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[Bug rtl-optimization/49429] dse.c changes to fix PR44194 (r175063) cause execution failures
- From: "eraman at google dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 16 Jun 2011 00:06:08 +0000
- Subject: [Bug rtl-optimization/49429] dse.c changes to fix PR44194 (r175063) cause execution failures
- Auto-submitted: auto-generated
- References: <bug-49429-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49429
--- Comment #7 from Easwaran Raman <eraman at google dot com> 2011-06-16 00:05:51 UTC ---
>From the dump after the dse.c changes, I see the following for the function
test2_31:
starting to process insn 90
v: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60,
61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80,
81, 82, 83, 84, 85, 86, 87, 88
non-frame wild read
starting to process insn 89
v: 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42,
43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62,
63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82,
83, 84, 85, 86, 87, 88
Insn 90 is a call to check31. This is supposed to kill all locations that
escape from the caller, but from the dump it looks like it has only killed some
of them.