1 files changed, 78 insertions, 0 deletions
diff --git a/test/CodeGen/AArch64/br-to-eh-lpad.ll b/test/CodeGen/AArch64/br-to-eh-lpad.ll
new file mode 100644
index 0000000..20bffd9
--- /dev/null
+++ b/test/CodeGen/AArch64/br-to-eh-lpad.ll
@@ -0,0 +1,78 @@
+; RUN: llc < %s -mtriple=aarch64-apple-ios -verify-machineinstrs
+
+; This function tests that the machine verifier accepts an unconditional
+; branch from an invoke basic block, to its EH landing pad basic block.
+; The test is brittle and isn't ideally reduced, because in most cases the
+; branch would be removed (for instance, turned into a fallthrough), and in
+; that case, the machine verifier, which relies on analyzing branches for this
+; kind of verification, is unable to check anything, so accepts the CFG.
+
+define void @test_branch_to_landingpad() {
+entry:
+  br i1 undef, label %if.end50.thread, label %if.then6
+
+lpad:
+  %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__objc_personality_v0 to i8*)
+          catch %struct._objc_typeinfo.12.129.194.285.350.493.519.532.571.597.623.765* @"OBJC_EHTYPE_$_NSString"
+          catch %struct._objc_typeinfo.12.129.194.285.350.493.519.532.571.597.623.765* @OBJC_EHTYPE_id
+          catch i8* null
+  br i1 undef, label %invoke.cont33, label %catch.fallthrough
+
+catch.fallthrough:
+  %matches31 = icmp eq i32 undef, 0
+  br i1 %matches31, label %invoke.cont41, label %finally.catchall
+
+if.then6:
+  invoke void @objc_exception_throw()
+          to label %invoke.cont7 unwind label %lpad
+
+invoke.cont7:
+  unreachable
+
+if.end50.thread:
+  tail call void (i8*, ...)* @printf(i8* getelementptr inbounds ([17 x i8]* @.str1, i64 0, i64 0), i32 125)
+  tail call void (i8*, ...)* @printf(i8* getelementptr inbounds ([17 x i8]* @.str1, i64 0, i64 0), i32 128)
+  unreachable
+
+invoke.cont33:
+  tail call void (i8*, ...)* @printf(i8* getelementptr inbounds ([17 x i8]* @.str1, i64 0, i64 0), i32 119)
+  unreachable
+
+invoke.cont41:
+  invoke void @objc_exception_rethrow()
+          to label %invoke.cont43 unwind label %lpad40
+
+invoke.cont43:
+  unreachable
+
+lpad40:
+  %1 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__objc_personality_v0 to i8*)
+          catch i8* null
+  br label %finally.catchall
+
+finally.catchall:
+  tail call void (i8*, ...)* @printf(i8* getelementptr inbounds ([17 x i8]* @.str1, i64 0, i64 0), i32 125)
+  unreachable
+}
+
+%struct._objc_typeinfo.12.129.194.285.350.493.519.532.571.597.623.765 = type { i8**, i8*, %struct._class_t.10.127.192.283.348.491.517.530.569.595.621.764* }
+%struct._class_t.10.127.192.283.348.491.517.530.569.595.621.764 = type { %struct._class_t.10.127.192.283.348.491.517.530.569.595.621.764*, %struct._class_t.10.127.192.283.348.491.517.530.569.595.621.764*, %struct._objc_cache.0.117.182.273.338.481.507.520.559.585.611.754*, i8* (i8*, i8*)**, %struct._class_ro_t.9.126.191.282.347.490.516.529.568.594.620.763* }
+%struct._objc_cache.0.117.182.273.338.481.507.520.559.585.611.754 = type opaque
+%struct._class_ro_t.9.126.191.282.347.490.516.529.568.594.620.763 = type { i32, i32, i32, i8*, i8*, %struct.__method_list_t.2.119.184.275.340.483.509.522.561.587.613.756*, %struct._objc_protocol_list.6.123.188.279.344.487.513.526.565.591.617.760*, %struct._ivar_list_t.8.125.190.281.346.489.515.528.567.593.619.762*, i8*, %struct._prop_list_t.4.121.186.277.342.485.511.524.563.589.615.758* }
+%struct.__method_list_t.2.119.184.275.340.483.509.522.561.587.613.756 = type { i32, i32, [0 x %struct._objc_method.1.118.183.274.339.482.508.521.560.586.612.755] }
+%struct._objc_method.1.118.183.274.339.482.508.521.560.586.612.755 = type { i8*, i8*, i8* }
+%struct._objc_protocol_list.6.123.188.279.344.487.513.526.565.591.617.760 = type { i64, [0 x %struct._protocol_t.5.122.187.278.343.486.512.525.564.590.616.759*] }
+%struct._protocol_t.5.122.187.278.343.486.512.525.564.590.616.759 = type { i8*, i8*, %struct._objc_protocol_list.6.123.188.279.344.487.513.526.565.591.617.760*, %struct.__method_list_t.2.119.184.275.340.483.509.522.561.587.613.756*, %struct.__method_list_t.2.119.184.275.340.483.509.522.561.587.613.756*, %struct.__method_list_t.2.119.184.275.340.483.509.522.561.587.613.756*, %struct.__method_list_t.2.119.184.275.340.483.509.522.561.587.613.756*, %struct._prop_list_t.4.121.186.277.342.485.511.524.563.589.615.758*, i32, i32, i8** }
+%struct._ivar_list_t.8.125.190.281.346.489.515.528.567.593.619.762 = type { i32, i32, [0 x %struct._ivar_t.7.124.189.280.345.488.514.527.566.592.618.761] }
+%struct._ivar_t.7.124.189.280.345.488.514.527.566.592.618.761 = type { i32*, i8*, i8*, i32, i32 }
+%struct._prop_list_t.4.121.186.277.342.485.511.524.563.589.615.758 = type { i32, i32, [0 x %struct._prop_t.3.120.185.276.341.484.510.523.562.588.614.757] }
+%struct._prop_t.3.120.185.276.341.484.510.523.562.588.614.757 = type { i8*, i8* }
+
+@.str1 = external unnamed_addr constant [17 x i8], align 1
+@OBJC_EHTYPE_id = external global %struct._objc_typeinfo.12.129.194.285.350.493.519.532.571.597.623.765
+@"OBJC_EHTYPE_$_NSString" = external global %struct._objc_typeinfo.12.129.194.285.350.493.519.532.571.597.623.765, section "__DATA,__datacoal_nt,coalesced", align 8
+
+declare void @objc_exception_throw()
+declare void @objc_exception_rethrow()
+declare i32 @__objc_personality_v0(...)
+declare void @printf(i8* nocapture readonly, ...)