RPCS3/llvm
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm.git synced 2025-01-19 08:24:12 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Don't create a new node for every reference to a global. This caused a huge

Browse Source 
node explosion that doesn't help anything at all.  In previous versions of
the representation this DID help, but not anymore.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4249 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2002-10-21 13:51:30 +00:00
parent 482b651cf8
commit 448f4949dc
1 changed files with 2 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
lib/Analysis/DataStructure/Local.cpp
View File

@ -186,12 +186,9 @@ DSNodeHandle &GraphBuilder::getGlobalNode(GlobalValue &V) {
//
DSNodeHandle GraphBuilder::getValueNode(Value &V) {
assert(isPointerType(V.getType()) && "Should only use pointer scalars!");
// Do not share the pointer value to globals... this would cause way too much
// false merging.
//
DSNodeHandle &NH = ValueMap[&V];
if (!isa<GlobalValue>(V) && NH.getNode())
return NH; // Already have a node? Just return it...
if (NH.getNode()) return NH; // Already have a node? Just return it...
// Otherwise we need to create a new scalar node...
DSNode *N = createNode(DSNode::ScalarNode, V.getType());