[committed] hppa: Don't warn when alignment of global common data exceeds maximum alignment

John David Anglin dave.anglin@bell.net
Sat Aug 21 17:52:18 GMT 2021


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  <danglin@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;
     }



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