Using test_fpu.f90 of the Polyhedron testsuite,
http://www.polyhedron.co.uk/pb05/polyhedron_benchmark_suite.html, fails since
2007-05-15 (r124736) on x86_64-unknown-linux-gnu, 2007-05-14 (r124708) was
still ok. Last tested: 2007-05-20 (r124860).
The ICE occures with:
gfortran -O3 -ftree-vectorize -ffast-math -funroll-loops test_fpu.f90
With -m32 the ICE does not occure.
Running GCC through valgrind shows:
==30881== Conditional jump or move depends on uninitialised value(s)
==30881== at 0x7A2E38: vrp_evaluate_conditional_warnv (tree-vrp.c:4803)
==30881== by 0x7A34D9: vrp_evaluate_conditional (tree-vrp.c:4935)
==30881== by 0x76488B: substitute_and_fold (tree-ssa-propagate.c:1131)
==30881== by 0x79E418: vrp_finalize (tree-vrp.c:5914)
==30881== by 0x7A006A: execute_vrp (tree-vrp.c:6000)
==30881== by 0x609540: execute_one_pass (passes.c:1065)
==30881== by 0x6096FB: execute_pass_list (passes.c:1117)
==30881== by 0x60970D: execute_pass_list (passes.c:1118)
==30881== by 0x6D3337: tree_rest_of_compilation (tree-optimize.c:406)
==30881== by 0x810D9F: cgraph_expand_function (cgraphunit.c:1086)
==30881== by 0x813241: cgraph_optimize (cgraphunit.c:1155)
==30881== by 0x466F5C: gfc_be_parse_file (f95-lang.c:307)
--
Summary: [Regression 4.3] ICE (segv) with
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: tobias dot burnus at physik dot fu-berlin dot de
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32006
