[llvm] 30dfd34 - [MemCpyOpt] Allow specifying --enable-memcpyopt-without-libcalls more than once

[Artem Belevich via llvm-commits]

Author: Artem Belevich
Date: 2021-08-30T13:55:55-07:00
New Revision: 30dfd3449e45ac371012c6e46c77ab9089496d4e

URL: https://github.com/llvm/llvm-project/commit/30dfd3449e45ac371012c6e46c77ab9089496d4e
DIFF: https://github.com/llvm/llvm-project/commit/30dfd3449e45ac371012c6e46c77ab9089496d4e.diff

LOG: [MemCpyOpt] Allow specifying --enable-memcpyopt-without-libcalls more than once

so we can override it via clang's CLI if necessary.

Added: 
    

Modified: 
    llvm/lib/Transforms/Scalar/MemCpyOptimizer.cpp

Removed: 
    


################################################################################
diff  --git a/llvm/lib/Transforms/Scalar/MemCpyOptimizer.cpp b/llvm/lib/Transforms/Scalar/MemCpyOptimizer.cpp
index 5dd913dfafa6f..49070cf2e6b7a 100644
--- a/llvm/lib/Transforms/Scalar/MemCpyOptimizer.cpp
+++ b/llvm/lib/Transforms/Scalar/MemCpyOptimizer.cpp
@@ -68,6 +68,7 @@ using namespace llvm;
 
 static cl::opt<bool> EnableMemCpyOptWithoutLibcalls(
     "enable-memcpyopt-without-libcalls", cl::init(false), cl::Hidden,
+    cl::ZeroOrMore,
     cl::desc("Enable memcpyopt even when libcalls are disabled"));
 
 STATISTIC(NumMemCpyInstr, "Number of memcpy instructions deleted");