* stmt.c (expand_decl): Do set RTX_UNCHANGING_P for TREE_READONLY.
From-SVN: r31856
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Tue Feb 8 15:51:50 2000 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
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* stmt.c (expand_decl): Do set RTX_UNCHANGING_P for TREE_READONLY.
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2000-02-08 Zack Weinberg <zack@wolery.cumb.org>
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2000-02-08 Zack Weinberg <zack@wolery.cumb.org>
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* Makefile.in (GEN_PROTOS_OBJS): Remove libcpp.a.
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* Makefile.in (GEN_PROTOS_OBJS): Remove libcpp.a.
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@ -3868,15 +3868,9 @@ expand_decl (decl)
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if (TREE_THIS_VOLATILE (decl))
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if (TREE_THIS_VOLATILE (decl))
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MEM_VOLATILE_P (DECL_RTL (decl)) = 1;
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MEM_VOLATILE_P (DECL_RTL (decl)) = 1;
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#if 0 /* A variable is not necessarily unchanging
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just because it is const. RTX_UNCHANGING_P
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means no change in the function,
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not merely no change in the variable's scope.
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It is correct to set RTX_UNCHANGING_P if the variable's scope
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is the whole function. There's no convenient way to test that. */
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if (TREE_READONLY (decl))
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if (TREE_READONLY (decl))
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RTX_UNCHANGING_P (DECL_RTL (decl)) = 1;
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RTX_UNCHANGING_P (DECL_RTL (decl)) = 1;
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#endif
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}
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}
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/* Emit code to perform the initialization of a declaration DECL. */
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/* Emit code to perform the initialization of a declaration DECL. */
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