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[Bug tree-optimization/82627] [8 regression] r253809 breaks test cases gcc.dg/graphite/interchange-3.c -7.c, -9.c, and uns-interchange-9.c
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 20 Oct 2017 09:21:45 +0000
- Subject: [Bug tree-optimization/82627] [8 regression] r253809 breaks test cases gcc.dg/graphite/interchange-3.c -7.c, -9.c, and uns-interchange-9.c
- Auto-submitted: auto-generated
- References: <bug-82627-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82627
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |WAITING
Last reconfirmed| |2017-10-20
Target Milestone|--- |8.0
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Can you provide full dumps before/after please? The patch removed some "stray"
stmts that might have tricked ISL into doing some transform that ended up being
useful to enable tiling.
Note that on x86_64 the dump has
not tiled
so the dump scanning isn't exactly useful... (most of the testcases are
broken - at some point they all got adjusted to PASS without any sensible
look :/)
The test shouldn't have any target dependence whatsoever though :/