blockfreq: Only one mass distribution per node

[oota-llvm.git] / test / Analysis / BlockFrequencyInfo / double_backedge.ll

diff --git a/test/Analysis/BlockFrequencyInfo/double_backedge.ll b/test/Analysis/BlockFrequencyInfo/double_backedge.ll
new file mode 100644 (file)
index 0000000..df8217c
--- /dev/null
+++ b/test/Analysis/BlockFrequencyInfo/double_backedge.ll
@@ -0,0 +1,27 @@
+; RUN: opt < %s -analyze -block-freq | FileCheck %s
+
+define void @double_backedge(i1 %x) {
+; CHECK-LABEL: Printing analysis {{.*}} for function 'double_backedge':
+; CHECK-NEXT: block-frequency-info: double_backedge
+entry:
+; CHECK-NEXT: entry: float = 1.0, int = [[ENTRY:[0-9]+]]
+  br label %loop
+
+loop:
+; CHECK-NEXT: loop: float = 10.0,
+  br i1 %x, label %exit, label %loop.1, !prof !0
+
+loop.1:
+; CHECK-NEXT: loop.1: float = 9.0,
+  br i1 %x, label %loop, label %loop.2, !prof !1
+
+loop.2:
+; CHECK-NEXT: loop.2: float = 5.0,
+  br label %loop
+
+exit:
+; CHECK-NEXT: exit: float = 1.0, int = [[ENTRY]]
+  ret void
+}
+!0 = metadata !{metadata !"branch_weights", i32 1, i32 9}
+!1 = metadata !{metadata !"branch_weights", i32 4, i32 5}