1 files changed, 95 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/SystemZ/tdc-01.ll b/llvm/test/CodeGen/SystemZ/tdc-01.ll
new file mode 100644
index 00000000000..052d895b798
--- /dev/null
+++ b/llvm/test/CodeGen/SystemZ/tdc-01.ll
@@ -0,0 +1,95 @@
+; Test the Test Data Class instruction, selected manually via the intrinsic.
+;
+; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
+
+declare i32 @llvm.s390.tdc.f32(float, i64)
+declare i32 @llvm.s390.tdc.f64(double, i64)
+declare i32 @llvm.s390.tdc.f128(fp128, i64)
+
+; Check using as i32 - f32
+define i32 @f1(float %x) {
+; CHECK-LABEL: f1
+; CHECK: tceb %f0, 123
+; CHECK: ipm %r2
+; CHECK: srl %r2, 28
+  %res = call i32 @llvm.s390.tdc.f32(float %x, i64 123)
+  ret i32 %res
+}
+
+; Check using as i32 - f64
+define i32 @f2(double %x) {
+; CHECK-LABEL: f2
+; CHECK: tcdb %f0, 123
+; CHECK: ipm %r2
+; CHECK: srl %r2, 28
+  %res = call i32 @llvm.s390.tdc.f64(double %x, i64 123)
+  ret i32 %res
+}
+
+; Check using as i32 - f128
+define i32 @f3(fp128 %x) {
+; CHECK-LABEL: f3
+; CHECK: ld %f0, 0(%r2)
+; CHECK: ld %f2, 8(%r2)
+; CHECK: tcxb %f0, 123
+; CHECK: ipm %r2
+; CHECK: srl %r2, 28
+  %res = call i32 @llvm.s390.tdc.f128(fp128 %x, i64 123)
+  ret i32 %res
+}
+
+declare void @g()
+
+; Check branch
+define void @f4(float %x) {
+; CHECK-LABEL: f4
+; CHECK: tceb %f0, 123
+; CHECK: jgl g
+; CHECK: br %r14
+  %res = call i32 @llvm.s390.tdc.f32(float %x, i64 123)
+  %cond = icmp ne i32 %res, 0
+  br i1 %cond, label %call, label %exit
+
+call:
+  tail call void @g()
+  br label %exit
+
+exit:
+  ret void
+}
+
+; Check branch negated
+define void @f5(float %x) {
+; CHECK-LABEL: f5
+; CHECK: tceb %f0, 123
+; CHECK: jge g
+; CHECK: br %r14
+  %res = call i32 @llvm.s390.tdc.f32(float %x, i64 123)
+  %cond = icmp eq i32 %res, 0
+  br i1 %cond, label %call, label %exit
+
+call:
+  tail call void @g()
+  br label %exit
+
+exit:
+  ret void
+}
+
+; Check non-const mask
+define void @f6(float %x, i64 %y) {
+; CHECK-LABEL: f6
+; CHECK: tceb %f0, 0(%r2)
+; CHECK: jge g
+; CHECK: br %r14
+  %res = call i32 @llvm.s390.tdc.f32(float %x, i64 %y)
+  %cond = icmp eq i32 %res, 0
+  br i1 %cond, label %call, label %exit
+
+call:
+  tail call void @g()
+  br label %exit
+
+exit:
+  ret void
+}