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re PR debug/42728 ("-fcompare-debug failure (length)" at -O1)
authorJakub Jelinek <jakub@redhat.com>
Tue, 19 Jan 2010 12:38:25 +0000 (13:38 +0100)
committerJakub Jelinek <jakub@gcc.gnu.org>
Tue, 19 Jan 2010 12:38:25 +0000 (13:38 +0100)
commit2178b0f93ae3ae2b2951e026e3f7857780cf2649
tree4b37170db29f51db95ef0a2f63c886948f11e631tree
parent70202e48b64d0a5227673083af61efbdf67e75fecommit | diff
re PR debug/42728 ("-fcompare-debug failure (length)" at -O1)

PR debug/42728
* fwprop.c (all_uses_available_at): Return false if def_set dest
is a REG that is used in def_insn.

* gcc.dg/pr42728.c: New test.

From-SVN: r156037
gcc/ChangeLog diff | blob | blame | history
gcc/fwprop.c diff | blob | blame | history
gcc/testsuite/ChangeLog diff | blob | blame | history
gcc/testsuite/gcc.dg/pr42728.c [new file with mode: 0644] blob
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