On 32-bit hppa*-hpux*, global common data is used for one-only support. The
warning in
pa_asm_output_aligned_common() causes numerous tests in the libstdc++-v3 to
fail due to
excess errors.
The only code that requires more alignment is the ldcw semaphore instruction,
so I believe
we don't need the warning.
Tested on hppa2.0w-hp-hpux11.11 and hppa64-hp-hpux11.11. Committed to trunk.
Dave
---
Don't warn when alignment of global common data exceeds maximum alignment.
2021-08-21 John David Anglin <dang...@gcc.gnu.org>
gcc/ChangeLog:
* config/pa/pa.c (pa_asm_output_aligned_common): Remove warning.
diff --git a/gcc/config/pa/pa.c b/gcc/config/pa/pa.c
index 46194ba395d..06143023b46 100644
--- a/gcc/config/pa/pa.c
+++ b/gcc/config/pa/pa.c
@@ -9080,9 +9080,7 @@ pa_asm_output_aligned_common (FILE *stream,
max_common_align = TARGET_64BIT ? 128 : (size >= 4096 ? 256 : 64);
if (align > max_common_align)
{
- warning (0, "alignment (%u) for %s exceeds maximum alignment "
- "for global common data. Using %u",
- align / BITS_PER_UNIT, name, max_common_align / BITS_PER_UNIT);
+ /* Alignment exceeds maximum alignment for global common data. */
align = max_common_align;
}
