R600: Fix inconsistency in rsq instructions.

[oota-llvm.git] / test / CodeGen / R600 / llvm.AMDGPU.rsq.ll

diff --git a/test/CodeGen/R600/llvm.AMDGPU.rsq.ll b/test/CodeGen/R600/llvm.AMDGPU.rsq.ll
new file mode 100644 (file)
index 0000000..27cf6b2
--- /dev/null
+++ b/test/CodeGen/R600/llvm.AMDGPU.rsq.ll
@@ -0,0 +1,13 @@
+; RUN: llc -march=r600 -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
+; RUN: llc -march=r600 -mcpu=cypress -verify-machineinstrs < %s | FileCheck -check-prefix=EG -check-prefix=FUNC %s
+
+declare float @llvm.AMDGPU.rsq.f32(float) nounwind readnone
+
+; FUNC-LABEL: @rsq_f32
+; SI: V_RSQ_F32_e32
+; EG: RECIPSQRT_IEEE
+define void @rsq_f32(float addrspace(1)* %out, float %src) nounwind {
+  %rsq = call float @llvm.AMDGPU.rsq.f32(float %src) nounwind readnone
+  store float %rsq, float addrspace(1)* %out, align 4
+  ret void
+}