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llvm-svn: 17043
2004-10-16 18:09:25 +00:00 · 2004-10-16 18:09:25 +00:00 · 6ac3ef950d
parent 8e71c6a33d
commit 6ac3ef950d
1 changed files with 1 additions and 0 deletions
--- a/llvm/lib/Transforms/Scalar/ADCE.cpp
+++ b/llvm/lib/Transforms/Scalar/ADCE.cpp
@ -234,6 +234,7 @@ bool ADCE::doADCE() {
        }
      } else if (I->mayWriteToMemory() || isa<ReturnInst>(I) ||
                 isa<UnwindInst>(I)) {
+        // Unreachable instructions are not marked intrinsically live here.
 	markInstructionLive(I);
      } else if (isInstructionTriviallyDead(I)) {
        // Remove the instruction from it's basic block...