Index: llvm/test/CodeGen/AMDGPU/fdiv.f16.ll
===================================================================
--- llvm/test/CodeGen/AMDGPU/fdiv.f16.ll
+++ llvm/test/CodeGen/AMDGPU/fdiv.f16.ll
@@ -1,40 +1,139 @@
-; RUN: llc -march=amdgcn -mcpu=tahiti -denormal-fp-math-f32=preserve-sign -verify-machineinstrs < %s | FileCheck -check-prefixes=GCN,SI %s
-; RUN: llc -march=amdgcn -mcpu=fiji -denormal-fp-math-f32=preserve-sign -verify-machineinstrs < %s | FileCheck -check-prefixes=GCN,GFX8PLUS %s
-; RUN: llc -march=amdgcn -mcpu=fiji -denormal-fp-math-f32=preserve-sign -verify-machineinstrs < %s | FileCheck -check-prefixes=GCN,GFX8PLUS %s
-; RUN: llc -march=amdgcn -mcpu=gfx900 -denormal-fp-math-f32=preserve-sign -verify-machineinstrs < %s | FileCheck -check-prefixes=GCN,GFX8PLUS %s
-; RUN: llc -march=amdgcn -mcpu=gfx1010 -denormal-fp-math-f32=preserve-sign -verify-machineinstrs < %s | FileCheck -check-prefixes=GCN,GFX8PLUS %s
-; RUN: llc -march=amdgcn -mcpu=gfx1100 -denormal-fp-math-f32=preserve-sign -verify-machineinstrs < %s | FileCheck -check-prefixes=GCN,GFX8PLUS,GFX11 %s
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 3
+; RUN: llc -march=amdgcn -mcpu=tahiti -denormal-fp-math-f32=preserve-sign -verify-machineinstrs < %s | FileCheck -check-prefixes=SI %s
+; RUN: llc -march=amdgcn -mcpu=fiji -denormal-fp-math-f32=preserve-sign -verify-machineinstrs < %s | FileCheck -check-prefixes=GFX8 %s
+; RUN: llc -march=amdgcn -mcpu=gfx900 -denormal-fp-math-f32=preserve-sign -verify-machineinstrs < %s | FileCheck -check-prefixes=GFX9 %s
+; RUN: llc -march=amdgcn -mcpu=gfx1010 -denormal-fp-math-f32=preserve-sign -verify-machineinstrs < %s | FileCheck -check-prefixes=GFX10 %s
+; RUN: llc -march=amdgcn -mcpu=gfx1100 -denormal-fp-math-f32=preserve-sign -verify-machineinstrs < %s | FileCheck -check-prefixes=GFX11 %s
 
 ; Make sure fdiv is promoted to f32.
 
-; GCN-LABEL: {{^}}v_fdiv_f16
-; SI:     v_cvt_f32_f16
-; SI:     v_cvt_f32_f16
-; SI:     v_div_scale_f32
-; SI-DAG: v_div_scale_f32
-; SI-DAG: v_rcp_f32
-; SI:     v_fma_f32
-; SI:     v_fma_f32
-; SI:     v_mul_f32
-; SI:     v_fma_f32
-; SI:     v_fma_f32
-; SI:     v_fma_f32
-; SI:     v_div_fmas_f32
-; SI:     v_div_fixup_f32
-; SI:     v_cvt_f16_f32
-
-; GFX8PLUS: {{flat|global}}_load_{{ushort|u16}} [[LHS:v[0-9]+]]
-; GFX8PLUS: {{flat|global}}_load_{{ushort|u16}} [[RHS:v[0-9]+]]
-
-; GFX8PLUS-DAG: v_cvt_f32_f16_e32 [[CVT_LHS:v[0-9]+]], [[LHS]]
-; GFX8PLUS-DAG: v_cvt_f32_f16_e32 [[CVT_RHS:v[0-9]+]], [[RHS]]
-
-; GFX8PLUS-DAG: v_rcp_f32_e32 [[RCP_RHS:v[0-9]+]], [[CVT_RHS]]
-; GFX8PLUS: v_mul_f32_e32 [[MUL:v[0-9]+]], [[CVT_LHS]], [[RCP_RHS]]
-; GFX8PLUS: v_cvt_f16_f32_e32 [[CVT_BACK:v[0-9]+]], [[MUL]]
-; GFX8PLUS: v_div_fixup_f16 [[RESULT:v[0-9]+]], [[CVT_BACK]], [[RHS]], [[LHS]]
-; GFX8PLUS: {{flat|global}}_store_{{short|b16}} v{{.+}}, [[RESULT]]
 define amdgpu_kernel void @v_fdiv_f16(
+; SI-LABEL: v_fdiv_f16:
+; SI:       ; %bb.0: ; %entry
+; SI-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x9
+; SI-NEXT:    s_load_dwordx2 s[8:9], s[0:1], 0xd
+; SI-NEXT:    s_mov_b32 s3, 0xf000
+; SI-NEXT:    s_mov_b32 s2, 0
+; SI-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; SI-NEXT:    s_waitcnt lgkmcnt(0)
+; SI-NEXT:    s_mov_b64 s[0:1], s[6:7]
+; SI-NEXT:    v_mov_b32_e32 v1, 0
+; SI-NEXT:    s_mov_b64 s[10:11], s[2:3]
+; SI-NEXT:    buffer_load_ushort v2, v[0:1], s[0:3], 0 addr64 glc
+; SI-NEXT:    s_waitcnt vmcnt(0)
+; SI-NEXT:    buffer_load_ushort v3, v[0:1], s[8:11], 0 addr64 glc
+; SI-NEXT:    s_waitcnt vmcnt(0)
+; SI-NEXT:    s_mov_b64 s[6:7], s[2:3]
+; SI-NEXT:    v_cvt_f32_f16_e32 v2, v2
+; SI-NEXT:    v_cvt_f32_f16_e32 v3, v3
+; SI-NEXT:    v_div_scale_f32 v4, s[0:1], v3, v3, v2
+; SI-NEXT:    v_rcp_f32_e32 v5, v4
+; SI-NEXT:    v_div_scale_f32 v6, vcc, v2, v3, v2
+; SI-NEXT:    s_setreg_imm32_b32 hwreg(HW_REG_MODE, 4, 2), 3
+; SI-NEXT:    v_fma_f32 v7, -v4, v5, 1.0
+; SI-NEXT:    v_fma_f32 v5, v7, v5, v5
+; SI-NEXT:    v_mul_f32_e32 v7, v6, v5
+; SI-NEXT:    v_fma_f32 v8, -v4, v7, v6
+; SI-NEXT:    v_fma_f32 v7, v8, v5, v7
+; SI-NEXT:    v_fma_f32 v4, -v4, v7, v6
+; SI-NEXT:    s_setreg_imm32_b32 hwreg(HW_REG_MODE, 4, 2), 0
+; SI-NEXT:    v_div_fmas_f32 v4, v4, v5, v7
+; SI-NEXT:    v_div_fixup_f32 v2, v4, v3, v2
+; SI-NEXT:    s_setreg_imm32_b32 hwreg(HW_REG_MODE, 2, 2), 0
+; SI-NEXT:    v_cvt_f16_f32_e32 v2, v2
+; SI-NEXT:    buffer_store_short v2, v[0:1], s[4:7], 0 addr64
+; SI-NEXT:    s_endpgm
+;
+; GFX8-LABEL: v_fdiv_f16:
+; GFX8:       ; %bb.0: ; %entry
+; GFX8-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
+; GFX8-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x34
+; GFX8-NEXT:    v_lshlrev_b32_e32 v4, 1, v0
+; GFX8-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX8-NEXT:    v_mov_b32_e32 v1, s7
+; GFX8-NEXT:    v_add_u32_e32 v0, vcc, s6, v4
+; GFX8-NEXT:    v_addc_u32_e32 v1, vcc, 0, v1, vcc
+; GFX8-NEXT:    v_mov_b32_e32 v3, s1
+; GFX8-NEXT:    v_add_u32_e32 v2, vcc, s0, v4
+; GFX8-NEXT:    v_addc_u32_e32 v3, vcc, 0, v3, vcc
+; GFX8-NEXT:    flat_load_ushort v5, v[0:1] glc
+; GFX8-NEXT:    s_waitcnt vmcnt(0)
+; GFX8-NEXT:    flat_load_ushort v2, v[2:3] glc
+; GFX8-NEXT:    s_waitcnt vmcnt(0)
+; GFX8-NEXT:    v_mov_b32_e32 v3, s5
+; GFX8-NEXT:    v_cvt_f32_f16_e32 v1, v5
+; GFX8-NEXT:    v_cvt_f32_f16_e32 v0, v2
+; GFX8-NEXT:    v_rcp_f32_e32 v0, v0
+; GFX8-NEXT:    v_mul_f32_e32 v0, v1, v0
+; GFX8-NEXT:    v_cvt_f16_f32_e32 v6, v0
+; GFX8-NEXT:    v_add_u32_e32 v0, vcc, s4, v4
+; GFX8-NEXT:    v_addc_u32_e32 v1, vcc, 0, v3, vcc
+; GFX8-NEXT:    v_div_fixup_f16 v2, v6, v2, v5
+; GFX8-NEXT:    flat_store_short v[0:1], v2
+; GFX8-NEXT:    s_endpgm
+;
+; GFX9-LABEL: v_fdiv_f16:
+; GFX9:       ; %bb.0: ; %entry
+; GFX9-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
+; GFX9-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x34
+; GFX9-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX9-NEXT:    global_load_ushort v1, v0, s[6:7] glc
+; GFX9-NEXT:    s_waitcnt vmcnt(0)
+; GFX9-NEXT:    global_load_ushort v2, v0, s[2:3] glc
+; GFX9-NEXT:    s_waitcnt vmcnt(0)
+; GFX9-NEXT:    v_cvt_f32_f16_e32 v4, v1
+; GFX9-NEXT:    v_cvt_f32_f16_e32 v3, v2
+; GFX9-NEXT:    v_rcp_f32_e32 v3, v3
+; GFX9-NEXT:    v_mul_f32_e32 v3, v4, v3
+; GFX9-NEXT:    v_cvt_f16_f32_e32 v3, v3
+; GFX9-NEXT:    v_div_fixup_f16 v1, v3, v2, v1
+; GFX9-NEXT:    global_store_short v0, v1, s[4:5]
+; GFX9-NEXT:    s_endpgm
+;
+; GFX10-LABEL: v_fdiv_f16:
+; GFX10:       ; %bb.0: ; %entry
+; GFX10-NEXT:    s_clause 0x1
+; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
+; GFX10-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x34
+; GFX10-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX10-NEXT:    global_load_ushort v1, v0, s[6:7] glc dlc
+; GFX10-NEXT:    s_waitcnt vmcnt(0)
+; GFX10-NEXT:    global_load_ushort v2, v0, s[2:3] glc dlc
+; GFX10-NEXT:    s_waitcnt vmcnt(0)
+; GFX10-NEXT:    v_cvt_f32_f16_e32 v4, v1
+; GFX10-NEXT:    v_cvt_f32_f16_e32 v3, v2
+; GFX10-NEXT:    v_rcp_f32_e32 v3, v3
+; GFX10-NEXT:    v_mul_f32_e32 v3, v4, v3
+; GFX10-NEXT:    v_cvt_f16_f32_e32 v3, v3
+; GFX10-NEXT:    v_div_fixup_f16 v1, v3, v2, v1
+; GFX10-NEXT:    global_store_short v0, v1, s[4:5]
+; GFX10-NEXT:    s_endpgm
+;
+; GFX11-LABEL: v_fdiv_f16:
+; GFX11:       ; %bb.0: ; %entry
+; GFX11-NEXT:    s_clause 0x1
+; GFX11-NEXT:    s_load_b128 s[4:7], s[0:1], 0x24
+; GFX11-NEXT:    s_load_b64 s[0:1], s[0:1], 0x34
+; GFX11-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX11-NEXT:    global_load_u16 v1, v0, s[6:7] glc dlc
+; GFX11-NEXT:    s_waitcnt vmcnt(0)
+; GFX11-NEXT:    global_load_u16 v2, v0, s[0:1] glc dlc
+; GFX11-NEXT:    s_waitcnt vmcnt(0)
+; GFX11-NEXT:    v_cvt_f32_f16_e32 v4, v1
+; GFX11-NEXT:    v_cvt_f32_f16_e32 v3, v2
+; GFX11-NEXT:    s_delay_alu instid0(VALU_DEP_1) | instskip(SKIP_2) | instid1(VALU_DEP_1)
+; GFX11-NEXT:    v_rcp_f32_e32 v3, v3
+; GFX11-NEXT:    s_waitcnt_depctr 0xfff
+; GFX11-NEXT:    v_mul_f32_e32 v3, v4, v3
+; GFX11-NEXT:    v_cvt_f16_f32_e32 v3, v3
+; GFX11-NEXT:    s_delay_alu instid0(VALU_DEP_1)
+; GFX11-NEXT:    v_div_fixup_f16 v1, v3, v2, v1
+; GFX11-NEXT:    global_store_b16 v0, v1, s[4:5]
+; GFX11-NEXT:    s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
+; GFX11-NEXT:    s_endpgm
     ptr addrspace(1) %r,
     ptr addrspace(1) %a,
     ptr addrspace(1) %b) #0 {
@@ -51,13 +150,88 @@
   ret void
 }
 
-; GCN-LABEL: {{^}}v_rcp_f16:
-; GFX8PLUS: {{flat|global}}_load_{{ushort|u16}} [[VAL:v[0-9]+]]
-; GFX8PLUS-NOT: [[VAL]]
-; GFX8PLUS: v_rcp_f16_e32 [[RESULT:v[0-9]+]], [[VAL]]
-; GFX8PLUS-NOT: [[RESULT]]
-; GFX8PLUS: {{flat|global}}_store_{{short|b16}} v{{.+}}, [[RESULT]]
 define amdgpu_kernel void @v_rcp_f16(ptr addrspace(1) %r, ptr addrspace(1) %b) #0 {
+; SI-LABEL: v_rcp_f16:
+; SI:       ; %bb.0: ; %entry
+; SI-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x9
+; SI-NEXT:    s_mov_b32 s7, 0xf000
+; SI-NEXT:    s_mov_b32 s6, 0
+; SI-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; SI-NEXT:    v_mov_b32_e32 v1, 0
+; SI-NEXT:    s_waitcnt lgkmcnt(0)
+; SI-NEXT:    s_mov_b64 s[4:5], s[2:3]
+; SI-NEXT:    buffer_load_ushort v2, v[0:1], s[4:7], 0 addr64 glc
+; SI-NEXT:    s_waitcnt vmcnt(0)
+; SI-NEXT:    v_cvt_f32_f16_e32 v2, v2
+; SI-NEXT:    v_div_scale_f32 v3, s[2:3], v2, v2, 1.0
+; SI-NEXT:    v_rcp_f32_e32 v4, v3
+; SI-NEXT:    v_div_scale_f32 v5, vcc, 1.0, v2, 1.0
+; SI-NEXT:    s_setreg_imm32_b32 hwreg(HW_REG_MODE, 4, 2), 3
+; SI-NEXT:    v_fma_f32 v6, -v3, v4, 1.0
+; SI-NEXT:    v_fma_f32 v4, v6, v4, v4
+; SI-NEXT:    v_mul_f32_e32 v6, v5, v4
+; SI-NEXT:    v_fma_f32 v7, -v3, v6, v5
+; SI-NEXT:    v_fma_f32 v6, v7, v4, v6
+; SI-NEXT:    v_fma_f32 v3, -v3, v6, v5
+; SI-NEXT:    s_setreg_imm32_b32 hwreg(HW_REG_MODE, 4, 2), 0
+; SI-NEXT:    v_div_fmas_f32 v3, v3, v4, v6
+; SI-NEXT:    v_div_fixup_f32 v2, v3, v2, 1.0
+; SI-NEXT:    s_setreg_imm32_b32 hwreg(HW_REG_MODE, 2, 2), 0
+; SI-NEXT:    v_cvt_f16_f32_e32 v2, v2
+; SI-NEXT:    s_mov_b64 s[2:3], s[6:7]
+; SI-NEXT:    buffer_store_short v2, v[0:1], s[0:3], 0 addr64
+; SI-NEXT:    s_endpgm
+;
+; GFX8-LABEL: v_rcp_f16:
+; GFX8:       ; %bb.0: ; %entry
+; GFX8-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
+; GFX8-NEXT:    v_lshlrev_b32_e32 v2, 1, v0
+; GFX8-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX8-NEXT:    v_mov_b32_e32 v1, s3
+; GFX8-NEXT:    v_add_u32_e32 v0, vcc, s2, v2
+; GFX8-NEXT:    v_addc_u32_e32 v1, vcc, 0, v1, vcc
+; GFX8-NEXT:    flat_load_ushort v0, v[0:1] glc
+; GFX8-NEXT:    s_waitcnt vmcnt(0)
+; GFX8-NEXT:    v_mov_b32_e32 v1, s1
+; GFX8-NEXT:    v_rcp_f16_e32 v3, v0
+; GFX8-NEXT:    v_add_u32_e32 v0, vcc, s0, v2
+; GFX8-NEXT:    v_addc_u32_e32 v1, vcc, 0, v1, vcc
+; GFX8-NEXT:    flat_store_short v[0:1], v3
+; GFX8-NEXT:    s_endpgm
+;
+; GFX9-LABEL: v_rcp_f16:
+; GFX9:       ; %bb.0: ; %entry
+; GFX9-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
+; GFX9-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX9-NEXT:    global_load_ushort v1, v0, s[2:3] glc
+; GFX9-NEXT:    s_waitcnt vmcnt(0)
+; GFX9-NEXT:    v_rcp_f16_e32 v1, v1
+; GFX9-NEXT:    global_store_short v0, v1, s[0:1]
+; GFX9-NEXT:    s_endpgm
+;
+; GFX10-LABEL: v_rcp_f16:
+; GFX10:       ; %bb.0: ; %entry
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
+; GFX10-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX10-NEXT:    global_load_ushort v1, v0, s[2:3] glc dlc
+; GFX10-NEXT:    s_waitcnt vmcnt(0)
+; GFX10-NEXT:    v_rcp_f16_e32 v1, v1
+; GFX10-NEXT:    global_store_short v0, v1, s[0:1]
+; GFX10-NEXT:    s_endpgm
+;
+; GFX11-LABEL: v_rcp_f16:
+; GFX11:       ; %bb.0: ; %entry
+; GFX11-NEXT:    s_load_b128 s[0:3], s[0:1], 0x24
+; GFX11-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX11-NEXT:    global_load_u16 v1, v0, s[2:3] glc dlc
+; GFX11-NEXT:    s_waitcnt vmcnt(0)
+; GFX11-NEXT:    v_rcp_f16_e32 v1, v1
+; GFX11-NEXT:    global_store_b16 v0, v1, s[0:1]
+; GFX11-NEXT:    s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
+; GFX11-NEXT:    s_endpgm
 entry:
   %tid = call i32 @llvm.amdgcn.workitem.id.x()
   %tid.ext = sext i32 %tid to i64
@@ -69,13 +243,88 @@
   ret void
 }
 
-; GCN-LABEL: {{^}}v_rcp_f16_abs:
-; GFX8PLUS: {{flat|global}}_load_{{ushort|u16}} [[VAL:v[0-9]+]]
-; GFX8PLUS-NOT: [[VAL]]
-; GFX8PLUS: v_rcp_f16_e64 [[RESULT:v[0-9]+]], |[[VAL]]|
-; GFX8PLUS-NOT: [RESULT]]
-; GFX8PLUS: {{flat|global}}_store_{{short|b16}} v{{.+}}, [[RESULT]]
 define amdgpu_kernel void @v_rcp_f16_abs(ptr addrspace(1) %r, ptr addrspace(1) %b) #0 {
+; SI-LABEL: v_rcp_f16_abs:
+; SI:       ; %bb.0: ; %entry
+; SI-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x9
+; SI-NEXT:    s_mov_b32 s7, 0xf000
+; SI-NEXT:    s_mov_b32 s6, 0
+; SI-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; SI-NEXT:    v_mov_b32_e32 v1, 0
+; SI-NEXT:    s_waitcnt lgkmcnt(0)
+; SI-NEXT:    s_mov_b64 s[4:5], s[2:3]
+; SI-NEXT:    buffer_load_ushort v2, v[0:1], s[4:7], 0 addr64 glc
+; SI-NEXT:    s_waitcnt vmcnt(0)
+; SI-NEXT:    v_cvt_f32_f16_e64 v2, |v2|
+; SI-NEXT:    v_div_scale_f32 v3, s[2:3], v2, v2, 1.0
+; SI-NEXT:    v_rcp_f32_e32 v4, v3
+; SI-NEXT:    v_div_scale_f32 v5, vcc, 1.0, v2, 1.0
+; SI-NEXT:    s_setreg_imm32_b32 hwreg(HW_REG_MODE, 4, 2), 3
+; SI-NEXT:    v_fma_f32 v6, -v3, v4, 1.0
+; SI-NEXT:    v_fma_f32 v4, v6, v4, v4
+; SI-NEXT:    v_mul_f32_e32 v6, v5, v4
+; SI-NEXT:    v_fma_f32 v7, -v3, v6, v5
+; SI-NEXT:    v_fma_f32 v6, v7, v4, v6
+; SI-NEXT:    v_fma_f32 v3, -v3, v6, v5
+; SI-NEXT:    s_setreg_imm32_b32 hwreg(HW_REG_MODE, 4, 2), 0
+; SI-NEXT:    v_div_fmas_f32 v3, v3, v4, v6
+; SI-NEXT:    v_div_fixup_f32 v2, v3, v2, 1.0
+; SI-NEXT:    s_setreg_imm32_b32 hwreg(HW_REG_MODE, 2, 2), 0
+; SI-NEXT:    v_cvt_f16_f32_e32 v2, v2
+; SI-NEXT:    s_mov_b64 s[2:3], s[6:7]
+; SI-NEXT:    buffer_store_short v2, v[0:1], s[0:3], 0 addr64
+; SI-NEXT:    s_endpgm
+;
+; GFX8-LABEL: v_rcp_f16_abs:
+; GFX8:       ; %bb.0: ; %entry
+; GFX8-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
+; GFX8-NEXT:    v_lshlrev_b32_e32 v2, 1, v0
+; GFX8-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX8-NEXT:    v_mov_b32_e32 v1, s3
+; GFX8-NEXT:    v_add_u32_e32 v0, vcc, s2, v2
+; GFX8-NEXT:    v_addc_u32_e32 v1, vcc, 0, v1, vcc
+; GFX8-NEXT:    flat_load_ushort v0, v[0:1] glc
+; GFX8-NEXT:    s_waitcnt vmcnt(0)
+; GFX8-NEXT:    v_mov_b32_e32 v1, s1
+; GFX8-NEXT:    v_rcp_f16_e64 v3, |v0|
+; GFX8-NEXT:    v_add_u32_e32 v0, vcc, s0, v2
+; GFX8-NEXT:    v_addc_u32_e32 v1, vcc, 0, v1, vcc
+; GFX8-NEXT:    flat_store_short v[0:1], v3
+; GFX8-NEXT:    s_endpgm
+;
+; GFX9-LABEL: v_rcp_f16_abs:
+; GFX9:       ; %bb.0: ; %entry
+; GFX9-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
+; GFX9-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX9-NEXT:    global_load_ushort v1, v0, s[2:3] glc
+; GFX9-NEXT:    s_waitcnt vmcnt(0)
+; GFX9-NEXT:    v_rcp_f16_e64 v1, |v1|
+; GFX9-NEXT:    global_store_short v0, v1, s[0:1]
+; GFX9-NEXT:    s_endpgm
+;
+; GFX10-LABEL: v_rcp_f16_abs:
+; GFX10:       ; %bb.0: ; %entry
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
+; GFX10-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX10-NEXT:    global_load_ushort v1, v0, s[2:3] glc dlc
+; GFX10-NEXT:    s_waitcnt vmcnt(0)
+; GFX10-NEXT:    v_rcp_f16_e64 v1, |v1|
+; GFX10-NEXT:    global_store_short v0, v1, s[0:1]
+; GFX10-NEXT:    s_endpgm
+;
+; GFX11-LABEL: v_rcp_f16_abs:
+; GFX11:       ; %bb.0: ; %entry
+; GFX11-NEXT:    s_load_b128 s[0:3], s[0:1], 0x24
+; GFX11-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX11-NEXT:    global_load_u16 v1, v0, s[2:3] glc dlc
+; GFX11-NEXT:    s_waitcnt vmcnt(0)
+; GFX11-NEXT:    v_rcp_f16_e64 v1, |v1|
+; GFX11-NEXT:    global_store_b16 v0, v1, s[0:1]
+; GFX11-NEXT:    s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
+; GFX11-NEXT:    s_endpgm
 entry:
   %tid = call i32 @llvm.amdgcn.workitem.id.x()
   %tid.ext = sext i32 %tid to i64
@@ -90,11 +339,88 @@
 
 ; We could not do 1/b -> rcp_f16(b) under !fpmath < 1ulp.
 
-; GCN-LABEL: {{^}}reciprocal_f16_rounded:
-; GFX8PLUS: {{flat|global}}_load_{{ushort|u16}} [[VAL16:v[0-9]+]], v{{.+}}
-; GFX8PLUS: v_rcp_f16_e32 [[RESULT:v[0-9]+]], [[VAL16]]
-; GFX8PLUS: {{flat|global}}_store_{{short|b16}} v{{.+}}, [[RESULT]]
 define amdgpu_kernel void @reciprocal_f16_rounded(ptr addrspace(1) %r, ptr addrspace(1) %b) #0 {
+; SI-LABEL: reciprocal_f16_rounded:
+; SI:       ; %bb.0: ; %entry
+; SI-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x9
+; SI-NEXT:    s_mov_b32 s7, 0xf000
+; SI-NEXT:    s_mov_b32 s6, 0
+; SI-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; SI-NEXT:    v_mov_b32_e32 v1, 0
+; SI-NEXT:    s_waitcnt lgkmcnt(0)
+; SI-NEXT:    s_mov_b64 s[4:5], s[2:3]
+; SI-NEXT:    buffer_load_ushort v2, v[0:1], s[4:7], 0 addr64 glc
+; SI-NEXT:    s_waitcnt vmcnt(0)
+; SI-NEXT:    v_cvt_f32_f16_e32 v2, v2
+; SI-NEXT:    v_div_scale_f32 v3, s[2:3], v2, v2, 1.0
+; SI-NEXT:    v_rcp_f32_e32 v4, v3
+; SI-NEXT:    v_div_scale_f32 v5, vcc, 1.0, v2, 1.0
+; SI-NEXT:    s_setreg_imm32_b32 hwreg(HW_REG_MODE, 4, 2), 3
+; SI-NEXT:    v_fma_f32 v6, -v3, v4, 1.0
+; SI-NEXT:    v_fma_f32 v4, v6, v4, v4
+; SI-NEXT:    v_mul_f32_e32 v6, v5, v4
+; SI-NEXT:    v_fma_f32 v7, -v3, v6, v5
+; SI-NEXT:    v_fma_f32 v6, v7, v4, v6
+; SI-NEXT:    v_fma_f32 v3, -v3, v6, v5
+; SI-NEXT:    s_setreg_imm32_b32 hwreg(HW_REG_MODE, 4, 2), 0
+; SI-NEXT:    v_div_fmas_f32 v3, v3, v4, v6
+; SI-NEXT:    v_div_fixup_f32 v2, v3, v2, 1.0
+; SI-NEXT:    s_setreg_imm32_b32 hwreg(HW_REG_MODE, 2, 2), 0
+; SI-NEXT:    v_cvt_f16_f32_e32 v2, v2
+; SI-NEXT:    s_mov_b64 s[2:3], s[6:7]
+; SI-NEXT:    buffer_store_short v2, v[0:1], s[0:3], 0 addr64
+; SI-NEXT:    s_endpgm
+;
+; GFX8-LABEL: reciprocal_f16_rounded:
+; GFX8:       ; %bb.0: ; %entry
+; GFX8-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
+; GFX8-NEXT:    v_lshlrev_b32_e32 v2, 1, v0
+; GFX8-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX8-NEXT:    v_mov_b32_e32 v1, s3
+; GFX8-NEXT:    v_add_u32_e32 v0, vcc, s2, v2
+; GFX8-NEXT:    v_addc_u32_e32 v1, vcc, 0, v1, vcc
+; GFX8-NEXT:    flat_load_ushort v0, v[0:1] glc
+; GFX8-NEXT:    s_waitcnt vmcnt(0)
+; GFX8-NEXT:    v_mov_b32_e32 v1, s1
+; GFX8-NEXT:    v_rcp_f16_e32 v3, v0
+; GFX8-NEXT:    v_add_u32_e32 v0, vcc, s0, v2
+; GFX8-NEXT:    v_addc_u32_e32 v1, vcc, 0, v1, vcc
+; GFX8-NEXT:    flat_store_short v[0:1], v3
+; GFX8-NEXT:    s_endpgm
+;
+; GFX9-LABEL: reciprocal_f16_rounded:
+; GFX9:       ; %bb.0: ; %entry
+; GFX9-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
+; GFX9-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX9-NEXT:    global_load_ushort v1, v0, s[2:3] glc
+; GFX9-NEXT:    s_waitcnt vmcnt(0)
+; GFX9-NEXT:    v_rcp_f16_e32 v1, v1
+; GFX9-NEXT:    global_store_short v0, v1, s[0:1]
+; GFX9-NEXT:    s_endpgm
+;
+; GFX10-LABEL: reciprocal_f16_rounded:
+; GFX10:       ; %bb.0: ; %entry
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
+; GFX10-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX10-NEXT:    global_load_ushort v1, v0, s[2:3] glc dlc
+; GFX10-NEXT:    s_waitcnt vmcnt(0)
+; GFX10-NEXT:    v_rcp_f16_e32 v1, v1
+; GFX10-NEXT:    global_store_short v0, v1, s[0:1]
+; GFX10-NEXT:    s_endpgm
+;
+; GFX11-LABEL: reciprocal_f16_rounded:
+; GFX11:       ; %bb.0: ; %entry
+; GFX11-NEXT:    s_load_b128 s[0:3], s[0:1], 0x24
+; GFX11-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX11-NEXT:    global_load_u16 v1, v0, s[2:3] glc dlc
+; GFX11-NEXT:    s_waitcnt vmcnt(0)
+; GFX11-NEXT:    v_rcp_f16_e32 v1, v1
+; GFX11-NEXT:    global_store_b16 v0, v1, s[0:1]
+; GFX11-NEXT:    s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
+; GFX11-NEXT:    s_endpgm
 entry:
   %tid = call i32 @llvm.amdgcn.workitem.id.x()
   %tid.ext = sext i32 %tid to i64
@@ -106,13 +432,75 @@
   ret void
 }
 
-; GCN-LABEL: {{^}}v_rcp_f16_afn:
-; GFX8PLUS: {{flat|global}}_load_{{ushort|u16}} [[VAL:v[0-9]+]]
-; GFX8PLUS-NOT: [[VAL]]
-; GFX8PLUS: v_rcp_f16_e32 [[RESULT:v[0-9]+]], [[VAL]]
-; GFX8PLUS-NOT: [[RESULT]]
-; GFX8PLUS: {{flat|global}}_store_{{short|b16}} v{{.+}}, [[RESULT]]
 define amdgpu_kernel void @v_rcp_f16_afn(ptr addrspace(1) %r, ptr addrspace(1) %b) #0 {
+; SI-LABEL: v_rcp_f16_afn:
+; SI:       ; %bb.0: ; %entry
+; SI-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x9
+; SI-NEXT:    s_mov_b32 s7, 0xf000
+; SI-NEXT:    s_mov_b32 s6, 0
+; SI-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; SI-NEXT:    v_mov_b32_e32 v1, 0
+; SI-NEXT:    s_waitcnt lgkmcnt(0)
+; SI-NEXT:    s_mov_b64 s[4:5], s[2:3]
+; SI-NEXT:    buffer_load_ushort v2, v[0:1], s[4:7], 0 addr64 glc
+; SI-NEXT:    s_waitcnt vmcnt(0)
+; SI-NEXT:    s_mov_b64 s[2:3], s[6:7]
+; SI-NEXT:    v_cvt_f32_f16_e32 v2, v2
+; SI-NEXT:    v_rcp_f32_e32 v2, v2
+; SI-NEXT:    v_cvt_f16_f32_e32 v2, v2
+; SI-NEXT:    buffer_store_short v2, v[0:1], s[0:3], 0 addr64
+; SI-NEXT:    s_endpgm
+;
+; GFX8-LABEL: v_rcp_f16_afn:
+; GFX8:       ; %bb.0: ; %entry
+; GFX8-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
+; GFX8-NEXT:    v_lshlrev_b32_e32 v2, 1, v0
+; GFX8-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX8-NEXT:    v_mov_b32_e32 v1, s3
+; GFX8-NEXT:    v_add_u32_e32 v0, vcc, s2, v2
+; GFX8-NEXT:    v_addc_u32_e32 v1, vcc, 0, v1, vcc
+; GFX8-NEXT:    flat_load_ushort v0, v[0:1] glc
+; GFX8-NEXT:    s_waitcnt vmcnt(0)
+; GFX8-NEXT:    v_mov_b32_e32 v1, s1
+; GFX8-NEXT:    v_rcp_f16_e32 v3, v0
+; GFX8-NEXT:    v_add_u32_e32 v0, vcc, s0, v2
+; GFX8-NEXT:    v_addc_u32_e32 v1, vcc, 0, v1, vcc
+; GFX8-NEXT:    flat_store_short v[0:1], v3
+; GFX8-NEXT:    s_endpgm
+;
+; GFX9-LABEL: v_rcp_f16_afn:
+; GFX9:       ; %bb.0: ; %entry
+; GFX9-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
+; GFX9-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX9-NEXT:    global_load_ushort v1, v0, s[2:3] glc
+; GFX9-NEXT:    s_waitcnt vmcnt(0)
+; GFX9-NEXT:    v_rcp_f16_e32 v1, v1
+; GFX9-NEXT:    global_store_short v0, v1, s[0:1]
+; GFX9-NEXT:    s_endpgm
+;
+; GFX10-LABEL: v_rcp_f16_afn:
+; GFX10:       ; %bb.0: ; %entry
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
+; GFX10-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX10-NEXT:    global_load_ushort v1, v0, s[2:3] glc dlc
+; GFX10-NEXT:    s_waitcnt vmcnt(0)
+; GFX10-NEXT:    v_rcp_f16_e32 v1, v1
+; GFX10-NEXT:    global_store_short v0, v1, s[0:1]
+; GFX10-NEXT:    s_endpgm
+;
+; GFX11-LABEL: v_rcp_f16_afn:
+; GFX11:       ; %bb.0: ; %entry
+; GFX11-NEXT:    s_load_b128 s[0:3], s[0:1], 0x24
+; GFX11-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX11-NEXT:    global_load_u16 v1, v0, s[2:3] glc dlc
+; GFX11-NEXT:    s_waitcnt vmcnt(0)
+; GFX11-NEXT:    v_rcp_f16_e32 v1, v1
+; GFX11-NEXT:    global_store_b16 v0, v1, s[0:1]
+; GFX11-NEXT:    s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
+; GFX11-NEXT:    s_endpgm
 entry:
   %tid = call i32 @llvm.amdgcn.workitem.id.x()
   %tid.ext = sext i32 %tid to i64
@@ -124,13 +512,88 @@
   ret void
 }
 
-; GCN-LABEL: {{^}}v_rcp_f16_neg:
-; GFX8PLUS: {{flat|global}}_load_{{ushort|u16}} [[VAL:v[0-9]+]]
-; GFX8PLUS-NOT: [[VAL]]
-; GFX8PLUS: v_rcp_f16_e64 [[RESULT:v[0-9]+]], -[[VAL]]
-; GFX8PLUS-NOT: [RESULT]]
-; GFX8PLUS: {{flat|global}}_store_{{short|b16}} v{{.+}}, [[RESULT]]
 define amdgpu_kernel void @v_rcp_f16_neg(ptr addrspace(1) %r, ptr addrspace(1) %b) #0 {
+; SI-LABEL: v_rcp_f16_neg:
+; SI:       ; %bb.0: ; %entry
+; SI-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x9
+; SI-NEXT:    s_mov_b32 s7, 0xf000
+; SI-NEXT:    s_mov_b32 s6, 0
+; SI-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; SI-NEXT:    v_mov_b32_e32 v1, 0
+; SI-NEXT:    s_waitcnt lgkmcnt(0)
+; SI-NEXT:    s_mov_b64 s[4:5], s[2:3]
+; SI-NEXT:    buffer_load_ushort v2, v[0:1], s[4:7], 0 addr64 glc
+; SI-NEXT:    s_waitcnt vmcnt(0)
+; SI-NEXT:    v_cvt_f32_f16_e32 v2, v2
+; SI-NEXT:    v_div_scale_f32 v3, s[2:3], v2, v2, -1.0
+; SI-NEXT:    v_rcp_f32_e32 v4, v3
+; SI-NEXT:    v_div_scale_f32 v5, vcc, -1.0, v2, -1.0
+; SI-NEXT:    s_setreg_imm32_b32 hwreg(HW_REG_MODE, 4, 2), 3
+; SI-NEXT:    v_fma_f32 v6, -v3, v4, 1.0
+; SI-NEXT:    v_fma_f32 v4, v6, v4, v4
+; SI-NEXT:    v_mul_f32_e32 v6, v5, v4
+; SI-NEXT:    v_fma_f32 v7, -v3, v6, v5
+; SI-NEXT:    v_fma_f32 v6, v7, v4, v6
+; SI-NEXT:    v_fma_f32 v3, -v3, v6, v5
+; SI-NEXT:    s_setreg_imm32_b32 hwreg(HW_REG_MODE, 4, 2), 0
+; SI-NEXT:    v_div_fmas_f32 v3, v3, v4, v6
+; SI-NEXT:    v_div_fixup_f32 v2, v3, v2, -1.0
+; SI-NEXT:    s_setreg_imm32_b32 hwreg(HW_REG_MODE, 2, 2), 0
+; SI-NEXT:    v_cvt_f16_f32_e32 v2, v2
+; SI-NEXT:    s_mov_b64 s[2:3], s[6:7]
+; SI-NEXT:    buffer_store_short v2, v[0:1], s[0:3], 0 addr64
+; SI-NEXT:    s_endpgm
+;
+; GFX8-LABEL: v_rcp_f16_neg:
+; GFX8:       ; %bb.0: ; %entry
+; GFX8-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
+; GFX8-NEXT:    v_lshlrev_b32_e32 v2, 1, v0
+; GFX8-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX8-NEXT:    v_mov_b32_e32 v1, s3
+; GFX8-NEXT:    v_add_u32_e32 v0, vcc, s2, v2
+; GFX8-NEXT:    v_addc_u32_e32 v1, vcc, 0, v1, vcc
+; GFX8-NEXT:    flat_load_ushort v0, v[0:1] glc
+; GFX8-NEXT:    s_waitcnt vmcnt(0)
+; GFX8-NEXT:    v_mov_b32_e32 v1, s1
+; GFX8-NEXT:    v_rcp_f16_e64 v3, -v0
+; GFX8-NEXT:    v_add_u32_e32 v0, vcc, s0, v2
+; GFX8-NEXT:    v_addc_u32_e32 v1, vcc, 0, v1, vcc
+; GFX8-NEXT:    flat_store_short v[0:1], v3
+; GFX8-NEXT:    s_endpgm
+;
+; GFX9-LABEL: v_rcp_f16_neg:
+; GFX9:       ; %bb.0: ; %entry
+; GFX9-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
+; GFX9-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX9-NEXT:    global_load_ushort v1, v0, s[2:3] glc
+; GFX9-NEXT:    s_waitcnt vmcnt(0)
+; GFX9-NEXT:    v_rcp_f16_e64 v1, -v1
+; GFX9-NEXT:    global_store_short v0, v1, s[0:1]
+; GFX9-NEXT:    s_endpgm
+;
+; GFX10-LABEL: v_rcp_f16_neg:
+; GFX10:       ; %bb.0: ; %entry
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
+; GFX10-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX10-NEXT:    global_load_ushort v1, v0, s[2:3] glc dlc
+; GFX10-NEXT:    s_waitcnt vmcnt(0)
+; GFX10-NEXT:    v_rcp_f16_e64 v1, -v1
+; GFX10-NEXT:    global_store_short v0, v1, s[0:1]
+; GFX10-NEXT:    s_endpgm
+;
+; GFX11-LABEL: v_rcp_f16_neg:
+; GFX11:       ; %bb.0: ; %entry
+; GFX11-NEXT:    s_load_b128 s[0:3], s[0:1], 0x24
+; GFX11-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX11-NEXT:    global_load_u16 v1, v0, s[2:3] glc dlc
+; GFX11-NEXT:    s_waitcnt vmcnt(0)
+; GFX11-NEXT:    v_rcp_f16_e64 v1, -v1
+; GFX11-NEXT:    global_store_b16 v0, v1, s[0:1]
+; GFX11-NEXT:    s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
+; GFX11-NEXT:    s_endpgm
 entry:
   %tid = call i32 @llvm.amdgcn.workitem.id.x()
   %tid.ext = sext i32 %tid to i64
@@ -142,13 +605,89 @@
   ret void
 }
 
-; GCN-LABEL: {{^}}v_rsq_f16:
-; GFX8PLUS: {{flat|global}}_load_{{ushort|u16}} [[VAL:v[0-9]+]]
-; GFX8PLUS-NOT: [[VAL]]
-; GFX8PLUS: v_rsq_f16_e32 [[RESULT:v[0-9]+]], [[VAL]]
-; GFX8PLUS-NOT: [RESULT]]
-; GFX8PLUS: {{flat|global}}_store_{{short|b16}} v{{.+}}, [[RESULT]]
 define amdgpu_kernel void @v_rsq_f16(ptr addrspace(1) %r, ptr addrspace(1) %b) #0 {
+; SI-LABEL: v_rsq_f16:
+; SI:       ; %bb.0: ; %entry
+; SI-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x9
+; SI-NEXT:    s_mov_b32 s7, 0xf000
+; SI-NEXT:    s_mov_b32 s6, 0
+; SI-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; SI-NEXT:    v_mov_b32_e32 v1, 0
+; SI-NEXT:    s_waitcnt lgkmcnt(0)
+; SI-NEXT:    s_mov_b64 s[4:5], s[2:3]
+; SI-NEXT:    buffer_load_ushort v2, v[0:1], s[4:7], 0 addr64 glc
+; SI-NEXT:    s_waitcnt vmcnt(0)
+; SI-NEXT:    v_cvt_f32_f16_e32 v2, v2
+; SI-NEXT:    v_sqrt_f32_e32 v2, v2
+; SI-NEXT:    v_div_scale_f32 v3, s[2:3], v2, v2, 1.0
+; SI-NEXT:    v_rcp_f32_e32 v4, v3
+; SI-NEXT:    v_div_scale_f32 v5, vcc, 1.0, v2, 1.0
+; SI-NEXT:    s_setreg_imm32_b32 hwreg(HW_REG_MODE, 4, 2), 3
+; SI-NEXT:    v_fma_f32 v6, -v3, v4, 1.0
+; SI-NEXT:    v_fma_f32 v4, v6, v4, v4
+; SI-NEXT:    v_mul_f32_e32 v6, v5, v4
+; SI-NEXT:    v_fma_f32 v7, -v3, v6, v5
+; SI-NEXT:    v_fma_f32 v6, v7, v4, v6
+; SI-NEXT:    v_fma_f32 v3, -v3, v6, v5
+; SI-NEXT:    s_setreg_imm32_b32 hwreg(HW_REG_MODE, 4, 2), 0
+; SI-NEXT:    v_div_fmas_f32 v3, v3, v4, v6
+; SI-NEXT:    v_div_fixup_f32 v2, v3, v2, 1.0
+; SI-NEXT:    s_setreg_imm32_b32 hwreg(HW_REG_MODE, 2, 2), 0
+; SI-NEXT:    v_cvt_f16_f32_e32 v2, v2
+; SI-NEXT:    s_mov_b64 s[2:3], s[6:7]
+; SI-NEXT:    buffer_store_short v2, v[0:1], s[0:3], 0 addr64
+; SI-NEXT:    s_endpgm
+;
+; GFX8-LABEL: v_rsq_f16:
+; GFX8:       ; %bb.0: ; %entry
+; GFX8-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
+; GFX8-NEXT:    v_lshlrev_b32_e32 v2, 1, v0
+; GFX8-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX8-NEXT:    v_mov_b32_e32 v1, s3
+; GFX8-NEXT:    v_add_u32_e32 v0, vcc, s2, v2
+; GFX8-NEXT:    v_addc_u32_e32 v1, vcc, 0, v1, vcc
+; GFX8-NEXT:    flat_load_ushort v0, v[0:1] glc
+; GFX8-NEXT:    s_waitcnt vmcnt(0)
+; GFX8-NEXT:    v_mov_b32_e32 v1, s1
+; GFX8-NEXT:    v_rsq_f16_e32 v3, v0
+; GFX8-NEXT:    v_add_u32_e32 v0, vcc, s0, v2
+; GFX8-NEXT:    v_addc_u32_e32 v1, vcc, 0, v1, vcc
+; GFX8-NEXT:    flat_store_short v[0:1], v3
+; GFX8-NEXT:    s_endpgm
+;
+; GFX9-LABEL: v_rsq_f16:
+; GFX9:       ; %bb.0: ; %entry
+; GFX9-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
+; GFX9-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX9-NEXT:    global_load_ushort v1, v0, s[2:3] glc
+; GFX9-NEXT:    s_waitcnt vmcnt(0)
+; GFX9-NEXT:    v_rsq_f16_e32 v1, v1
+; GFX9-NEXT:    global_store_short v0, v1, s[0:1]
+; GFX9-NEXT:    s_endpgm
+;
+; GFX10-LABEL: v_rsq_f16:
+; GFX10:       ; %bb.0: ; %entry
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
+; GFX10-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX10-NEXT:    global_load_ushort v1, v0, s[2:3] glc dlc
+; GFX10-NEXT:    s_waitcnt vmcnt(0)
+; GFX10-NEXT:    v_rsq_f16_e32 v1, v1
+; GFX10-NEXT:    global_store_short v0, v1, s[0:1]
+; GFX10-NEXT:    s_endpgm
+;
+; GFX11-LABEL: v_rsq_f16:
+; GFX11:       ; %bb.0: ; %entry
+; GFX11-NEXT:    s_load_b128 s[0:3], s[0:1], 0x24
+; GFX11-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX11-NEXT:    global_load_u16 v1, v0, s[2:3] glc dlc
+; GFX11-NEXT:    s_waitcnt vmcnt(0)
+; GFX11-NEXT:    v_rsq_f16_e32 v1, v1
+; GFX11-NEXT:    global_store_b16 v0, v1, s[0:1]
+; GFX11-NEXT:    s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
+; GFX11-NEXT:    s_endpgm
 entry:
   %tid = call i32 @llvm.amdgcn.workitem.id.x()
   %tid.ext = sext i32 %tid to i64
@@ -161,15 +700,94 @@
   ret void
 }
 
-; GCN-LABEL: {{^}}v_rsq_f16_neg:
-; GFX8PLUS: {{flat|global}}_load_{{ushort|u16}} [[VAL:v[0-9]+]]
-; GFX8PLUS-NOT: [[VAL]]
-; GFX8PLUS: v_sqrt_f16_e32 [[SQRT:v[0-9]+]], [[VAL]]
-; GFX11-NEXT: s_waitcnt_depctr 0xfff
-; GFX8PLUS-NEXT: v_rcp_f16_e64 [[RESULT:v[0-9]+]], -[[SQRT]]
-; GFX8PLUS-NOT: [RESULT]]
-; GFX8PLUS: {{flat|global}}_store_{{short|b16}} v{{.+}}, [[RESULT]]
 define amdgpu_kernel void @v_rsq_f16_neg(ptr addrspace(1) %r, ptr addrspace(1) %b) #0 {
+; SI-LABEL: v_rsq_f16_neg:
+; SI:       ; %bb.0: ; %entry
+; SI-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x9
+; SI-NEXT:    s_mov_b32 s7, 0xf000
+; SI-NEXT:    s_mov_b32 s6, 0
+; SI-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; SI-NEXT:    v_mov_b32_e32 v1, 0
+; SI-NEXT:    s_waitcnt lgkmcnt(0)
+; SI-NEXT:    s_mov_b64 s[4:5], s[2:3]
+; SI-NEXT:    buffer_load_ushort v2, v[0:1], s[4:7], 0 addr64 glc
+; SI-NEXT:    s_waitcnt vmcnt(0)
+; SI-NEXT:    v_cvt_f32_f16_e32 v2, v2
+; SI-NEXT:    v_sqrt_f32_e32 v2, v2
+; SI-NEXT:    v_div_scale_f32 v3, s[2:3], v2, v2, -1.0
+; SI-NEXT:    v_rcp_f32_e32 v4, v3
+; SI-NEXT:    v_div_scale_f32 v5, vcc, -1.0, v2, -1.0
+; SI-NEXT:    s_setreg_imm32_b32 hwreg(HW_REG_MODE, 4, 2), 3
+; SI-NEXT:    v_fma_f32 v6, -v3, v4, 1.0
+; SI-NEXT:    v_fma_f32 v4, v6, v4, v4
+; SI-NEXT:    v_mul_f32_e32 v6, v5, v4
+; SI-NEXT:    v_fma_f32 v7, -v3, v6, v5
+; SI-NEXT:    v_fma_f32 v6, v7, v4, v6
+; SI-NEXT:    v_fma_f32 v3, -v3, v6, v5
+; SI-NEXT:    s_setreg_imm32_b32 hwreg(HW_REG_MODE, 4, 2), 0
+; SI-NEXT:    v_div_fmas_f32 v3, v3, v4, v6
+; SI-NEXT:    v_div_fixup_f32 v2, v3, v2, -1.0
+; SI-NEXT:    s_setreg_imm32_b32 hwreg(HW_REG_MODE, 2, 2), 0
+; SI-NEXT:    v_cvt_f16_f32_e32 v2, v2
+; SI-NEXT:    s_mov_b64 s[2:3], s[6:7]
+; SI-NEXT:    buffer_store_short v2, v[0:1], s[0:3], 0 addr64
+; SI-NEXT:    s_endpgm
+;
+; GFX8-LABEL: v_rsq_f16_neg:
+; GFX8:       ; %bb.0: ; %entry
+; GFX8-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
+; GFX8-NEXT:    v_lshlrev_b32_e32 v2, 1, v0
+; GFX8-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX8-NEXT:    v_mov_b32_e32 v1, s3
+; GFX8-NEXT:    v_add_u32_e32 v0, vcc, s2, v2
+; GFX8-NEXT:    v_addc_u32_e32 v1, vcc, 0, v1, vcc
+; GFX8-NEXT:    flat_load_ushort v0, v[0:1] glc
+; GFX8-NEXT:    s_waitcnt vmcnt(0)
+; GFX8-NEXT:    v_mov_b32_e32 v1, s1
+; GFX8-NEXT:    v_sqrt_f16_e32 v0, v0
+; GFX8-NEXT:    v_rcp_f16_e64 v3, -v0
+; GFX8-NEXT:    v_add_u32_e32 v0, vcc, s0, v2
+; GFX8-NEXT:    v_addc_u32_e32 v1, vcc, 0, v1, vcc
+; GFX8-NEXT:    flat_store_short v[0:1], v3
+; GFX8-NEXT:    s_endpgm
+;
+; GFX9-LABEL: v_rsq_f16_neg:
+; GFX9:       ; %bb.0: ; %entry
+; GFX9-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
+; GFX9-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX9-NEXT:    global_load_ushort v1, v0, s[2:3] glc
+; GFX9-NEXT:    s_waitcnt vmcnt(0)
+; GFX9-NEXT:    v_sqrt_f16_e32 v1, v1
+; GFX9-NEXT:    v_rcp_f16_e64 v1, -v1
+; GFX9-NEXT:    global_store_short v0, v1, s[0:1]
+; GFX9-NEXT:    s_endpgm
+;
+; GFX10-LABEL: v_rsq_f16_neg:
+; GFX10:       ; %bb.0: ; %entry
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
+; GFX10-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX10-NEXT:    global_load_ushort v1, v0, s[2:3] glc dlc
+; GFX10-NEXT:    s_waitcnt vmcnt(0)
+; GFX10-NEXT:    v_sqrt_f16_e32 v1, v1
+; GFX10-NEXT:    v_rcp_f16_e64 v1, -v1
+; GFX10-NEXT:    global_store_short v0, v1, s[0:1]
+; GFX10-NEXT:    s_endpgm
+;
+; GFX11-LABEL: v_rsq_f16_neg:
+; GFX11:       ; %bb.0: ; %entry
+; GFX11-NEXT:    s_load_b128 s[0:3], s[0:1], 0x24
+; GFX11-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX11-NEXT:    global_load_u16 v1, v0, s[2:3] glc dlc
+; GFX11-NEXT:    s_waitcnt vmcnt(0)
+; GFX11-NEXT:    v_sqrt_f16_e32 v1, v1
+; GFX11-NEXT:    s_waitcnt_depctr 0xfff
+; GFX11-NEXT:    v_rcp_f16_e64 v1, -v1
+; GFX11-NEXT:    global_store_b16 v0, v1, s[0:1]
+; GFX11-NEXT:    s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
+; GFX11-NEXT:    s_endpgm
 entry:
   %tid = call i32 @llvm.amdgcn.workitem.id.x()
   %tid.ext = sext i32 %tid to i64
@@ -182,15 +800,103 @@
   ret void
 }
 
-; GCN-LABEL: {{^}}v_fdiv_f16_afn:
-; GFX8PLUS: {{flat|global}}_load_{{ushort|u16}} [[LHS:v[0-9]+]]
-; GFX8PLUS: {{flat|global}}_load_{{ushort|u16}} [[RHS:v[0-9]+]]
-
-; GFX8PLUS: v_rcp_f16_e32 [[RCP:v[0-9]+]], [[RHS]]
-; GFX8PLUS: v_mul_f16_e32 [[RESULT:v[0-9]+]], [[LHS]], [[RCP]]
-
-; GFX8PLUS: {{flat|global}}_store_{{short|b16}} v{{.+}}, [[RESULT]]
 define amdgpu_kernel void @v_fdiv_f16_afn(ptr addrspace(1) %r, ptr addrspace(1) %a, ptr addrspace(1) %b) #0 {
+; SI-LABEL: v_fdiv_f16_afn:
+; SI:       ; %bb.0: ; %entry
+; SI-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x9
+; SI-NEXT:    s_load_dwordx2 s[8:9], s[0:1], 0xd
+; SI-NEXT:    s_mov_b32 s3, 0xf000
+; SI-NEXT:    s_mov_b32 s2, 0
+; SI-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; SI-NEXT:    s_waitcnt lgkmcnt(0)
+; SI-NEXT:    s_mov_b64 s[0:1], s[6:7]
+; SI-NEXT:    v_mov_b32_e32 v1, 0
+; SI-NEXT:    s_mov_b64 s[10:11], s[2:3]
+; SI-NEXT:    buffer_load_ushort v2, v[0:1], s[0:3], 0 addr64 glc
+; SI-NEXT:    s_waitcnt vmcnt(0)
+; SI-NEXT:    buffer_load_ushort v3, v[0:1], s[8:11], 0 addr64 glc
+; SI-NEXT:    s_waitcnt vmcnt(0)
+; SI-NEXT:    s_mov_b64 s[6:7], s[2:3]
+; SI-NEXT:    v_cvt_f32_f16_e32 v2, v2
+; SI-NEXT:    v_cvt_f32_f16_e32 v3, v3
+; SI-NEXT:    v_rcp_f32_e32 v3, v3
+; SI-NEXT:    v_mul_f32_e32 v2, v2, v3
+; SI-NEXT:    v_cvt_f16_f32_e32 v2, v2
+; SI-NEXT:    buffer_store_short v2, v[0:1], s[4:7], 0 addr64
+; SI-NEXT:    s_endpgm
+;
+; GFX8-LABEL: v_fdiv_f16_afn:
+; GFX8:       ; %bb.0: ; %entry
+; GFX8-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
+; GFX8-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x34
+; GFX8-NEXT:    v_lshlrev_b32_e32 v4, 1, v0
+; GFX8-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX8-NEXT:    v_mov_b32_e32 v1, s7
+; GFX8-NEXT:    v_add_u32_e32 v0, vcc, s6, v4
+; GFX8-NEXT:    v_addc_u32_e32 v1, vcc, 0, v1, vcc
+; GFX8-NEXT:    v_mov_b32_e32 v3, s1
+; GFX8-NEXT:    v_add_u32_e32 v2, vcc, s0, v4
+; GFX8-NEXT:    v_addc_u32_e32 v3, vcc, 0, v3, vcc
+; GFX8-NEXT:    flat_load_ushort v5, v[0:1] glc
+; GFX8-NEXT:    s_waitcnt vmcnt(0)
+; GFX8-NEXT:    flat_load_ushort v0, v[2:3] glc
+; GFX8-NEXT:    s_waitcnt vmcnt(0)
+; GFX8-NEXT:    v_mov_b32_e32 v1, s5
+; GFX8-NEXT:    v_rcp_f16_e32 v2, v0
+; GFX8-NEXT:    v_add_u32_e32 v0, vcc, s4, v4
+; GFX8-NEXT:    v_addc_u32_e32 v1, vcc, 0, v1, vcc
+; GFX8-NEXT:    v_mul_f16_e32 v2, v5, v2
+; GFX8-NEXT:    flat_store_short v[0:1], v2
+; GFX8-NEXT:    s_endpgm
+;
+; GFX9-LABEL: v_fdiv_f16_afn:
+; GFX9:       ; %bb.0: ; %entry
+; GFX9-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
+; GFX9-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x34
+; GFX9-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX9-NEXT:    global_load_ushort v1, v0, s[6:7] glc
+; GFX9-NEXT:    s_waitcnt vmcnt(0)
+; GFX9-NEXT:    global_load_ushort v2, v0, s[2:3] glc
+; GFX9-NEXT:    s_waitcnt vmcnt(0)
+; GFX9-NEXT:    v_rcp_f16_e32 v2, v2
+; GFX9-NEXT:    v_mul_f16_e32 v1, v1, v2
+; GFX9-NEXT:    global_store_short v0, v1, s[4:5]
+; GFX9-NEXT:    s_endpgm
+;
+; GFX10-LABEL: v_fdiv_f16_afn:
+; GFX10:       ; %bb.0: ; %entry
+; GFX10-NEXT:    s_clause 0x1
+; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
+; GFX10-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x34
+; GFX10-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX10-NEXT:    global_load_ushort v1, v0, s[6:7] glc dlc
+; GFX10-NEXT:    s_waitcnt vmcnt(0)
+; GFX10-NEXT:    global_load_ushort v2, v0, s[2:3] glc dlc
+; GFX10-NEXT:    s_waitcnt vmcnt(0)
+; GFX10-NEXT:    v_rcp_f16_e32 v2, v2
+; GFX10-NEXT:    v_mul_f16_e32 v1, v1, v2
+; GFX10-NEXT:    global_store_short v0, v1, s[4:5]
+; GFX10-NEXT:    s_endpgm
+;
+; GFX11-LABEL: v_fdiv_f16_afn:
+; GFX11:       ; %bb.0: ; %entry
+; GFX11-NEXT:    s_clause 0x1
+; GFX11-NEXT:    s_load_b128 s[4:7], s[0:1], 0x24
+; GFX11-NEXT:    s_load_b64 s[0:1], s[0:1], 0x34
+; GFX11-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX11-NEXT:    global_load_u16 v1, v0, s[6:7] glc dlc
+; GFX11-NEXT:    s_waitcnt vmcnt(0)
+; GFX11-NEXT:    global_load_u16 v2, v0, s[0:1] glc dlc
+; GFX11-NEXT:    s_waitcnt vmcnt(0)
+; GFX11-NEXT:    v_rcp_f16_e32 v2, v2
+; GFX11-NEXT:    s_waitcnt_depctr 0xfff
+; GFX11-NEXT:    v_mul_f16_e32 v1, v1, v2
+; GFX11-NEXT:    global_store_b16 v0, v1, s[4:5]
+; GFX11-NEXT:    s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
+; GFX11-NEXT:    s_endpgm
 entry:
   %tid = call i32 @llvm.amdgcn.workitem.id.x()
   %tid.ext = sext i32 %tid to i64
@@ -204,15 +910,103 @@
   ret void
 }
 
-; GCN-LABEL: {{^}}v_fdiv_f16_unsafe:
-; GFX8PLUS: {{flat|global}}_load_{{ushort|u16}} [[LHS:v[0-9]+]]
-; GFX8PLUS: {{flat|global}}_load_{{ushort|u16}} [[RHS:v[0-9]+]]
-
-; GFX8PLUS: v_rcp_f16_e32 [[RCP:v[0-9]+]], [[RHS]]
-; GFX8PLUS: v_mul_f16_e32 [[RESULT:v[0-9]+]], [[LHS]], [[RCP]]
-
-; GFX8PLUS: {{flat|global}}_store_{{short|b16}} v{{.+}}, [[RESULT]]
 define amdgpu_kernel void @v_fdiv_f16_unsafe(ptr addrspace(1) %r, ptr addrspace(1) %a, ptr addrspace(1) %b) #2 {
+; SI-LABEL: v_fdiv_f16_unsafe:
+; SI:       ; %bb.0: ; %entry
+; SI-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x9
+; SI-NEXT:    s_load_dwordx2 s[8:9], s[0:1], 0xd
+; SI-NEXT:    s_mov_b32 s3, 0xf000
+; SI-NEXT:    s_mov_b32 s2, 0
+; SI-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; SI-NEXT:    s_waitcnt lgkmcnt(0)
+; SI-NEXT:    s_mov_b64 s[0:1], s[6:7]
+; SI-NEXT:    v_mov_b32_e32 v1, 0
+; SI-NEXT:    s_mov_b64 s[10:11], s[2:3]
+; SI-NEXT:    buffer_load_ushort v2, v[0:1], s[0:3], 0 addr64 glc
+; SI-NEXT:    s_waitcnt vmcnt(0)
+; SI-NEXT:    buffer_load_ushort v3, v[0:1], s[8:11], 0 addr64 glc
+; SI-NEXT:    s_waitcnt vmcnt(0)
+; SI-NEXT:    s_mov_b64 s[6:7], s[2:3]
+; SI-NEXT:    v_cvt_f32_f16_e32 v2, v2
+; SI-NEXT:    v_cvt_f32_f16_e32 v3, v3
+; SI-NEXT:    v_rcp_f32_e32 v3, v3
+; SI-NEXT:    v_mul_f32_e32 v2, v2, v3
+; SI-NEXT:    v_cvt_f16_f32_e32 v2, v2
+; SI-NEXT:    buffer_store_short v2, v[0:1], s[4:7], 0 addr64
+; SI-NEXT:    s_endpgm
+;
+; GFX8-LABEL: v_fdiv_f16_unsafe:
+; GFX8:       ; %bb.0: ; %entry
+; GFX8-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
+; GFX8-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x34
+; GFX8-NEXT:    v_lshlrev_b32_e32 v4, 1, v0
+; GFX8-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX8-NEXT:    v_mov_b32_e32 v1, s7
+; GFX8-NEXT:    v_add_u32_e32 v0, vcc, s6, v4
+; GFX8-NEXT:    v_addc_u32_e32 v1, vcc, 0, v1, vcc
+; GFX8-NEXT:    v_mov_b32_e32 v3, s1
+; GFX8-NEXT:    v_add_u32_e32 v2, vcc, s0, v4
+; GFX8-NEXT:    v_addc_u32_e32 v3, vcc, 0, v3, vcc
+; GFX8-NEXT:    flat_load_ushort v5, v[0:1] glc
+; GFX8-NEXT:    s_waitcnt vmcnt(0)
+; GFX8-NEXT:    flat_load_ushort v0, v[2:3] glc
+; GFX8-NEXT:    s_waitcnt vmcnt(0)
+; GFX8-NEXT:    v_mov_b32_e32 v1, s5
+; GFX8-NEXT:    v_rcp_f16_e32 v2, v0
+; GFX8-NEXT:    v_add_u32_e32 v0, vcc, s4, v4
+; GFX8-NEXT:    v_addc_u32_e32 v1, vcc, 0, v1, vcc
+; GFX8-NEXT:    v_mul_f16_e32 v2, v5, v2
+; GFX8-NEXT:    flat_store_short v[0:1], v2
+; GFX8-NEXT:    s_endpgm
+;
+; GFX9-LABEL: v_fdiv_f16_unsafe:
+; GFX9:       ; %bb.0: ; %entry
+; GFX9-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
+; GFX9-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x34
+; GFX9-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX9-NEXT:    global_load_ushort v1, v0, s[6:7] glc
+; GFX9-NEXT:    s_waitcnt vmcnt(0)
+; GFX9-NEXT:    global_load_ushort v2, v0, s[2:3] glc
+; GFX9-NEXT:    s_waitcnt vmcnt(0)
+; GFX9-NEXT:    v_rcp_f16_e32 v2, v2
+; GFX9-NEXT:    v_mul_f16_e32 v1, v1, v2
+; GFX9-NEXT:    global_store_short v0, v1, s[4:5]
+; GFX9-NEXT:    s_endpgm
+;
+; GFX10-LABEL: v_fdiv_f16_unsafe:
+; GFX10:       ; %bb.0: ; %entry
+; GFX10-NEXT:    s_clause 0x1
+; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
+; GFX10-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x34
+; GFX10-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX10-NEXT:    global_load_ushort v1, v0, s[6:7] glc dlc
+; GFX10-NEXT:    s_waitcnt vmcnt(0)
+; GFX10-NEXT:    global_load_ushort v2, v0, s[2:3] glc dlc
+; GFX10-NEXT:    s_waitcnt vmcnt(0)
+; GFX10-NEXT:    v_rcp_f16_e32 v2, v2
+; GFX10-NEXT:    v_mul_f16_e32 v1, v1, v2
+; GFX10-NEXT:    global_store_short v0, v1, s[4:5]
+; GFX10-NEXT:    s_endpgm
+;
+; GFX11-LABEL: v_fdiv_f16_unsafe:
+; GFX11:       ; %bb.0: ; %entry
+; GFX11-NEXT:    s_clause 0x1
+; GFX11-NEXT:    s_load_b128 s[4:7], s[0:1], 0x24
+; GFX11-NEXT:    s_load_b64 s[0:1], s[0:1], 0x34
+; GFX11-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
+; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX11-NEXT:    global_load_u16 v1, v0, s[6:7] glc dlc
+; GFX11-NEXT:    s_waitcnt vmcnt(0)
+; GFX11-NEXT:    global_load_u16 v2, v0, s[0:1] glc dlc
+; GFX11-NEXT:    s_waitcnt vmcnt(0)
+; GFX11-NEXT:    v_rcp_f16_e32 v2, v2
+; GFX11-NEXT:    s_waitcnt_depctr 0xfff
+; GFX11-NEXT:    v_mul_f16_e32 v1, v1, v2
+; GFX11-NEXT:    global_store_b16 v0, v1, s[4:5]
+; GFX11-NEXT:    s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
+; GFX11-NEXT:    s_endpgm
 entry:
   %tid = call i32 @llvm.amdgcn.workitem.id.x()
   %tid.ext = sext i32 %tid to i64
@@ -226,60 +1020,300 @@
   ret void
 }
 
-; GCN-LABEL: {{^}}div_afn_2_x_pat_f16:
-; SI: v_mul_f32_e32 v{{[0-9]+}}, 0.5, v{{[0-9]+}}
-
-; GFX8PLUS: v_mul_f16_e32 [[MUL:v[0-9]+]], 0.5, v{{[0-9]+}}
-; GFX8PLUS: {{flat|global}}_store_{{short|b16}} v{{.*}}, [[MUL]]
 define amdgpu_kernel void @div_afn_2_x_pat_f16(ptr addrspace(1) %out) #0 {
+; SI-LABEL: div_afn_2_x_pat_f16:
+; SI:       ; %bb.0:
+; SI-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x9
+; SI-NEXT:    s_mov_b32 s3, 0xf000
+; SI-NEXT:    s_mov_b32 s2, -1
+; SI-NEXT:    s_waitcnt lgkmcnt(0)
+; SI-NEXT:    buffer_load_ushort v0, off, s[0:3], 0
+; SI-NEXT:    s_waitcnt vmcnt(0)
+; SI-NEXT:    v_cvt_f32_f16_e32 v0, v0
+; SI-NEXT:    v_mul_f32_e32 v0, 0.5, v0
+; SI-NEXT:    v_cvt_f16_f32_e32 v0, v0
+; SI-NEXT:    buffer_store_short v0, off, s[0:3], 0
+; SI-NEXT:    s_endpgm
+;
+; GFX8-LABEL: div_afn_2_x_pat_f16:
+; GFX8:       ; %bb.0:
+; GFX8-NEXT:    flat_load_ushort v0, v[0:1]
+; GFX8-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x24
+; GFX8-NEXT:    s_waitcnt vmcnt(0)
+; GFX8-NEXT:    v_mul_f16_e32 v2, 0.5, v0
+; GFX8-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX8-NEXT:    v_mov_b32_e32 v0, s0
+; GFX8-NEXT:    v_mov_b32_e32 v1, s1
+; GFX8-NEXT:    flat_store_short v[0:1], v2
+; GFX8-NEXT:    s_endpgm
+;
+; GFX9-LABEL: div_afn_2_x_pat_f16:
+; GFX9:       ; %bb.0:
+; GFX9-NEXT:    global_load_ushort v0, v[0:1], off
+; GFX9-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x24
+; GFX9-NEXT:    v_mov_b32_e32 v1, 0
+; GFX9-NEXT:    s_waitcnt vmcnt(0)
+; GFX9-NEXT:    v_mul_f16_e32 v0, 0.5, v0
+; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX9-NEXT:    global_store_short v1, v0, s[0:1]
+; GFX9-NEXT:    s_endpgm
+;
+; GFX10-LABEL: div_afn_2_x_pat_f16:
+; GFX10:       ; %bb.0:
+; GFX10-NEXT:    global_load_ushort v0, v[0:1], off
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x24
+; GFX10-NEXT:    v_mov_b32_e32 v1, 0
+; GFX10-NEXT:    s_waitcnt vmcnt(0)
+; GFX10-NEXT:    v_mul_f16_e32 v0, 0.5, v0
+; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX10-NEXT:    global_store_short v1, v0, s[0:1]
+; GFX10-NEXT:    s_endpgm
+;
+; GFX11-LABEL: div_afn_2_x_pat_f16:
+; GFX11:       ; %bb.0:
+; GFX11-NEXT:    global_load_u16 v0, v[0:1], off
+; GFX11-NEXT:    s_load_b64 s[0:1], s[0:1], 0x24
+; GFX11-NEXT:    v_mov_b32_e32 v1, 0
+; GFX11-NEXT:    s_waitcnt vmcnt(0)
+; GFX11-NEXT:    v_mul_f16_e32 v0, 0.5, v0
+; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX11-NEXT:    global_store_b16 v1, v0, s[0:1]
+; GFX11-NEXT:    s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
+; GFX11-NEXT:    s_endpgm
   %x = load half, ptr addrspace(1) undef
   %rcp = fdiv afn half %x, 2.0
   store half %rcp, ptr addrspace(1) %out, align 4
   ret void
 }
 
-; GCN-LABEL: {{^}}div_afn_k_x_pat_f16:
-; SI: v_mul_f32_e32 v{{[0-9]+}}, 0x3dcccccd, v{{[0-9]+}}
-
-; GFX8PLUS: v_mul_f16_e32 [[MUL:v[0-9]+]], 0x2e66, v{{[0-9]+}}
-; GFX8PLUS: {{flat|global}}_store_{{short|b16}} v{{.*}}, [[MUL]]
 define amdgpu_kernel void @div_afn_k_x_pat_f16(ptr addrspace(1) %out) #0 {
+; SI-LABEL: div_afn_k_x_pat_f16:
+; SI:       ; %bb.0:
+; SI-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x9
+; SI-NEXT:    s_mov_b32 s3, 0xf000
+; SI-NEXT:    s_mov_b32 s2, -1
+; SI-NEXT:    s_waitcnt lgkmcnt(0)
+; SI-NEXT:    buffer_load_ushort v0, off, s[0:3], 0
+; SI-NEXT:    s_waitcnt vmcnt(0)
+; SI-NEXT:    v_cvt_f32_f16_e32 v0, v0
+; SI-NEXT:    v_mul_f32_e32 v0, 0x3dcccccd, v0
+; SI-NEXT:    v_cvt_f16_f32_e32 v0, v0
+; SI-NEXT:    buffer_store_short v0, off, s[0:3], 0
+; SI-NEXT:    s_endpgm
+;
+; GFX8-LABEL: div_afn_k_x_pat_f16:
+; GFX8:       ; %bb.0:
+; GFX8-NEXT:    flat_load_ushort v0, v[0:1]
+; GFX8-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x24
+; GFX8-NEXT:    s_waitcnt vmcnt(0)
+; GFX8-NEXT:    v_mul_f16_e32 v2, 0x2e66, v0
+; GFX8-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX8-NEXT:    v_mov_b32_e32 v0, s0
+; GFX8-NEXT:    v_mov_b32_e32 v1, s1
+; GFX8-NEXT:    flat_store_short v[0:1], v2
+; GFX8-NEXT:    s_endpgm
+;
+; GFX9-LABEL: div_afn_k_x_pat_f16:
+; GFX9:       ; %bb.0:
+; GFX9-NEXT:    global_load_ushort v0, v[0:1], off
+; GFX9-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x24
+; GFX9-NEXT:    v_mov_b32_e32 v1, 0
+; GFX9-NEXT:    s_waitcnt vmcnt(0)
+; GFX9-NEXT:    v_mul_f16_e32 v0, 0x2e66, v0
+; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX9-NEXT:    global_store_short v1, v0, s[0:1]
+; GFX9-NEXT:    s_endpgm
+;
+; GFX10-LABEL: div_afn_k_x_pat_f16:
+; GFX10:       ; %bb.0:
+; GFX10-NEXT:    global_load_ushort v0, v[0:1], off
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x24
+; GFX10-NEXT:    v_mov_b32_e32 v1, 0
+; GFX10-NEXT:    s_waitcnt vmcnt(0)
+; GFX10-NEXT:    v_mul_f16_e32 v0, 0x2e66, v0
+; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX10-NEXT:    global_store_short v1, v0, s[0:1]
+; GFX10-NEXT:    s_endpgm
+;
+; GFX11-LABEL: div_afn_k_x_pat_f16:
+; GFX11:       ; %bb.0:
+; GFX11-NEXT:    global_load_u16 v0, v[0:1], off
+; GFX11-NEXT:    s_load_b64 s[0:1], s[0:1], 0x24
+; GFX11-NEXT:    v_mov_b32_e32 v1, 0
+; GFX11-NEXT:    s_waitcnt vmcnt(0)
+; GFX11-NEXT:    v_mul_f16_e32 v0, 0x2e66, v0
+; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX11-NEXT:    global_store_b16 v1, v0, s[0:1]
+; GFX11-NEXT:    s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
+; GFX11-NEXT:    s_endpgm
   %x = load half, ptr addrspace(1) undef
   %rcp = fdiv afn half %x, 10.0
   store half %rcp, ptr addrspace(1) %out, align 4
   ret void
 }
 
-; GCN-LABEL: {{^}}div_afn_neg_k_x_pat_f16:
-; SI: v_mul_f32_e32 v{{[0-9]+}}, 0xbdcccccd, v{{[0-9]+}}
-
-; GFX8PLUS: v_mul_f16_e32 [[MUL:v[0-9]+]], 0xae66, v{{[0-9]+}}
-; GFX8PLUS: {{flat|global}}_store_{{short|b16}} v{{.*}}, [[MUL]]
 define amdgpu_kernel void @div_afn_neg_k_x_pat_f16(ptr addrspace(1) %out) #0 {
+; SI-LABEL: div_afn_neg_k_x_pat_f16:
+; SI:       ; %bb.0:
+; SI-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x9
+; SI-NEXT:    s_mov_b32 s3, 0xf000
+; SI-NEXT:    s_mov_b32 s2, -1
+; SI-NEXT:    s_waitcnt lgkmcnt(0)
+; SI-NEXT:    buffer_load_ushort v0, off, s[0:3], 0
+; SI-NEXT:    s_waitcnt vmcnt(0)
+; SI-NEXT:    v_cvt_f32_f16_e32 v0, v0
+; SI-NEXT:    v_mul_f32_e32 v0, 0xbdcccccd, v0
+; SI-NEXT:    v_cvt_f16_f32_e32 v0, v0
+; SI-NEXT:    buffer_store_short v0, off, s[0:3], 0
+; SI-NEXT:    s_endpgm
+;
+; GFX8-LABEL: div_afn_neg_k_x_pat_f16:
+; GFX8:       ; %bb.0:
+; GFX8-NEXT:    flat_load_ushort v0, v[0:1]
+; GFX8-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x24
+; GFX8-NEXT:    s_waitcnt vmcnt(0)
+; GFX8-NEXT:    v_mul_f16_e32 v2, 0xae66, v0
+; GFX8-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX8-NEXT:    v_mov_b32_e32 v0, s0
+; GFX8-NEXT:    v_mov_b32_e32 v1, s1
+; GFX8-NEXT:    flat_store_short v[0:1], v2
+; GFX8-NEXT:    s_endpgm
+;
+; GFX9-LABEL: div_afn_neg_k_x_pat_f16:
+; GFX9:       ; %bb.0:
+; GFX9-NEXT:    global_load_ushort v0, v[0:1], off
+; GFX9-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x24
+; GFX9-NEXT:    v_mov_b32_e32 v1, 0
+; GFX9-NEXT:    s_waitcnt vmcnt(0)
+; GFX9-NEXT:    v_mul_f16_e32 v0, 0xae66, v0
+; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX9-NEXT:    global_store_short v1, v0, s[0:1]
+; GFX9-NEXT:    s_endpgm
+;
+; GFX10-LABEL: div_afn_neg_k_x_pat_f16:
+; GFX10:       ; %bb.0:
+; GFX10-NEXT:    global_load_ushort v0, v[0:1], off
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x24
+; GFX10-NEXT:    v_mov_b32_e32 v1, 0
+; GFX10-NEXT:    s_waitcnt vmcnt(0)
+; GFX10-NEXT:    v_mul_f16_e32 v0, 0xae66, v0
+; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX10-NEXT:    global_store_short v1, v0, s[0:1]
+; GFX10-NEXT:    s_endpgm
+;
+; GFX11-LABEL: div_afn_neg_k_x_pat_f16:
+; GFX11:       ; %bb.0:
+; GFX11-NEXT:    global_load_u16 v0, v[0:1], off
+; GFX11-NEXT:    s_load_b64 s[0:1], s[0:1], 0x24
+; GFX11-NEXT:    v_mov_b32_e32 v1, 0
+; GFX11-NEXT:    s_waitcnt vmcnt(0)
+; GFX11-NEXT:    v_mul_f16_e32 v0, 0xae66, v0
+; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX11-NEXT:    global_store_b16 v1, v0, s[0:1]
+; GFX11-NEXT:    s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
+; GFX11-NEXT:    s_endpgm
   %x = load half, ptr addrspace(1) undef
   %rcp = fdiv afn half %x, -10.0
   store half %rcp, ptr addrspace(1) %out, align 4
   ret void
 }
 
-; GCN-LABEL: {{^}}v_fdiv_f16_arcp:
-; SI: v_rcp_f32
-; SI: v_mul_f32
-
-; GFX8PLUS: v_rcp_f16
-; GFX8PLUS: v_mul_f16
 define half @v_fdiv_f16_arcp(half %x, half %y) {
+; SI-LABEL: v_fdiv_f16_arcp:
+; SI:       ; %bb.0:
+; SI-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; SI-NEXT:    s_setreg_imm32_b32 hwreg(HW_REG_MODE, 2, 2), 0
+; SI-NEXT:    v_cvt_f16_f32_e32 v1, v1
+; SI-NEXT:    v_cvt_f16_f32_e32 v0, v0
+; SI-NEXT:    v_cvt_f32_f16_e32 v1, v1
+; SI-NEXT:    v_cvt_f32_f16_e32 v0, v0
+; SI-NEXT:    v_div_scale_f32 v2, s[4:5], v1, v1, v0
+; SI-NEXT:    v_rcp_f32_e32 v3, v2
+; SI-NEXT:    v_div_scale_f32 v4, vcc, v0, v1, v0
+; SI-NEXT:    s_setreg_imm32_b32 hwreg(HW_REG_MODE, 4, 2), 3
+; SI-NEXT:    v_fma_f32 v5, -v2, v3, 1.0
+; SI-NEXT:    v_fma_f32 v3, v5, v3, v3
+; SI-NEXT:    v_mul_f32_e32 v5, v4, v3
+; SI-NEXT:    v_fma_f32 v6, -v2, v5, v4
+; SI-NEXT:    v_fma_f32 v5, v6, v3, v5
+; SI-NEXT:    v_fma_f32 v2, -v2, v5, v4
+; SI-NEXT:    s_setreg_imm32_b32 hwreg(HW_REG_MODE, 4, 2), 0
+; SI-NEXT:    v_div_fmas_f32 v2, v2, v3, v5
+; SI-NEXT:    v_div_fixup_f32 v0, v2, v1, v0
+; SI-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX8-LABEL: v_fdiv_f16_arcp:
+; GFX8:       ; %bb.0:
+; GFX8-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX8-NEXT:    v_rcp_f16_e32 v1, v1
+; GFX8-NEXT:    v_mul_f16_e32 v0, v0, v1
+; GFX8-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX9-LABEL: v_fdiv_f16_arcp:
+; GFX9:       ; %bb.0:
+; GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-NEXT:    v_rcp_f16_e32 v1, v1
+; GFX9-NEXT:    v_mul_f16_e32 v0, v0, v1
+; GFX9-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-LABEL: v_fdiv_f16_arcp:
+; GFX10:       ; %bb.0:
+; GFX10-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-NEXT:    v_rcp_f16_e32 v1, v1
+; GFX10-NEXT:    v_mul_f16_e32 v0, v0, v1
+; GFX10-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX11-LABEL: v_fdiv_f16_arcp:
+; GFX11:       ; %bb.0:
+; GFX11-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX11-NEXT:    v_rcp_f16_e32 v1, v1
+; GFX11-NEXT:    s_waitcnt_depctr 0xfff
+; GFX11-NEXT:    v_mul_f16_e32 v0, v0, v1
+; GFX11-NEXT:    s_setpc_b64 s[30:31]
   %fdiv = fdiv arcp half %x, %y
   ret half %fdiv
 }
 
-; GCN-LABEL: {{^}}v_fdiv_f16_afn_nsz:
-; SI: v_rcp_f32
-; SI: v_mul_f32
-
-; GFX8PLUS: v_rcp_f16
-; GFX8PLUS: v_mul_f16
 define half @v_fdiv_f16_afn_nsz(half %x, half %y) {
+; SI-LABEL: v_fdiv_f16_afn_nsz:
+; SI:       ; %bb.0:
+; SI-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; SI-NEXT:    v_cvt_f16_f32_e32 v1, v1
+; SI-NEXT:    v_cvt_f16_f32_e32 v0, v0
+; SI-NEXT:    v_cvt_f32_f16_e32 v1, v1
+; SI-NEXT:    v_cvt_f32_f16_e32 v0, v0
+; SI-NEXT:    v_rcp_f32_e32 v1, v1
+; SI-NEXT:    v_mul_f32_e32 v0, v0, v1
+; SI-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX8-LABEL: v_fdiv_f16_afn_nsz:
+; GFX8:       ; %bb.0:
+; GFX8-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX8-NEXT:    v_rcp_f16_e32 v1, v1
+; GFX8-NEXT:    v_mul_f16_e32 v0, v0, v1
+; GFX8-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX9-LABEL: v_fdiv_f16_afn_nsz:
+; GFX9:       ; %bb.0:
+; GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX9-NEXT:    v_rcp_f16_e32 v1, v1
+; GFX9-NEXT:    v_mul_f16_e32 v0, v0, v1
+; GFX9-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX10-LABEL: v_fdiv_f16_afn_nsz:
+; GFX10:       ; %bb.0:
+; GFX10-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX10-NEXT:    v_rcp_f16_e32 v1, v1
+; GFX10-NEXT:    v_mul_f16_e32 v0, v0, v1
+; GFX10-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX11-LABEL: v_fdiv_f16_afn_nsz:
+; GFX11:       ; %bb.0:
+; GFX11-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX11-NEXT:    v_rcp_f16_e32 v1, v1
+; GFX11-NEXT:    s_waitcnt_depctr 0xfff
+; GFX11-NEXT:    v_mul_f16_e32 v0, v0, v1
+; GFX11-NEXT:    s_setpc_b64 s[30:31]
   %fdiv = fdiv afn nsz half %x, %y
   ret half %fdiv
 }