[PATCH] Fix SRA and initializers

[Andrew Pinski <pinskia at physics dot uc dot edu>]

I noticed when you have a complex initializer in a constant decl
and we decided to SRA the copy, we need to gimplify the initializer.
Since gimplify_stmt does not mark the temporary variables for renaming,
we get an ICE because the variables are not renamed.  The easy way and
correct way to fix this is to change over to use force_gimple_operand
instead of gimplify_stmt.

This fixes the Ada bootstrap failure on powerpc-darwin.

OK? Bootstrapped and tested on powerpc-darwin with no regressions.

Thanks,
Andrew Pinski

ChangeLog:

	* tree-sra.c (generate_one_element_init): Use force_gimple_operand
	instead of gimplify_stmt.
	(scalarize_init): Do not call
	push_gimplify_context/pop_gimplify_context.

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