llvm/test/CodeGen/AMDGPU/fast-unaligned-load-store.global.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=hawaii -mattr=-unaligned-access-mode < %s | FileCheck --check-prefix=GFX7-ALIGNED %s
; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=hawaii -mattr=+unaligned-access-mode < %s | FileCheck --check-prefix=GFX7-UNALIGNED %s
; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -mattr=+unaligned-access-mode < %s | FileCheck --check-prefix=GFX9 %s
; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1010 -mattr=+unaligned-access-mode < %s | FileCheck --check-prefix=GFX10 %s
; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1100 -mattr=+unaligned-access-mode < %s | FileCheck --check-prefix=GFX11 %s
; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1200 -mattr=+unaligned-access-mode < %s | FileCheck --check-prefix=GFX12 %s

; Should not merge this to a dword load
define i32 @global_load_2xi16_align2(ptr addrspace(1) %p) #0 {
; GFX7-ALIGNED-LABEL: global_load_2xi16_align2:
; GFX7-ALIGNED:       ; %bb.0:
; GFX7-ALIGNED-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX7-ALIGNED-NEXT:    v_add_i32_e32 v2, vcc, 2, v0
; GFX7-ALIGNED-NEXT:    v_addc_u32_e32 v3, vcc, 0, v1, vcc
; GFX7-ALIGNED-NEXT:    flat_load_ushort v2, v[2:3]
; GFX7-ALIGNED-NEXT:    flat_load_ushort v0, v[0:1]
; GFX7-ALIGNED-NEXT:    s_waitcnt vmcnt(1)
; GFX7-ALIGNED-NEXT:    v_lshlrev_b32_e32 v1, 16, v2
; GFX7-ALIGNED-NEXT:    s_waitcnt vmcnt(0)
; GFX7-ALIGNED-NEXT:    v_or_b32_e32 v0, v0, v1
; GFX7-ALIGNED-NEXT:    s_setpc_b64 s[30:31]
;
; GFX7-UNALIGNED-LABEL: global_load_2xi16_align2:
; GFX7-UNALIGNED:       ; %bb.0:
; GFX7-UNALIGNED-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX7-UNALIGNED-NEXT:    flat_load_dword v0, v[0:1]
; GFX7-UNALIGNED-NEXT:    s_waitcnt vmcnt(0)
; GFX7-UNALIGNED-NEXT:    s_setpc_b64 s[30:31]
;
; GFX9-LABEL: global_load_2xi16_align2:
; GFX9:       ; %bb.0:
; GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT:    global_load_dword v0, v[0:1], off
; GFX9-NEXT:    s_waitcnt vmcnt(0)
; GFX9-NEXT:    s_setpc_b64 s[30:31]
;
; GFX10-LABEL: global_load_2xi16_align2:
; GFX10:       ; %bb.0:
; GFX10-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX10-NEXT:    global_load_dword v0, v[0:1], off
; GFX10-NEXT:    s_waitcnt vmcnt(0)
; GFX10-NEXT:    s_setpc_b64 s[30:31]
;
; GFX11-LABEL: global_load_2xi16_align2:
; GFX11:       ; %bb.0:
; GFX11-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX11-NEXT:    global_load_b32 v0, v[0:1], off
; GFX11-NEXT:    s_waitcnt vmcnt(0)
; GFX11-NEXT:    s_setpc_b64 s[30:31]
;
; GFX12-LABEL: global_load_2xi16_align2:
; GFX12:       ; %bb.0:
; GFX12-NEXT:    s_wait_loadcnt_dscnt 0x0
; GFX12-NEXT:    s_wait_expcnt 0x0
; GFX12-NEXT:    s_wait_samplecnt 0x0
; GFX12-NEXT:    s_wait_bvhcnt 0x0
; GFX12-NEXT:    s_wait_kmcnt 0x0
; GFX12-NEXT:    global_load_b32 v0, v[0:1], off
; GFX12-NEXT:    s_wait_loadcnt 0x0
; GFX12-NEXT:    s_setpc_b64 s[30:31]
  %gep.p = getelementptr i16, ptr addrspace(1) %p, i64 1
  %p.0 = load i16, ptr addrspace(1) %p, align 2
  %p.1 = load i16, ptr addrspace(1) %gep.p, align 2
  %zext.0 = zext i16 %p.0 to i32
  %zext.1 = zext i16 %p.1 to i32
  %shl.1 = shl i32 %zext.1, 16
  %or = or i32 %zext.0, %shl.1
  ret i32 %or
}

; Should not merge this to a dword store
define amdgpu_kernel void @global_store_2xi16_align2(ptr addrspace(1) %p, ptr addrspace(1) %r) #0 {
; GFX7-ALIGNED-LABEL: global_store_2xi16_align2:
; GFX7-ALIGNED:       ; %bb.0:
; GFX7-ALIGNED-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x2
; GFX7-ALIGNED-NEXT:    v_mov_b32_e32 v2, 1
; GFX7-ALIGNED-NEXT:    s_waitcnt lgkmcnt(0)
; GFX7-ALIGNED-NEXT:    v_mov_b32_e32 v0, s0
; GFX7-ALIGNED-NEXT:    s_add_u32 s2, s0, 2
; GFX7-ALIGNED-NEXT:    v_mov_b32_e32 v1, s1
; GFX7-ALIGNED-NEXT:    s_addc_u32 s3, s1, 0
; GFX7-ALIGNED-NEXT:    flat_store_short v[0:1], v2
; GFX7-ALIGNED-NEXT:    v_mov_b32_e32 v0, s2
; GFX7-ALIGNED-NEXT:    v_mov_b32_e32 v2, 2
; GFX7-ALIGNED-NEXT:    v_mov_b32_e32 v1, s3
; GFX7-ALIGNED-NEXT:    flat_store_short v[0:1], v2
; GFX7-ALIGNED-NEXT:    s_endpgm
;
; GFX7-UNALIGNED-LABEL: global_store_2xi16_align2:
; GFX7-UNALIGNED:       ; %bb.0:
; GFX7-UNALIGNED-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x2
; GFX7-UNALIGNED-NEXT:    v_mov_b32_e32 v2, 0x20001
; GFX7-UNALIGNED-NEXT:    s_waitcnt lgkmcnt(0)
; GFX7-UNALIGNED-NEXT:    v_mov_b32_e32 v0, s0
; GFX7-UNALIGNED-NEXT:    v_mov_b32_e32 v1, s1
; GFX7-UNALIGNED-NEXT:    flat_store_dword v[0:1], v2
; GFX7-UNALIGNED-NEXT:    s_endpgm
;
; GFX9-LABEL: global_store_2xi16_align2:
; GFX9:       ; %bb.0:
; GFX9-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
; GFX9-NEXT:    v_mov_b32_e32 v0, 0
; GFX9-NEXT:    v_mov_b32_e32 v1, 0x20001
; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
; GFX9-NEXT:    global_store_dword v0, v1, s[0:1]
; GFX9-NEXT:    s_endpgm
;
; GFX10-LABEL: global_store_2xi16_align2:
; GFX10:       ; %bb.0:
; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
; GFX10-NEXT:    v_mov_b32_e32 v0, 0
; GFX10-NEXT:    v_mov_b32_e32 v1, 0x20001
; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
; GFX10-NEXT:    global_store_dword v0, v1, s[0:1]
; GFX10-NEXT:    s_endpgm
;
; GFX11-LABEL: global_store_2xi16_align2:
; GFX11:       ; %bb.0:
; GFX11-NEXT:    s_load_b64 s[0:1], s[0:1], 0x8
; GFX11-NEXT:    v_dual_mov_b32 v0, 0 :: v_dual_mov_b32 v1, 0x20001
; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
; GFX11-NEXT:    global_store_b32 v0, v1, s[0:1]
; GFX11-NEXT:    s_nop 0
; GFX11-NEXT:    s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
; GFX11-NEXT:    s_endpgm
;
; GFX12-LABEL: global_store_2xi16_align2:
; GFX12:       ; %bb.0:
; GFX12-NEXT:    s_load_b64 s[0:1], s[0:1], 0x8
; GFX12-NEXT:    v_dual_mov_b32 v0, 0 :: v_dual_mov_b32 v1, 0x20001
; GFX12-NEXT:    s_wait_kmcnt 0x0
; GFX12-NEXT:    global_store_b32 v0, v1, s[0:1]
; GFX12-NEXT:    s_nop 0
; GFX12-NEXT:    s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
; GFX12-NEXT:    s_endpgm
  %gep.r = getelementptr i16, ptr addrspace(1) %r, i64 1
  store i16 1, ptr addrspace(1) %r, align 2
  store i16 2, ptr addrspace(1) %gep.r, align 2
  ret void
}

; Should produce align 1 dword when legal
define i32 @global_load_2xi16_align1(ptr addrspace(1) %p) #0 {
; GFX7-ALIGNED-LABEL: global_load_2xi16_align1:
; GFX7-ALIGNED:       ; %bb.0:
; GFX7-ALIGNED-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX7-ALIGNED-NEXT:    v_add_i32_e32 v2, vcc, 2, v0
; GFX7-ALIGNED-NEXT:    v_addc_u32_e32 v3, vcc, 0, v1, vcc
; GFX7-ALIGNED-NEXT:    v_add_i32_e32 v4, vcc, 1, v0
; GFX7-ALIGNED-NEXT:    v_addc_u32_e32 v5, vcc, 0, v1, vcc
; GFX7-ALIGNED-NEXT:    v_add_i32_e32 v6, vcc, 3, v0
; GFX7-ALIGNED-NEXT:    v_addc_u32_e32 v7, vcc, 0, v1, vcc
; GFX7-ALIGNED-NEXT:    flat_load_ubyte v6, v[6:7]
; GFX7-ALIGNED-NEXT:    flat_load_ubyte v4, v[4:5]
; GFX7-ALIGNED-NEXT:    flat_load_ubyte v2, v[2:3]
; GFX7-ALIGNED-NEXT:    flat_load_ubyte v0, v[0:1]
; GFX7-ALIGNED-NEXT:    s_waitcnt vmcnt(3)
; GFX7-ALIGNED-NEXT:    v_lshlrev_b32_e32 v3, 24, v6
; GFX7-ALIGNED-NEXT:    s_waitcnt vmcnt(2)
; GFX7-ALIGNED-NEXT:    v_lshlrev_b32_e32 v1, 8, v4
; GFX7-ALIGNED-NEXT:    s_waitcnt vmcnt(1)
; GFX7-ALIGNED-NEXT:    v_lshlrev_b32_e32 v2, 16, v2
; GFX7-ALIGNED-NEXT:    s_waitcnt vmcnt(0)
; GFX7-ALIGNED-NEXT:    v_or_b32_e32 v0, v1, v0
; GFX7-ALIGNED-NEXT:    v_or_b32_e32 v1, v3, v2
; GFX7-ALIGNED-NEXT:    v_or_b32_e32 v0, v0, v1
; GFX7-ALIGNED-NEXT:    s_setpc_b64 s[30:31]
;
; GFX7-UNALIGNED-LABEL: global_load_2xi16_align1:
; GFX7-UNALIGNED:       ; %bb.0:
; GFX7-UNALIGNED-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX7-UNALIGNED-NEXT:    flat_load_dword v0, v[0:1]
; GFX7-UNALIGNED-NEXT:    s_waitcnt vmcnt(0)
; GFX7-UNALIGNED-NEXT:    s_setpc_b64 s[30:31]
;
; GFX9-LABEL: global_load_2xi16_align1:
; GFX9:       ; %bb.0:
; GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT:    global_load_dword v0, v[0:1], off
; GFX9-NEXT:    s_waitcnt vmcnt(0)
; GFX9-NEXT:    s_setpc_b64 s[30:31]
;
; GFX10-LABEL: global_load_2xi16_align1:
; GFX10:       ; %bb.0:
; GFX10-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX10-NEXT:    global_load_dword v0, v[0:1], off
; GFX10-NEXT:    s_waitcnt vmcnt(0)
; GFX10-NEXT:    s_setpc_b64 s[30:31]
;
; GFX11-LABEL: global_load_2xi16_align1:
; GFX11:       ; %bb.0:
; GFX11-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX11-NEXT:    global_load_b32 v0, v[0:1], off
; GFX11-NEXT:    s_waitcnt vmcnt(0)
; GFX11-NEXT:    s_setpc_b64 s[30:31]
;
; GFX12-LABEL: global_load_2xi16_align1:
; GFX12:       ; %bb.0:
; GFX12-NEXT:    s_wait_loadcnt_dscnt 0x0
; GFX12-NEXT:    s_wait_expcnt 0x0
; GFX12-NEXT:    s_wait_samplecnt 0x0
; GFX12-NEXT:    s_wait_bvhcnt 0x0
; GFX12-NEXT:    s_wait_kmcnt 0x0
; GFX12-NEXT:    global_load_b32 v0, v[0:1], off
; GFX12-NEXT:    s_wait_loadcnt 0x0
; GFX12-NEXT:    s_setpc_b64 s[30:31]
  %gep.p = getelementptr i16, ptr addrspace(1) %p, i64 1
  %p.0 = load i16, ptr addrspace(1) %p, align 1
  %p.1 = load i16, ptr addrspace(1) %gep.p, align 1
  %zext.0 = zext i16 %p.0 to i32
  %zext.1 = zext i16 %p.1 to i32
  %shl.1 = shl i32 %zext.1, 16
  %or = or i32 %zext.0, %shl.1
  ret i32 %or
}

; Should produce align 1 dword when legal
define amdgpu_kernel void @global_store_2xi16_align1(ptr addrspace(1) %p, ptr addrspace(1) %r) #0 {
; GFX7-ALIGNED-LABEL: global_store_2xi16_align1:
; GFX7-ALIGNED:       ; %bb.0:
; GFX7-ALIGNED-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x2
; GFX7-ALIGNED-NEXT:    v_mov_b32_e32 v2, 1
; GFX7-ALIGNED-NEXT:    v_mov_b32_e32 v3, 0
; GFX7-ALIGNED-NEXT:    s_waitcnt lgkmcnt(0)
; GFX7-ALIGNED-NEXT:    s_add_u32 s2, s0, 2
; GFX7-ALIGNED-NEXT:    v_mov_b32_e32 v0, s0
; GFX7-ALIGNED-NEXT:    s_addc_u32 s3, s1, 0
; GFX7-ALIGNED-NEXT:    v_mov_b32_e32 v1, s1
; GFX7-ALIGNED-NEXT:    s_add_u32 s4, s0, 1
; GFX7-ALIGNED-NEXT:    flat_store_byte v[0:1], v2
; GFX7-ALIGNED-NEXT:    s_addc_u32 s5, s1, 0
; GFX7-ALIGNED-NEXT:    v_mov_b32_e32 v0, s4
; GFX7-ALIGNED-NEXT:    v_mov_b32_e32 v1, s5
; GFX7-ALIGNED-NEXT:    s_add_u32 s0, s0, 3
; GFX7-ALIGNED-NEXT:    flat_store_byte v[0:1], v3
; GFX7-ALIGNED-NEXT:    s_addc_u32 s1, s1, 0
; GFX7-ALIGNED-NEXT:    v_mov_b32_e32 v0, s0
; GFX7-ALIGNED-NEXT:    v_mov_b32_e32 v1, s1
; GFX7-ALIGNED-NEXT:    flat_store_byte v[0:1], v3
; GFX7-ALIGNED-NEXT:    v_mov_b32_e32 v0, s2
; GFX7-ALIGNED-NEXT:    v_mov_b32_e32 v2, 2
; GFX7-ALIGNED-NEXT:    v_mov_b32_e32 v1, s3
; GFX7-ALIGNED-NEXT:    flat_store_byte v[0:1], v2
; GFX7-ALIGNED-NEXT:    s_endpgm
;
; GFX7-UNALIGNED-LABEL: global_store_2xi16_align1:
; GFX7-UNALIGNED:       ; %bb.0:
; GFX7-UNALIGNED-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x2
; GFX7-UNALIGNED-NEXT:    v_mov_b32_e32 v2, 0x20001
; GFX7-UNALIGNED-NEXT:    s_waitcnt lgkmcnt(0)
; GFX7-UNALIGNED-NEXT:    v_mov_b32_e32 v0, s0
; GFX7-UNALIGNED-NEXT:    v_mov_b32_e32 v1, s1
; GFX7-UNALIGNED-NEXT:    flat_store_dword v[0:1], v2
; GFX7-UNALIGNED-NEXT:    s_endpgm
;
; GFX9-LABEL: global_store_2xi16_align1:
; GFX9:       ; %bb.0:
; GFX9-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
; GFX9-NEXT:    v_mov_b32_e32 v0, 0
; GFX9-NEXT:    v_mov_b32_e32 v1, 0x20001
; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
; GFX9-NEXT:    global_store_dword v0, v1, s[0:1]
; GFX9-NEXT:    s_endpgm
;
; GFX10-LABEL: global_store_2xi16_align1:
; GFX10:       ; %bb.0:
; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
; GFX10-NEXT:    v_mov_b32_e32 v0, 0
; GFX10-NEXT:    v_mov_b32_e32 v1, 0x20001
; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
; GFX10-NEXT:    global_store_dword v0, v1, s[0:1]
; GFX10-NEXT:    s_endpgm
;
; GFX11-LABEL: global_store_2xi16_align1:
; GFX11:       ; %bb.0:
; GFX11-NEXT:    s_load_b64 s[0:1], s[0:1], 0x8
; GFX11-NEXT:    v_dual_mov_b32 v0, 0 :: v_dual_mov_b32 v1, 0x20001
; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
; GFX11-NEXT:    global_store_b32 v0, v1, s[0:1]
; GFX11-NEXT:    s_nop 0
; GFX11-NEXT:    s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
; GFX11-NEXT:    s_endpgm
;
; GFX12-LABEL: global_store_2xi16_align1:
; GFX12:       ; %bb.0:
; GFX12-NEXT:    s_load_b64 s[0:1], s[0:1], 0x8
; GFX12-NEXT:    v_dual_mov_b32 v0, 0 :: v_dual_mov_b32 v1, 0x20001
; GFX12-NEXT:    s_wait_kmcnt 0x0
; GFX12-NEXT:    global_store_b32 v0, v1, s[0:1]
; GFX12-NEXT:    s_nop 0
; GFX12-NEXT:    s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
; GFX12-NEXT:    s_endpgm
  %gep.r = getelementptr i16, ptr addrspace(1) %r, i64 1
  store i16 1, ptr addrspace(1) %r, align 1
  store i16 2, ptr addrspace(1) %gep.r, align 1
  ret void
}

; Should merge this to a dword load
define i32 @global_load_2xi16_align4(ptr addrspace(1) %p) #0 {
; GFX7-ALIGNED-LABEL: global_load_2xi16_align4:
; GFX7-ALIGNED:       ; %bb.0:
; GFX7-ALIGNED-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX7-ALIGNED-NEXT:    flat_load_dword v0, v[0:1]
; GFX7-ALIGNED-NEXT:    s_waitcnt vmcnt(0)
; GFX7-ALIGNED-NEXT:    s_setpc_b64 s[30:31]
;
; GFX7-UNALIGNED-LABEL: global_load_2xi16_align4:
; GFX7-UNALIGNED:       ; %bb.0:
; GFX7-UNALIGNED-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX7-UNALIGNED-NEXT:    flat_load_dword v0, v[0:1]
; GFX7-UNALIGNED-NEXT:    s_waitcnt vmcnt(0)
; GFX7-UNALIGNED-NEXT:    s_setpc_b64 s[30:31]
;
; GFX9-LABEL: global_load_2xi16_align4:
; GFX9:       ; %bb.0:
; GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT:    global_load_dword v0, v[0:1], off
; GFX9-NEXT:    s_waitcnt vmcnt(0)
; GFX9-NEXT:    s_setpc_b64 s[30:31]
;
; GFX10-LABEL: global_load_2xi16_align4:
; GFX10:       ; %bb.0:
; GFX10-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX10-NEXT:    global_load_dword v0, v[0:1], off
; GFX10-NEXT:    s_waitcnt vmcnt(0)
; GFX10-NEXT:    s_setpc_b64 s[30:31]
;
; GFX11-LABEL: global_load_2xi16_align4:
; GFX11:       ; %bb.0:
; GFX11-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX11-NEXT:    global_load_b32 v0, v[0:1], off
; GFX11-NEXT:    s_waitcnt vmcnt(0)
; GFX11-NEXT:    s_setpc_b64 s[30:31]
;
; GFX12-LABEL: global_load_2xi16_align4:
; GFX12:       ; %bb.0:
; GFX12-NEXT:    s_wait_loadcnt_dscnt 0x0
; GFX12-NEXT:    s_wait_expcnt 0x0
; GFX12-NEXT:    s_wait_samplecnt 0x0
; GFX12-NEXT:    s_wait_bvhcnt 0x0
; GFX12-NEXT:    s_wait_kmcnt 0x0
; GFX12-NEXT:    global_load_b32 v0, v[0:1], off
; GFX12-NEXT:    s_wait_loadcnt 0x0
; GFX12-NEXT:    s_setpc_b64 s[30:31]
  %gep.p = getelementptr i16, ptr addrspace(1) %p, i64 1
  %p.0 = load i16, ptr addrspace(1) %p, align 4
  %p.1 = load i16, ptr addrspace(1) %gep.p, align 2
  %zext.0 = zext i16 %p.0 to i32
  %zext.1 = zext i16 %p.1 to i32
  %shl.1 = shl i32 %zext.1, 16
  %or = or i32 %zext.0, %shl.1
  ret i32 %or
}

; Should merge this to a dword store
define amdgpu_kernel void @global_store_2xi16_align4(ptr addrspace(1) %p, ptr addrspace(1) %r) #0 {
; GFX7-ALIGNED-LABEL: global_store_2xi16_align4:
; GFX7-ALIGNED:       ; %bb.0:
; GFX7-ALIGNED-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x2
; GFX7-ALIGNED-NEXT:    v_mov_b32_e32 v2, 0x20001
; GFX7-ALIGNED-NEXT:    s_waitcnt lgkmcnt(0)
; GFX7-ALIGNED-NEXT:    v_mov_b32_e32 v0, s0
; GFX7-ALIGNED-NEXT:    v_mov_b32_e32 v1, s1
; GFX7-ALIGNED-NEXT:    flat_store_dword v[0:1], v2
; GFX7-ALIGNED-NEXT:    s_endpgm
;
; GFX7-UNALIGNED-LABEL: global_store_2xi16_align4:
; GFX7-UNALIGNED:       ; %bb.0:
; GFX7-UNALIGNED-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x2
; GFX7-UNALIGNED-NEXT:    v_mov_b32_e32 v2, 0x20001
; GFX7-UNALIGNED-NEXT:    s_waitcnt lgkmcnt(0)
; GFX7-UNALIGNED-NEXT:    v_mov_b32_e32 v0, s0
; GFX7-UNALIGNED-NEXT:    v_mov_b32_e32 v1, s1
; GFX7-UNALIGNED-NEXT:    flat_store_dword v[0:1], v2
; GFX7-UNALIGNED-NEXT:    s_endpgm
;
; GFX9-LABEL: global_store_2xi16_align4:
; GFX9:       ; %bb.0:
; GFX9-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
; GFX9-NEXT:    v_mov_b32_e32 v0, 0
; GFX9-NEXT:    v_mov_b32_e32 v1, 0x20001
; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
; GFX9-NEXT:    global_store_dword v0, v1, s[0:1]
; GFX9-NEXT:    s_endpgm
;
; GFX10-LABEL: global_store_2xi16_align4:
; GFX10:       ; %bb.0:
; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
; GFX10-NEXT:    v_mov_b32_e32 v0, 0
; GFX10-NEXT:    v_mov_b32_e32 v1, 0x20001
; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
; GFX10-NEXT:    global_store_dword v0, v1, s[0:1]
; GFX10-NEXT:    s_endpgm
;
; GFX11-LABEL: global_store_2xi16_align4:
; GFX11:       ; %bb.0:
; GFX11-NEXT:    s_load_b64 s[0:1], s[0:1], 0x8
; GFX11-NEXT:    v_dual_mov_b32 v0, 0 :: v_dual_mov_b32 v1, 0x20001
; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
; GFX11-NEXT:    global_store_b32 v0, v1, s[0:1]
; GFX11-NEXT:    s_nop 0
; GFX11-NEXT:    s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
; GFX11-NEXT:    s_endpgm
;
; GFX12-LABEL: global_store_2xi16_align4:
; GFX12:       ; %bb.0:
; GFX12-NEXT:    s_load_b64 s[0:1], s[0:1], 0x8
; GFX12-NEXT:    v_dual_mov_b32 v0, 0 :: v_dual_mov_b32 v1, 0x20001
; GFX12-NEXT:    s_wait_kmcnt 0x0
; GFX12-NEXT:    global_store_b32 v0, v1, s[0:1]
; GFX12-NEXT:    s_nop 0
; GFX12-NEXT:    s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
; GFX12-NEXT:    s_endpgm
  %gep.r = getelementptr i16, ptr addrspace(1) %r, i64 1
  store i16 1, ptr addrspace(1) %r, align 4
  store i16 2, ptr addrspace(1) %gep.r, align 2
  ret void
}