Perform copying to created arrays according to the packing transformation
This is the fourth patch to apply the BLIS matmul optimization pattern on matmul
kernels (http://www.cs.utexas.edu/users/flame/pubs/TOMS-BLIS-Analytical.pdf).
BLIS implements gemm as three nested loops around a macro-kernel, plus two
packing routines. The macro-kernel is implemented in terms of two additional
loops around a micro-kernel. The micro-kernel is a loop around a rank-1
(i.e., outer product) update. In this change we perform copying to created
arrays, which is the last step to implement the packing transformation.
Reviewed-by: Tobias Grosser <tobias@grosser.es>
Differential Revision: https://reviews.llvm.org/D23260
llvm-svn: 281441
diff --git a/polly/lib/CodeGen/IRBuilder.cpp b/polly/lib/CodeGen/IRBuilder.cpp
index cedbe29..92fce35 100644
--- a/polly/lib/CodeGen/IRBuilder.cpp
+++ b/polly/lib/CodeGen/IRBuilder.cpp
@@ -61,7 +61,8 @@
SetVector<Value *> BasePtrs;
for (ScopStmt &Stmt : S)
for (MemoryAccess *MA : Stmt)
- BasePtrs.insert(MA->getBaseAddr());
+ if (!Stmt.isCopyStmt())
+ BasePtrs.insert(MA->getBaseAddr());
std::string AliasScopeStr = "polly.alias.scope.";
for (Value *BasePtr : BasePtrs)