https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69334
Bug ID: 69334
Summary: FAIL: g++.dg/guality/pr55665.C -O2 line 23 p == 40
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: danglin at gcc dot gnu.org
Target Milestone: ---
Host: hppa-unknown-linux-gnu
Target: hppa-unknown-linux-gnu
Build: hppa-unknown-linux-gnu
Created attachment 37383
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37383&action=edit
assembler output
spawn -ignore SIGHUP /home/dave/gnu/gcc/objdir/gcc/testsuite/g++/../../xg++
-B/h
ome/dave/gnu/gcc/objdir/gcc/testsuite/g++/../../
/home/dave/gnu/gcc/gcc/gcc/test
suite/g++.dg/guality/pr55665.C -fno-diagnostics-show-caret
-fdiagnostics-color=n
ever -nostdinc++
-I/home/dave/gnu/gcc/objdir/hppa-linux-gnu/libstdc++-v3/include
/hppa-linux-gnu -I/home/dave/gnu/gcc/objdir/hppa-linux-gnu/libstdc++-v3/include
-I/home/dave/gnu/gcc/gcc/libstdc++-v3/libsupc++
-I/home/dave/gnu/gcc/gcc/libstdc
++-v3/include/backward -I/home/dave/gnu/gcc/gcc/libstdc++-v3/testsuite/util
-fme
ssage-length=0 -O2 -g
-L/home/dave/gnu/gcc/objdir/hppa-linux-gnu/./libstdc++-v3/
src/.libs -B/home/dave/gnu/gcc/objdir/hppa-linux-gnu/./libstdc++-v3/src/.libs
-L
/home/dave/gnu/gcc/objdir/hppa-linux-gnu/./libstdc++-v3/src/.libs -lm -o
./pr556
65.exe
PASS: g++.dg/guality/pr55665.C -O2 (test for excess errors)
Setting LD_LIBRARY_PATH to
.:/home/dave/gnu/gcc/objdir/hppa-linux-gnu/./libstdc++-v3/src/.libs:/home/dave/gnu/gcc/objdir/hppa-linux-gnu/./libstdc++-v3/src/.libs:/home/dave/gnu/gcc/objdir/gcc:.:/home/dave/gnu/gcc/objdir/hppa-linux-gnu/./libstdc++-v3/src/.libs:/home/dave/gnu/gcc/objdir/hppa-linux-gnu/./libstdc++-v3/src/.libs:/home/dave/gnu/gcc/objdir/gcc:/home/dave/gnu/gcc/objdir/hppa-linux-gnu/libstdc++-v3/src/.libs:/home/dave/gnu/gcc/objdir/hppa-linux-gnu/libssp/.libs:/home/dave/gnu/gcc/objdir/hppa-linux-gnu/libgomp/.libs:/home/dave/gnu/gcc/objdir/hppa-linux-gnu/libatomic/.libs:/home/dave/gnu/gcc/objdir/./gcc:/home/dave/gnu/gcc/objdir/./prev-gcc:/home/dave/gnu/gcc/objdir/hppa-linux-gnu/libstdc++-v3/src/.libs:/home/dave/gnu/gcc/objdir/hppa-linux-gnu/libssp/.libs:/home/dave/gnu/gcc/objdir/hppa-linux-gnu/libgomp/.libs:/home/dave/gnu/gcc/objdir/hppa-linux-gnu/libatomic/.libs:/home/dave/gnu/gcc/objdir/./gcc:/home/dave/gnu/gcc/objdir/./prev-gcc
spawn [open ...]
PASS: g++.dg/guality/pr55665.C -O2 execution test
Spawning: gdb -nx -nw -quiet -x pr55665.gdb ./pr55665.exe
spawn gdb -nx -nw -quiet -x pr55665.gdb ./pr55665.exe
Reading symbols from ./pr55665.exe...done.
Breakpoint 1 at 0x10880: file
/home/dave/gnu/gcc/gcc/gcc/testsuite/g++.dg/guality/pr55665.C, line 23.
Breakpoint 1, A::A (this=0xfd706588, x=<optimized out>)
at /home/dave/gnu/gcc/gcc/gcc/testsuite/g++.dg/guality/pr55665.C:23
23 foo (p); // { dg-final { gdb-test 23 "p" "40" } }
$1 = 0
$2 = 40
0 != 40
FAIL: g++.dg/guality/pr55665.C -O2 line 23 p == 40
Similar fail:
FAIL: g++.dg/guality/pr55665.C -O3 -g line 23 p == 40
The test fails because the store to p has been optimized away and gdb
looks for p in memory. At lower optimizations, this occurs just after
bar is called.
