[clang] 38aa43f - [Clang] Disable verifier passes by default in NewPM CodeGen (#208178)

[via cfe-commits]

Author: Alexis Engelke
Date: 2026-07-08T16:59:20+02:00
New Revision: 38aa43fd96dc15092246a94c8a45c1c0a78217cc

URL: https://github.com/llvm/llvm-project/commit/38aa43fd96dc15092246a94c8a45c1c0a78217cc
DIFF: https://github.com/llvm/llvm-project/commit/38aa43fd96dc15092246a94c8a45c1c0a78217cc.diff

LOG: [Clang] Disable verifier passes by default in NewPM CodeGen (#208178)

By default, we shouldn't add expensive verifier passes to the pipeline.
This causes a substantial perf regression compared to the legacy PM.

Added: 
    

Modified: 
    clang/lib/CodeGen/BackendUtil.cpp

Removed: 
    


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diff  --git a/clang/lib/CodeGen/BackendUtil.cpp b/clang/lib/CodeGen/BackendUtil.cpp
index 971cb409de3ca..2b755fa916e55 100644
--- a/clang/lib/CodeGen/BackendUtil.cpp
+++ b/clang/lib/CodeGen/BackendUtil.cpp
@@ -1302,6 +1302,7 @@ void EmitAssemblyHelper::RunCodegenPipelineNewPM(
   CGSCCAnalysisManager CGAM;
   ModuleAnalysisManager MAM;
   CGPassBuilderOption Opt = getCGPassBuilderOption();
+  Opt.DisableVerify = !CodeGenOpts.VerifyModule;
   MachineModuleInfo MMI(TM.get());
   PassInstrumentationCallbacks PIC;
   PipelineTuningOptions PTOptions;