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Do not emit USE on a LABEL_REF 

From-SVN: r13695
This commit is contained in:
Michael Meissner 1997-03-06 22:28:22 +00:00
parent dfcf98915c
commit e035031935
1 changed files with 6 additions and 2 deletions
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8
gcc/config/rs6000/rs6000.md
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@ -5164,8 +5164,12 @@
{
/* Emit a USE operation so that the constant isn't deleted if
expensive optimizations are turned on because nobody
references it */
emit_insn (gen_rtx (USE, VOIDmode, operands[1]));
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_insn (gen_rtx (USE, VOIDmode, operands[1]));
/* If we are to limit the number of things we put in the TOC and
this is a symbol plus a constant we can add in one insn,