aboutsummaryrefslogtreecommitdiffstats
path: root/test/Verifier
diff options
context:
space:
mode:
Diffstat (limited to 'test/Verifier')
-rw-r--r--test/Verifier/dominates.ll57
1 files changed, 57 insertions, 0 deletions
diff --git a/test/Verifier/dominates.ll b/test/Verifier/dominates.ll
new file mode 100644
index 0000000..21aa7f6
--- /dev/null
+++ b/test/Verifier/dominates.ll
@@ -0,0 +1,57 @@
+; RUN: not llvm-as < %s -o /dev/null |& 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) {
+bb0:
+ %y1 = invoke i32 @g() to label %bb1 unwind label %bb2
+bb1:
+ ret void
+bb2:
+ %y2 = phi i32 [%y1, %bb0]
+ %y3 = landingpad i32 personality i32 ()* @g
+ cleanup
+ ret void
+; CHECK: Invoke result not available in the unwind destination!
+; 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) {
+bb0:
+ %y1 = invoke i32 @g() to label %bb1 unwind label %bb2
+bb1:
+ ret void
+bb2:
+ %y2 = landingpad i32 personality i32 ()* @g
+ cleanup
+ br label %bb3
+bb3:
+ %y3 = phi i32 [%y1, %bb2]
+ ret void
+; CHECK: Invoke result 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 ]
+}