Fix PR target/21412 on SPARC

[Eric Botcazou]

The compiler ICEs on TLS addresses with constant offsets.  The fix was 
shamelessly borrowed from the PPC variant, so I presume it is valid for all 
TLS models but a second option would be welcome. :-)

Tested on sparc-sun-solaris2.10, it fixes:

FAIL: gcc.dg/tls/opt-8.c (test for excess errors)
FAIL: gcc.dg/tls/opt-9.c (test for excess errors)

on mainline.  I don't intend to backport it to the 4.0 branch since the 
problem is not a regression.


2005-05-23  Eric Botcazou  <ebotcazou@libertysurf.fr>

	PR target/21412
	* config/sparc/sparc.h (SPARC_SYMBOL_REF_TLS_P): New macro
	* config/sparc/sparc-protos.h (tls_symbolic_operand): Delete.
	(sparc_tls_referenced_p): New prototype.
	* config/sparc/sparc.c (tls_symbolic_operand): Delete.
	(sparc_expand_move): Look for TLS addresses with constant offsets.
	(legitimate_constant_p): Use SPARC_SYMBOL_REF_TLS_P instead of
	tls_symbolic_operand.
	(legitimate_pic_operand_p): Likewise.
	(legitimate_address_p): Likewise.
	(legitimize_address): Likewise.
	(sparc_tls_symbol_ref_1): New function.
	(sparc_tls_referenced_p): New function.
	* config/sparc/predicates.md (tgd_symbolic_operand): Use
	SYMBOL_REF_TLS_MODEL instead of tls_symbolic_operand.
	(tld_symbolic_operand): Likewise.
	(tie_symbolic_operand): Likewise.
	(tle_symbolic_operand): Likewise.

	
-- 
Eric Botcazou
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