initpri1.c (test for excess errors) Running under gdb, I see: Program received signal SIGINT, Interrupt. 0x01478e68 in build_cdtor (ctor_p=1 '\001', cdtors=0x400c9108) at ../../gcc/gcc/ipa.c:1490 1490 while (i < len); (gdb) bt #0 0x01478e68 in build_cdtor (ctor_p=1 '\001', cdtors=0x400c9108) at ../../gcc/gcc/ipa.c:1490 #1 0x01479384 in build_cdtor_fns () at ../../gcc/gcc/ipa.c:1565 #2 0x0147962c in ipa_cdtor_merge () at ../../gcc/gcc/ipa.c:1594 #3 0x00ca6da0 in execute_one_pass (pass=0x4001ca4c) at ../../gcc/gcc/passes.c:1562 #4 0x00ca8058 in execute_ipa_pass_list (pass=0x4001ca4c) at ../../gcc/gcc/passes.c:1929 #5 0x013ee044 in ipa_passes () at ../../gcc/gcc/cgraphunit.c:1734 #6 0x013ee1a8 in cgraph_optimize () at ../../gcc/gcc/cgraphunit.c:1769 #7 0x013eb62c in cgraph_finalize_compilation_unit () at ../../gcc/gcc/cgraphunit.c:1020 #8 0x000c262c in c_write_global_declarations () at ../../gcc/gcc/c-decl.c:9821 #9 0x00e2c434 in compile_file () at ../../gcc/gcc/toplev.c:946 #10 0x00e30508 in do_compile () at ../../gcc/gcc/toplev.c:2374 #11 0x00e30694 in toplev_main (argc=19, argv=0x7eff05e4) at ../../gcc/gcc/toplev.c:2415 #12 0x00373f34 in main (argc=19, argv=0x7eff05e4) at ../../gcc/gcc/main.c:36 There's a thinko in this code: /* Find the next batch of constructors/destructors with the same initialization priority. */ for (;i < j; i++) { tree call; fn = VEC_index (tree, cdtors, i); call = build_call_expr (fn, 0); if (ctor_p) DECL_STATIC_CONSTRUCTOR (fn) = 0; else DECL_STATIC_DESTRUCTOR (fn) = 0; /* We do not want to optimize away pure/const calls here. When optimizing, these should be already removed, when not optimizing, we want user to be able to breakpoint in them. */ TREE_SIDE_EFFECTS (call) = 1; append_to_statement_list (call, &body); } while (i < len);
(In reply to comment #0) > Executing on host: /test/gnu/gcc/objdir/gcc/xgcc -B/test/gnu/gcc/objdir/gcc/ > /te > st/gnu/gcc/gcc/gcc/testsuite/gcc.dg/initpri1.c -ansi -pedantic-errors -lm > -o ./initpri1.exe (timeout = 300) > WARNING: program timed out. > compiler exited with status 1 > FAIL: gcc.dg/initpri1.c (test for excess errors) > > Running under gdb, I see: > > Program received signal SIGINT, Interrupt. > 0x01478e68 in build_cdtor (ctor_p=1 '\001', cdtors=0x400c9108) > at ../../gcc/gcc/ipa.c:1490 > 1490 while (i < len); > (gdb) bt > #0 0x01478e68 in build_cdtor (ctor_p=1 '\001', cdtors=0x400c9108) > at ../../gcc/gcc/ipa.c:1490 > #1 0x01479384 in build_cdtor_fns () at ../../gcc/gcc/ipa.c:1565 > #2 0x0147962c in ipa_cdtor_merge () at ../../gcc/gcc/ipa.c:1594 > #3 0x00ca6da0 in execute_one_pass (pass=0x4001ca4c) > at ../../gcc/gcc/passes.c:1562 > #4 0x00ca8058 in execute_ipa_pass_list (pass=0x4001ca4c) > at ../../gcc/gcc/passes.c:1929 > #5 0x013ee044 in ipa_passes () at ../../gcc/gcc/cgraphunit.c:1734 > #6 0x013ee1a8 in cgraph_optimize () at ../../gcc/gcc/cgraphunit.c:1769 > #7 0x013eb62c in cgraph_finalize_compilation_unit () > at ../../gcc/gcc/cgraphunit.c:1020 > #8 0x000c262c in c_write_global_declarations () > at ../../gcc/gcc/c-decl.c:9821 > #9 0x00e2c434 in compile_file () at ../../gcc/gcc/toplev.c:946 > #10 0x00e30508 in do_compile () at ../../gcc/gcc/toplev.c:2374 > #11 0x00e30694 in toplev_main (argc=19, argv=0x7eff05e4) > at ../../gcc/gcc/toplev.c:2415 > #12 0x00373f34 in main (argc=19, argv=0x7eff05e4) at ../../gcc/gcc/main.c:36 > > There's a thinko in this code: > > /* Find the next batch of constructors/destructors with the same > initialization priority. */ > for (;i < j; i++) > { > tree call; > fn = VEC_index (tree, cdtors, i); > call = build_call_expr (fn, 0); > if (ctor_p) > DECL_STATIC_CONSTRUCTOR (fn) = 0; > else > DECL_STATIC_DESTRUCTOR (fn) = 0; > /* We do not want to optimize away pure/const calls here. > When optimizing, these should be already removed, when not > optimizing, we want user to be able to breakpoint in them. */ > TREE_SIDE_EFFECTS (call) = 1; > append_to_statement_list (call, &body); > } > while (i < len); Looks like a funny cut&pasto. Just remove the last while (i < len) line which actually is an endless loop.
Author: danglin Date: Mon Oct 11 14:02:03 2010 New Revision: 165308 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=165308 Log: PR middle-end/45955 * ipa.c (build_cdtor): Delete endless loop. Modified: trunk/gcc/ChangeLog trunk/gcc/ipa.c
Fixed.