diff --git a/llvm/test/CodeGen/AMDGPU/fadd.f16.ll b/llvm/test/CodeGen/AMDGPU/fadd.f16.ll
--- a/llvm/test/CodeGen/AMDGPU/fadd.f16.ll
+++ b/llvm/test/CodeGen/AMDGPU/fadd.f16.ll
@@ -2,6 +2,7 @@
 ; RUN: llc -march=amdgcn -mcpu=tahiti -verify-machineinstrs -enable-misched=false < %s | FileCheck -check-prefixes=SI %s
 ; RUN: llc -march=amdgcn -mcpu=fiji -mattr=-flat-for-global -verify-machineinstrs -enable-misched=false < %s | FileCheck -check-prefixes=VI %s
 ; RUN: llc -march=amdgcn -mcpu=gfx1100 -mattr=-flat-for-global -verify-machineinstrs -enable-misched=false < %s | FileCheck -check-prefixes=GFX11 %s
+; RUN: llc -march=amdgcn -mcpu=gfx1100 -mattr=-flat-for-global -verify-machineinstrs -enable-misched=false < %s | FileCheck -check-prefixes=GFX11-FAKE16 %s
 
 define amdgpu_kernel void @fadd_f16(
 ; SI-LABEL: fadd_f16:
@@ -78,6 +79,32 @@
 ; GFX11-NEXT:    s_nop 0
 ; GFX11-NEXT:    s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
 ; GFX11-NEXT:    s_endpgm
+;
+; GFX11-FAKE16-LABEL: fadd_f16:
+; GFX11-FAKE16:       ; %bb.0: ; %entry
+; GFX11-FAKE16-NEXT:    s_clause 0x1
+; GFX11-FAKE16-NEXT:    s_load_b128 s[4:7], s[0:1], 0x24
+; GFX11-FAKE16-NEXT:    s_load_b64 s[0:1], s[0:1], 0x34
+; GFX11-FAKE16-NEXT:    s_mov_b32 s11, 0x31016000
+; GFX11-FAKE16-NEXT:    s_mov_b32 s10, -1
+; GFX11-FAKE16-NEXT:    s_mov_b32 s3, s11
+; GFX11-FAKE16-NEXT:    s_mov_b32 s2, s10
+; GFX11-FAKE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX11-FAKE16-NEXT:    s_mov_b32 s8, s4
+; GFX11-FAKE16-NEXT:    s_mov_b32 s9, s5
+; GFX11-FAKE16-NEXT:    s_mov_b32 s4, s6
+; GFX11-FAKE16-NEXT:    s_mov_b32 s5, s7
+; GFX11-FAKE16-NEXT:    s_mov_b32 s6, s10
+; GFX11-FAKE16-NEXT:    s_mov_b32 s7, s11
+; GFX11-FAKE16-NEXT:    buffer_load_u16 v0, off, s[4:7], 0 glc dlc
+; GFX11-FAKE16-NEXT:    s_waitcnt vmcnt(0)
+; GFX11-FAKE16-NEXT:    buffer_load_u16 v1, off, s[0:3], 0 glc dlc
+; GFX11-FAKE16-NEXT:    s_waitcnt vmcnt(0)
+; GFX11-FAKE16-NEXT:    v_add_f16_e32 v0, v0, v1
+; GFX11-FAKE16-NEXT:    buffer_store_b16 v0, off, s[8:11], 0
+; GFX11-FAKE16-NEXT:    s_nop 0
+; GFX11-FAKE16-NEXT:    s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
+; GFX11-FAKE16-NEXT:    s_endpgm
     ptr addrspace(1) %r,
     ptr addrspace(1) %a,
     ptr addrspace(1) %b) {
@@ -147,6 +174,26 @@
 ; GFX11-NEXT:    s_nop 0
 ; GFX11-NEXT:    s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
 ; GFX11-NEXT:    s_endpgm
+;
+; GFX11-FAKE16-LABEL: fadd_f16_imm_a:
+; GFX11-FAKE16:       ; %bb.0: ; %entry
+; GFX11-FAKE16-NEXT:    s_load_b128 s[0:3], s[0:1], 0x24
+; GFX11-FAKE16-NEXT:    s_mov_b32 s7, 0x31016000
+; GFX11-FAKE16-NEXT:    s_mov_b32 s6, -1
+; GFX11-FAKE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX11-FAKE16-NEXT:    s_mov_b32 s4, s0
+; GFX11-FAKE16-NEXT:    s_mov_b32 s5, s1
+; GFX11-FAKE16-NEXT:    s_mov_b32 s0, s2
+; GFX11-FAKE16-NEXT:    s_mov_b32 s1, s3
+; GFX11-FAKE16-NEXT:    s_mov_b32 s2, s6
+; GFX11-FAKE16-NEXT:    s_mov_b32 s3, s7
+; GFX11-FAKE16-NEXT:    buffer_load_u16 v0, off, s[0:3], 0
+; GFX11-FAKE16-NEXT:    s_waitcnt vmcnt(0)
+; GFX11-FAKE16-NEXT:    v_add_f16_e32 v0, 1.0, v0
+; GFX11-FAKE16-NEXT:    buffer_store_b16 v0, off, s[4:7], 0
+; GFX11-FAKE16-NEXT:    s_nop 0
+; GFX11-FAKE16-NEXT:    s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
+; GFX11-FAKE16-NEXT:    s_endpgm
     ptr addrspace(1) %r,
     ptr addrspace(1) %b) {
 entry:
@@ -214,6 +261,26 @@
 ; GFX11-NEXT:    s_nop 0
 ; GFX11-NEXT:    s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
 ; GFX11-NEXT:    s_endpgm
+;
+; GFX11-FAKE16-LABEL: fadd_f16_imm_b:
+; GFX11-FAKE16:       ; %bb.0: ; %entry
+; GFX11-FAKE16-NEXT:    s_load_b128 s[0:3], s[0:1], 0x24
+; GFX11-FAKE16-NEXT:    s_mov_b32 s7, 0x31016000
+; GFX11-FAKE16-NEXT:    s_mov_b32 s6, -1
+; GFX11-FAKE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX11-FAKE16-NEXT:    s_mov_b32 s4, s0
+; GFX11-FAKE16-NEXT:    s_mov_b32 s5, s1
+; GFX11-FAKE16-NEXT:    s_mov_b32 s0, s2
+; GFX11-FAKE16-NEXT:    s_mov_b32 s1, s3
+; GFX11-FAKE16-NEXT:    s_mov_b32 s2, s6
+; GFX11-FAKE16-NEXT:    s_mov_b32 s3, s7
+; GFX11-FAKE16-NEXT:    buffer_load_u16 v0, off, s[0:3], 0
+; GFX11-FAKE16-NEXT:    s_waitcnt vmcnt(0)
+; GFX11-FAKE16-NEXT:    v_add_f16_e32 v0, 2.0, v0
+; GFX11-FAKE16-NEXT:    buffer_store_b16 v0, off, s[4:7], 0
+; GFX11-FAKE16-NEXT:    s_nop 0
+; GFX11-FAKE16-NEXT:    s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
+; GFX11-FAKE16-NEXT:    s_endpgm
     ptr addrspace(1) %r,
     ptr addrspace(1) %a) {
 entry:
@@ -303,6 +370,27 @@
 ; GFX11-NEXT:    s_nop 0
 ; GFX11-NEXT:    s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
 ; GFX11-NEXT:    s_endpgm
+;
+; GFX11-FAKE16-LABEL: fadd_v2f16:
+; GFX11-FAKE16:       ; %bb.0: ; %entry
+; GFX11-FAKE16-NEXT:    s_clause 0x1
+; GFX11-FAKE16-NEXT:    s_load_b128 s[4:7], s[0:1], 0x24
+; GFX11-FAKE16-NEXT:    s_load_b64 s[8:9], s[0:1], 0x34
+; GFX11-FAKE16-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
+; GFX11-FAKE16-NEXT:    s_mov_b32 s3, 0x31016000
+; GFX11-FAKE16-NEXT:    s_mov_b32 s2, -1
+; GFX11-FAKE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX11-FAKE16-NEXT:    s_clause 0x1
+; GFX11-FAKE16-NEXT:    global_load_b32 v1, v0, s[6:7]
+; GFX11-FAKE16-NEXT:    global_load_b32 v0, v0, s[8:9]
+; GFX11-FAKE16-NEXT:    s_mov_b32 s0, s4
+; GFX11-FAKE16-NEXT:    s_mov_b32 s1, s5
+; GFX11-FAKE16-NEXT:    s_waitcnt vmcnt(0)
+; GFX11-FAKE16-NEXT:    v_pk_add_f16 v0, v1, v0
+; GFX11-FAKE16-NEXT:    buffer_store_b32 v0, off, s[0:3], 0
+; GFX11-FAKE16-NEXT:    s_nop 0
+; GFX11-FAKE16-NEXT:    s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
+; GFX11-FAKE16-NEXT:    s_endpgm
     ptr addrspace(1) %r,
     ptr addrspace(1) %a,
     ptr addrspace(1) %b) {
@@ -382,6 +470,23 @@
 ; GFX11-NEXT:    s_nop 0
 ; GFX11-NEXT:    s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
 ; GFX11-NEXT:    s_endpgm
+;
+; GFX11-FAKE16-LABEL: fadd_v2f16_imm_a:
+; GFX11-FAKE16:       ; %bb.0: ; %entry
+; GFX11-FAKE16-NEXT:    s_load_b128 s[0:3], s[0:1], 0x24
+; GFX11-FAKE16-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
+; GFX11-FAKE16-NEXT:    s_mov_b32 s7, 0x31016000
+; GFX11-FAKE16-NEXT:    s_mov_b32 s6, -1
+; GFX11-FAKE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX11-FAKE16-NEXT:    global_load_b32 v0, v0, s[2:3]
+; GFX11-FAKE16-NEXT:    s_mov_b32 s4, s0
+; GFX11-FAKE16-NEXT:    s_mov_b32 s5, s1
+; GFX11-FAKE16-NEXT:    s_waitcnt vmcnt(0)
+; GFX11-FAKE16-NEXT:    v_pk_add_f16 v0, 0x40003c00, v0
+; GFX11-FAKE16-NEXT:    buffer_store_b32 v0, off, s[4:7], 0
+; GFX11-FAKE16-NEXT:    s_nop 0
+; GFX11-FAKE16-NEXT:    s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
+; GFX11-FAKE16-NEXT:    s_endpgm
     ptr addrspace(1) %r,
     ptr addrspace(1) %b) {
 entry:
@@ -458,6 +563,23 @@
 ; GFX11-NEXT:    s_nop 0
 ; GFX11-NEXT:    s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
 ; GFX11-NEXT:    s_endpgm
+;
+; GFX11-FAKE16-LABEL: fadd_v2f16_imm_b:
+; GFX11-FAKE16:       ; %bb.0: ; %entry
+; GFX11-FAKE16-NEXT:    s_load_b128 s[0:3], s[0:1], 0x24
+; GFX11-FAKE16-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
+; GFX11-FAKE16-NEXT:    s_mov_b32 s7, 0x31016000
+; GFX11-FAKE16-NEXT:    s_mov_b32 s6, -1
+; GFX11-FAKE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX11-FAKE16-NEXT:    global_load_b32 v0, v0, s[2:3]
+; GFX11-FAKE16-NEXT:    s_mov_b32 s4, s0
+; GFX11-FAKE16-NEXT:    s_mov_b32 s5, s1
+; GFX11-FAKE16-NEXT:    s_waitcnt vmcnt(0)
+; GFX11-FAKE16-NEXT:    v_pk_add_f16 v0, 0x3c004000, v0
+; GFX11-FAKE16-NEXT:    buffer_store_b32 v0, off, s[4:7], 0
+; GFX11-FAKE16-NEXT:    s_nop 0
+; GFX11-FAKE16-NEXT:    s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
+; GFX11-FAKE16-NEXT:    s_endpgm
     ptr addrspace(1) %r,
     ptr addrspace(1) %a) {
 entry: