llvm/test/CodeGen/AMDGPU/tail-call-inreg-arguments.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -verify-machineinstrs < %s | FileCheck %s

declare hidden void @void_func_i32_inreg(i32 inreg)

define void @tail_call_i32_inreg_uniform(i32 inreg %sgpr) {
; CHECK-LABEL: tail_call_i32_inreg_uniform:
; CHECK:       ; %bb.0:
; CHECK-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; CHECK-NEXT:    s_getpc_b64 s[18:19]
; CHECK-NEXT:    s_add_u32 s18, s18, void_func_i32_inreg@rel32@lo+4
; CHECK-NEXT:    s_addc_u32 s19, s19, void_func_i32_inreg@rel32@hi+12
; CHECK-NEXT:    s_mov_b32 s0, s16
; CHECK-NEXT:    s_setpc_b64 s[18:19]
  tail call void @void_func_i32_inreg(i32 inreg %sgpr)
  ret void
}

@constant = external hidden addrspace(4) constant ptr

define void @indirect_tail_call_i32_inreg_uniform(i32 inreg %sgpr) {
; CHECK-LABEL: indirect_tail_call_i32_inreg_uniform:
; CHECK:       ; %bb.0:
; CHECK-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; CHECK-NEXT:    s_getpc_b64 s[18:19]
; CHECK-NEXT:    s_add_u32 s18, s18, constant@rel32@lo+4
; CHECK-NEXT:    s_addc_u32 s19, s19, constant@rel32@hi+12
; CHECK-NEXT:    s_load_dwordx2 s[18:19], s[18:19], 0x0
; CHECK-NEXT:    s_mov_b32 s0, s16
; CHECK-NEXT:    s_waitcnt lgkmcnt(0)
; CHECK-NEXT:    s_setpc_b64 s[18:19]
  %fptr = load ptr, ptr addrspace(4) @constant, align 8
  tail call void %fptr(i32 inreg %sgpr)
  ret void
}

declare void @void_func_i64_inreg(i64 inreg)

define void @tail_call_i64_inreg_uniform(i64 inreg %sgpr) {
; CHECK-LABEL: tail_call_i64_inreg_uniform:
; CHECK:       ; %bb.0:
; CHECK-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; CHECK-NEXT:    s_getpc_b64 s[18:19]
; CHECK-NEXT:    s_add_u32 s18, s18, void_func_i64_inreg@gotpcrel32@lo+4
; CHECK-NEXT:    s_addc_u32 s19, s19, void_func_i64_inreg@gotpcrel32@hi+12
; CHECK-NEXT:    s_load_dwordx2 s[18:19], s[18:19], 0x0
; CHECK-NEXT:    s_mov_b32 s1, s17
; CHECK-NEXT:    s_mov_b32 s0, s16
; CHECK-NEXT:    s_waitcnt lgkmcnt(0)
; CHECK-NEXT:    s_setpc_b64 s[18:19]
  tail call void @void_func_i64_inreg(i64 inreg %sgpr)
  ret void
}

define void @tail_call_i64_inreg_uniform_in_vgpr() {
; CHECK-LABEL: tail_call_i64_inreg_uniform_in_vgpr:
; CHECK:       ; %bb.0:
; CHECK-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; CHECK-NEXT:    v_mov_b32_e32 v0, 0
; CHECK-NEXT:    ds_read_b64 v[0:1], v0
; CHECK-NEXT:    s_getpc_b64 s[16:17]
; CHECK-NEXT:    s_add_u32 s16, s16, void_func_i64_inreg@gotpcrel32@lo+4
; CHECK-NEXT:    s_addc_u32 s17, s17, void_func_i64_inreg@gotpcrel32@hi+12
; CHECK-NEXT:    s_load_dwordx2 s[16:17], s[16:17], 0x0
; CHECK-NEXT:    s_waitcnt lgkmcnt(0)
; CHECK-NEXT:    v_readfirstlane_b32 s0, v0
; CHECK-NEXT:    v_readfirstlane_b32 s1, v1
; CHECK-NEXT:    s_setpc_b64 s[16:17]
  %uniform.vgpr = load i64, ptr addrspace(3) null, align 8
  tail call void @void_func_i64_inreg(i64 inreg %uniform.vgpr)
  ret void
}