RPCS3/llvm
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm.git synced 2025-01-08 13:00:50 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Small optimization to speed up replacementPreservesLCSSAForm.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122600 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan Sands 2010-12-28 18:00:24 +00:00
parent e21083aa3a
commit 9bc6a90146
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
include/llvm/Analysis/LoopInfo.h
View File

@ -1029,6 +1029,10 @@ public:
// instruction.
Instruction *I = dyn_cast<Instruction>(To);
if (!I) return true;
// If both instructions are defined in the same basic block then replacement
// cannot break LCSSA form.
if (I->getParent() == From->getParent())
return true;
// If the instruction is not defined in a loop then it can safely replace
// anything.
Loop *ToLoop = getLoopFor(I->getParent());