From fb9a299f68a0a81c2decc791c891da5f563be18f Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Wed, 21 Apr 2004 22:29:37 +0000 Subject: This code really wants to iterate over the OPERANDS of an instruction, not over its USES. If it's dead it doesn't have any uses! :) Thanks to the fabulous and mysterious Bill Wendling for pointing this out. :) llvm-svn: 13102 --- llvm/lib/Transforms/Scalar/DCE.cpp | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'llvm/lib/Transforms') diff --git a/llvm/lib/Transforms/Scalar/DCE.cpp b/llvm/lib/Transforms/Scalar/DCE.cpp index 8d0b1db6502..36e662ac2fb 100644 --- a/llvm/lib/Transforms/Scalar/DCE.cpp +++ b/llvm/lib/Transforms/Scalar/DCE.cpp @@ -92,9 +92,8 @@ bool DCE::runOnFunction(Function &F) { // instructions being used, add them to the worklist, because they might // go dead after this one is removed. // - for (User::use_iterator UI = I->use_begin(), UE = I->use_end(); - UI != UE; ++UI) - if (Instruction *Used = dyn_cast(*UI)) + for (User::op_iterator OI = I->op_begin(), E = I->op_end(); OI != E; ++OI) + if (Instruction *Used = dyn_cast(*OI)) WorkList.push_back(Used); // Tell the instruction to let go of all of the values it uses... -- cgit v1.2.3