[llvm] Changed default value of slp-max-vf to 192 (PR #70479)
Alexey Bataev via llvm-commits
llvm-commits at lists.llvm.org
Mon Oct 30 08:32:20 PDT 2023
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@@ -138,8 +138,8 @@ MaxVectorRegSizeOption("slp-max-reg-size", cl::init(128), cl::Hidden,
cl::desc("Attempt to vectorize for this register size in bits"));
static cl::opt<unsigned>
-MaxVFOption("slp-max-vf", cl::init(0), cl::Hidden,
- cl::desc("Maximum SLP vectorization factor (0=unlimited)"));
+ MaxVFOption("slp-max-vf", cl::init(192), cl::Hidden,
+ cl::desc("Maximum SLP vectorization factor (0=unlimited)"));
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alexey-bataev wrote:
I don't like this change, need to take a closer look at the problematic case. This is a hacak that does not fix the issue, just hides it.
https://github.com/llvm/llvm-project/pull/70479
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