Attachment 8511 Details for Bug 20725 – frefixes.diff

[patch] frefixes.diff

frefixes.diff (text/x-patch), 1.90 KB, created by Daniel Berlin on 2005-04-02 14:32:29 UTC

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Creator: Daniel Berlin

Created: 2005-04-02 14:32:29 UTC

Size: 1.90 KB

patch

obsolete

>Index: tree-ssa-pre.c
>===================================================================
>RCS file: /cvs/gcc/gcc/gcc/tree-ssa-pre.c,v
>retrieving revision 2.36.2.16
>diff -u -p -r2.36.2.16 tree-ssa-pre.c
>--- tree-ssa-pre.c	1 Apr 2005 17:10:33 -0000	2.36.2.16
>+++ tree-ssa-pre.c	2 Apr 2005 14:31:35 -0000
>@@ -1777,13 +1777,11 @@ add_to_sets (tree var, tree expr, vuse_o
> /* Given a unary or binary expression EXPR, create and return a new
>    expression with the same structure as EXPR but with its operands
>    replaced with the value handles of each of the operands of EXPR.
>-   Insert EXPR's operands into the EXP_GEN set for BLOCK.
>-
>-   VUSES represent the virtual use operands associated with EXPR (if
>-   any). They are used when computing the hash value for EXPR.  */
>+   Insert EXPR's operands into the EXP_GEN set for BLOCK. */
> 
> static inline tree
>-create_value_expr_from (tree expr, basic_block block, vuse_optype vuses)
>+create_value_expr_from (tree expr, basic_block block)
>+
> {
>   int i;
>   enum tree_code code = TREE_CODE (expr);
>@@ -1822,8 +1820,15 @@ create_value_expr_from (tree expr, basic
> 	  return NULL;
> 	}
> 
>+      /* Recursively value-numberize reference ops */
>+      if (TREE_CODE_CLASS (TREE_CODE (op)) == tcc_reference)
>+	{
>+	  tree tempop = create_value_expr_from (op, block);
>+	  op = tempop ? tempop : op;
>+	}
>+
>       /* Create a value handle for OP and add it to VEXPR.  */
>-      val = vn_lookup_or_add (op, vuses);
>+      val = vn_lookup_or_add (op, NULL);
> 
>       if (!is_undefined_value (op))
> 	value_insert_into_set (EXP_GEN (block), op);
>@@ -1939,7 +1944,7 @@ compute_avail (void)
> 		     create a duplicate expression with the operands
> 		     replaced with the value handles of the original
> 		     RHS.  */
>-		  tree newt = create_value_expr_from (rhs, block, vuses);
>+		  tree newt = create_value_expr_from (rhs, block);
> 		  if (newt)
> 		    {
> 		      add_to_sets (lhs, newt, vuses, TMP_GEN (block),

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Attachments on bug 20725: 8511