[llvm] 384a8dd - [Pipelines] Don't request BFI in LICM-only loop pass adaptors

[Nikita Popov via llvm-commits]

Author: Nikita Popov
Date: 2023-04-21T12:55:12+02:00
New Revision: 384a8dd10eb43b23301acc801855bdb0a0b6b35c

URL: https://github.com/llvm/llvm-project/commit/384a8dd10eb43b23301acc801855bdb0a0b6b35c
DIFF: https://github.com/llvm/llvm-project/commit/384a8dd10eb43b23301acc801855bdb0a0b6b35c.diff

LOG: [Pipelines] Don't request BFI in LICM-only loop pass adaptors

LICM doesn't use BFI anymore, so requesting BFI in these loop
pass adaptors is just a waste of compile-time.

Added: 
    

Modified: 
    llvm/lib/Passes/PassBuilderPipelines.cpp

Removed: 
    


################################################################################
diff  --git a/llvm/lib/Passes/PassBuilderPipelines.cpp b/llvm/lib/Passes/PassBuilderPipelines.cpp
index 3ef8b2644966f..da72bedf70582 100644
--- a/llvm/lib/Passes/PassBuilderPipelines.cpp
+++ b/llvm/lib/Passes/PassBuilderPipelines.cpp
@@ -708,7 +708,7 @@ PassBuilder::buildFunctionSimplificationPipeline(OptimizationLevel Level,
   FPM.addPass(createFunctionToLoopPassAdaptor(
       LICMPass(PTO.LicmMssaOptCap, PTO.LicmMssaNoAccForPromotionCap,
                /*AllowSpeculation=*/true),
-      /*UseMemorySSA=*/true, /*UseBlockFrequencyInfo=*/true));
+      /*UseMemorySSA=*/true, /*UseBlockFrequencyInfo=*/false));
 
   FPM.addPass(CoroElidePass());
 
@@ -1260,7 +1260,7 @@ void PassBuilder::addVectorPasses(OptimizationLevel Level,
     FPM.addPass(createFunctionToLoopPassAdaptor(
         LICMPass(PTO.LicmMssaOptCap, PTO.LicmMssaNoAccForPromotionCap,
                  /*AllowSpeculation=*/true),
-        /*UseMemorySSA=*/true, /*UseBlockFrequencyInfo=*/true));
+        /*UseMemorySSA=*/true, /*UseBlockFrequencyInfo=*/false));
   }
 
   // Now that we've vectorized and unrolled loops, we may have more refined
@@ -1816,7 +1816,7 @@ PassBuilder::buildLTODefaultPipeline(OptimizationLevel Level,
   MainFPM.addPass(createFunctionToLoopPassAdaptor(
       LICMPass(PTO.LicmMssaOptCap, PTO.LicmMssaNoAccForPromotionCap,
                /*AllowSpeculation=*/true),
-      /*USeMemorySSA=*/true, /*UseBlockFrequencyInfo=*/true));
+      /*USeMemorySSA=*/true, /*UseBlockFrequencyInfo=*/false));
 
   if (RunNewGVN)
     MainFPM.addPass(NewGVNPass());