http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51211
Bug #: 51211
Summary: ICE: SIGSEGV in execute_tm_mark (trans-mem.c:2242)
with -fgnu-tm -O -freorder-blocks -ftracer --param
hot-bb-frequency-fraction=1 and __transaction_atomic
Classification: Unclassified
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: zso...@seznam.cz
CC: amacl...@redhat.com, patrick.marl...@gmail.com
Host: x86_64-pc-linux-gnu
Target: x86_64-pc-linux-gnu
Created attachment 25852
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25852
reduced testcase (from g++.dg/tm/nested-2.C)
Compiler output:
$ gcc -fgnu-tm -O -freorder-blocks -ftracer --param hot-bb-frequency-fraction=1
testcase.c
==11106== Invalid read of size 1
==11106== at 0x9DFE6E: execute_tm_mark() (trans-mem.c:2242)
==11106== by 0x8DF684: execute_one_pass(opt_pass*) (passes.c:2074)
==11106== by 0x8DFA24: execute_pass_list(opt_pass*) (passes.c:2129)
==11106== by 0x8DFA36: execute_pass_list(opt_pass*) (passes.c:2130)
==11106== by 0xA4169D: tree_rest_of_compilation(tree_node*)
(tree-optimize.c:420)
==11106== by 0x694D19: cgraph_expand_function(cgraph_node*)
(cgraphunit.c:1819)
==11106== by 0x696ABB: cgraph_optimize() (cgraphunit.c:1886)
==11106== by 0x697229: cgraph_finalize_compilation_unit()
(cgraphunit.c:1327)
==11106== by 0x574EDF: c_write_global_declarations() (c-decl.c:10023)
==11106== by 0x9D4923: toplev_main(int, char**) (toplev.c:581)
==11106== by 0x674ED2C: (below main) (in /lib64/libc-2.12.2.so)
==11106== Address 0xb0 is not stack'd, malloc'd or (recently) free'd
==11106==
testcase.c: In function 'foo':
testcase.c:4:1: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
Tested revisions:
r181442 - crash
