1 files changed, 46 insertions, 0 deletions
diff --git a/test/CodeGen/NVPTX/tex-read-cuda.ll b/test/CodeGen/NVPTX/tex-read-cuda.ll
new file mode 100644
index 000000000000..ee0cefa919b1
--- /dev/null
+++ b/test/CodeGen/NVPTX/tex-read-cuda.ll
@@ -0,0 +1,46 @@
+; RUN: llc < %s -march=nvptx -mcpu=sm_20 | FileCheck %s --check-prefix=SM20
+; RUN: llc < %s -march=nvptx -mcpu=sm_30 | FileCheck %s --check-prefix=SM30
+
+
+target triple = "nvptx-unknown-cuda"
+
+declare { float, float, float, float } @llvm.nvvm.tex.unified.1d.v4f32.s32(i64, i32)
+declare i64 @llvm.nvvm.texsurf.handle.internal.p1i64(i64 addrspace(1)*)
+
+; SM20-LABEL: .entry foo
+; SM30-LABEL: .entry foo
+define void @foo(i64 %img, float* %red, i32 %idx) {
+; SM20: ld.param.u64    %rd[[TEXREG:[0-9]+]], [foo_param_0];
+; SM20: tex.1d.v4.f32.s32 {%f[[RED:[0-9]+]], %f[[GREEN:[0-9]+]], %f[[BLUE:[0-9]+]], %f[[ALPHA:[0-9]+]]}, [%rd[[TEXREG]], {%r{{[0-9]+}}}]
+; SM30: ld.param.u64    %rd[[TEXREG:[0-9]+]], [foo_param_0];
+; SM30: tex.1d.v4.f32.s32 {%f[[RED:[0-9]+]], %f[[GREEN:[0-9]+]], %f[[BLUE:[0-9]+]], %f[[ALPHA:[0-9]+]]}, [%rd[[TEXREG]], {%r{{[0-9]+}}}]
+  %val = tail call { float, float, float, float } @llvm.nvvm.tex.unified.1d.v4f32.s32(i64 %img, i32 %idx)
+  %ret = extractvalue { float, float, float, float } %val, 0
+; SM20: st.f32 [%r{{[0-9]+}}], %f[[RED]]
+; SM30: st.f32 [%r{{[0-9]+}}], %f[[RED]]
+  store float %ret, float* %red
+  ret void
+}
+
+
+@tex0 = internal addrspace(1) global i64 0, align 8
+
+; SM20-LABEL: .entry bar
+; SM30-LABEL: .entry bar
+define void @bar(float* %red, i32 %idx) {
+; SM30: mov.u64 %rd[[TEXHANDLE:[0-9]+]], tex0 
+  %texHandle = tail call i64 @llvm.nvvm.texsurf.handle.internal.p1i64(i64 addrspace(1)* @tex0)
+; SM20: tex.1d.v4.f32.s32 {%f[[RED:[0-9]+]], %f[[GREEN:[0-9]+]], %f[[BLUE:[0-9]+]], %f[[ALPHA:[0-9]+]]}, [tex0, {%r{{[0-9]+}}}]
+; SM30: tex.1d.v4.f32.s32 {%f[[RED:[0-9]+]], %f[[GREEN:[0-9]+]], %f[[BLUE:[0-9]+]], %f[[ALPHA:[0-9]+]]}, [%rd[[TEXHANDLE]], {%r{{[0-9]+}}}]
+  %val = tail call { float, float, float, float } @llvm.nvvm.tex.unified.1d.v4f32.s32(i64 %texHandle, i32 %idx)
+  %ret = extractvalue { float, float, float, float } %val, 0
+; SM20: st.f32 [%r{{[0-9]+}}], %f[[RED]]
+; SM30: st.f32 [%r{{[0-9]+}}], %f[[RED]]
+  store float %ret, float* %red
+  ret void
+}
+
+!nvvm.annotations = !{!1, !2, !3}
+!1 = metadata !{void (i64, float*, i32)* @foo, metadata !"kernel", i32 1}
+!2 = metadata !{void (float*, i32)* @bar, metadata !"kernel", i32 1}
+!3 = metadata !{i64 addrspace(1)* @tex0, metadata !"texture", i32 1}