2 files changed, 159 insertions, 0 deletions

diff --git a/test/Transforms/JumpThreading/crash.ll b/test/Transforms/JumpThreading/crash.ll
index 361ec6cfb5a1..c65fd1014be4 100644
--- a/test/Transforms/JumpThreading/crash.ll
+++ b/test/Transforms/JumpThreading/crash.ll
@@ -234,3 +234,93 @@ bb2:
 return:     
   ret void
 }
+
+; PR6119
+define i32 @test8(i32 %action) nounwind {
+entry:
+  switch i32 %action, label %lor.rhs [
+    i32 1, label %if.then
+    i32 0, label %lor.end
+  ]
+
+if.then:                                          ; preds = %for.cond, %lor.end, %entry
+  ret i32 undef
+
+lor.rhs:                                          ; preds = %entry
+  br label %lor.end
+
+lor.end:                                          ; preds = %lor.rhs, %entry
+  %cmp103 = xor i1 undef, undef                   ; <i1> [#uses=1]
+  br i1 %cmp103, label %for.cond, label %if.then
+
+for.cond:                                         ; preds = %for.body, %lor.end
+  br i1 undef, label %if.then, label %for.body
+
+for.body:                                         ; preds = %for.cond
+  br label %for.cond
+}
+
+; PR6119
+define i32 @test9(i32 %action) nounwind {
+entry:
+  switch i32 %action, label %lor.rhs [
+    i32 1, label %if.then
+    i32 0, label %lor.end
+  ]
+
+if.then:                                          ; preds = %for.cond, %lor.end, %entry
+  ret i32 undef
+
+lor.rhs:                                          ; preds = %entry
+  br label %lor.end
+
+lor.end:                                          ; preds = %lor.rhs, %entry
+  %0 = phi i1 [ undef, %lor.rhs ], [ true, %entry ] ; <i1> [#uses=1]
+  %cmp103 = xor i1 undef, %0                      ; <i1> [#uses=1]
+  br i1 %cmp103, label %for.cond, label %if.then
+
+for.cond:                                         ; preds = %for.body, %lor.end
+  br i1 undef, label %if.then, label %for.body
+
+for.body:                                         ; preds = %for.cond
+  br label %for.cond
+}
+
+; PR6119
+define i32 @test10(i32 %action, i32 %type) nounwind {
+entry:
+  %cmp2 = icmp eq i32 %type, 0                    ; <i1> [#uses=1]
+  switch i32 %action, label %lor.rhs [
+    i32 1, label %if.then
+    i32 0, label %lor.end
+  ]
+
+if.then:                                          ; preds = %for.cond, %lor.end, %entry
+  ret i32 undef
+
+lor.rhs:                                          ; preds = %entry
+  %cmp101 = icmp eq i32 %action, 2                ; <i1> [#uses=1]
+  br label %lor.end
+
+lor.end:                                          ; preds = %lor.rhs, %entry
+  %0 = phi i1 [ %cmp101, %lor.rhs ], [ true, %entry ] ; <i1> [#uses=1]
+  %cmp103 = xor i1 %cmp2, %0                      ; <i1> [#uses=1]
+  br i1 %cmp103, label %for.cond, label %if.then
+
+for.cond:                                         ; preds = %for.body, %lor.end
+  br i1 undef, label %if.then, label %for.body
+
+for.body:                                         ; preds = %for.cond
+  br label %for.cond
+}
+
+
+; PR6305
+define void @test11() nounwind {
+entry:
+  br label %A
+
+A:                                             ; preds = %entry
+  call void undef(i64 ptrtoint (i8* blockaddress(@test11, %A) to i64)) nounwind
+  unreachable
+}
diff --git a/test/Transforms/JumpThreading/or-undef.ll b/test/Transforms/JumpThreading/or-undef.ll
new file mode 100644
index 000000000000..6e359925b6c6
--- /dev/null
+++ b/test/Transforms/JumpThreading/or-undef.ll
@@ -0,0 +1,69 @@
+; RUN: opt -jump-threading -S %s | FileCheck %s
+; rdar://7620633
+
+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"
+target triple = "x86_64-apple-darwin11.0"
+
+define void @test1(i8* %args, i32 %from_tty) nounwind optsize ssp {
+entry:
+  %tmp = call i8* @f3(void (i8*)* null, i8* null) nounwind ; <i8*> [#uses=1]
+  %tmp1 = icmp eq i8* %args, null                 ; <i1> [#uses=1]
+  br i1 %tmp1, label %bb2, label %bb
+
+; CHECK: entry:
+; CHECK-NEXT: %tmp = call i8* @f3
+; CHECK-NEXT: %tmp1 = icmp eq i8* %args, null
+; CHECK-NEXT: br i1 %tmp1, label %bb7, label %bb
+
+bb:                                               ; preds = %entry
+  %tmp2 = call noalias i8** @buildargv(i8* %args) nounwind ; <i8**> [#uses=4]
+  %tmp3 = icmp eq i8** %tmp2, null                ; <i1> [#uses=1]
+  br i1 %tmp3, label %bb2, label %bb1
+
+bb1:                                              ; preds = %bb
+  call void @f2(i8** %tmp2) nounwind
+  br label %bb2
+
+bb2:                                              ; preds = %bb1, %bb, %entry
+  %argv.0 = phi i8** [ %tmp2, %bb1 ], [ %tmp2, %bb ], [ undef, %entry ] ; <i8**> [#uses=4]
+  %tmp5 = icmp eq i8* %args, null                 ; <i1> [#uses=1]
+  %tmp6 = icmp eq i8** %argv.0, null              ; <i1> [#uses=1]
+  %tmp7 = or i1 %tmp5, %tmp6                      ; <i1> [#uses=1]
+  br i1 %tmp7, label %bb7, label %bb5
+
+bb5:                                              ; preds = %bb2
+  %tmp8 = load i8** %argv.0, align 8              ; <i8*> [#uses=1]
+  %tmp9 = icmp eq i8* %tmp8, null                 ; <i1> [#uses=1]
+  br i1 %tmp9, label %bb7, label %bb6
+
+bb6:                                              ; preds = %bb5
+  %tmp10 = load i8** %argv.0, align 8             ; <i8*> [#uses=1]
+  %tmp11 = load i8* %tmp10, align 1               ; <i8> [#uses=1]
+  %tmp12 = icmp eq i8 %tmp11, 0                   ; <i1> [#uses=1]
+  br i1 %tmp12, label %bb7, label %bb8
+
+bb7:                                              ; preds = %bb6, %bb5, %bb2
+  call void @f1() nounwind optsize ssp
+  br label %bb9
+
+bb8:                                              ; preds = %bb6
+  %tmp13 = load i8** %argv.0, align 8             ; <i8*> [#uses=1]
+  %tmp14 = call i64 @f5(i8* %tmp13) nounwind      ; <i64> [#uses=0]
+  br label %bb9
+
+bb9:                                              ; preds = %bb8, %bb7
+  call void @f4(i8* %tmp) nounwind
+  ret void
+}
+
+declare noalias i8** @buildargv(i8*)
+
+declare void @f2(i8**)
+
+declare void @f4(i8*)
+
+declare i8* @f3(void (i8*)*, i8*)
+
+declare void @f1()
+
+declare i64 @f5(i8*)