From 5e79b147663c2f24079f3292e25cd66693da8cf5 Mon Sep 17 00:00:00 2001 From: Richard Biener Date: Mon, 15 Jul 2019 12:48:47 +0000 Subject: re PR tree-optimization/91162 (ICE: tree check: expected class 'type', have 'exceptional' (error_mark) in useless_type_conversion_p, at gimple-expr.c:86 (error: invalid 'PHI' argument)) 2019-07-15 Richard Biener PR middle-end/91162 * tree-cfg.c (move_block_to_fn): When releasing a virtual PHI node make sure to replace all uses with something valid. * gcc.dg/autopar/pr91162.c: New testcase. From-SVN: r273492 --- gcc/tree-cfg.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'gcc/tree-cfg.c') diff --git a/gcc/tree-cfg.c b/gcc/tree-cfg.c index 5c67d02..4521fe3 100644 --- a/gcc/tree-cfg.c +++ b/gcc/tree-cfg.c @@ -7088,7 +7088,14 @@ move_block_to_fn (struct function *dest_cfun, basic_block bb, if (virtual_operand_p (op)) { /* Remove the phi nodes for virtual operands (alias analysis will be - run for the new function, anyway). */ + run for the new function, anyway). But replace all uses that + might be outside of the region we move. */ + use_operand_p use_p; + imm_use_iterator iter; + gimple *use_stmt; + FOR_EACH_IMM_USE_STMT (use_stmt, iter, op) + FOR_EACH_IMM_USE_ON_STMT (use_p, iter) + SET_USE (use_p, SSA_NAME_VAR (op)); remove_phi_node (&psi, true); continue; } -- cgit v1.1