[llvm-commits] [llvm] r157829 - /llvm/trunk/test/Verifier/dominates.ll

[Rafael Espindola]

Author: rafael
Date: Fri Jun  1 14:24:57 2012
New Revision: 157829

URL: http://llvm.org/viewvc/llvm-project?rev=157829&view=rev
Log:
Add some tests checking that the verifier rejects cases where a definition
doesn't dominate a use.

Added:
    llvm/trunk/test/Verifier/dominates.ll

Added: llvm/trunk/test/Verifier/dominates.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Verifier/dominates.ll?rev=157829&view=auto
==============================================================================
--- llvm/trunk/test/Verifier/dominates.ll (added)
+++ llvm/trunk/test/Verifier/dominates.ll Fri Jun  1 14:24:57 2012
@@ -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 ]
+}