Message ID | 20210107204804.3225215-1-dmalcolm@redhat.com |
---|---|
State | New |
Headers | show |
Series | [committed] analyzer: fix ICE when DECL_INITIAL is error_mark_node [PR98580] | expand |
diff --git a/gcc/analyzer/region.cc b/gcc/analyzer/region.cc index aefc389edd3..6db1fc91afd 100644 --- a/gcc/analyzer/region.cc +++ b/gcc/analyzer/region.cc @@ -969,6 +969,11 @@ decl_region::get_svalue_for_initializer (region_model_manager *mgr) const c.get_map ()); } + /* LTO can write out error_mark_node as the DECL_INITIAL for simple scalar + values (to avoid writing out an extra section). */ + if (init == error_mark_node) + return NULL; + if (TREE_CODE (init) == CONSTRUCTOR) return get_svalue_for_constructor (init, mgr); diff --git a/gcc/testsuite/gcc.dg/analyzer/pr98580-a.c b/gcc/testsuite/gcc.dg/analyzer/pr98580-a.c new file mode 100644 index 00000000000..d2b10d6df2f --- /dev/null +++ b/gcc/testsuite/gcc.dg/analyzer/pr98580-a.c @@ -0,0 +1,9 @@ +/* { dg-do link } */ +/* { dg-require-effective-target lto } */ +/* { dg-additional-options "-flto" } */ +/* { dg-additional-sources pr98580-b.c } */ + +int a; +int *p = &a; +int foo(); +int main() { return foo(); } diff --git a/gcc/testsuite/gcc.dg/analyzer/pr98580-b.c b/gcc/testsuite/gcc.dg/analyzer/pr98580-b.c new file mode 100644 index 00000000000..629ebcec3c8 --- /dev/null +++ b/gcc/testsuite/gcc.dg/analyzer/pr98580-b.c @@ -0,0 +1,2 @@ +extern int *p; +int foo() { return *p; }