Add a testdata proto for a function call within a loop

PiperOrigin-RevId: 696656404

propeller/testdata/BUILD

@@ -30,8 +30,10 @@ _LLVM_PROPELLER_TESTDATA_TOOLCHAINS = [
 ]
 
 exports_files([
+    "all_cold_landing_pads.protobuf",
     "bimodal_sample.bin",
     "bimodal_sample.x.bin",
+    "call_from_simple_loop.protobuf",
     "clang_v0_labels.binary",
     "llvm_function_samples.binary",
     "llvm_function_samples_perf.data",

propeller/testdata/all_cold_landing_pads.protobuf

@@ -0,0 +1,139 @@
+## CFG Proto for two functions: Function foo has two exception handling landing
+## pads which are both cold.
+##
+##
+##                        20
+##                +-----------------+
+##                |                 |
+##                v       20        |
+##              foo -------------> bar
+##             /    \
+##         20 /      \ 0
+##           v        v    [eh pad]
+##         foo.1        foo.2 ----+
+##        /     \                 |
+##    20 /       \ 0              |
+##      v         v               |
+##    foo.4      foo.3 [eh pad]   |
+##     \          /               | 0
+##   20 \        /0               |
+##       \      /                 |
+##        v    v                  |
+##        foo.5     <-------------+
+##
+
+cfg {
+  name: "foo"
+  function_index: 100
+  node {
+    bb_id: 0
+    size: 10
+    out_edges {
+      sink : {
+        function_index: 100
+        bb_index: 1
+      }
+      weight: 20
+      kind: BRANCH_OR_FALLTHROUGH
+    }
+    out_edges {
+      sink : {
+        function_index: 100
+        bb_index: 2
+      }
+      weight: 0
+      kind: BRANCH_OR_FALLTHROUGH
+    }
+    out_edges {
+      sink : {
+        function_index: 200
+        bb_index: 0
+      }
+      weight: 20
+      kind: CALL
+    }
+  }
+  node {
+    bb_id: 1
+    size: 10
+    out_edges {
+      sink : {
+        function_index: 100
+        bb_index: 4
+      }
+      weight: 20
+      kind: BRANCH_OR_FALLTHROUGH
+    }
+    out_edges {
+      sink : {
+        function_index: 100
+        bb_index: 3
+      }
+      weight: 0
+      kind: BRANCH_OR_FALLTHROUGH
+    }
+  }
+  node {
+    bb_id: 2
+    size: 10
+    metadata {
+      is_landing_pad: true
+    }
+    out_edges {
+      sink : {
+        function_index: 100
+        bb_index: 5
+      }
+      weight: 0
+      kind: BRANCH_OR_FALLTHROUGH
+    }
+  }
+  node {
+    bb_id: 3
+    size: 10
+    metadata {
+      is_landing_pad: true
+    }    out_edges {
+      sink : {
+        function_index: 100
+        bb_index: 5
+      }
+      weight: 0
+      kind: BRANCH_OR_FALLTHROUGH
+    }
+  }
+  node {
+    bb_id: 4
+    size: 10
+    out_edges {
+      sink : {
+        function_index: 100
+        bb_index: 5
+      }
+      weight: 20
+      kind: BRANCH_OR_FALLTHROUGH
+    }
+  }
+  node {
+    bb_id: 5
+    size: 10
+  }
+}
+
+cfg {
+  name: "bar"
+  function_index: 200
+  node {
+    bb_id: 0
+    size: 10
+    out_edges {
+      sink : {
+        function_index: 100
+        bb_index: 0
+      }
+      weight: 20
+      kind: RETURN
+    }
+  }
+}
+

propeller/testdata/call_from_simple_loop.protobuf

@@ -0,0 +1,87 @@
+## CFG consisting of a function calling another function in a simple loop.
+##
+##         foo <------- baz
+##          |     100
+##        5 |
+##          |
+##          v      100
+##   +---> foo.1 -------> bar
+##   |       |
+##   | 100   |100
+##   |       |
+##   |       v   
+##   +--- foo.2
+##
+
+cfg {
+  name: "foo"
+  function_index: 1
+  node {
+    bb_id: 0
+    size: 10
+    out_edges {
+      sink : {
+        function_index: 1
+        bb_index: 1
+      }
+      weight: 5
+      kind: BRANCH_OR_FALLTHROUGH
+    }
+  }
+  node {
+    bb_id: 1
+    size: 4
+    out_edges {
+      sink : {
+        function_index: 1
+        bb_index: 2
+      }
+      weight: 100
+      kind: BRANCH_OR_FALLTHROUGH
+    }
+    out_edges {
+      sink : {
+        function_index: 2
+        bb_index: 0
+      }
+      weight: 100
+      kind: CALL
+    }
+  }
+  node {
+    bb_id: 2
+    size: 6
+    out_edges {
+      sink : {
+        function_index: 1
+        bb_index: 1
+      }
+      weight: 100
+      kind: BRANCH_OR_FALLTHROUGH
+    }
+  }
+}
+cfg {
+  name: "bar"
+  function_index: 2
+  node {
+    bb_id: 0
+    size: 2
+  }
+}
+cfg {
+  name: "baz"
+  function_index: 3
+  node {
+    bb_id: 0
+    size: 6
+    out_edges {
+      sink : {
+        function_index: 1
+        bb_index: 0
+      }
+      weight: 100
+      kind: CALL
+    }
+  }
+}