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; 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=1
; CHECK-EMPTY:
; 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*)]
@llvm.compiler.used = appending global [1 x void()*] [void ()* @used2]
@array = appending global [1 x i8*] [i8* bitcast (void ()* @unused to i8*)]
define internal void @used1() {
entry:
ret void
}
define internal void @used2() {
entry:
ret void
}
define internal void @unused() {
entry:
ret void
}
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