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[DSE,MemorySSA] Increase walker limit a bit. 

This slightly bumps the walker limit so that it covers more cases while
not increasing compile-time too much:
http://llvm-compile-time-tracker.com/compare.php?from=0fc1c2b51ba0cfb9145139af35be638333865251&to=91144a50ea4fa82c0c877e77784f60371640b263&stat=instructions
This commit is contained in:
Florian Hahn 2020-09-04 16:44:58 +01:00
parent 94cfbef0a7
commit c7b7c32f4a
1 changed files with 2 additions and 2 deletions
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4
llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp
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@ -114,9 +114,9 @@ static cl::opt<unsigned>
cl::desc("The number of memory instructions to scan for "
"dead store elimination (default = 100)"));
static cl::opt<unsigned> MemorySSAUpwardsStepLimit(
"dse-memoryssa-walklimit", cl::init(70), cl::Hidden,
"dse-memoryssa-walklimit", cl::init(90), cl::Hidden,
cl::desc("The maximum number of steps while walking upwards to find "
"MemoryDefs that may be killed (default = 70)"));
"MemoryDefs that may be killed (default = 90)"));
static cl::opt<unsigned> MemorySSAPartialStoreLimit(
"dse-memoryssa-partial-store-limit", cl::init(5), cl::Hidden,