1 files changed, 67 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/SystemZ/fpc-intrinsics.ll b/llvm/test/CodeGen/SystemZ/fpc-intrinsics.ll
new file mode 100644
index 00000000000..fd8064b18fc
--- /dev/null
+++ b/llvm/test/CodeGen/SystemZ/fpc-intrinsics.ll
@@ -0,0 +1,67 @@
+; Test floating-point control register intrinsics.
+;
+; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
+
+declare void @llvm.s390.sfpc(i32)
+declare i32 @llvm.s390.efpc()
+
+; SFPC.
+define void @test_sfpc(i32 %fpc) {
+; CHECK-LABEL: test_sfpc:
+; CHECK: sfpc %r2
+; CHECK: br %r14
+  call void @llvm.s390.sfpc(i32 %fpc)
+  ret void
+}
+
+; EFPC.
+define i32 @test_efpc() {
+; CHECK-LABEL: test_efpc:
+; CHECK: efpc %r2
+; CHECK: br %r14
+  %res = call i32 @llvm.s390.efpc()
+  ret i32 %res
+}
+
+; LFPC.
+define void @test_lfpc1(i32 *%ptr) {
+; CHECK-LABEL: test_lfpc1:
+; CHECK: lfpc 0(%r2)
+; CHECK: br %r14
+  %fpc = load i32, i32 *%ptr
+  call void @llvm.s390.sfpc(i32 %fpc)
+  ret void
+}
+
+; LFPC with offset.
+define void @test_lfpc2(i32 *%ptr) {
+; CHECK-LABEL: test_lfpc2:
+; CHECK: lfpc 4092(%r2)
+; CHECK: br %r14
+  %ptr1 = getelementptr i32, i32 *%ptr, i32 1023
+  %fpc = load i32, i32 *%ptr1
+  call void @llvm.s390.sfpc(i32 %fpc)
+  ret void
+}
+
+; STFPC.
+define void @test_stfpc1(i32 *%ptr) {
+; CHECK-LABEL: test_stfpc1:
+; CHECK: stfpc 0(%r2)
+; CHECK: br %r14
+  %fpc = call i32 @llvm.s390.efpc()
+  store i32 %fpc, i32 *%ptr
+  ret void
+}
+
+; STFPC with offset.
+define void @test_stfpc2(i32 *%ptr) {
+; CHECK-LABEL: test_stfpc2:
+; CHECK: stfpc 4092(%r2)
+; CHECK: br %r14
+  %fpc = call i32 @llvm.s390.efpc()
+  %ptr1 = getelementptr i32, i32 *%ptr, i32 1023
+  store i32 %fpc, i32 *%ptr1
+  ret void
+}
+