Remove the 'N' modifier from llvm-ar.

[oota-llvm.git] / test / Transforms / GVN / condprop.ll

diff --git a/test/Transforms/GVN/condprop.ll b/test/Transforms/GVN/condprop.ll
index c17c994011eb0a522fd5861bb73518f89223fbf8..9c28955801f77deb2e87ff04c2b3973dfdfa823a 100644 (file)
--- a/test/Transforms/GVN/condprop.ll
+++ b/test/Transforms/GVN/condprop.ll
@@ -111,3 +111,141 @@ case3:
 ; CHECK: call void @bar(i32 %x)
   ret void
 }
+
+; CHECK: @test5
+define i1 @test5(i32 %x, i32 %y) {
+  %cmp = icmp eq i32 %x, %y
+  br i1 %cmp, label %same, label %different
+
+same:
+  %cmp2 = icmp ne i32 %x, %y
+; CHECK: ret i1 false
+  ret i1 %cmp2
+
+different:
+  %cmp3 = icmp eq i32 %x, %y
+; CHECK: ret i1 false
+  ret i1 %cmp3
+}
+
+; CHECK: @test6
+define i1 @test6(i32 %x, i32 %y) {
+  %cmp2 = icmp ne i32 %x, %y
+  %cmp = icmp eq i32 %x, %y
+  %cmp3 = icmp eq i32 %x, %y
+  br i1 %cmp, label %same, label %different
+
+same:
+; CHECK: ret i1 false
+  ret i1 %cmp2
+
+different:
+; CHECK: ret i1 false
+  ret i1 %cmp3
+}
+
+; CHECK: @test7
+define i1 @test7(i32 %x, i32 %y) {
+  %cmp = icmp sgt i32 %x, %y
+  br i1 %cmp, label %same, label %different
+
+same:
+  %cmp2 = icmp sle i32 %x, %y
+; CHECK: ret i1 false
+  ret i1 %cmp2
+
+different:
+  %cmp3 = icmp sgt i32 %x, %y
+; CHECK: ret i1 false
+  ret i1 %cmp3
+}
+
+; CHECK: @test8
+define i1 @test8(i32 %x, i32 %y) {
+  %cmp2 = icmp sle i32 %x, %y
+  %cmp = icmp sgt i32 %x, %y
+  %cmp3 = icmp sgt i32 %x, %y
+  br i1 %cmp, label %same, label %different
+
+same:
+; CHECK: ret i1 false
+  ret i1 %cmp2
+
+different:
+; CHECK: ret i1 false
+  ret i1 %cmp3
+}
+
+; PR1768
+; CHECK: @test9
+define i32 @test9(i32 %i, i32 %j) {
+  %cmp = icmp eq i32 %i, %j
+  br i1 %cmp, label %cond_true, label %ret
+
+cond_true:
+  %diff = sub i32 %i, %j
+  ret i32 %diff
+; CHECK: ret i32 0
+
+ret:
+  ret i32 5
+; CHECK: ret i32 5
+}
+
+; PR1768
+; CHECK: @test10
+define i32 @test10(i32 %j, i32 %i) {
+  %cmp = icmp eq i32 %i, %j
+  br i1 %cmp, label %cond_true, label %ret
+
+cond_true:
+  %diff = sub i32 %i, %j
+  ret i32 %diff
+; CHECK: ret i32 0
+
+ret:
+  ret i32 5
+; CHECK: ret i32 5
+}
+
+declare i32 @yogibar()
+
+; CHECK: @test11
+define i32 @test11(i32 %x) {
+  %v0 = call i32 @yogibar()
+  %v1 = call i32 @yogibar()
+  %cmp = icmp eq i32 %v0, %v1
+  br i1 %cmp, label %cond_true, label %next
+
+cond_true:
+  ret i32 %v1
+; CHECK: ret i32 %v0
+
+next:
+  %cmp2 = icmp eq i32 %x, %v0
+  br i1 %cmp2, label %cond_true2, label %next2
+
+cond_true2:
+  ret i32 %v0
+; CHECK: ret i32 %x
+
+next2:
+  ret i32 0
+}
+
+; CHECK: @test12
+define i32 @test12(i32 %x) {
+  %cmp = icmp eq i32 %x, 0
+  br i1 %cmp, label %cond_true, label %cond_false
+
+cond_true:
+  br label %ret
+
+cond_false:
+  br label %ret
+
+ret:
+  %res = phi i32 [ %x, %cond_true ], [ %x, %cond_false ]
+; CHECK: %res = phi i32 [ 0, %cond_true ], [ %x, %cond_false ]
+  ret i32 %res
+}