Imported Upstream version 6.0.0.172

Former-commit-id: f3cc9b82f3e5bd8f0fd3ebc098f789556b44e9cd

external/llvm/test/Verifier/dominates.ll

@@ -0,0 +1,70 @@
+; RUN: not llvm-as < %s -o /dev/null 2>&1 | FileCheck %s
+
+define i32 @f1(i32 %x) {
+       %y = add i32 %z, 1
+       %z = add i32 %x, 1
+       ret i32 %y
+; CHECK: Instruction does not dominate all uses!
+; CHECK-NEXT:  %z = add i32 %x, 1
+; CHECK-NEXT:  %y = add i32 %z, 1
+}
+
+declare i32 @g()
+define void @f2(i32 %x) personality i32 ()* @g {
+bb0:
+  %y1 = invoke i32 @g() to label %bb1 unwind label %bb2
+bb1:
+  ret void
+bb2:
+  %y2 = phi i32 [%y1, %bb0]
+  %y3 = landingpad i32
+          cleanup
+  ret void
+; CHECK: Instruction does not dominate all uses!
+; CHECK-NEXT:  %y1 = invoke i32 @g()
+; CHECK-NEXT:        to label %bb1 unwind label %bb2
+; CHECK-NEXT:  %y2 = phi i32 [ %y1, %bb0 ]
+}
+
+define void @f3(i32 %x) personality i32 ()* @g {
+bb0:
+  %y1 = invoke i32 @g() to label %bb1 unwind label %bb2
+bb1:
+  ret void
+bb2:
+  %y2 = landingpad i32
+          cleanup
+  br label %bb3
+bb3:
+  %y3 = phi i32 [%y1, %bb2]
+  ret void
+; CHECK: Instruction does not dominate all uses!
+; CHECK-NEXT:  %y1 = invoke i32 @g()
+; CHECK-NEXT:          to label %bb1 unwind label %bb2
+; CHECK-NEXT:  %y3 = phi i32 [ %y1, %bb2 ]
+}
+
+define void @f4(i32 %x) {
+bb0:
+  br label %bb1
+bb1:
+  %y3 = phi i32 [%y1, %bb0]
+  %y1 = add i32 %x, 1
+  ret void
+; CHECK: Instruction does not dominate all uses!
+; CHECK-NEXT:  %y1 = add i32 %x, 1
+; CHECK-NEXT:  %y3 = phi i32 [ %y1, %bb0 ]
+}
+
+define void @f5() {
+entry:
+  br label %next
+
+next:
+  %y = phi i32 [ 0, %entry ]
+  %x = phi i32 [ %y, %entry ]
+  ret void
+; CHECK: Instruction does not dominate all uses!
+; CHECK-NEXT:  %y = phi i32 [ 0, %entry ]
+; CHECK-NEXT:  %x = phi i32 [ %y, %entry ]
+}