x86 PIC regressions

[H.J. Lu]

> This must not be the one.  I just applied that patch to my tree on
> my i686-pc-linux-gnu, rebuilt it, and reran the above command.  The
> compiler still hari-karis:
> 
> Executing on host: /home/robertl/tmp/negcs/gcc/xgcc -B/home/robertl/tmp/negcs/gc
> c/ /play/egcs/gcc/testsuite/gcc.c-torture/execute/930106-1.c  -w  -O0  -fPIC  -l
> m   -o /home/robertl/tmp/negcs/gcc/testsuite/930106-1.x0
> compiler exited with status 1
> output is:
> /play/egcs/gcc/testsuite/gcc.c-torture/execute/930106-1.c: In function `main':
> /play/egcs/gcc/testsuite/gcc.c-torture/execute/930106-1.c:27: internal error--un
> recognizable insn:
> (insn 12 11 13 (set:DF (reg:DF 23)
>         (mem/u:DF (symbol_ref/u:SI ("*.LC0")))) -1 (nil)
>     (expr_list:REG_EQUAL (const_double:DF (mem/u:DF (symbol_ref/u:SI ("*.LC0")))
>  0 0 1073790976)
>         (nil)))
> /play/egcs/gcc/toplev.c:1360: Internal compiler error in function fatal_insn
> 
> FAIL: gcc.c-torture/execute/930106-1.c compilation,  -O0
> 
> 
>difference  

Executing on host: /home/work/build/bin/egcs-1.1.orig/gcc/xgcc -B/home/work/build/bin/egcs-1.1.orig/gcc/ /home/work/build/src/egcs-1.1/gcc/testsuite/gcc.c-torture/execute/930106-1.c  -w  -O0  -fPIC  -lm   -o /home/work/build/bin/egcs-1.1.orig/gcc/testsuite/930106-1.x0   
PASS: gcc.c-torture/execute/930106-1.c compilation,  -O0 
PASS: gcc.c-torture/execute/930106-1.c execution,  -O0 
Executing on host: /home/work/build/bin/egcs-1.1.orig/gcc/xgcc -B/home/work/build/bin/egcs-1.1.orig/gcc/ /home/work/build/src/egcs-1.1/gcc/testsuite/gcc.c-torture/execute/930106-1.c  -w  -O1  -fPIC  -lm   -o /home/work/build/bin/egcs-1.1.orig/gcc/testsuite/930106-1.x1   
PASS: gcc.c-torture/execute/930106-1.c compilation,  -O1 
PASS: gcc.c-torture/execute/930106-1.c execution,  -O1 
Executing on host: /home/work/build/bin/egcs-1.1.orig/gcc/xgcc -B/home/work/build/bin/egcs-1.1.orig/gcc/ /home/work/build/src/egcs-1.1/gcc/testsuite/gcc.c-torture/execute/930106-1.c  -w  -O2  -fPIC  -lm   -o /home/work/build/bin/egcs-1.1.orig/gcc/testsuite/930106-1.x2   
PASS: gcc.c-torture/execute/930106-1.c compilation,  -O2 
PASS: gcc.c-torture/execute/930106-1.c execution,  -O2 
Executing on host: /home/work/build/bin/egcs-1.1.orig/gcc/xgcc -B/home/work/build/bin/egcs-1.1.orig/gcc/ /home/work/build/src/egcs-1.1/gcc/testsuite/gcc.c-torture/execute/930106-1.c  -w  -O2 -fomit-frame-pointer -finline-functions  -fPIC  -lm   -o /home/work/build/bin/egcs-1.1.orig/gcc/testsuite/930106-1.x3   
PASS: gcc.c-torture/execute/930106-1.c compilation,  -O2 -fomit-frame-pointer -finline-functions 
PASS: gcc.c-torture/execute/930106-1.c execution,  -O2 -fomit-frame-pointer -finline-functions 
Executing on host: /home/work/build/bin/egcs-1.1.orig/gcc/xgcc -B/home/work/build/bin/egcs-1.1.orig/gcc/ /home/work/build/src/egcs-1.1/gcc/testsuite/gcc.c-torture/execute/930106-1.c  -w  -O2 -g  -fPIC  -lm   -o /home/work/build/bin/egcs-1.1.orig/gcc/testsuite/930106-1.x4   
PASS: gcc.c-torture/execute/930106-1.c compilation,  -O2 -g 
PASS: gcc.c-torture/execute/930106-1.c execution,  -O2 -g 
Executing on host: /home/work/build/bin/egcs-1.1.orig/gcc/xgcc -B/home/work/build/bin/egcs-1.1.orig/gcc/ /home/work/build/src/egcs-1.1/gcc/testsuite/gcc.c-torture/execute/930106-1.c  -w  -Os  -fPIC  -lm   -o /home/work/build/bin/egcs-1.1.orig/gcc/testsuite/930106-1.x5   
PASS: gcc.c-torture/execute/930106-1.c compilation,  -Os 
PASS: gcc.c-torture/execute/930106-1.c execution,  -Os 

> 
> Were the failures you cite below from a straight make check, or did you
> add the -fPIC stuff as described above?
> 

I tried -fPIC with "make check" for virgin egcs 1.1 prerelease on
RedHat 5.1/i686. I didn't see any regression bewteen with -fPIC
and without -fPIC.

BTW, I am using binutils 2.9.1.0.11 and glibc 2.0 980812.

H.J.