https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123264
Bug ID: 123264
Summary: d: Infinite loop in dump_generic_node
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: d
Assignee: ibuclaw at gdcproject dot org
Reporter: ibuclaw at gcc dot gnu.org
Target Milestone: ---
Requires address to be taken by a field, and parameter to be `const`.
```
struct Dump
{
void infinite(const Dump) { }
auto fn = &infinite;
}
```
Compiling with any dump flag (-fdump-tree-original=stdout) and compiler enters
infinite loop between print_struct_decl and dump_function_declaration.
bt
```
#0 dump_function_declaration (pp=pp@entry=0x3c296b0,
node=node@entry=0x7ffff77521f8, spc=spc@entry=4, flags=flags@entry=100663296)
at ../../gcc/tree-pretty-print.cc:372
#1 0x0000000001666c95 in dump_generic_node (pp=pp@entry=0x3c296b0,
node=0x7ffff77522a0, spc=spc@entry=4, flags=flags@entry=100663296,
is_stmt=is_stmt@entry=false) at ../../gcc/tree-pretty-print.cc:2418
#2 0x000000000166f591 in print_declaration (pp=pp@entry=0x3c296b0,
t=t@entry=0x7ffff773f820, spc=spc@entry=4, flags=flags@entry=100663296) at
../../gcc/tree-pretty-print.cc:4546
#3 0x000000000166fb22 in print_struct_decl (pp=pp@entry=0x3c296b0,
node=node@entry=0x7ffff7752150, spc=spc@entry=2, flags=flags@entry=100663296)
at ../../gcc/tree-pretty-print.cc:4631
#4 0x0000000001665f04 in dump_generic_node (pp=pp@entry=0x3c296b0,
node=0x7ffff7752150, spc=spc@entry=2, flags=flags@entry=100663296,
is_stmt=is_stmt@entry=false) at ../../gcc/tree-pretty-print.cc:2518
#5 0x000000000166ebd7 in dump_function_declaration (pp=pp@entry=0x3c296b0,
node=node@entry=0x7ffff77521f8, spc=spc@entry=2, flags=flags@entry=100663296)
at ../../gcc/tree.h:3752
#6 0x0000000001666c95 in dump_generic_node (pp=pp@entry=0x3c296b0,
node=0x7ffff77522a0, spc=spc@entry=2, flags=flags@entry=100663296,
is_stmt=is_stmt@entry=false) at ../../gcc/tree-pretty-print.cc:2418
#7 0x000000000166f591 in print_declaration (pp=pp@entry=0x3c296b0,
t=t@entry=0x7ffff773f820, spc=spc@entry=2, flags=flags@entry=100663296) at
../../gcc/tree-pretty-print.cc:4546
#8 0x000000000166fb22 in print_struct_decl (pp=pp@entry=0x3c296b0,
node=node@entry=0x7ffff7752150, spc=spc@entry=0, flags=flags@entry=100663296)
at ../../gcc/tree-pretty-print.cc:4631
#9 0x0000000001665f04 in dump_generic_node (pp=0x3c296b0, node=0x7ffff7752150,
spc=spc@entry=0, flags=100663296, is_stmt=is_stmt@entry=false) at
../../gcc/tree-pretty-print.cc:2518
#10 0x00000000016693b4 in print_generic_expr (file=<optimized out>,
t=<optimized out>, flags=<optimized out>) at ../../gcc/tree-pretty-print.cc:174
#11 0x00000000015af292 in dump_function_to_file
(fndecl=fndecl@entry=0x7ffff773db00, file=file@entry=0x7ffff7ac05c0
<_IO_2_1_stdout_>, flags=100663296) at ../../gcc/tree.h:3898
#12 0x0000000000fca778 in dump_function (phase=phase@entry=4,
fn=fn@entry=0x7ffff773db00) at ../../gcc/dumpfile.cc:2099
#13 0x0000000000ea80bd in finish_function (old_context=old_context@entry=0x0)
at ../../gcc/d/decl.cc:2170
#14 0x0000000000eb0ea1 in DeclVisitor::visit (this=<optimized out>,
d=0x7ffff5e97000) at ../../gcc/d/decl.cc:1105
```
