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re PR rtl-optimization/13931 (combiner much slower on big basic blocks)
authorIan Lance Taylor <ian@airs.com>
Tue, 11 Oct 2005 23:45:54 +0000 (23:45 +0000)
committerIan Lance Taylor <ian@gcc.gnu.org>
Tue, 11 Oct 2005 23:45:54 +0000 (23:45 +0000)
commit4bbae09f178ab7f11dbb4469604f347f615f686e
tree8946bf41e986a0c5163c45223fe9913547fc9cabtree
parenta2694f689cbb6c4780c2aba88c8462c8059cc182commit | diff
re PR rtl-optimization/13931 (combiner much slower on big basic blocks)

PR rtl-optimization/13931
* combine.c: Revert patch of 2003-05-14, and:
(try_combine): Only set elim_i1 and elim_i2 if the destination is
completely killed in the appropriate insn.
(distribute_notes): Don't skip multiple hard register test for
elim_i1 and elim_i2.

From-SVN: r105275
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gcc/combine.c diff | blob | history