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, 45 insertions, 0 deletions

diff --git a/llvm/test/Transforms/SimpleLoopUnswitch/cleanuppad.ll b/llvm/test/Transforms/SimpleLoopUnswitch/cleanuppad.ll
new file mode 100644
index 00000000000..1cade22b659
--- /dev/null
+++ b/llvm/test/Transforms/SimpleLoopUnswitch/cleanuppad.ll
@@ -0,0 +1,45 @@
+; RUN: opt -S -simple-loop-unswitch < %s | FileCheck %s
+; RUN: opt -S -simple-loop-unswitch -enable-mssa-loop-dependency=true -verify-memoryssa < %s | FileCheck %s
+target triple = "x86_64-pc-win32"
+
+define void @f(i32 %doit, i1 %x, i1 %y) personality i32 (...)* @__CxxFrameHandler3 {
+entry:
+  %tobool = icmp eq i32 %doit, 0
+  br label %for.cond
+
+for.cond:                                         ; preds = %for.inc, %entry
+  br i1 %x, label %for.body, label %for.end
+
+for.body:                                         ; preds = %for.cond
+  br i1 %tobool, label %if.then, label %for.inc
+
+if.then:                                          ; preds = %for.body
+  br i1 %y, label %for.inc, label %delete.notnull
+
+delete.notnull:                                   ; preds = %if.then
+  invoke void @g()
+          to label %invoke.cont unwind label %lpad
+
+invoke.cont:                                      ; preds = %delete.notnull
+  br label %for.inc
+
+lpad:                                             ; preds = %delete.notnull
+  %cp = cleanuppad within none []
+  cleanupret from %cp unwind to caller
+
+for.inc:                                          ; preds = %invoke.cont, %if.then, %for.body
+  br label %for.cond
+
+for.end:                                          ; preds = %for.cond
+  ret void
+}
+
+declare void @g()
+
+declare i32 @__CxxFrameHandler3(...)
+
+; CHECK-LABEL: define void @f(
+; CHECK: cleanuppad within none []
+; CHECK-NOT: cleanuppad
+
+attributes #0 = { ssp uwtable }