ASM_OUTPUT_ALIGN aborts on HP 9000/43S (unnecessarily?)

[Dietmar Schindler]

GCC version 2.95.2
host m68k-hp-hpux9.03

Dear GCC maintainers,

when I on our HP 9000/43S

make LANGUAGES=c

it fails with

for name in _eh; \
do \
  echo ${name}; \
  /res4/unix/gcc-2.95.2/gcc/xgcc -B/res4/unix/gcc-2.95.2/gcc/
-B/usr/local/m68k-hp-hpux9.03/bin/ -I/usr/local/m68k-hp-hpux9.03/include
-O2   -DIN_GCC     -g -I./include   -g1  -DIN_LIBGCC2
-D__GCC_FLOAT_NOT_NEEDED   -fexceptions -I. -I. -I./config
-I./../include -c \
      -DL${name} ./libgcc2.c -o ${name}.o; \
  if [ $? -eq 0 ] ; then true; else exit 1; fi; \
  ar rc tmplibgcc2.a ${name}.o; \
  rm -f ${name}.o; \
done
_eh
cc1: warning: `-g' not supported by this configuration of GCC
cc1: warning: `-g1' not supported by this configuration of GCC
./libgcc2.c:4015: Internal compiler error at dwarf2out.c:1727

make[1]: *** [libgcc2.a] Error 1
make[1]: Leaving directory `/res4/unix/gcc-2.95.2/gcc'
make: *** [all-gcc] Error 2

This is because dwarf2out.c:1727 reads

      ASM_OUTPUT_ALIGN (asm_out_file, floor_log2 (PTR_SIZE));

which expands to

        if (( floor_log2_wide ((unsigned int) ((32 / 8)))) ==
1)                            fprintf (asm_out_file, "\tlalign 2\n"); 
else if (( floor_log2_wide ((unsigned int) ((32 / 8)))) !=
0)                      fatal ("Internal compiler error at
%s:%d\n",          trim_filename ("dwarf2out.c"), 1727);;

according to the macro definition in "gcc/config/m68k/hp320.h"

#define ASM_OUTPUT_ALIGN(FILE,LOG)      \
  if ((LOG) == 1)                       \
    fprintf (FILE, "\tlalign 2\n");     \
  else if ((LOG) != 0)                  \
    abort ();

It appears to me that this is a case where too much error checking does
more harm than too little, since the HP-UX assembler is well capable of
the alignment value of 4. So I suggest to change the macro simply to

#define ASM_OUTPUT_ALIGN(FILE, LOG) fprintf(FILE, "\tlalign %d\n",
1<<(LOG))

Regards,
Dietmar Schindler