llvm-6502/test/CodeGen/R600/llvm.AMDGPU.umax.ll

; RUN: llc < %s -march=r600 -mcpu=verde -verify-machineinstrs | FileCheck -check-prefix=SI %s

; SI-LABEL: @vector_umax
; SI: V_MAX_U32_e32
define void @vector_umax(i32 %p0, i32 %p1, i32 addrspace(1)* %in) #0 {
main_body:
  %load = load i32 addrspace(1)* %in, align 4
  %max = call i32 @llvm.AMDGPU.umax(i32 %p0, i32 %load)
  %bc = bitcast i32 %max to float
  call void @llvm.SI.export(i32 15, i32 1, i32 1, i32 0, i32 0, float %bc, float %bc, float %bc, float %bc)
  ret void
}

; SI-LABEL: @scalar_umax
; SI: S_MAX_U32
define void @scalar_umax(i32 %p0, i32 %p1) #0 {
entry:
  %max = call i32 @llvm.AMDGPU.umax(i32 %p0, i32 %p1)
  %bc = bitcast i32 %max to float
  call void @llvm.SI.export(i32 15, i32 1, i32 1, i32 0, i32 0, float %bc, float %bc, float %bc, float %bc)
  ret void
}

; SI-LABEL: @trunc_zext_umax
; SI: BUFFER_LOAD_UBYTE [[VREG:v[0-9]+]],
; SI: V_MAX_U32_e32 [[RESULT:v[0-9]+]], 0, [[VREG]]
; SI-NOT: AND
; SI: BUFFER_STORE_SHORT [[RESULT]],
define void @trunc_zext_umax(i16 addrspace(1)* nocapture %out, i8 addrspace(1)* nocapture %src) nounwind {
  %tmp5 = load i8 addrspace(1)* %src, align 1
  %tmp2 = zext i8 %tmp5 to i32
  %tmp3 = tail call i32 @llvm.AMDGPU.umax(i32 %tmp2, i32 0) nounwind readnone
  %tmp4 = trunc i32 %tmp3 to i8
  %tmp6 = zext i8 %tmp4 to i16
  store i16 %tmp6, i16 addrspace(1)* %out, align 2
  ret void
}

; Function Attrs: readnone
declare i32 @llvm.AMDGPU.umax(i32, i32) #1

declare void @llvm.SI.export(i32, i32, i32, i32, i32, float, float, float, float)

attributes #0 = { nounwind }
attributes #1 = { nounwind readnone }

!0 = metadata !{metadata !"const", null, i32 1}