diff options
Diffstat (limited to 'gcc/tree-cfgcleanup.c')
| -rw-r--r-- | gcc/tree-cfgcleanup.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/gcc/tree-cfgcleanup.c b/gcc/tree-cfgcleanup.c index fc2141f48c1..8dec8c76431 100644 --- a/gcc/tree-cfgcleanup.c +++ b/gcc/tree-cfgcleanup.c @@ -568,9 +568,23 @@ fixup_noreturn_call (gimple stmt) imm_use_iterator iter; gimple use_stmt; + /* All statements using the OP are unreachable or PHI + statements where the edge correspoing to OP use is unreachable. + We need to remove all normal statements so fixup_cfg will not + try to update them and keep all PHIs but remove use of the SSA + name or verifier will complain. */ FOR_EACH_IMM_USE_STMT (use_stmt, iter, op) - FOR_EACH_IMM_USE_ON_STMT (use_p, iter) - SET_USE (use_p, error_mark_node); + { + if (gimple_code (use_stmt) == GIMPLE_PHI) + FOR_EACH_IMM_USE_ON_STMT (use_p, iter) + SET_USE (use_p, error_mark_node); + else + { + gimple_stmt_iterator gsi = gsi_for_stmt (use_stmt); + gsi_remove (&gsi, true); + } + } + release_ssa_name (op); } update_stmt (stmt); changed = true; |