https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93319
Bug ID: 93319
Summary: -mtls-dialect=gnu2 doesn't work for x32
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: hjl.tools at gmail dot com
CC: ubizjak at gmail dot com
Target Milestone: ---
Target: x86-64
[hjl@gnu-cfl-2 tls-x32-ld]$ cat lib.c
#include <stdio.h>
static __thread int foo = 30;
int *
test (void)
{
printf ("foo: %d\n", foo);
return &foo;
}
[hjl@gnu-cfl-2 tls-x32-ld]$ make lib.o
gcc -mx32 -B./ -O2 -g -mtls-dialect=gnu2 -fPIC -c -o lib.o lib.c
lib.c: In function ‘test’:
lib.c:10:1: error: unrecognizable insn:
10 | }
| ^
(insn 6 5 7 2 (set (reg:SI 85)
(unspec:DI [
(symbol_ref:SI ("_TLS_MODULE_BASE_") [flags 0x10])
] UNSPEC_TLSDESC)) "lib.c":8:3 -1
(nil))
during RTL pass: vregs
lib.c:10:1: internal compiler error: in extract_insn, at recog.c:2310
