[SimplifyCFG] Further improve our ability to remove redundant catchpads

[oota-llvm.git] / test / Transforms / SimplifyCFG / wineh-unreachable.ll

diff --git a/test/Transforms/SimplifyCFG/wineh-unreachable.ll b/test/Transforms/SimplifyCFG/wineh-unreachable.ll
index d871e17b6b04959ad2331242edb458158d1d39b4..c5d6490ba5d5789f90d98ba185ec23c41d0bfbd3 100644 (file)
--- a/test/Transforms/SimplifyCFG/wineh-unreachable.ll
+++ b/test/Transforms/SimplifyCFG/wineh-unreachable.ll
@@ -99,3 +99,69 @@ catch.body:
 exit:
   ret void
 }
+
+; CHECK-LABEL: define void @test7()
+define void @test7() personality i8* bitcast (void ()* @Personality to i8*) {
+entry:
+  invoke void @f()
+          to label %exit unwind label %catch.pad
+
+catch.pad:
+  %cs1 = catchswitch within none [label %catch.body, label %catch.body2] unwind to caller
+  ; CHECK: catchswitch within none [label %catch.body] unwind to caller
+
+catch.body:
+  %catch = catchpad within %cs1 [i8* null, i32 0, i8* null]
+  catchret from %catch to label %exit
+
+catch.body2:
+  %catch2 = catchpad within %cs1 [i8* null, i32 0, i8* null]
+  catchret from %catch2 to label %exit
+
+exit:
+  ret void
+}
+
+; CHECK-LABEL: define void @test8()
+define void @test8() personality i8* bitcast (void ()* @Personality to i8*) {
+entry:
+  invoke void @f()
+          to label %exit unwind label %catch.pad
+
+catch.pad:
+  %cs1 = catchswitch within none [label %catch.body, label %catch.body2] unwind to caller
+  ; CHECK: catchswitch within none [label %catch.body] unwind to caller
+
+catch.body2:
+  %catch2 = catchpad within %cs1 [i8* null, i32 0, i8* null]
+  catchret from %catch2 to label %exit
+
+catch.body:
+  %catch = catchpad within %cs1 [i8* null, i32 0, i8* null]
+  catchret from %catch to label %exit
+
+exit:
+  ret void
+}
+
+; CHECK-LABEL: define void @test9()
+define void @test9() personality i8* bitcast (void ()* @Personality to i8*) {
+entry:
+  invoke void @f()
+          to label %exit unwind label %catch.pad
+
+catch.pad:
+  %cs1 = catchswitch within none [label %catch.body, label %catch.body2] unwind to caller
+  ; CHECK: catchswitch within none [label %catch.body, label %catch.body2] unwind to caller
+
+catch.body:
+  %catch = catchpad within %cs1 [i8* null, i32 0, i8* null]
+  catchret from %catch to label %exit
+
+catch.body2:
+  %catch2 = catchpad within %cs1 [i8* null, i32 64, i8* null]
+  catchret from %catch2 to label %exit
+
+exit:
+  ret void
+}