RPCS3/llvm
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm.git synced 2025-04-04 06:12:18 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Don't assume something which might be a constant expression is an instruction.

Browse Source 
Based on PR9429, but no testcase because I can't figure out how to trigger it
anymore given other changes to the relevant code.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128781 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eli Friedman 2011-04-02 22:11:56 +00:00
parent f5b75932b8
commit 6bdd261df9
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
lib/Analysis/ValueTracking.cpp
View File

@ -729,9 +729,9 @@ bool llvm::isPowerOfTwo(Value *V, const TargetData *TD, unsigned Depth) {
// copying a sign bit (sdiv int_min, 2). // copying a sign bit (sdiv int_min, 2).
if (match(V, m_LShr(m_Value(), m_Value())) || if (match(V, m_LShr(m_Value(), m_Value())) ||
match(V, m_UDiv(m_Value(), m_Value()))) { match(V, m_UDiv(m_Value(), m_Value()))) {
BinaryOperator *BO = cast<BinaryOperator>(V); PossiblyExactOperator *PEO = cast<PossiblyExactOperator>(V);
if (BO->isExact()) if (PEO->isExact())
return isPowerOfTwo(BO->getOperand(0), TD, Depth); return isPowerOfTwo(PEO->getOperand(0), TD, Depth);
} }
return false; return false;