do not emit code in a label after a returnfail

1 files changed, 35 insertions, 0 deletions

diff --git a/tests/cases/breakinthemiddle2.ll b/tests/cases/breakinthemiddle2.ll
new file mode 100644
index 00000000..318b49dc
--- /dev/null
+++ b/tests/cases/breakinthemiddle2.ll
@@ -0,0 +1,35 @@
+@.str = private constant [15 x i8] c"hello, world!\0A\00", align 1 ; [#uses=1]
+
+define linkonce_odr i32 @main() align 2 {
+  %333 = call i32 @printf(i8* getelementptr inbounds ([15 x i8]* @.str, i32 0, i32 0)) ; [#uses=0]
+  %199 = trunc i8 1 to i1                        ; [#uses=1]
+  br i1 %199, label %label555, label %label569
+
+label555:                                     ; preds = %0
+  br label %label569 ; branch should ignore all code after it in the block
+                                              ; No predecessors!
+  %a472 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
+          cleanup
+  %a473 = extractvalue { i8*, i32 } %a472, 0
+  %a474 = extractvalue { i8*, i32 } %a472, 1
+  br label %label569
+
+label569:                                     ; preds = %0
+  br i1 %199, label %label990, label %label999
+
+label990:
+  ret i32 0 ; ret should ignore all code after it in the block
+                                              ; No predecessors!
+  %a472 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
+          cleanup
+  %a473 = extractvalue { i8*, i32 } %a472, 0
+  %a474 = extractvalue { i8*, i32 } %a472, 1
+  br label %label569
+
+label999:                                     ; preds = %555
+  ret i32 0
+}
+
+declare i32 @printf(i8*)
+declare i32 @__gxx_personality_v0(...)
+