[llvm-commits] CVS: llvm/lib/Transforms/Utils/SimplifyCFG.cpp
Chris Lattner
lattner at cs.uiuc.edu
Tue Aug 2 16:29:35 PDT 2005
Changes in directory llvm/lib/Transforms/Utils:
SimplifyCFG.cpp updated: 1.73 -> 1.74
---
Log message:
Change a place to use an arbitrary value instead of null, when possible
---
Diffs of the changes: (+3 -3)
SimplifyCFG.cpp | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
Index: llvm/lib/Transforms/Utils/SimplifyCFG.cpp
diff -u llvm/lib/Transforms/Utils/SimplifyCFG.cpp:1.73 llvm/lib/Transforms/Utils/SimplifyCFG.cpp:1.74
--- llvm/lib/Transforms/Utils/SimplifyCFG.cpp:1.73 Mon Aug 1 22:24:05 2005
+++ llvm/lib/Transforms/Utils/SimplifyCFG.cpp Tue Aug 2 18:29:23 2005
@@ -849,13 +849,13 @@
while (!BB->empty()) {
Instruction &I = BB->back();
// If this instruction is used, replace uses with an arbitrary
- // constant value. Because control flow can't get here, we don't care
+ // value. Because control flow can't get here, we don't care
// what we replace the value with. Note that since this block is
// unreachable, and all values contained within it must dominate their
// uses, that all uses will eventually be removed.
if (!I.use_empty())
- // Make all users of this instruction reference the constant instead
- I.replaceAllUsesWith(Constant::getNullValue(I.getType()));
+ // Make all users of this instruction use undef instead
+ I.replaceAllUsesWith(UndefValue::get(I.getType()));
// Remove the instruction from the basic block
BB->getInstList().pop_back();
More information about the llvm-commits
mailing list