Fix inlining to not lose the "cleanup" clause from landingpads

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

diff --git a/test/Transforms/CorrelatedValuePropagation/basic.ll b/test/Transforms/CorrelatedValuePropagation/basic.ll
index 24666e901e9ebd83a16fc491c1973880a813bb34..9a2264793c50c7998e359511430d9dda2880d52b 100644 (file)
--- a/test/Transforms/CorrelatedValuePropagation/basic.ll
+++ b/test/Transforms/CorrelatedValuePropagation/basic.ll
@@ -1,7 +1,7 @@
 ; RUN: opt < %s -correlated-propagation -S | FileCheck %s
 ; PR2581
 
-; CHECK: @test1
+; CHECK-LABEL: @test1(
 define i32 @test1(i1 %C) nounwind  {
         br i1 %C, label %exit, label %body
 
@@ -18,7 +18,7 @@ exit:           ; preds = %0
 
 ; PR4420
 declare i1 @ext()
-; CHECK: @test2
+; CHECK-LABEL: @test2(
 define i1 @test2() {
 entry:
         %cond = tail call i1 @ext()             ; <i1> [#uses=2]
@@ -42,7 +42,7 @@ bb3:            ; preds = %bb1
 
 ; PR4855
 @gv = internal constant i8 7
-; CHECK: @test3
+; CHECK-LABEL: @test3(
 define i8 @test3(i8* %a) nounwind {
 entry:
         %cond = icmp eq i8* %a, @gv
@@ -52,14 +52,13 @@ bb:             ; preds = %entry
         ret i8 0
 
 bb2:            ; preds = %entry
-; CHECK-NOT: load i8* %a
+; CHECK: %should_be_const = load i8* @gv
         %should_be_const = load i8* %a
-; CHECK: ret i8 7
         ret i8 %should_be_const
 }
 
 ; PR1757
-; CHECK: @test4
+; CHECK-LABEL: @test4(
 define i32 @test4(i32) {
 EntryBlock:
 ; CHECK: icmp sgt i32 %0, 2  
@@ -80,4 +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-LABEL: @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-LABEL: @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-LABEL: @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-LABEL: @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-LABEL: @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
+}