[PATCH] D105583: [AMDGPU] Set LoopInfo as preserved by SIAnnotateControlFlow

[Stanislav Mekhanoshin via Phabricator via llvm-commits]

rampitec created this revision.
rampitec added a reviewer: arsenm.
Herald added subscribers: foad, kerbowa, hiraditya, t-tye, tpr, dstuttard, yaxunl, nhaehnle, jvesely, kzhuravl.
rampitec requested review of this revision.
Herald added a subscriber: wdng.
Herald added a project: LLVM.

The pass does not change loops, it just adds calls.


https://reviews.llvm.org/D105583

Files:
  llvm/lib/Target/AMDGPU/SIAnnotateControlFlow.cpp
  llvm/test/CodeGen/AMDGPU/llc-pipeline.ll


Index: llvm/test/CodeGen/AMDGPU/llc-pipeline.ll
===================================================================
--- llvm/test/CodeGen/AMDGPU/llc-pipeline.ll
+++ llvm/test/CodeGen/AMDGPU/llc-pipeline.ll
@@ -93,7 +93,6 @@
 ; GCN-O0-NEXT:       Memory SSA
 ; GCN-O0-NEXT:       AMDGPU Annotate Uniform Values
 ; GCN-O0-NEXT:       SI annotate control flow
-; GCN-O0-NEXT:       Natural Loop Information
 ; GCN-O0-NEXT:       LCSSA Verifier
 ; GCN-O0-NEXT:       Loop-Closed SSA Form Pass
 ; GCN-O0-NEXT:       DummyCGSCCPass
@@ -270,7 +269,6 @@
 ; GCN-O1-NEXT:       Memory SSA
 ; GCN-O1-NEXT:       AMDGPU Annotate Uniform Values
 ; GCN-O1-NEXT:       SI annotate control flow
-; GCN-O1-NEXT:       Natural Loop Information
 ; GCN-O1-NEXT:       LCSSA Verifier
 ; GCN-O1-NEXT:       Loop-Closed SSA Form Pass
 ; GCN-O1-NEXT:       DummyCGSCCPass
@@ -543,7 +541,6 @@
 ; GCN-O1-OPTS-NEXT:       Memory SSA
 ; GCN-O1-OPTS-NEXT:       AMDGPU Annotate Uniform Values
 ; GCN-O1-OPTS-NEXT:       SI annotate control flow
-; GCN-O1-OPTS-NEXT:       Natural Loop Information
 ; GCN-O1-OPTS-NEXT:       LCSSA Verifier
 ; GCN-O1-OPTS-NEXT:       Loop-Closed SSA Form Pass
 ; GCN-O1-OPTS-NEXT:       DummyCGSCCPass
@@ -824,7 +821,6 @@
 ; GCN-O2-NEXT:       Memory SSA
 ; GCN-O2-NEXT:       AMDGPU Annotate Uniform Values
 ; GCN-O2-NEXT:       SI annotate control flow
-; GCN-O2-NEXT:       Natural Loop Information
 ; GCN-O2-NEXT:       LCSSA Verifier
 ; GCN-O2-NEXT:       Loop-Closed SSA Form Pass
 ; GCN-O2-NEXT:       DummyCGSCCPass
@@ -1119,7 +1115,6 @@
 ; GCN-O3-NEXT:       Memory SSA
 ; GCN-O3-NEXT:       AMDGPU Annotate Uniform Values
 ; GCN-O3-NEXT:       SI annotate control flow
-; GCN-O3-NEXT:       Natural Loop Information
 ; GCN-O3-NEXT:       LCSSA Verifier
 ; GCN-O3-NEXT:       Loop-Closed SSA Form Pass
 ; GCN-O3-NEXT:       DummyCGSCCPass
Index: llvm/lib/Target/AMDGPU/SIAnnotateControlFlow.cpp
===================================================================
--- llvm/lib/Target/AMDGPU/SIAnnotateControlFlow.cpp
+++ llvm/lib/Target/AMDGPU/SIAnnotateControlFlow.cpp
@@ -100,6 +100,7 @@
     AU.addRequired<LoopInfoWrapperPass>();
     AU.addRequired<DominatorTreeWrapperPass>();
     AU.addRequired<LegacyDivergenceAnalysis>();
+    AU.addPreserved<LoopInfoWrapperPass>();
     AU.addPreserved<DominatorTreeWrapperPass>();
     AU.addRequired<TargetPassConfig>();
     FunctionPass::getAnalysisUsage(AU);


-------------- next part --------------
A non-text attachment was scrubbed...
Name: D105583.357050.patch
Type: text/x-patch
Size: 2420 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20210707/aea418ed/attachment-0001.bin>