llvm/test/CodeGen/NVPTX/surf-read-cuda.ll

; 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 i32 @llvm.nvvm.suld.1d.i32.trap(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[[SURFREG:[0-9]+]], [foo_param_0];
; SM20: suld.b.1d.b32.trap {%r[[RED:[0-9]+]]}, [%rd[[SURFREG]], {%r{{[0-9]+}}}]
; SM30: ld.param.u64    %rd[[SURFREG:[0-9]+]], [foo_param_0];
; SM30: suld.b.1d.b32.trap {%r[[RED:[0-9]+]]}, [%rd[[SURFREG]], {%r{{[0-9]+}}}]
  %val = tail call i32 @llvm.nvvm.suld.1d.i32.trap(i64 %img, i32 %idx)
; SM20: cvt.rn.f32.s32 %f[[REDF:[0-9]+]], %r[[RED]]
; SM30: cvt.rn.f32.s32 %f[[REDF:[0-9]+]], %r[[RED]]
  %ret = sitofp i32 %val to float
; SM20: st.global.f32 [%r{{[0-9]+}}], %f[[REDF]]
; SM30: st.global.f32 [%r{{[0-9]+}}], %f[[REDF]]
  store float %ret, float* %red
  ret void
}

@surf0 = 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[[SURFHANDLE:[0-9]+]], surf0
  %surfHandle = tail call i64 @llvm.nvvm.texsurf.handle.internal.p1i64(i64 addrspace(1)* @surf0)
; SM20: suld.b.1d.b32.trap {%r[[RED:[0-9]+]]}, [surf0, {%r{{[0-9]+}}}]
; SM30: suld.b.1d.b32.trap {%r[[RED:[0-9]+]]}, [%rd[[SURFHANDLE]], {%r{{[0-9]+}}}]
  %val = tail call i32 @llvm.nvvm.suld.1d.i32.trap(i64 %surfHandle, i32 %idx)
; SM20: cvt.rn.f32.s32 %f[[REDF:[0-9]+]], %r[[RED]]
; SM30: cvt.rn.f32.s32 %f[[REDF:[0-9]+]], %r[[RED]]
  %ret = sitofp i32 %val to float
; SM20: st.global.f32 [%r{{[0-9]+}}], %f[[REDF]]
; SM30: st.global.f32 [%r{{[0-9]+}}], %f[[REDF]]
  store float %ret, float* %red
  ret void
}




!nvvm.annotations = !{!1, !2, !3}
!1 = !{void (i64, float*, i32)* @foo, !"kernel", i32 1}
!2 = !{void (float*, i32)* @bar, !"kernel", i32 1}
!3 = !{i64 addrspace(1)* @surf0, !"surface", i32 1}