test/Dialect/LLVMIR/callgraph.mlir

// RUN: mlir-opt --test-print-callgraph --split-input-file %s 2>&1 | FileCheck %s

// CHECK: Testing : "Normal function call"
module attributes {"test.name" = "Normal function call"} {
  // CHECK-LABEL: ---- CallGraph ----
  // CHECK: - Node : 'llvm.func' {{.*}} sym_name = "foo"
  // CHECK-NEXT: -- Call-Edge : 'llvm.func' {{.*}} sym_name = "bar"

  // CHECK: - Node : 'llvm.func' {{.*}} sym_name = "bar"
  // CHECK-NEXT: -- Call-Edge : 'llvm.func' {{.*}} sym_name = "foo"

  // CHECK: - Node : 'llvm.func' {{.*}} sym_name = "entry"
  // CHECK-DAG: -- Call-Edge : 'llvm.func' {{.*}} sym_name = "foo"
  // CHECK-DAG: -- Call-Edge : 'llvm.func' {{.*}} sym_name = "bar"

  // CHECK-LABEL: -- SCCs --
  // CHECK: - SCC :
  // CHECK-DAG: -- Node :'llvm.func' {{.*}} sym_name = "foo"
  // CHECK-DAG: -- Node :'llvm.func' {{.*}} sym_name = "bar"

  // CHECK: - SCC :
  // CHECK-DAG: -- Node :'llvm.func' {{.*}} sym_name = "entry"

  llvm.func @foo(%arg0: i32) -> i32 {
    %0 = llvm.mlir.constant(2 : i32) : i32
    %1 = llvm.sub %arg0, %0  : i32
    %2 = llvm.call @bar(%arg0, %1) : (i32, i32) -> i32
    llvm.return %2 : i32
  }
  llvm.func @bar(%arg0: i32, %arg1: i32) -> i32 {
    %0 = llvm.add %arg0, %arg1  : i32
    %1 = llvm.call @foo(%0) : (i32) -> i32
    llvm.return %1 : i32
  }
  llvm.func @entry(%arg0: i32) -> i32 {
    %0 = llvm.mlir.constant(2 : i32) : i32
    %1 = llvm.mlir.constant(0 : i32) : i32
    %2 = llvm.icmp "sgt" %arg0, %1 : i32
    llvm.cond_br %2, ^bb1, ^bb2
  ^bb1:  // pred: ^bb0
    %3 = llvm.call @foo(%arg0) : (i32) -> i32
    llvm.br ^bb3(%3 : i32)
  ^bb2:  // pred: ^bb0
    %4 = llvm.add %arg0, %0  : i32
    %5 = llvm.call @bar(%arg0, %4) : (i32, i32) -> i32
    llvm.br ^bb3(%5 : i32)
  ^bb3(%6: i32):  // 2 preds: ^bb1, ^bb2
    llvm.return %6 : i32
  }
}

// -----

// CHECK: Testing : "Invoke call"
module attributes {"test.name" = "Invoke call"} {
  // CHECK-LABEL: ---- CallGraph ----
  // CHECK: - Node : 'llvm.func' {{.*}} sym_name = "invokeLandingpad"
  // CHECK-DAG: -- Call-Edge : <Unknown-Callee-Node>

  // CHECK: -- SCCs --
  llvm.mlir.global external constant @_ZTIi() : !llvm.ptr
  llvm.func @foo(%arg0: i32) -> !llvm.struct<(i32, f64, i32)>
  llvm.func @bar(!llvm.ptr, !llvm.ptr, !llvm.ptr)
  llvm.func @__gxx_personality_v0(...) -> i32

  llvm.func @invokeLandingpad() -> i32 attributes { personality = @__gxx_personality_v0 } {
    %0 = llvm.mlir.constant(0 : i32) : i32
    %1 = llvm.mlir.constant(3 : i32) : i32
    %2 = llvm.mlir.constant("\01") : !llvm.array<1 x i8>
    %3 = llvm.mlir.zero : !llvm.ptr
    %4 = llvm.mlir.zero : !llvm.ptr
    %5 = llvm.mlir.addressof @_ZTIi : !llvm.ptr
    %6 = llvm.mlir.constant(1 : i32) : i32
    %7 = llvm.alloca %6 x i8 : (i32) -> !llvm.ptr
    %8 = llvm.invoke @foo(%6) to ^bb2 unwind ^bb1 : (i32) -> !llvm.struct<(i32, f64, i32)>

  ^bb1:
    %10 = llvm.landingpad cleanup (catch %3 : !llvm.ptr) (catch %5 : !llvm.ptr) (filter %2 : !llvm.array<1 x i8>) : !llvm.struct<(ptr, i32)>
    %11 = llvm.intr.eh.typeid.for %5 : (!llvm.ptr) -> i32
    llvm.resume %10 : !llvm.struct<(ptr, i32)>

  ^bb2:
    llvm.return %6 : i32

  ^bb3:
    llvm.invoke @bar(%7, %5, %4) to ^bb2 unwind ^bb1 : (!llvm.ptr, !llvm.ptr, !llvm.ptr) -> ()

  ^bb4:
    llvm.return %0 : i32
  }
}