1 files changed, 117 insertions, 0 deletions
diff --git a/test/Transforms/SimplifyCFG/invoke.ll b/test/Transforms/SimplifyCFG/invoke.ll
new file mode 100644
index 0000000000..ddced6b94d
--- /dev/null
+++ b/test/Transforms/SimplifyCFG/invoke.ll
@@ -0,0 +1,117 @@
+; RUN: opt < %s -simplifycfg -S | FileCheck %s
+target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
+
+declare i32 @__gxx_personality_v0(...)
+declare void @__cxa_call_unexpected(i8*)
+declare i32 @read_only() nounwind readonly
+declare i32 @nounwind_fn() nounwind
+declare i32 @fn()
+
+
+; CHECK: @f1
+define i8* @f1() nounwind uwtable ssp {
+entry:
+; CHECK: call void @llvm.trap()
+; CHECK: unreachable
+  %call = invoke noalias i8* undef()
+          to label %invoke.cont unwind label %lpad
+
+invoke.cont:
+  ret i8* %call
+
+lpad:
+  %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
+          filter [0 x i8*] zeroinitializer
+  %1 = extractvalue { i8*, i32 } %0, 0
+  tail call void @__cxa_call_unexpected(i8* %1) noreturn nounwind
+  unreachable
+}
+
+; CHECK: @f2
+define i8* @f2() nounwind uwtable ssp {
+entry:
+; CHECK: call void @llvm.trap()
+; CHECK: unreachable
+  %call = invoke noalias i8* null()
+          to label %invoke.cont unwind label %lpad
+
+invoke.cont:
+  ret i8* %call
+
+lpad:
+  %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
+          filter [0 x i8*] zeroinitializer
+  %1 = extractvalue { i8*, i32 } %0, 0
+  tail call void @__cxa_call_unexpected(i8* %1) noreturn nounwind
+  unreachable
+}
+
+; CHECK: @f3
+define i32 @f3() nounwind uwtable ssp {
+; CHECK-NEXT: entry
+entry:
+; CHECK-NEXT: ret i32 3
+  %call = invoke i32 @read_only()
+          to label %invoke.cont unwind label %lpad
+
+invoke.cont:
+  ret i32 3
+
+lpad:
+  %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
+          filter [0 x i8*] zeroinitializer
+  %1 = extractvalue { i8*, i32 } %0, 0
+  tail call void @__cxa_call_unexpected(i8* %1) noreturn nounwind
+  unreachable
+}
+
+; CHECK: @f4
+define i32 @f4() nounwind uwtable ssp {
+; CHECK-NEXT: entry
+entry:
+; CHECK-NEXT: call i32 @read_only()
+  %call = invoke i32 @read_only()
+          to label %invoke.cont unwind label %lpad
+
+invoke.cont:
+; CHECK-NEXT: ret i32 %call
+  ret i32 %call
+
+lpad:
+  %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
+          filter [0 x i8*] zeroinitializer
+  %1 = extractvalue { i8*, i32 } %0, 0
+  tail call void @__cxa_call_unexpected(i8* %1) noreturn nounwind
+  unreachable
+}
+
+; CHECK: @f5
+define i32 @f5(i1 %cond, i8* %a, i8* %b) {
+entry:
+  br i1 %cond, label %x, label %y
+
+x:
+; CHECK: invoke i32 @fn()
+  %call = invoke i32 @fn()
+          to label %cont unwind label %lpad
+
+y:
+; CHECK: call i32 @nounwind_fn()
+  %call2 = invoke i32 @nounwind_fn()
+           to label %cont unwind label %lpad
+
+cont:
+; CHECK: phi i32
+; CHECK: ret i32 %phi
+  %phi = phi i32 [%call, %x], [%call2, %y]
+  ret i32 %phi
+
+lpad:
+; CHECK-NOT: phi
+  %phi2 = phi i8* [%a, %x], [%b, %y]
+  %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
+          filter [0 x i8*] zeroinitializer
+; CHECK: __cxa_call_unexpected(i8* %a)
+  tail call void @__cxa_call_unexpected(i8* %phi2) noreturn nounwind
+  unreachable
+}