[llvm-commits] CVS: llvm/lib/Analysis/LoadValueNumbering.cpp
Chris Lattner
lattner at cs.uiuc.edu
Fri Jan 28 21:57:16 PST 2005
Changes in directory llvm/lib/Analysis:
LoadValueNumbering.cpp updated: 1.23 -> 1.24
---
Log message:
If we see:
%A = alloca int
%V = load int* %A
value number %V to undef, not 0.
---
Diffs of the changes: (+3 -4)
LoadValueNumbering.cpp | 7 +++----
1 files changed, 3 insertions(+), 4 deletions(-)
Index: llvm/lib/Analysis/LoadValueNumbering.cpp
diff -u llvm/lib/Analysis/LoadValueNumbering.cpp:1.23 llvm/lib/Analysis/LoadValueNumbering.cpp:1.24
--- llvm/lib/Analysis/LoadValueNumbering.cpp:1.23 Wed Dec 15 12:14:04 2004
+++ llvm/lib/Analysis/LoadValueNumbering.cpp Fri Jan 28 23:57:01 2005
@@ -22,7 +22,7 @@
//===----------------------------------------------------------------------===//
#include "llvm/Analysis/LoadValueNumbering.h"
-#include "llvm/Constant.h"
+#include "llvm/Constants.h"
#include "llvm/Function.h"
#include "llvm/Instructions.h"
#include "llvm/Pass.h"
@@ -357,11 +357,10 @@
Instrs.erase(I);
} else if (AllocationInst *AI = dyn_cast<AllocationInst>(I)) {
// If we run into an allocation of the value being loaded, then the
- // contenxt are not initialized. We can return any value, so we will
- // return a zero.
+ // contents are not initialized.
if (Allocations.count(AI)) {
LoadInvalidatedInBBBefore = true;
- RetVals.push_back(Constant::getNullValue(LI->getType()));
+ RetVals.push_back(UndefValue::get(LI->getType()));
break;
}
}
More information about the llvm-commits
mailing list