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tree-ssa-sccvn.c (copy_reference_ops_from_ref): Handle constants and ohter expected operations explicitly...

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2007-07-01  Daniel Berlin  <dberlin@dberlin.org>

	* tree-ssa-sccvn.c (copy_reference_ops_from_ref): Handle constants
	and ohter expected operations explicitly, change default to
	gcc_unreachable.

From-SVN: r126179
This commit is contained in:
Daniel Berlin 2007-07-01 23:41:38 +00:00 • committed by Daniel Berlin
parent 10ae7c7b78
commit 4794afa5e0
2 changed files with 23 additions and 2 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2007-07-01 Daniel Berlin <dberlin@dberlin.org>
* tree-ssa-sccvn.c (copy_reference_ops_from_ref): Handle constants
and other expected operations explicitly, change default to
gcc_unreachable.
2007-07-01 Daniel Jacobowitz <dan@codesourcery.com>
* config/arm/arm.c (arm_cannot_copy_insn_p): Do not expect a

19
gcc/tree-ssa-sccvn.c
View file

@ -524,6 +524,10 @@ copy_reference_ops_from_ref (tree ref, VEC(vn_reference_op_s, heap) **result)
temp.op0 = TREE_OPERAND (ref, 1);
temp.op1 = TREE_OPERAND (ref, 3);
break;
case STRING_CST:
case INTEGER_CST:
case COMPLEX_CST:
case VECTOR_CST:
case VALUE_HANDLE:
case VAR_DECL:
case PARM_DECL:
@ -532,12 +536,23 @@ copy_reference_ops_from_ref (tree ref, VEC(vn_reference_op_s, heap) **result)
case SSA_NAME:
temp.op0 = ref;
break;
default:
/* These are only interesting for their operands, their
existence, and their type. They will never be the last
ref in the chain of references (IE they require an
operand), so we don't have to put anything
for op* as it will be handled by the iteration */
case IMAGPART_EXPR:
case REALPART_EXPR:
case VIEW_CONVERT_EXPR:
case ADDR_EXPR:
break;
default:
gcc_unreachable ();
}
VEC_safe_push (vn_reference_op_s, heap, *result, &temp);
if (REFERENCE_CLASS_P (ref))
if (REFERENCE_CLASS_P (ref) || TREE_CODE (ref) == ADDR_EXPR)
ref = TREE_OPERAND (ref, 0);
else
ref = NULL_TREE;