[SelectionDAGBuilder] Adds support for landingpads of token type
Summary: This patch adds a check in visitLandingPad to see if landingpad's result type is token type. If so, do not create DAG nodes for its exception pointer and selector value. This patch enables the back end to handle landingpads of token type.
Reviewers: JosephTremoulet, majnemer, rnk
Subscribers: sanjoy, llvm-commits
Differential Revision: http://reviews.llvm.org/D15405
llvm-svn: 255749
diff --git a/llvm/test/CodeGen/X86/inconsistent_landingpad.ll b/llvm/test/CodeGen/X86/inconsistent_landingpad.ll
new file mode 100644
index 0000000..495e999
--- /dev/null
+++ b/llvm/test/CodeGen/X86/inconsistent_landingpad.ll
@@ -0,0 +1,30 @@
+; RUN: not llvm-as -disable-output <%s 2>&1 | FileCheck %s
+
+define void @test() personality i32 (...)* @dummy_personality {
+; CHECK: The landingpad instruction should have a consistent result type inside a function
+entry:
+ invoke void @dummy1()
+ to label %next unwind label %unwind1
+
+unwind1:
+ %lp1 = landingpad token
+ cleanup
+ br label %return
+
+next:
+ invoke void @dummy2()
+ to label %return unwind label %unwind2
+
+unwind2:
+ %lp2 = landingpad { i8*, i32 }
+ cleanup
+ br label %return
+
+return:
+ ret void
+}
+
+declare void @dummy1()
+declare void @dummy2()
+
+declare i32 @dummy_personality(...)