[ARM] Add LLVM tests for the vcvtr builtins

Follow up of Clang commit r325351; this adds the LLVM tests, which
were also missing.

Differential Revision: https://reviews.llvm.org/D43395

llvm-svn: 325443

diff --git a/llvm/test/CodeGen/ARM/fpvcvtr.ll b/llvm/test/CodeGen/ARM/fpvcvtr.ll
new file mode 100644 (file)
index 0000000..c5df2c4
--- /dev/null
+++ b/llvm/test/CodeGen/ARM/fpvcvtr.ll
@@ -0,0 +1,35 @@
+; RUN: llc -mtriple=arm-eabi -mattr=+vfp2 %s -o - | FileCheck %s --check-prefix=CHECK-VFP
+; RUN: llc -mtriple=thumbv7-eabi -mattr=+vfp2 %s -o - | FileCheck %s --check-prefix=CHECK-VFP
+
+declare float @llvm.arm.vcvtr.f32(float)
+declare float @llvm.arm.vcvtru.f32(float)
+declare float @llvm.arm.vcvtr.f64(double)
+declare float @llvm.arm.vcvtru.f64(double)
+
+define float @test_vcvtrf0(float %f) {
+entry:
+; CHECK-VFP:  vcvtr.s32.f32  s0, s0
+  %vcvtr = tail call float @llvm.arm.vcvtr.f32(float %f)
+  ret float %vcvtr
+}
+
+define float @test_vcvtrf1(float %f) {
+entry:
+; CHECK-VFP:  vcvtr.u32.f32  s0, s0
+  %vcvtr = tail call float @llvm.arm.vcvtru.f32(float %f)
+  ret float %vcvtr
+}
+
+define float @test_vcvtrd0(double %d) {
+entry:
+; CHECK-VFP: vcvtr.s32.f64  s0, d{{.*}}
+  %vcvtr = tail call float @llvm.arm.vcvtr.f64(double %d)
+  ret float %vcvtr
+}
+
+define float @test_vcvtrd1(double %d) {
+entry:
+; CHECK-VFP: vcvtr.u32.f64  s0, d{{.*}}
+  %vcvtr = tail call float @llvm.arm.vcvtru.f64(double %d)
+  ret float %vcvtr
+}