Executing on host: /home/dave/gnu/gcc-4.5/objdir/gcc/xgcc
-B/home/dave/gnu/gcc-4.5/objdir/gcc/
/home/dave/gnu/gcc-4.5/gcc/gcc/testsuite/gcc.c-torture/execute/20061031-1.c -w
-Os -lm -o /home/dave/gnu/gcc-4.5/objdir/gcc/testsuite/gcc/2
0061031-1.x7 (timeout = 300)
PASS: gcc.c-torture/execute/20061031-1.c compilation, -Os Setting
LD_LIBRARY_PATH to
:/home/dave/gnu/gcc-4.5/objdir/gcc::/home/dave/gnu/gcc-4.5/objdir/gcc:/home/dave/gnu/gcc-4.5/objdir/hppa-linux/libstdc++-v3/.libs:/home/dave/gnu/gcc-4.5/objdir/hppa-linux/libmudflap/.libs:/home/dave/gnu/gcc-4.5/objdir/hppa-linux/libssp/.libs:/home/dave/gnu/gcc-4.5/objdir/hppa-linux/libgomp/.l
ibs:/home/dave/gnu/gcc-4.5/objdir/./gcc:/home/dave/gnu/gcc-4.5/objdir/./prev-gcc
FAIL: gcc.c-torture/execute/20061031-1.c execution, -Os
d...@hiauly6:~/gnu/gcc-4.5/objdir/gcc$ ./xgcc -B./ -v
Reading specs from ./specs
Target: hppa-linux
Configured with: ../gcc/configure --with-gnu-as --with-gnu-ld --enable-shared
--prefix=/home/dave/opt/gnu/gcc/gcc-4.4.0
--with-local-prefix=/home/dave/opt/gnu --enable-threads=posix
--enable-__cxa_atexit --build=hppa-linux --enable-clocale=gnu
--enable-java-gc=boehm --enable-java-awt=xlib
--enable-languages=c,c++,objc,fortran,obj-c++,java,ada
Thread model: posix
gcc version 4.5.0 20090616 (experimental) [trunk revision 148510] (GCC)
The problem is the following assembly code:
0x000104e4 <f+56>: cmpb,<>,n ret0,r19,0x104e8 <f+60>
0x000104e8 <f+60>: b,l 0x104a8 <ff>,rp
0x000104ec <f+64>: ldi 1,r26
This is not supposed to happen:
/* A conditional branch to the following instruction (e.g. the delay slot)
is asking for a disaster. This can happen when not optimizing and
when jump optimization fails.
While it is usually safe to emit nothing, this can fail if the
preceding instruction is a nullified branch with an empty delay
slot and the same branch target as this branch. We could check
for this but jump optimization should eliminate nop jumps. It
is always safe to emit a nop. */
if (next_real_insn (JUMP_LABEL (insn)) == next_real_insn (insn))
return "nop";
--
Summary: [4.5 Regression] FAIL: gcc.c-torture/execute/20061031-
1.c execution, -Os
Product: gcc
Version: 4.5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: danglin at gcc dot gnu dot org
GCC build triplet: hppa-unknown-linux-gnu
GCC host triplet: hppa-unknown-linux-gnu
GCC target triplet: hppa-unknown-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40468
