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authorChris Lattner <sabre@nondot.org>2009-11-12 01:41:34 +0000
committerChris Lattner <sabre@nondot.org>2009-11-12 01:41:34 +0000
commitba4561695890335ae7f089f7872a4d2d09236aed (patch)
tree5b5b3774668ed02cb46d261b74b4c19ba9da8147 /llvm/test
parent3f80d8519130ab0d9139f0023076bd18216d6c5f (diff)
downloadbcm5719-llvm-ba4561695890335ae7f089f7872a4d2d09236aed.tar.gz
bcm5719-llvm-ba4561695890335ae7f089f7872a4d2d09236aed.zip
with the new code we can thread non-instruction values. This
allows us to handle the test10 testcase. llvm-svn: 86924
Diffstat (limited to 'llvm/test')
-rw-r--r--llvm/test/Transforms/JumpThreading/basic.ll42
1 files changed, 40 insertions, 2 deletions
diff --git a/llvm/test/Transforms/JumpThreading/basic.ll b/llvm/test/Transforms/JumpThreading/basic.ll
index 514c865f9c9..4a1a2868cae 100644
--- a/llvm/test/Transforms/JumpThreading/basic.ll
+++ b/llvm/test/Transforms/JumpThreading/basic.ll
@@ -285,12 +285,50 @@ F2:
+; CHECK: @test10
+declare i32 @test10f1()
+declare i32 @test10f2()
+declare void @test10f3()
+
+;; Non-local condition threading.
+define i32 @test10(i1 %cond) {
+; CHECK: @test10
+; CHECK-NEXT: br i1 %cond, label %T2, label %F2
+ br i1 %cond, label %T1, label %F1
+
+T1:
+ %v1 = call i32 @test10f1()
+ br label %Merge
+
+; CHECK: %v1 = call i32 @test10f1()
+; CHECK-NEXT: call void @f3()
+; CHeCK-NEXT: ret i32 %v1
+
+F1:
+ %v2 = call i32 @test10f2()
+ br label %Merge
+
+Merge:
+ %B = phi i32 [%v1, %T1], [%v2, %F1]
+ br i1 %cond, label %T2, label %F2
+
+T2:
+ call void @f3()
+ ret i32 %B
+
+F2:
+ ret i32 %B
+}
+
+
+
+
;;; Duplicate condition to avoid xor of cond.
;;; TODO: Make this happen.
-define i32 @test10(i1 %cond, i1 %cond2) {
+define i32 @test11(i1 %cond, i1 %cond2) {
Entry:
-; CHECK: @test10
+; CHECK: @test11
%v1 = call i32 @f1()
br i1 %cond, label %Merge, label %F1
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