http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60006
Bug ID: 60006 Summary: [4.9 Regression] FAIL: c-c++-common/cilk-plus/CK/fib_no_(return|sync).c -O3 with -m32 after r207231 on x86_64-apple-darwin13 Product: gcc Version: 4.9.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: dominiq at lps dot ens.fr CC: iains at gcc dot gnu.org, jakub at gcc dot gnu.org Host: x86_64-apple-darwin13 Target: x86_64-apple-darwin13 Build: x86_64-apple-darwin13 After r207231 the following tests fail on x86_64-apple-darwin13 with -m32 FAIL: c-c++-common/cilk-plus/CK/fib_no_return.c -O3 (test for excess errors) UNRESOLVED: c-c++-common/cilk-plus/CK/fib_no_return.c -O3 compilation failed to produce executable FAIL: c-c++-common/cilk-plus/CK/fib_no_sync.c -O3 (test for excess errors) UNRESOLVED: c-c++-common/cilk-plus/CK/fib_no_sync.c -O3 compilation failed to produce executable FAIL: gcc.dg/atomic/c11-atomic-exec-5.c -O2 -flto execution test FAIL: c-c++-common/cilk-plus/CK/fib_no_return.c -O3 -g (test for excess errors) UNRESOLVED: c-c++-common/cilk-plus/CK/fib_no_return.c -O3 -g compilation failed to produce executable FAIL: c-c++-common/cilk-plus/CK/fib_no_sync.c -O3 -g (test for excess errors) UNRESOLVED: c-c++-common/cilk-plus/CK/fib_no_sync.c -O3 -g compilation failed to produce executable FAIL: c-c++-common/cilk-plus/CK/fib_no_return.c -O3 -flto -g (test for excess errors) UNRESOLVED: c-c++-common/cilk-plus/CK/fib_no_return.c -O3 -flto -g compilation failed to produce executable FAIL: c-c++-common/cilk-plus/CK/fib_no_sync.c -O3 -flto -g (test for excess errors) UNRESOLVED: c-c++-common/cilk-plus/CK/fib_no_sync.c -O3 -flto -g compilation failed to produce executable The failures are of the kind /var/folders/8q/sh_swgz96r7f5vnn08f7fxr00000gn/T//ccE8IAa2.s:856:FATAL:Symbol L2$pb already defined. The failures need -O3, but not -g nor -flto, and r207230 is OK.