Revert "Temporarily Revert "Add basic loop fusion pass.""

The reversion apparently deleted the test/Transforms directory.

Will be re-reverting again.

llvm-svn: 358552

1 files changed, 26 insertions, 0 deletions

diff --git a/llvm/test/Transforms/CodeExtractor/2004-08-12-BlockExtractPHI.ll b/llvm/test/Transforms/CodeExtractor/2004-08-12-BlockExtractPHI.ll
new file mode 100644
index 00000000000..9f70bdc71b1
--- /dev/null
+++ b/llvm/test/Transforms/CodeExtractor/2004-08-12-BlockExtractPHI.ll
@@ -0,0 +1,26 @@
+; RUN: opt < %s -extract-blocks -disable-output
+
+define void @test1() {
+no_exit.0.i:
+        br i1 false, label %yylex.entry, label %yylex.entry
+
+yylex.entry:            ; preds = %no_exit.0.i, %no_exit.0.i
+        %tmp.1027 = phi i32 [ 0, %no_exit.0.i ], [ 0, %no_exit.0.i ]            ; <i32> [#uses=0]
+        ret void
+}
+
+define void @test2() {
+no_exit.0.i:
+        switch i32 0, label %yylex.entry [
+                 i32 0, label %yylex.entry
+                 i32 1, label %foo
+        ]
+
+yylex.entry:            ; preds = %no_exit.0.i, %no_exit.0.i
+        %tmp.1027 = phi i32 [ 0, %no_exit.0.i ], [ 0, %no_exit.0.i ]            ; <i32> [#uses=0]
+        ret void
+
+foo:            ; preds = %no_exit.0.i
+        ret void
+}
+