https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65823
Bug ID: 65823 Summary: [6 Regression] ICE in gcc.c-torture/execute/stdarg-2.c -O0/-O1 for arm Product: gcc Version: 5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: vries at gcc dot gnu.org Comparing: - https://gcc.gnu.org/ml/gcc-testresults/2015-04/msg02096.html (r222178) and - https://gcc.gnu.org/ml/gcc-testresults/2015-04/msg02042.html (r222164) shows two new stdarg-2.c failures for arm: ... FAIL: gcc.c-torture/execute/stdarg-2.c -O0 (internal compiler error) FAIL: gcc.c-torture/execute/stdarg-2.c -O0 (test for excess errors) ... According to https://gcc.gnu.org/ml/gcc-patches/2015-04/msg01114.html : ... /projects/.../src/gcc/gcc/testsuite/gcc.c-torture/execute/stdarg-2.c: In function 'f3': /projects/.../src/gcc/gcc/testsuite/gcc.c-torture/execute/stdarg-2.c:61:1: error: incorrect sharing of tree nodes aps[4] # .MEM_5 = VDEF <.MEM_11> aps[4] = aps[4]; /projects/.../src/gcc/gcc/testsuite/gcc.c-torture/execute/stdarg-2.c:61:1: internal compiler error: verify_gimple failed 0xae4893 verify_gimple_in_cfg(function*, bool) /projects/.../src/gcc/gcc/tree-cfg.c:5136 0x9e3f2f execute_function_todo /projects/.../src/gcc/gcc/passes.c:1946 0x9e48d3 execute_todo /projects/.../src/gcc/gcc/passes.c:2003 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <http://gcc.gnu.org/bugs.html> for instructions. ...