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author	Roger Sayle <roger@eyesopen.com>
	Thu, 22 Jan 2004 12:44:54 +0000 (12:44 +0000)
committer	Roger Sayle <sayle@gcc.gnu.org>
	Thu, 22 Jan 2004 12:44:54 +0000 (12:44 +0000)
commit	bb51e27026e8f068ad191b7200f51439aaa292af
tree	3c307eaa8d9217b307aed75ea2e9ba109fafafb0	tree
parent	9c49953c15b1071a2a44135143b463a15b40687a	commit \| diff

rtlanal.c (subreg_lsb_1): New function split out from subreg_lsb.

* rtlanal.c (subreg_lsb_1): New function split out from subreg_lsb.
(subreg_lsb): Change to call new subreg_lsb_1 helper function.
* rtl.h (subreg_lsb_1): Prototype here.
* simplify-rtx.c (simplify_subreg): Optimize subregs of zero and
sign extensions.

Co-Authored-By: Paolo Bonzini <bonzini@gnu.org>
From-SVN: r76352

gcc/ChangeLog		diff \| blob \| blame \| history
gcc/rtl.h		diff \| blob \| blame \| history
gcc/rtlanal.c		diff \| blob \| blame \| history
gcc/simplify-rtx.c		diff \| blob \| blame \| history

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