https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90494
Bug ID: 90494
Summary: ICE using a released ssaname
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: debug
Assignee: unassigned at gcc dot gnu.org
Reporter: nathan at gcc dot gnu.org
Target Milestone: ---
Created attachment 46360
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46360&action=edit
testcase
The attached code ICEs
./cc1plus repro.ii -fpreprocessed -g2 -O3 -std=gnu++17
void localLayer(long int, long int, void*) void driver(long int, long int,
void*)
Analyzing compilation unit
Performing interprocedural optimizations
<*free_lang_data> <visibility> <build_ssa_passes> <opt_local_passes>during
GIMPLE pass: einline
repro.ii:12:13: internal compiler error: in make_ssa_name_fn, at
tree-ssanames.c:268
12 | localLayer(X, Y, region);
| ~~~~~~~~~~^~~~~~~~~~~~~~
0x1795f6a make_ssa_name_fn(function*, tree_node*, gimple*, unsigned int)
../../../src/gcc/tree-ssanames.c:268
0x1525ab5 make_ssa_name
../../../src/gcc/tree-ssanames.h:114
0x1526ae5 remap_ssa_name
../../../src/gcc/tree-inline.c:246
0x152be34 copy_tree_body_r(tree_node**, int*, void*)
../../../src/gcc/tree-inline.c:1229
We're attempting to remap an ssaname that has already been released by
release_ssa_name_fn. That results in error_mark being passed as the type.
notice we're creating an array of runtime-defined dimensions, which is a gnu
extension.
GCC 8 ICEs. I've not tried earlier.
