[llvm] 0d1b526 - [MachineVerifier] Try harder to verify LiveStacks

[Jay Foad via llvm-commits]

Author: Jay Foad
Date: 2022-07-12T09:54:54+01:00
New Revision: 0d1b5268e8e1dc799c4b5734c0cb4a61168c58b7

URL: https://github.com/llvm/llvm-project/commit/0d1b5268e8e1dc799c4b5734c0cb4a61168c58b7
DIFF: https://github.com/llvm/llvm-project/commit/0d1b5268e8e1dc799c4b5734c0cb4a61168c58b7.diff

LOG: [MachineVerifier] Try harder to verify LiveStacks

Verify the LiveStacks analysis after a pass that claims to preserve it,
even if there are no further passes (apart from the verifier itself)
that would use the analysis.

Differential Revision: https://reviews.llvm.org/D129200

Added: 
    

Modified: 
    llvm/lib/CodeGen/MachineVerifier.cpp

Removed: 
    


################################################################################
diff  --git a/llvm/lib/CodeGen/MachineVerifier.cpp b/llvm/lib/CodeGen/MachineVerifier.cpp
index db04f2bcc095..7a008bae726e 100644
--- a/llvm/lib/CodeGen/MachineVerifier.cpp
+++ b/llvm/lib/CodeGen/MachineVerifier.cpp
@@ -293,6 +293,7 @@ namespace {
       }
 
     void getAnalysisUsage(AnalysisUsage &AU) const override {
+      AU.addUsedIfAvailable<LiveStacks>();
       AU.setPreservesAll();
       MachineFunctionPass::getAnalysisUsage(AU);
     }