re PR rtl-optimization/20413 (VOIDmode LABEL_REFs are generated)

re PR rtl-optimization/20413 (VOIDmode LABEL_REFs are generated)

2005-04-25  J"orn Rennecke <joern.rennecke@st.com>
	    Stephen Clarke <stevec@superh.com>
	    Roger Sayle <roger@eyesopen.com>

	PR rtl-optimization/20413
	* cfgrtl.c (redirect_edge_and_branch): Use Pmode instead of
	VOIDmode for LABEL_REF.
	* final.c (shorten_branches): Likewise.
	* jump.c (mark_all_labels, redirect_exp_1): Likewise.
	* loop.c (reg_dead_after_loop): Likewise.
	* varasm.c (decode_addr_const): Likewise.
	* doc/rtl.texi: Document mode requirement for LABEL_REF.

Co-Authored-By: Roger Sayle <roger@eyesopen.com>
Co-Authored-By: Stephen Clarke <stevec@superh.com>
From-SVN: r98711