RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2025-01-01 08:28:19 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Getting ADCE to interact well with unreachable instructions seems like a nontrivial

Browse Source 
exercise that I'm not interested in tackling right now.  Just punt and treat them
like unwind's.

This 'fixes' test/Regression/Transforms/ADCE/unreachable-function.ll

llvm-svn: 17106
This commit is contained in:
Chris Lattner 2004-10-17 23:45:06 +00:00
parent 215d4c9d22
commit 44a7cf480d
1 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

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

@ -233,8 +233,9 @@ bool ADCE::doADCE() {
markInstructionLive(I);
}
} else if (I->mayWriteToMemory() || isa<ReturnInst>(I) ||
isa<UnwindInst>(I)) {
// Unreachable instructions are not marked intrinsically live here.
isa<UnwindInst>(I) || isa<UnreachableInst>(I)) {
// FIXME: Unreachable instructions should not be marked intrinsically
// live here.
markInstructionLive(I);
} else if (isInstructionTriviallyDead(I)) {
// Remove the instruction from it's basic block...