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authorChris Lattner <sabre@nondot.org>2003-02-13 19:46:22 +0000
committerChris Lattner <sabre@nondot.org>2003-02-13 19:46:22 +0000
commit0779388ff830e0636f3071e70546e33d3b645f54 (patch)
treef2a05c5e3b58e40bb1e1176c8df15ae3937254d3 /lib/VMCore/Value.cpp
parent731b2d7df57d4ca97e15b1136594f23055c083f7 (diff)
downloadexternal_llvm-0779388ff830e0636f3071e70546e33d3b645f54.zip
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This speeds up processing LLVM a _lot_, 17% in the case of loading and destroying "vortex"
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5553 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/VMCore/Value.cpp')
-rw-r--r--lib/VMCore/Value.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/VMCore/Value.cpp b/lib/VMCore/Value.cpp
index f343a6c..ac13159 100644
--- a/lib/VMCore/Value.cpp
+++ b/lib/VMCore/Value.cpp
@@ -89,7 +89,8 @@ void Value::killUse(User *U) {
/* empty */;
assert(i < Uses.size() && "Use not in uses list!!");
- Uses.erase(Uses.begin()+i);
+ Uses[i] = Uses.back();
+ Uses.pop_back();
}
//===----------------------------------------------------------------------===//