emit-rtl.c (replace_equiv_address): New function.

	* emit-rtl.c (replace_equiv_address): New function.
	* expr.h (replace_equiv_address): New declaration.
	* explow.c (validize_mem): Call it instead of change_address and
	also call if -fforce-addr and address is constant.
	* expr.c: Replace more calls to change_address with adjust_address
	and/or replace_equiv_address or to validize_mem.
	* function.c, regmove.c, config/alpha/alpha.c: Likewise.
	* config/arm/arm.md, config/clipper/clipper.md: Likewise.
	* config/dsp16xx/dsp16xx.md, config/fr30/fr30.c: Likewise.
	* config/i370/i370.md, config/i860/i860.md: Likewise.
	* config/i960/i960.md, config/mips/mips.c: Likewise.
	* config/mips/mips.md, config/pa/pa.md: Likewise.
	* config/pdp11/pdp11.md, config/rs6000/rs6000.c: Likewise.
	* config/rs6000/rs6000.md, config/sh/sh.md: Likewise.

From-SVN: r43762

1 files changed, 6 insertions, 0 deletions

diff --git a/gcc/expr.h b/gcc/expr.h
index 9dff8e9..0e8f875 100644
--- a/gcc/expr.h
+++ b/gcc/expr.h
@@ -1154,6 +1154,12 @@ extern rtx change_address PARAMS ((rtx, enum machine_mode, rtx));
    to MODE and its address offset by OFFSET bytes.  */
 extern rtx adjust_address PARAMS ((rtx, enum machine_mode, HOST_WIDE_INT));
 
+/* Return a memory reference like MEMREF, but with its address changed to
+   ADDR.  The caller is asserting that the actual piece of memory pointed
+   to is the same, just the form of the address is being changed, such as
+   by putting something into a register.  */
+extern rtx replace_equiv_address PARAMS ((rtx, rtx));
+
 /* Return a memory reference like MEMREF, but which is known to have a
    valid address.  */
 extern rtx validize_mem PARAMS ((rtx));