1 files changed, 68 insertions, 0 deletions
diff --git a/test/Transforms/Util/PredicateInfo/diamond.ll b/test/Transforms/Util/PredicateInfo/diamond.ll
new file mode 100644
index 0000000000000..e3f56d88caf0e
--- /dev/null
+++ b/test/Transforms/Util/PredicateInfo/diamond.ll
@@ -0,0 +1,68 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt -print-predicateinfo < %s 2>&1 | FileCheck %s
+define i1 @f(i32 %x, i1 %y) {
+; CHECK-LABEL: @f(
+; CHECK-NEXT:    br i1 [[Y:%.*]], label [[BB0:%.*]], label [[BB1:%.*]]
+; CHECK:       bb0:
+; CHECK-NEXT:    [[CMP:%.*]] = icmp sge i32 [[X:%.*]], 0
+; CHECK:         [[X_0:%.*]] = call i32 @llvm.ssa.copy.i32(i32 [[X]])
+; CHECK-NEXT:    br i1 [[CMP]], label [[BB2:%.*]], label [[BB3:%.*]]
+; CHECK:       bb1:
+; CHECK-NEXT:    [[X2:%.*]] = add nuw nsw i32 [[X]], 1
+; CHECK-NEXT:    [[CMP2:%.*]] = icmp sge i32 [[X2]], 2
+; CHECK:         [[X2_0:%.*]] = call i32 @llvm.ssa.copy.i32(i32 [[X2]])
+; CHECK-NEXT:    br i1 [[CMP2]], label [[BB2]], label [[BB3]]
+; CHECK:       bb2:
+; CHECK-NEXT:    [[X3:%.*]] = phi i32 [ [[X_0]], [[BB0]] ], [ [[X2_0]], [[BB1]] ]
+; CHECK-NEXT:    br label [[BB3]]
+; CHECK:       bb3:
+; CHECK-NEXT:    ret i1 false
+;
+  br i1 %y, label %bb0, label %bb1
+  bb0:
+  %cmp = icmp sge i32 %x, 0  ; x > 0
+  br i1 %cmp, label %bb2, label %bb3
+  bb1:
+  %x2 = add nsw nuw i32 %x, 1
+  %cmp2 = icmp sge i32 %x2, 2     ; x+1 > 2 / x > 1
+  br i1 %cmp2, label %bb2, label %bb3
+  bb2:
+  %x3 = phi i32 [ %x, %bb0 ], [ %x2, %bb1 ]
+  br label %bb3
+  bb3:
+  ret i1 0
+}
+
+define i1 @g(i32 %x, i1 %y) {
+; CHECK-LABEL: @g(
+; CHECK-NEXT:    br i1 [[Y:%.*]], label [[BB0:%.*]], label [[BB1:%.*]]
+; CHECK:       bb0:
+; CHECK-NEXT:    [[CMP:%.*]] = icmp sge i32 [[X:%.*]], 0
+; CHECK:         [[X_0:%.*]] = call i32 @llvm.ssa.copy.i32(i32 [[X]])
+; CHECK-NEXT:    br i1 [[CMP]], label [[BB3:%.*]], label [[BB2:%.*]]
+; CHECK:       bb1:
+; CHECK-NEXT:    [[X2:%.*]] = add nuw nsw i32 [[X]], 1
+; CHECK-NEXT:    [[CMP2:%.*]] = icmp sge i32 [[X2]], 2
+; CHECK:         [[X2_0:%.*]] = call i32 @llvm.ssa.copy.i32(i32 [[X2]])
+; CHECK-NEXT:    br i1 [[CMP2]], label [[BB3]], label [[BB2]]
+; CHECK:       bb2:
+; CHECK-NEXT:    [[X3:%.*]] = phi i32 [ [[X_0]], [[BB0]] ], [ [[X2_0]], [[BB1]] ]
+; CHECK-NEXT:    br label [[BB3]]
+; CHECK:       bb3:
+; CHECK-NEXT:    ret i1 false
+;
+  br i1 %y, label %bb0, label %bb1
+  bb0:
+  %cmp = icmp sge i32 %x, 0  ; x > 0
+  br i1 %cmp, label %bb3, label %bb2
+  bb1:
+  %x2 = add nsw nuw i32 %x, 1
+  %cmp2 = icmp sge i32 %x2, 2     ; x+1 > 2 / x > 1
+  br i1 %cmp2, label %bb3, label %bb2
+  bb2:
+  %x3 = phi i32 [ %x, %bb0 ], [ %x2, %bb1 ]
+  br label %bb3
+  bb3:
+  ret i1 0
+}
+