[Bug target/36551] New: Failure to compile __thread variable.

[Bug target/36551] New: Failure to compile __thread variable.

[carlos at systemhalted dot org]

Steps to reproduce:

cat >> test.c <<EOF
__thread int foo;

void bar (void) {
  foo = 2;
}
EOF

hppa64-linux-gnu-gcc-4.3.1 -S test.c
test.c: In function 'bar':
test.c:5: error: unrecognizable insn:
(insn 6 5 7 3 test.c:4 (set (reg:DI 67)
        (unspec:SI [
                (const_int 0 [0x0])
            ] 3)) -1 (nil))
test.c:5: internal compiler error: in extract_insn, at recog.c:1990
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Expected:
- Compiler correctly compiles the code.

Observed:
- ICE trying to compile code with __thread keyword.

hppa does have support for thread local storage, but it's never been tested on
the 64-bit compiler.

I came across this error while trying to port glibc to hppa64-linux-gnu during
a 64-bit userspace bring-up.


-- 
           Summary: Failure to compile __thread variable.
           Product: gcc
           Version: 4.3.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: carlos at systemhalted dot org
 GCC build triplet: hppa-linux-gnu
  GCC host triplet: hppa64-linux-gnu
GCC target triplet: hppa64-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36551

[Bug target/36551] Failure to compile __thread variable.

[dave at hiauly1 dot hia dot nrc dot ca]

------- Comment #1 from dave at hiauly1 dot hia dot nrc dot ca  2008-06-17 23:42 -------
Subject: Re:   New: Failure to compile __thread variable.

> hppa64-linux-gnu-gcc-4.3.1 -S test.c

There is no TLS support for the 64-bit compiler.  This is an enhancement
request.

Dave


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36551

[Bug target/36551] Failure to compile __thread variable.

[carlos at systemhalted dot org]

------- Comment #2 from carlos at systemhalted dot org  2008-06-18 02:35 -------
Yes, I just realized there were no TARGET_64BIT TLS patterns in
config/pa/pa.md. 

I'm closing the bug as invalid. I'll take this up seperately. We'll have to
define call sequences for the 64-bit address loads etcs.


-- 

carlos at systemhalted dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |INVALID


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36551