https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92401
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jakub at gcc dot gnu.org
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
I guess one way to fix this would be:
--- gcc/gimple-match-head.c.jj 2019-11-01 22:19:49.604831956 +0100
+++ gcc/gimple-match-head.c 2019-11-07 17:40:32.799882669 +0100
@@ -191,7 +191,11 @@ gimple_resimplify1 (gimple_seq *seq, gim
{
tree tem = NULL_TREE;
if (res_op->code.is_tree_code ())
- tem = const_unop (res_op->code, res_op->type, res_op->ops[0]);
+ {
+ if (IS_EXPR_CODE_CLASS (TREE_CODE_CLASS (res_op->code))
+ && TREE_CODE_LENGTH (code) == 1)
+ tem = const_unop (res_op->code, res_op->type, res_op->ops[0]);
+ }
else
tem = fold_const_call (combined_fn (res_op->code), res_op->type,
res_op->ops[0]);
@@ -252,8 +256,12 @@ gimple_resimplify2 (gimple_seq *seq, gim
{
tree tem = NULL_TREE;
if (res_op->code.is_tree_code ())
- tem = const_binop (res_op->code, res_op->type,
- res_op->ops[0], res_op->ops[1]);
+ {
+ if (IS_EXPR_CODE_CLASS (TREE_CODE_CLASS (res_op->code))
+ && TREE_CODE_LENGTH (code) == 2)
+ tem = const_binop (res_op->code, res_op->type,
+ res_op->ops[0], res_op->ops[1]);
+ }
else
tem = fold_const_call (combined_fn (res_op->code), res_op->type,
res_op->ops[0], res_op->ops[1]);
@@ -325,9 +333,13 @@ gimple_resimplify3 (gimple_seq *seq, gim
{
tree tem = NULL_TREE;
if (res_op->code.is_tree_code ())
- tem = fold_ternary/*_to_constant*/ (res_op->code, res_op->type,
- res_op->ops[0], res_op->ops[1],
- res_op->ops[2]);
+ {
+ if (IS_EXPR_CODE_CLASS (TREE_CODE_CLASS (res_op->code))
+ && TREE_CODE_LENGTH (code) == 3)
+ tem = fold_ternary/*_to_constant*/ (res_op->code, res_op->type,
+ res_op->ops[0], res_op->ops[1],
+ res_op->ops[2]);
+ }
else
tem = fold_const_call (combined_fn (res_op->code), res_op->type,
res_op->ops[0], res_op->ops[1], res_op->ops[2]);
const_unop/const_binop are actually quite forgiving on what they are called
with, just return NULL_TREE, but fold_ternary is not. res_op->code in this
case is a CONSTRUCTOR with 3 elts.
