maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

add flag instead of using a constant [NFC] 

llvm-svn: 341837
This commit is contained in:
Sebastian Pop 2018-09-10 15:07:59 +00:00
parent ea0a91298d
commit 6284b54ccd
1 changed files with 5 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
llvm/lib/Transforms/Scalar/GVN.cpp
View File

@ -105,6 +105,10 @@ static cl::opt<uint32_t>
MaxRecurseDepth("gvn-max-recurse-depth", cl::Hidden, cl::init(1000), cl::ZeroOrMore,
cl::desc("Max recurse depth in GVN (default = 1000)"));
static cl::opt<uint32_t> MaxNumDeps(
"gvn-max-num-deps", cl::Hidden, cl::init(100), cl::ZeroOrMore,
cl::desc("Max number of dependences to attempt Load PRE (default = 100)"));
struct llvm::GVN::Expression {
uint32_t opcode;
Type *type;
@ -1311,7 +1315,7 @@ bool GVN::processNonLocalLoad(LoadInst *LI) {
// dependencies, this load isn't worth worrying about. Optimizing
// it will be too expensive.
unsigned NumDeps = Deps.size();
if (NumDeps > 100)
if (NumDeps > MaxNumDeps)
return false;
// If we had a phi translation failure, we'll have a single entry which is a