https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94253
Bug ID: 94253
Summary: FAIL: gfortran.dg/bind_c_coms.f90 -O0 (test for
excess errors)
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: danglin at gcc dot gnu.org
Target Milestone: ---
Host: hppa64-hp-hpux11.11
Target: hppa64-hp-hpux11.11
Build: hppa64-hp-hpux11.11
spawn /test/gnu/gcc/objdir/gcc/testsuite/gfortran/../../gfortran
-B/test/gnu/gcc/objdir/gcc/testsuite/gfortran/../../
-B/test/gnu/gcc/objdir/hppa64-hp-hpux11.11/./libgfortran/
/test/gnu/gcc/gcc/gcc/testsuite/gfortran.dg/bind_c_coms.f90
-fno-diagnostics-show-caret -fno-diagnostics-show-line-numbers
-fdiagnostics-color=never -fdiagnostics-urls=never -O0 -w
/test/gnu/gcc/gcc/gcc/testsuite/gfortran.dg/bind_c_coms_driver.c
-B/test/gnu/gcc/objdir/hppa64-hp-hpux11.11/./libgfortran/.libs
-L/test/gnu/gcc/objdir/hppa64-hp-hpux11.11/./libgfortran/.libs
-L/test/gnu/gcc/objdir/hppa64-hp-hpux11.11/./libgfortran/.libs
-L/test/gnu/gcc/objdir/hppa64-hp-hpux11.11/./libatomic/.libs
-B/test/gnu/gcc/objdir/hppa64-hp-hpux11.11/./libquadmath/.libs
-L/test/gnu/gcc/objdir/hppa64-hp-hpux11.11/./libquadmath/.libs
-L/test/gnu/gcc/objdir/hppa64-hp-hpux11.11/./libquadmath/.libs -lm -o
./bind_c_coms.exe
ld: (Warning) Symbol "com" in "/var/tmp//cc14WyWs.o" does not satisfy the
required 16-byte alignment in "/var/tmp//cc4g1Pgg.o".
1 warnings.
output is:
ld: (Warning) Symbol "com" in "/var/tmp//cc14WyWs.o" does not satisfy the
required 16-byte alignment in "/var/tmp//cc4g1Pgg.o".
1 warnings.
FAIL: gfortran.dg/bind_c_coms.f90 -O0 (test for excess errors)
Excess errors:
ld: (Warning) Symbol "com" in "/var/tmp//cc14WyWs.o" does not satisfy the
required 16-byte alignment in "/var/tmp//cc4g1Pgg.o".
1 warnings.
Fails at all optimizations.
We now have in bind_c_coms_driver.s:
.section .bss
.align 8
.type com, @object
.size com, 16
.align 8
com:
.block 16
We used to have:
.section .bss
com .comm 16
The later provides 16-byte alignment.
Looks to me like there are problems with both pa_asm_output_aligned_bss() and
pa_asm_output_aligned_common(). It looks like allocations in the BSS need to
be aligned to a power of 2 alignment greater than the size of the block.
