git.ipfire.org Git - thirdparty/gcc.git/commit

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author	Jeff Law <law@redhat.com>
	Fri, 29 Sep 2017 18:20:41 +0000 (12:20 -0600)
committer	Jeff Law <law@gcc.gnu.org>
	Fri, 29 Sep 2017 18:20:41 +0000 (12:20 -0600)
commit	e9d297a15d68121ba5bdd5a76ea71c1916180622
tree	ec865a0c1b998f4757f69e3cea2d7245e66f6287	tree \| snapshot
parent	79310774839953f17cc5aae75ab332c788784466	commit \| diff

sbitmap.c (bitmap_bit_in_range_p): New function.

* sbitmap.c (bitmap_bit_in_range_p): New function.
* sbitmap.h (bitmap_bit_in_range_p): Prototype.
* tree-ssa-dse.c (live_bytes_read): New function.
(dse_classify_store): Ignore reads of dead bytes.

* testsuite/gcc.dg/tree-ssa/ssa-dse-26.c: New test.

From-SVN: r253305

gcc/ChangeLog		diff \| blob \| blame \| history
gcc/sbitmap.c		diff \| blob \| blame \| history
gcc/sbitmap.h		diff \| blob \| blame \| history
gcc/testsuite/ChangeLog		diff \| blob \| blame \| history
gcc/testsuite/gcc.dg/tree-ssa/ssa-dse-26.c	[new file with mode: 0644]	blob
gcc/tree-ssa-dse.c		diff \| blob \| blame \| history

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