LoopVectorize: Vectorize all accesses in address space zero with unit stride

[oota-llvm.git] / test / Transforms / CorrelatedValuePropagation / basic.ll

diff --git a/test/Transforms/CorrelatedValuePropagation/basic.ll b/test/Transforms/CorrelatedValuePropagation/basic.ll
index 270c048e2f98b9fe9a874a9f3bcf46d86e1033bf..39c437ccfae989db41693f51027900f19faaec99 100644 (file)
--- a/test/Transforms/CorrelatedValuePropagation/basic.ll
+++ b/test/Transforms/CorrelatedValuePropagation/basic.ll
@@ -79,4 +79,123 @@ Impossible:
 
 LessThanOrEqualToTwo:
   ret i32 0
-}
\ No newline at end of file
+}
+
+declare i32* @f(i32*)
+define void @test5(i32* %x, i32* %y) {
+; CHECK: @test5
+entry:
+  %pre = icmp eq i32* %x, null
+  br i1 %pre, label %return, label %loop
+
+loop:
+  %phi = phi i32* [ %sel, %loop ], [ %x, %entry ]
+; CHECK: %phi = phi i32* [ %f, %loop ], [ %x, %entry ]
+  %f = tail call i32* @f(i32* %phi)
+  %cmp1 = icmp ne i32* %f, %y
+  %sel = select i1 %cmp1, i32* %f, i32* null
+  %cmp2 = icmp eq i32* %sel, null
+  br i1 %cmp2, label %return, label %loop
+
+return:
+  ret void
+}
+
+define i32 @switch1(i32 %s) {
+; CHECK: @switch1
+entry:
+  %cmp = icmp slt i32 %s, 0
+  br i1 %cmp, label %negative, label %out
+
+negative:
+  switch i32 %s, label %out [
+; CHECK: switch i32 %s, label %out
+    i32 0, label %out
+; CHECK-NOT: i32 0
+    i32 1, label %out
+; CHECK-NOT: i32 1
+    i32 -1, label %next
+; CHECK: i32 -1, label %next
+    i32 -2, label %next
+; CHECK: i32 -2, label %next
+    i32 2, label %out
+; CHECK-NOT: i32 2
+    i32 3, label %out
+; CHECK-NOT: i32 3
+  ]
+
+out:
+  %p = phi i32 [ 1, %entry ], [ -1, %negative ], [ -1, %negative ], [ -1, %negative ], [ -1, %negative ], [ -1, %negative ]
+  ret i32 %p
+
+next:
+  %q = phi i32 [ 0, %negative ], [ 0, %negative ]
+  ret i32 %q
+}
+
+define i32 @switch2(i32 %s) {
+; CHECK: @switch2
+entry:
+  %cmp = icmp sgt i32 %s, 0
+  br i1 %cmp, label %positive, label %out
+
+positive:
+  switch i32 %s, label %out [
+    i32 0, label %out
+    i32 -1, label %next
+    i32 -2, label %next
+  ]
+; CHECK: br label %out
+
+out:
+  %p = phi i32 [ -1, %entry ], [ 1, %positive ], [ 1, %positive ]
+  ret i32 %p
+
+next:
+  %q = phi i32 [ 0, %positive ], [ 0, %positive ]
+  ret i32 %q
+}
+
+define i32 @switch3(i32 %s) {
+; CHECK: @switch3
+entry:
+  %cmp = icmp sgt i32 %s, 0
+  br i1 %cmp, label %positive, label %out
+
+positive:
+  switch i32 %s, label %out [
+    i32 -1, label %out
+    i32 -2, label %next
+    i32 -3, label %next
+  ]
+; CHECK: br label %out
+
+out:
+  %p = phi i32 [ -1, %entry ], [ 1, %positive ], [ 1, %positive ]
+  ret i32 %p
+
+next:
+  %q = phi i32 [ 0, %positive ], [ 0, %positive ]
+  ret i32 %q
+}
+
+define void @switch4(i32 %s) {
+; CHECK: @switch4
+entry:
+  %cmp = icmp eq i32 %s, 0
+  br i1 %cmp, label %zero, label %out
+
+zero:
+  switch i32 %s, label %out [
+    i32 0, label %next
+    i32 1, label %out
+    i32 -1, label %out
+  ]
+; CHECK: br label %next
+
+out:
+  ret void
+
+next:
+  ret void
+}