1 files changed, 26 insertions, 0 deletions
diff --git a/test/CodeGen/R600/rsq.ll b/test/CodeGen/R600/rsq.ll
new file mode 100644
index 0000000..87c0570
--- /dev/null
+++ b/test/CodeGen/R600/rsq.ll
@@ -0,0 +1,26 @@
+; RUN: llc -march=r600 -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=SI %s
+
+declare float @llvm.sqrt.f32(float) nounwind readnone
+declare double @llvm.sqrt.f64(double) nounwind readnone
+
+; SI-LABEL: @rsq_f32
+; SI: V_RSQ_F32_e32
+; SI: S_ENDPGM
+define void @rsq_f32(float addrspace(1)* noalias %out, float addrspace(1)* noalias %in) nounwind {
+  %val = load float addrspace(1)* %in, align 4
+  %sqrt = call float @llvm.sqrt.f32(float %val) nounwind readnone
+  %div = fdiv float 1.0, %sqrt
+  store float %div, float addrspace(1)* %out, align 4
+  ret void
+}
+
+; SI-LABEL: @rsq_f64
+; SI: V_RSQ_F64_e32
+; SI: S_ENDPGM
+define void @rsq_f64(double addrspace(1)* noalias %out, double addrspace(1)* noalias %in) nounwind {
+  %val = load double addrspace(1)* %in, align 4
+  %sqrt = call double @llvm.sqrt.f64(double %val) nounwind readnone
+  %div = fdiv double 1.0, %sqrt
+  store double %div, double addrspace(1)* %out, align 4
+  ret void
+}