------- Comment #12 from janis at gcc dot gnu dot org 2009-03-19 17:00 -------
I tested this patch, which I assume is what was described in comment #11:
Index: gcc/config/rs6000/rs6000.c
===================================================================
--- gcc/config/rs6000/rs6000.c (revision 144923)
+++ gcc/config/rs6000/rs6000.c (working copy)
@@ -5206,15 +5206,6 @@ rs6000_emit_move (rtx dest, rtx source,
&& ! legitimate_constant_pool_address_p (operands[1])
&& ! toc_relative_expr_p (operands[1]))
{
- /* Emit a USE operation so that the constant isn't deleted if
- expensive optimizations are turned on because nobody
- references it. This should only be done for operands that
- contain SYMBOL_REFs with CONSTANT_POOL_ADDRESS_P set.
- This should not be done for operands that contain LABEL_REFs.
- For now, we just handle the obvious case. */
- if (GET_CODE (operands[1]) != LABEL_REF)
- emit_use (operands[1]);
-
#if TARGET_MACHO
/* Darwin uses a special PIC legitimizer. */
if (DEFAULT_ABI == ABI_DARWIN && MACHOPIC_INDIRECT)
I bootstrapped all languages except Ada on powerpc64-unknown-linux-gnu and ran
the testsuite with -m32/-m64, and the only change was that test va-arg-trap-1
now passes.
--
janis at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |dje at gcc dot gnu dot org,
| |janis at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39254
