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| author | Evgeny Leviant <eleviant@accesssoftek.com> | 2020-07-23 18:05:11 +0300 |
|---|---|---|
| committer | Evgeny Leviant <eleviant@accesssoftek.com> | 2020-07-23 18:05:11 +0300 |
| commit | dc619f3d7a975c30d4e31ff94a59fe8cbb6e2e8e (patch) | |
| tree | fede4694665216cc6c1080ce9d3c65927d35b882 /llvm/lib/CodeGen/TargetPassConfig.cpp | |
| parent | 24e41a34fe2218b53241c9627192b70c56f3059c (diff) | |
| download | llvm-dc619f3d7a975c30d4e31ff94a59fe8cbb6e2e8e.zip llvm-dc619f3d7a975c30d4e31ff94a59fe8cbb6e2e8e.tar.gz llvm-dc619f3d7a975c30d4e31ff94a59fe8cbb6e2e8e.tar.bz2 | |
[CodeGen][TargetPassConfig] Add unreachable-mbb-elimination pass explicitly
Differential revision: https://reviews.llvm.org/D84228
Diffstat (limited to 'llvm/lib/CodeGen/TargetPassConfig.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/TargetPassConfig.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/TargetPassConfig.cpp b/llvm/lib/CodeGen/TargetPassConfig.cpp index 856e120..6451194 100644 --- a/llvm/lib/CodeGen/TargetPassConfig.cpp +++ b/llvm/lib/CodeGen/TargetPassConfig.cpp @@ -1183,6 +1183,11 @@ void TargetPassConfig::addOptimizedRegAlloc() { // LiveVariables can be removed completely, and LiveIntervals can be directly // computed. (We still either need to regenerate kill flags after regalloc, or // preferably fix the scavenger to not depend on them). + // FIXME: UnreachableMachineBlockElim is a dependant pass of LiveVariables. + // When LiveVariables is removed this has to be removed/moved either. + // Explicit addition of UnreachableMachineBlockElim allows stopping before or + // after it with -stop-before/-stop-after. + addPass(&UnreachableMachineBlockElimID, false); addPass(&LiveVariablesID, false); // Edge splitting is smarter with machine loop info. |