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tree-tailcall.c (find_tail_calls): Also fail is statement has volatile operands.

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* tree-tailcall.c (find_tail_calls): Also fail is statement has
	volatile operands.

From-SVN: r86938
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Richard Kenner 2004-09-01 23:07:52 +00:00 committed by Richard Kenner
parent 73022c2a43
commit ba2e294dfb
2 changed files with 6 additions and 2 deletions
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3
gcc/ChangeLog
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@ -1,5 +1,8 @@
2004-09-01 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* tree-tailcall.c (find_tail_calls): Also fail is statement has
volatile operands.
* tree-ssa.c (propagate_into_addr): Properly test for LHR.
* doc/c-tree.texi: Document new operands for ARRAY_REF and

5
gcc/tree-tailcall.c
View File

@ -395,11 +395,12 @@ find_tail_calls (basic_block bb, struct tailcall **ret)
if (TREE_CODE (call) == CALL_EXPR)
break;
/* If the statement has virtual operands, fail. */
/* If the statement has virtual or volatile operands, fail. */
ann = stmt_ann (stmt);
if (NUM_V_MAY_DEFS (V_MAY_DEF_OPS (ann))
|| NUM_V_MUST_DEFS (V_MUST_DEF_OPS (ann))
|| NUM_VUSES (VUSE_OPS (ann)))
|| NUM_VUSES (VUSE_OPS (ann))
|| ann->has_volatile_ops)
return;
}