[PATCH] D99897: Set IgnoreLLVMUsed to false in CallGraph::addToCallGraph()
Stanislav Mekhanoshin via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Thu Apr 8 11:14:25 PDT 2021
This revision was automatically updated to reflect the committed changes.
Closed by commit rG5f0ac1ef7888: Set IgnoreLLVMUsed to false in CallGraph::addToCallGraph() (authored by rampitec).
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D99897/new/
https://reviews.llvm.org/D99897
Files:
llvm/lib/Analysis/CallGraph.cpp
llvm/test/Analysis/CallGraph/ignore-llvm-used.ll
llvm/test/Analysis/CallGraph/llvm-used.ll
Index: llvm/test/Analysis/CallGraph/llvm-used.ll
===================================================================
--- llvm/test/Analysis/CallGraph/llvm-used.ll
+++ llvm/test/Analysis/CallGraph/llvm-used.ll
@@ -1,12 +1,20 @@
; RUN: opt < %s -print-callgraph -disable-output 2>&1 | FileCheck %s
+
+; The test will report used1 and used2 functions as used on the grounds
+; of llvm.*.used references. Passing IgnoreLLVMUsed = true into the
+; Function::hasAddressTaken() in the CallGraph::addToCallGraph() has to
+; change their uses to zero.
+
; CHECK: Call graph node <<null function>><<{{.*}}>> #uses=0
+; CHECK-NEXT: CS<None> calls function 'used1'
+; CHECK-NEXT: CS<None> calls function 'used2'
; CHECK-NEXT: CS<None> calls function 'unused'
; CHECK-EMPTY:
; CHECK-NEXT: Call graph node for function: 'unused'<<{{.*}}>> #uses=1
; CHECK-EMPTY:
-; CHECK-NEXT: Call graph node for function: 'used1'<<{{.*}}>> #uses=0
+; CHECK-NEXT: Call graph node for function: 'used1'<<{{.*}}>> #uses=1
; CHECK-EMPTY:
-; CHECK-NEXT: Call graph node for function: 'used2'<<{{.*}}>> #uses=0
+; CHECK-NEXT: Call graph node for function: 'used2'<<{{.*}}>> #uses=1
; CHECK-EMPTY:
@llvm.used = appending global [1 x i8*] [i8* bitcast (void ()* @used1 to i8*)]
Index: llvm/lib/Analysis/CallGraph.cpp
===================================================================
--- llvm/lib/Analysis/CallGraph.cpp
+++ llvm/lib/Analysis/CallGraph.cpp
@@ -82,7 +82,7 @@
if (!F->hasLocalLinkage() ||
F->hasAddressTaken(nullptr, /*IgnoreCallbackUses=*/true,
/* IgnoreAssumeLikeCalls */ true,
- /* IgnoreLLVMUsed */ true))
+ /* IgnoreLLVMUsed */ false))
ExternalCallingNode->addCalledFunction(nullptr, Node);
populateCallGraphNode(Node);
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