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-rw-r--r--test/Transforms/JumpThreading/basic.ll23
1 files changed, 18 insertions, 5 deletions
diff --git a/test/Transforms/JumpThreading/basic.ll b/test/Transforms/JumpThreading/basic.ll
index ac31cdb..34b4243 100644
--- a/test/Transforms/JumpThreading/basic.ll
+++ b/test/Transforms/JumpThreading/basic.ll
@@ -383,11 +383,11 @@ return:
}
-;;; Duplicate condition to avoid xor of cond.
-;;; TODO: Make this happen.
-define i32 @testXX(i1 %cond, i1 %cond2) {
+;; Duplicate condition to avoid xor of cond.
+;; rdar://7391699
+define i32 @test13(i1 %cond, i1 %cond2) {
Entry:
-; CHECK: @testXX
+; CHECK: @test13
%v1 = call i32 @f1()
br i1 %cond, label %Merge, label %F1
@@ -396,7 +396,8 @@ F1:
Merge:
%B = phi i1 [true, %Entry], [%cond2, %F1]
- %M = icmp eq i32 %v1, 192
+ %C = phi i32 [192, %Entry], [%v1, %F1]
+ %M = icmp eq i32 %C, 192
%N = xor i1 %B, %M
br i1 %N, label %T2, label %F2
@@ -405,6 +406,18 @@ T2:
F2:
ret i32 %v1
+
+;; FIXME: CONSTANT FOLD on clone and when phi gets eliminated.
+
+; CHECK: Entry.Merge_crit_edge:
+; CHECK-NEXT: %M1 = icmp eq i32 192, 192
+; CHECK-NEXT: %N2 = xor i1 true, %M1
+; CHECK-NEXT: br i1 %N2, label %T2, label %F2
+
+; CHECK: Merge:
+; CHECK-NEXT: %M = icmp eq i32 %v1, 192
+; CHECK-NEXT: %N = xor i1 %cond2, %M
+; CHECK-NEXT: br i1 %N, label %T2, label %F2
}