SLPVectorizer: Sink and enable CSE for ExtractElements.

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

diff --git a/test/Transforms/JumpThreading/basic.ll b/test/Transforms/JumpThreading/basic.ll
index a2a5c1b3fe388873770010dc95b552b443b50f28..fe3dc77c9c13f8ac70806f5c1a59422945d25e34 100644 (file)
--- a/test/Transforms/JumpThreading/basic.ll
+++ b/test/Transforms/JumpThreading/basic.ll
@@ -1,4 +1,4 @@
-; RUN: opt %s -jump-threading -S -enable-jump-threading-lvi | FileCheck %s
+; RUN: opt -jump-threading -S < %s | FileCheck %s
 
 declare i32 @f1()
 declare i32 @f2()
@@ -452,3 +452,65 @@ right_ret:
        ret i32 1
 }
 
+; PR5652
+; CHECK: @test15
+define i32 @test15(i32 %len) {
+entry:
+; CHECK: icmp ult i32 %len, 13
+  %tmp = icmp ult i32 %len, 13
+  br i1 %tmp, label %check, label %exit0
+
+exit0:
+  ret i32 0
+
+check:
+  %tmp9 = icmp ult i32 %len, 21
+  br i1 %tmp9, label %exit1, label %exit2
+
+exit2:
+; CHECK-NOT: ret i32 2
+  ret i32 2
+
+exit1:
+  ret i32 1
+; CHECK: }
+}
+
+; In this test we check that block duplication is inhibited by the presence
+; of a function with the 'noduplicate' attribute.
+
+declare void @g()
+declare void @j()
+declare void @k()
+
+; CHECK: define void @h(i32 %p) {
+define void @h(i32 %p) {
+  %x = icmp ult i32 %p, 5
+  br i1 %x, label %l1, label %l2
+
+l1:
+  call void @j()
+  br label %l3
+
+l2:
+  call void @k()
+  br label %l3
+
+l3:
+; CHECK: call void @g() [[NOD:#[0-9]+]]
+; CHECK-NOT: call void @g() [[NOD]]
+  call void @g() noduplicate
+  %y = icmp ult i32 %p, 5
+  br i1 %y, label %l4, label %l5
+
+l4:
+  call void @j()
+  ret void
+
+l5:
+  call void @k()
+  ret void
+; CHECK: }
+}
+
+; CHECK: attributes [[NOD]] = { noduplicate }