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This patch introduces the combine: (C1 shift (A add C2)) -> ((C1 shift C2) shift A) iff A and C2 are both positive If both A and C2 are know to be positive then we can safely split into 2 shifts, permitting the folding of the Inner shift. Fix for the spec benchmark case mentioned by @nadav on PR15141 (assuming we can prove that the inputs as positive). Differential Revision: https://reviews.llvm.org/D26000 llvm-svn: 285696 |
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.. | ||
Coroutines | ||
Hello | ||
InstCombine | ||
Instrumentation | ||
IPO | ||
ObjCARC | ||
Scalar | ||
Utils | ||
Vectorize | ||
CMakeLists.txt | ||
LLVMBuild.txt |