llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-01-14 00:32:55 +00:00

History

Arnold Schwaighofer 935645b765 Loop Vectorizer: Handle pointer stores/loads in getWidestType()

In the loop vectorizer cost model, we used to ignore stores/loads of a pointer
type when computing the widest type within a loop. This meant that if we had
only stores/loads of pointers in a loop we would return a widest type of 8bits
(instead of 32 or 64 bit) and therefore a vector factor that was too big.

Now, if we see a consecutive store/load of pointers we use the size of a pointer
(from data layout).

This problem occured in SingleSource/Benchmarks/Shootout-C++/hash.cpp (reduced
test case is the first test in vector_ptr_load_store.ll).

radar://13139343

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174377 91177308-0d34-0410-b5e6-96231b3b80d8

2013-02-05 15:08:02 +00:00

avx1.ll

ARM Cost model: Use the size of vector registers and widest vectorizable instruction to determine the max vectorization factor.

2013-01-09 22:29:00 +00:00

conversion-cost.ll

ARM Cost model: Use the size of vector registers and widest vectorizable instruction to determine the max vectorization factor.

2013-01-09 22:29:00 +00:00

cost-model.ll

Loop Vectorizer: Update the cost model of scatter/gather operations and make

2012-12-23 07:23:55 +00:00

gcc-examples.ll

Remove the -licm pass from the loop vectorizer test because the loop vectorizer does it now.