[llvm-bugs] [Bug 39714] -fast-isel=0 for armv7 can result in 4-byte Reload without corresponding 4-byte Spill
via llvm-bugs
llvm-bugs at lists.llvm.org
Fri Dec 7 05:53:58 PST 2018
https://bugs.llvm.org/show_bug.cgi?id=39714
Tim Northover <t.p.northover at gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
CC| |t.p.northover at gmail.com
Status|NEW |RESOLVED
--- Comment #1 from Tim Northover <t.p.northover at gmail.com> ---
It's another ARMFrameLowering.cpp bug. There is an earlier store that LLVM
thinks is going to the same slot, but it's miscalculating the offset from r6 in
the load because it thinks the neighbouring "sub sp, sp, ..." affects it.
Should be fixed in r348591.
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