6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-04-06 09:44:39 +00:00
Code Issues Projects Releases Wiki Activity

This code really wants to iterate over the OPERANDS of an instruction, not

Browse Source 
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.  :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13102 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2004-04-21 22:29:37 +00:00
parent 5d461d20ae
commit 4e5f03602c
1 changed files with 2 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
lib/Transforms/Scalar/DCE.cpp
View File

@ -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<Instruction>(*UI))
for (User::op_iterator OI = I->op_begin(), E = I->op_end(); OI != E; ++OI)
if (Instruction *Used = dyn_cast<Instruction>(*OI))
WorkList.push_back(Used);
// Tell the instruction to let go of all of the values it uses...