[PATCH] D63170: [clang][NewPM] Fix broken -O0 test from missing assumptions

[Leonard Chan via Phabricator via cfe-commits]

leonardchan created this revision.
leonardchan added reviewers: chandlerc, echristo, phosek, serge-sans-paille.
leonardchan added a project: clang.
Herald added subscribers: llvm-commits, hiraditya, eraman.
Herald added a project: LLVM.
leonardchan added a parent revision: D62225: [clang][NewPM] Fixing -O0 tests that are broken under new PM.

Add an AssumptionCache callback to the InlineFuntionInfo used for the AlwaysInlinerPass to match codegen of the AlwaysInlinerLegacyPass to generate llvm.assume. This fixes `CodeGen/builtin-movdir.c` when new PM is enabled by default.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D63170

Files:
  llvm/lib/Transforms/IPO/AlwaysInliner.cpp


Index: llvm/lib/Transforms/IPO/AlwaysInliner.cpp
===================================================================
--- llvm/lib/Transforms/IPO/AlwaysInliner.cpp
+++ llvm/lib/Transforms/IPO/AlwaysInliner.cpp
@@ -31,8 +31,17 @@
 
 #define DEBUG_TYPE "inline"
 
-PreservedAnalyses AlwaysInlinerPass::run(Module &M, ModuleAnalysisManager &) {
-  InlineFunctionInfo IFI;
+PreservedAnalyses AlwaysInlinerPass::run(Module &M,
+                                         ModuleAnalysisManager &MAM) {
+  // Add inline assumptions during code generation.
+  FunctionAnalysisManager &FAM =
+      MAM.getResult<FunctionAnalysisManagerModuleProxy>(M).getManager();
+  std::function<AssumptionCache &(Function &)> GetAssumptionCache =
+      [&](Function &F) -> AssumptionCache & {
+    return FAM.getResult<AssumptionAnalysis>(F);
+  };
+  InlineFunctionInfo IFI(/*cg=*/nullptr, &GetAssumptionCache);
+
   SmallSetVector<CallSite, 16> Calls;
   bool Changed = false;
   SmallVector<Function *, 16> InlinedFunctions;


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