projects / platform / upstream / llvm.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 45e9990) | patch
[InstCombine] Shift amount reassociation in bittest: drop pointless one-use restriction
authorRoman Lebedev <lebedev.ri@gmail.com>
Sat, 10 Aug 2019 19:28:44 +0000 (19:28 +0000)
committerRoman Lebedev <lebedev.ri@gmail.com>
Sat, 10 Aug 2019 19:28:44 +0000 (19:28 +0000)
commit64fe806c4e11d90d8abaed65b659673be677b856
treefc22596f13fd15811777a0fa1ac62d64964e87f2tree | snapshot
parent45e9990c02c33e76e67754b70770d8d803569ebccommit | diff
[InstCombine] Shift amount reassociation in bittest: drop pointless one-use restriction

That one-use restriction is not needed for correctness - we have already
ensured that one of the shifts will go away, so we know we won't increase
the instruction count. So there is no need for that restriction.

llvm-svn: 368518
llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp diff | blob | history
llvm/test/Transforms/InstCombine/shift-amount-reassociation-in-bittest.ll diff | blob | history
Domain: System / Toolchain;