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

hasAnyUseOfValue can check SDUse nodes of its users directly instead 

of examining every operand of every user.

llvm-svn: 53374
This commit is contained in:
Dan Gohman 2008-07-09 22:39:01 +00:00
parent a3f878dcab
commit 7a510c2990
1 changed files with 3 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
View File

@ -4401,8 +4401,6 @@ bool SDNode::hasNUsesOfValue(unsigned NUses, unsigned Value) const {
SDOperand TheValue(const_cast<SDNode *>(this), Value);
SmallPtrSet<SDNode*, 32> UsersHandled;
// TODO: Only iterate over uses of a given value of the node
for (SDNode::use_iterator UI = use_begin(), E = use_end(); UI != E; ++UI) {
if (*UI == TheValue) {
@ -4426,17 +4424,9 @@ bool SDNode::hasAnyUseOfValue(unsigned Value) const {
SDOperand TheValue(const_cast<SDNode *>(this), Value);
SmallPtrSet<SDNode*, 32> UsersHandled;
for (SDNode::use_iterator UI = use_begin(), E = use_end(); UI != E; ++UI) {
SDNode *User = UI->getUser();
if (User->getNumOperands() == 1 ||
UsersHandled.insert(User)) // First time we've seen this?
for (unsigned i = 0, e = User->getNumOperands(); i != e; ++i)
if (User->getOperand(i) == TheValue) {
return true;
}
}
for (SDNode::use_iterator UI = use_begin(), E = use_end(); UI != E; ++UI)
if (UI->getSDOperand() == TheValue)
return true;
return false;
}