test/CodeGen/AMDGPU/llvm.amdgcn.reduce.fsub.ll - llvm-project/llvm - Git at Google

 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 6
 ; RUN: llc -mtriple=amdgcn -mcpu=tonga -global-isel=0 < %s | FileCheck  -check-prefixes=GFX8DAGISEL %s
 ; RUN: llc -mtriple=amdgcn -mcpu=tonga -global-isel=1 < %s | FileCheck  -check-prefixes=GFX8GISEL %s
 ; RUN: llc -mtriple=amdgcn -mcpu=gfx900 -global-isel=0 < %s | FileCheck  -check-prefixes=GFX9DAGISEL %s
 ; RUN: llc -mtriple=amdgcn -mcpu=gfx900 -global-isel=1 < %s | FileCheck  -check-prefixes=GFX9GISEL %s
 ; RUN: llc -mtriple=amdgcn -mcpu=gfx1010 -global-isel=0 -mattr=+wavefrontsize64 < %s | FileCheck -check-prefixes=GFX10DAGISEL,GFX1064DAGISEL %s
 ; RUN: llc -mtriple=amdgcn -mcpu=gfx1010 -global-isel=1 -mattr=+wavefrontsize64 < %s | FileCheck -check-prefixes=GFX10GISEL,GFX1064GISEL %s
 ; RUN: llc -mtriple=amdgcn -mcpu=gfx1010 -global-isel=0 < %s | FileCheck -check-prefixes=GFX10DAGISEL,GFX1032DAGISEL %s
 ; RUN: llc -mtriple=amdgcn -mcpu=gfx1010 -global-isel=1 < %s | FileCheck -check-prefixes=GFX10GISEL,GFX1032GISEL %s
 ; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -global-isel=0 -mattr=+wavefrontsize64 < %s | FileCheck -check-prefixes=GFX11DAGISEL,GFX1164DAGISEL %s
 ; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -global-isel=1 -mattr=+wavefrontsize64 < %s | FileCheck -check-prefixes=GFX11GISEL,GFX1164GISEL %s
 ; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -global-isel=0 < %s | FileCheck -check-prefixes=GFX11DAGISEL,GFX1132DAGISEL %s
 ; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -global-isel=1 < %s | FileCheck -check-prefixes=GFX11GISEL,GFX1132GISEL %s
 ; RUN: llc -mtriple=amdgcn -mcpu=gfx1200 -global-isel=0 < %s | FileCheck -check-prefixes=GFX12DAGISEL %s


 define amdgpu_kernel void @uniform_value_float(ptr addrspace(1) %out, float %in) {
 ; GFX8DAGISEL-LABEL: uniform_value_float:
 ; GFX8DAGISEL:       ; %bb.0: ; %entry
 ; GFX8DAGISEL-NEXT:    s_mov_b64 s[0:1], exec
 ; GFX8DAGISEL-NEXT:    s_load_dword s2, s[4:5], 0x2c
 ; GFX8DAGISEL-NEXT:    s_bcnt1_i32_b64 s0, s[0:1]
 ; GFX8DAGISEL-NEXT:    v_cvt_f32_i32_e32 v0, s0
 ; GFX8DAGISEL-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x24
 ; GFX8DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX8DAGISEL-NEXT:    v_mul_f32_e64 v0, -s2, v0
 ; GFX8DAGISEL-NEXT:    v_readfirstlane_b32 s2, v0
 ; GFX8DAGISEL-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX8DAGISEL-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX8DAGISEL-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX8DAGISEL-NEXT:    flat_store_dword v[0:1], v2
 ; GFX8DAGISEL-NEXT:    s_endpgm
 ;
 ; GFX8GISEL-LABEL: uniform_value_float:
 ; GFX8GISEL:       ; %bb.0: ; %entry
 ; GFX8GISEL-NEXT:    s_mov_b64 s[0:1], exec
 ; GFX8GISEL-NEXT:    s_load_dword s2, s[4:5], 0x2c
 ; GFX8GISEL-NEXT:    s_bcnt1_i32_b64 s0, s[0:1]
 ; GFX8GISEL-NEXT:    v_cvt_f32_i32_e32 v0, s0
 ; GFX8GISEL-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x24
 ; GFX8GISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX8GISEL-NEXT:    v_mul_f32_e64 v0, -s2, v0
 ; GFX8GISEL-NEXT:    v_readfirstlane_b32 s2, v0
 ; GFX8GISEL-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX8GISEL-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX8GISEL-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX8GISEL-NEXT:    flat_store_dword v[0:1], v2
 ; GFX8GISEL-NEXT:    s_endpgm
 ;
 ; GFX9DAGISEL-LABEL: uniform_value_float:
 ; GFX9DAGISEL:       ; %bb.0: ; %entry
 ; GFX9DAGISEL-NEXT:    s_mov_b64 s[0:1], exec
 ; GFX9DAGISEL-NEXT:    s_load_dword s2, s[4:5], 0x2c
 ; GFX9DAGISEL-NEXT:    s_bcnt1_i32_b64 s0, s[0:1]
 ; GFX9DAGISEL-NEXT:    v_cvt_f32_i32_e32 v0, s0
 ; GFX9DAGISEL-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x24
 ; GFX9DAGISEL-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX9DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX9DAGISEL-NEXT:    v_mul_f32_e64 v0, -s2, v0
 ; GFX9DAGISEL-NEXT:    v_readfirstlane_b32 s2, v0
 ; GFX9DAGISEL-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX9DAGISEL-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX9DAGISEL-NEXT:    s_endpgm
 ;
 ; GFX9GISEL-LABEL: uniform_value_float:
 ; GFX9GISEL:       ; %bb.0: ; %entry
 ; GFX9GISEL-NEXT:    s_mov_b64 s[0:1], exec
 ; GFX9GISEL-NEXT:    s_load_dword s2, s[4:5], 0x2c
 ; GFX9GISEL-NEXT:    s_bcnt1_i32_b64 s0, s[0:1]
 ; GFX9GISEL-NEXT:    v_cvt_f32_i32_e32 v0, s0
 ; GFX9GISEL-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x24
 ; GFX9GISEL-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX9GISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX9GISEL-NEXT:    v_mul_f32_e64 v0, -s2, v0
 ; GFX9GISEL-NEXT:    v_readfirstlane_b32 s2, v0
 ; GFX9GISEL-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX9GISEL-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX9GISEL-NEXT:    s_endpgm
 ;
 ; GFX1064DAGISEL-LABEL: uniform_value_float:
 ; GFX1064DAGISEL:       ; %bb.0: ; %entry
 ; GFX1064DAGISEL-NEXT:    s_load_dword s2, s[4:5], 0x2c
 ; GFX1064DAGISEL-NEXT:    s_mov_b64 s[0:1], exec
 ; GFX1064DAGISEL-NEXT:    s_bcnt1_i32_b64 s3, s[0:1]
 ; GFX1064DAGISEL-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x24
 ; GFX1064DAGISEL-NEXT:    v_cvt_f32_i32_e32 v0, s3
 ; GFX1064DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1064DAGISEL-NEXT:    v_mul_f32_e64 v0, -s2, v0
 ; GFX1064DAGISEL-NEXT:    v_readfirstlane_b32 s2, v0
 ; GFX1064DAGISEL-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX1064DAGISEL-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX1064DAGISEL-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX1064DAGISEL-NEXT:    s_endpgm
 ;
 ; GFX1064GISEL-LABEL: uniform_value_float:
 ; GFX1064GISEL:       ; %bb.0: ; %entry
 ; GFX1064GISEL-NEXT:    s_load_dword s2, s[4:5], 0x2c
 ; GFX1064GISEL-NEXT:    s_mov_b64 s[0:1], exec
 ; GFX1064GISEL-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX1064GISEL-NEXT:    s_bcnt1_i32_b64 s0, s[0:1]
 ; GFX1064GISEL-NEXT:    v_cvt_f32_i32_e32 v0, s0
 ; GFX1064GISEL-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x24
 ; GFX1064GISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1064GISEL-NEXT:    v_mul_f32_e64 v0, -s2, v0
 ; GFX1064GISEL-NEXT:    v_readfirstlane_b32 s2, v0
 ; GFX1064GISEL-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX1064GISEL-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX1064GISEL-NEXT:    s_endpgm
 ;
 ; GFX1032DAGISEL-LABEL: uniform_value_float:
 ; GFX1032DAGISEL:       ; %bb.0: ; %entry
 ; GFX1032DAGISEL-NEXT:    s_load_dword s2, s[4:5], 0x2c
 ; GFX1032DAGISEL-NEXT:    s_mov_b32 s0, exec_lo
 ; GFX1032DAGISEL-NEXT:    s_bcnt1_i32_b32 s3, s0
 ; GFX1032DAGISEL-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x24
 ; GFX1032DAGISEL-NEXT:    v_cvt_f32_i32_e32 v0, s3
 ; GFX1032DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1032DAGISEL-NEXT:    v_mul_f32_e64 v0, -s2, v0
 ; GFX1032DAGISEL-NEXT:    v_readfirstlane_b32 s2, v0
 ; GFX1032DAGISEL-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX1032DAGISEL-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX1032DAGISEL-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX1032DAGISEL-NEXT:    s_endpgm
 ;
 ; GFX1032GISEL-LABEL: uniform_value_float:
 ; GFX1032GISEL:       ; %bb.0: ; %entry
 ; GFX1032GISEL-NEXT:    s_load_dword s2, s[4:5], 0x2c
 ; GFX1032GISEL-NEXT:    s_mov_b32 s0, exec_lo
 ; GFX1032GISEL-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX1032GISEL-NEXT:    s_bcnt1_i32_b32 s0, s0
 ; GFX1032GISEL-NEXT:    v_cvt_f32_i32_e32 v0, s0
 ; GFX1032GISEL-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x24
 ; GFX1032GISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1032GISEL-NEXT:    v_mul_f32_e64 v0, -s2, v0
 ; GFX1032GISEL-NEXT:    v_readfirstlane_b32 s2, v0
 ; GFX1032GISEL-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX1032GISEL-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX1032GISEL-NEXT:    s_endpgm
 ;
 ; GFX1164DAGISEL-LABEL: uniform_value_float:
 ; GFX1164DAGISEL:       ; %bb.0: ; %entry
 ; GFX1164DAGISEL-NEXT:    s_load_b32 s2, s[4:5], 0x2c
 ; GFX1164DAGISEL-NEXT:    s_mov_b64 s[0:1], exec
 ; GFX1164DAGISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | instskip(SKIP_3) | instid1(VALU_DEP_1)
 ; GFX1164DAGISEL-NEXT:    s_bcnt1_i32_b64 s3, s[0:1]
 ; GFX1164DAGISEL-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
 ; GFX1164DAGISEL-NEXT:    v_cvt_f32_i32_e32 v0, s3
 ; GFX1164DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1164DAGISEL-NEXT:    v_mul_f32_e64 v0, -s2, v0
 ; GFX1164DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1) | instskip(SKIP_1) | instid1(VALU_DEP_2)
 ; GFX1164DAGISEL-NEXT:    v_readfirstlane_b32 s2, v0
 ; GFX1164DAGISEL-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX1164DAGISEL-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX1164DAGISEL-NEXT:    global_store_b32 v0, v1, s[0:1]
 ; GFX1164DAGISEL-NEXT:    s_endpgm
 ;
 ; GFX1164GISEL-LABEL: uniform_value_float:
 ; GFX1164GISEL:       ; %bb.0: ; %entry
 ; GFX1164GISEL-NEXT:    s_load_b32 s2, s[4:5], 0x2c
 ; GFX1164GISEL-NEXT:    s_mov_b64 s[0:1], exec
 ; GFX1164GISEL-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX1164GISEL-NEXT:    s_bcnt1_i32_b64 s0, s[0:1]
 ; GFX1164GISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | instskip(SKIP_2) | instid1(VALU_DEP_1)
 ; GFX1164GISEL-NEXT:    v_cvt_f32_i32_e32 v0, s0
 ; GFX1164GISEL-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
 ; GFX1164GISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1164GISEL-NEXT:    v_mul_f32_e64 v0, -s2, v0
 ; GFX1164GISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1) | instskip(NEXT) | instid1(VALU_DEP_1)
 ; GFX1164GISEL-NEXT:    v_readfirstlane_b32 s2, v0
 ; GFX1164GISEL-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX1164GISEL-NEXT:    global_store_b32 v1, v0, s[0:1]
 ; GFX1164GISEL-NEXT:    s_endpgm
 ;
 ; GFX1132DAGISEL-LABEL: uniform_value_float:
 ; GFX1132DAGISEL:       ; %bb.0: ; %entry
 ; GFX1132DAGISEL-NEXT:    s_load_b32 s2, s[4:5], 0x2c
 ; GFX1132DAGISEL-NEXT:    s_mov_b32 s0, exec_lo
 ; GFX1132DAGISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | instskip(SKIP_3) | instid1(VALU_DEP_1)
 ; GFX1132DAGISEL-NEXT:    s_bcnt1_i32_b32 s3, s0
 ; GFX1132DAGISEL-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
 ; GFX1132DAGISEL-NEXT:    v_cvt_f32_i32_e32 v0, s3
 ; GFX1132DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1132DAGISEL-NEXT:    v_mul_f32_e64 v0, -s2, v0
 ; GFX1132DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1) | instskip(NEXT) | instid1(VALU_DEP_1)
 ; GFX1132DAGISEL-NEXT:    v_readfirstlane_b32 s2, v0
 ; GFX1132DAGISEL-NEXT:    v_dual_mov_b32 v0, 0 :: v_dual_mov_b32 v1, s2
 ; GFX1132DAGISEL-NEXT:    global_store_b32 v0, v1, s[0:1]
 ; GFX1132DAGISEL-NEXT:    s_endpgm
 ;
 ; GFX1132GISEL-LABEL: uniform_value_float:
 ; GFX1132GISEL:       ; %bb.0: ; %entry
 ; GFX1132GISEL-NEXT:    s_load_b32 s2, s[4:5], 0x2c
 ; GFX1132GISEL-NEXT:    s_mov_b32 s0, exec_lo
 ; GFX1132GISEL-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX1132GISEL-NEXT:    s_bcnt1_i32_b32 s0, s0
 ; GFX1132GISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | instskip(SKIP_2) | instid1(VALU_DEP_1)
 ; GFX1132GISEL-NEXT:    v_cvt_f32_i32_e32 v0, s0
 ; GFX1132GISEL-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
 ; GFX1132GISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1132GISEL-NEXT:    v_mul_f32_e64 v0, -s2, v0
 ; GFX1132GISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1) | instskip(NEXT) | instid1(VALU_DEP_1)
 ; GFX1132GISEL-NEXT:    v_readfirstlane_b32 s2, v0
 ; GFX1132GISEL-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX1132GISEL-NEXT:    global_store_b32 v1, v0, s[0:1]
 ; GFX1132GISEL-NEXT:    s_endpgm
 ;
 ; GFX12DAGISEL-LABEL: uniform_value_float:
 ; GFX12DAGISEL:       ; %bb.0: ; %entry
 ; GFX12DAGISEL-NEXT:    s_load_b96 s[0:2], s[4:5], 0x24
 ; GFX12DAGISEL-NEXT:    s_mov_b32 s3, exec_lo
 ; GFX12DAGISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | instskip(NEXT) | instid1(SALU_CYCLE_1)
 ; GFX12DAGISEL-NEXT:    s_bcnt1_i32_b32 s3, s3
 ; GFX12DAGISEL-NEXT:    v_cvt_f32_i32_e32 v0, s3
 ; GFX12DAGISEL-NEXT:    s_wait_kmcnt 0x0
 ; GFX12DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1) | instskip(NEXT) | instid1(VALU_DEP_1)
 ; GFX12DAGISEL-NEXT:    v_mul_f32_e64 v0, -s2, v0
 ; GFX12DAGISEL-NEXT:    v_readfirstlane_b32 s2, v0
 ; GFX12DAGISEL-NEXT:    s_wait_alu depctr_va_sdst(0)
 ; GFX12DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1)
 ; GFX12DAGISEL-NEXT:    v_dual_mov_b32 v0, 0 :: v_dual_mov_b32 v1, s2
 ; GFX12DAGISEL-NEXT:    global_store_b32 v0, v1, s[0:1]
 ; GFX12DAGISEL-NEXT:    s_endpgm
 entry:
   %result = call float @llvm.amdgcn.wave.reduce.fsub(float %in, i32 1)
   store float %result, ptr addrspace(1) %out
   ret void
 }

 define void @divergent_value_float(ptr addrspace(1) %out, float %id.x) {
 ; GFX8DAGISEL-LABEL: divergent_value_float:
 ; GFX8DAGISEL:       ; %bb.0: ; %entry
 ; GFX8DAGISEL-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
 ; GFX8DAGISEL-NEXT:    s_mov_b64 s[4:5], exec
 ; GFX8DAGISEL-NEXT:    s_mov_b32 s6, 0
 ; GFX8DAGISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
 ; GFX8DAGISEL-NEXT:    s_ff1_i32_b64 s7, s[4:5]
 ; GFX8DAGISEL-NEXT:    v_readlane_b32 s8, v2, s7
 ; GFX8DAGISEL-NEXT:    v_mov_b32_e32 v3, s8
 ; GFX8DAGISEL-NEXT:    s_bitset0_b64 s[4:5], s7
 ; GFX8DAGISEL-NEXT:    v_sub_f32_e32 v3, s6, v3
 ; GFX8DAGISEL-NEXT:    s_cmp_lg_u64 s[4:5], 0
 ; GFX8DAGISEL-NEXT:    v_readfirstlane_b32 s6, v3
 ; GFX8DAGISEL-NEXT:    s_cbranch_scc1 .LBB1_1
 ; GFX8DAGISEL-NEXT:  ; %bb.2:
 ; GFX8DAGISEL-NEXT:    v_mov_b32_e32 v2, s6
 ; GFX8DAGISEL-NEXT:    flat_store_dword v[0:1], v2
 ; GFX8DAGISEL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX8DAGISEL-NEXT:    s_setpc_b64 s[30:31]
 ;
 ; GFX8GISEL-LABEL: divergent_value_float:
 ; GFX8GISEL:       ; %bb.0: ; %entry
 ; GFX8GISEL-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
 ; GFX8GISEL-NEXT:    s_mov_b64 s[4:5], exec
 ; GFX8GISEL-NEXT:    s_mov_b32 s6, 0
 ; GFX8GISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
 ; GFX8GISEL-NEXT:    s_ff1_i32_b64 s7, s[4:5]
 ; GFX8GISEL-NEXT:    v_readlane_b32 s8, v2, s7
 ; GFX8GISEL-NEXT:    v_mov_b32_e32 v3, s8
 ; GFX8GISEL-NEXT:    s_bitset0_b64 s[4:5], s7
 ; GFX8GISEL-NEXT:    v_sub_f32_e32 v3, s6, v3
 ; GFX8GISEL-NEXT:    s_cmp_lg_u64 s[4:5], 0
 ; GFX8GISEL-NEXT:    v_readfirstlane_b32 s6, v3
 ; GFX8GISEL-NEXT:    s_cbranch_scc1 .LBB1_1
 ; GFX8GISEL-NEXT:  ; %bb.2:
 ; GFX8GISEL-NEXT:    v_mov_b32_e32 v2, s6
 ; GFX8GISEL-NEXT:    flat_store_dword v[0:1], v2
 ; GFX8GISEL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX8GISEL-NEXT:    s_setpc_b64 s[30:31]
 ;
 ; GFX9DAGISEL-LABEL: divergent_value_float:
 ; GFX9DAGISEL:       ; %bb.0: ; %entry
 ; GFX9DAGISEL-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
 ; GFX9DAGISEL-NEXT:    s_mov_b64 s[4:5], exec
 ; GFX9DAGISEL-NEXT:    s_mov_b32 s6, 0
 ; GFX9DAGISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
 ; GFX9DAGISEL-NEXT:    s_ff1_i32_b64 s7, s[4:5]
 ; GFX9DAGISEL-NEXT:    v_readlane_b32 s8, v2, s7
 ; GFX9DAGISEL-NEXT:    v_mov_b32_e32 v3, s8
 ; GFX9DAGISEL-NEXT:    s_bitset0_b64 s[4:5], s7
 ; GFX9DAGISEL-NEXT:    v_sub_f32_e32 v3, s6, v3
 ; GFX9DAGISEL-NEXT:    s_cmp_lg_u64 s[4:5], 0
 ; GFX9DAGISEL-NEXT:    v_readfirstlane_b32 s6, v3
 ; GFX9DAGISEL-NEXT:    s_cbranch_scc1 .LBB1_1
 ; GFX9DAGISEL-NEXT:  ; %bb.2:
 ; GFX9DAGISEL-NEXT:    v_mov_b32_e32 v2, s6
 ; GFX9DAGISEL-NEXT:    global_store_dword v[0:1], v2, off
 ; GFX9DAGISEL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX9DAGISEL-NEXT:    s_setpc_b64 s[30:31]
 ;
 ; GFX9GISEL-LABEL: divergent_value_float:
 ; GFX9GISEL:       ; %bb.0: ; %entry
 ; GFX9GISEL-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
 ; GFX9GISEL-NEXT:    s_mov_b64 s[4:5], exec
 ; GFX9GISEL-NEXT:    s_mov_b32 s6, 0
 ; GFX9GISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
 ; GFX9GISEL-NEXT:    s_ff1_i32_b64 s7, s[4:5]
 ; GFX9GISEL-NEXT:    v_readlane_b32 s8, v2, s7
 ; GFX9GISEL-NEXT:    v_mov_b32_e32 v3, s8
 ; GFX9GISEL-NEXT:    s_bitset0_b64 s[4:5], s7
 ; GFX9GISEL-NEXT:    v_sub_f32_e32 v3, s6, v3
 ; GFX9GISEL-NEXT:    s_cmp_lg_u64 s[4:5], 0
 ; GFX9GISEL-NEXT:    v_readfirstlane_b32 s6, v3
 ; GFX9GISEL-NEXT:    s_cbranch_scc1 .LBB1_1
 ; GFX9GISEL-NEXT:  ; %bb.2:
 ; GFX9GISEL-NEXT:    v_mov_b32_e32 v2, s6
 ; GFX9GISEL-NEXT:    global_store_dword v[0:1], v2, off
 ; GFX9GISEL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX9GISEL-NEXT:    s_setpc_b64 s[30:31]
 ;
 ; GFX1064DAGISEL-LABEL: divergent_value_float:
 ; GFX1064DAGISEL:       ; %bb.0: ; %entry
 ; GFX1064DAGISEL-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
 ; GFX1064DAGISEL-NEXT:    s_mov_b64 s[4:5], exec
 ; GFX1064DAGISEL-NEXT:    s_mov_b32 s6, 0
 ; GFX1064DAGISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
 ; GFX1064DAGISEL-NEXT:    s_ff1_i32_b64 s7, s[4:5]
 ; GFX1064DAGISEL-NEXT:    v_readlane_b32 s8, v2, s7
 ; GFX1064DAGISEL-NEXT:    s_bitset0_b64 s[4:5], s7
 ; GFX1064DAGISEL-NEXT:    s_cmp_lg_u64 s[4:5], 0
 ; GFX1064DAGISEL-NEXT:    v_sub_f32_e64 v3, s6, s8
 ; GFX1064DAGISEL-NEXT:    v_readfirstlane_b32 s6, v3
 ; GFX1064DAGISEL-NEXT:    s_cbranch_scc1 .LBB1_1
 ; GFX1064DAGISEL-NEXT:  ; %bb.2:
 ; GFX1064DAGISEL-NEXT:    v_mov_b32_e32 v2, s6
 ; GFX1064DAGISEL-NEXT:    global_store_dword v[0:1], v2, off
 ; GFX1064DAGISEL-NEXT:    s_setpc_b64 s[30:31]
 ;
 ; GFX1064GISEL-LABEL: divergent_value_float:
 ; GFX1064GISEL:       ; %bb.0: ; %entry
 ; GFX1064GISEL-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
 ; GFX1064GISEL-NEXT:    s_mov_b64 s[4:5], exec
 ; GFX1064GISEL-NEXT:    s_mov_b32 s6, 0
 ; GFX1064GISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
 ; GFX1064GISEL-NEXT:    s_ff1_i32_b64 s7, s[4:5]
 ; GFX1064GISEL-NEXT:    v_readlane_b32 s8, v2, s7
 ; GFX1064GISEL-NEXT:    s_bitset0_b64 s[4:5], s7
 ; GFX1064GISEL-NEXT:    s_cmp_lg_u64 s[4:5], 0
 ; GFX1064GISEL-NEXT:    v_sub_f32_e64 v3, s6, s8
 ; GFX1064GISEL-NEXT:    v_readfirstlane_b32 s6, v3
 ; GFX1064GISEL-NEXT:    s_cbranch_scc1 .LBB1_1
 ; GFX1064GISEL-NEXT:  ; %bb.2:
 ; GFX1064GISEL-NEXT:    v_mov_b32_e32 v2, s6
 ; GFX1064GISEL-NEXT:    global_store_dword v[0:1], v2, off
 ; GFX1064GISEL-NEXT:    s_setpc_b64 s[30:31]
 ;
 ; GFX1032DAGISEL-LABEL: divergent_value_float:
 ; GFX1032DAGISEL:       ; %bb.0: ; %entry
 ; GFX1032DAGISEL-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
 ; GFX1032DAGISEL-NEXT:    s_mov_b32 s4, exec_lo
 ; GFX1032DAGISEL-NEXT:    s_mov_b32 s5, 0
 ; GFX1032DAGISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
 ; GFX1032DAGISEL-NEXT:    s_ff1_i32_b32 s6, s4
 ; GFX1032DAGISEL-NEXT:    v_readlane_b32 s7, v2, s6
 ; GFX1032DAGISEL-NEXT:    s_bitset0_b32 s4, s6
 ; GFX1032DAGISEL-NEXT:    s_cmp_lg_u32 s4, 0
 ; GFX1032DAGISEL-NEXT:    v_sub_f32_e64 v3, s5, s7
 ; GFX1032DAGISEL-NEXT:    v_readfirstlane_b32 s5, v3
 ; GFX1032DAGISEL-NEXT:    s_cbranch_scc1 .LBB1_1
 ; GFX1032DAGISEL-NEXT:  ; %bb.2:
 ; GFX1032DAGISEL-NEXT:    v_mov_b32_e32 v2, s5
 ; GFX1032DAGISEL-NEXT:    global_store_dword v[0:1], v2, off
 ; GFX1032DAGISEL-NEXT:    s_setpc_b64 s[30:31]
 ;
 ; GFX1032GISEL-LABEL: divergent_value_float:
 ; GFX1032GISEL:       ; %bb.0: ; %entry
 ; GFX1032GISEL-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
 ; GFX1032GISEL-NEXT:    s_mov_b32 s4, exec_lo
 ; GFX1032GISEL-NEXT:    s_mov_b32 s5, 0
 ; GFX1032GISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
 ; GFX1032GISEL-NEXT:    s_ff1_i32_b32 s6, s4
 ; GFX1032GISEL-NEXT:    v_readlane_b32 s7, v2, s6
 ; GFX1032GISEL-NEXT:    s_bitset0_b32 s4, s6
 ; GFX1032GISEL-NEXT:    s_cmp_lg_u32 s4, 0
 ; GFX1032GISEL-NEXT:    v_sub_f32_e64 v3, s5, s7
 ; GFX1032GISEL-NEXT:    v_readfirstlane_b32 s5, v3
 ; GFX1032GISEL-NEXT:    s_cbranch_scc1 .LBB1_1
 ; GFX1032GISEL-NEXT:  ; %bb.2:
 ; GFX1032GISEL-NEXT:    v_mov_b32_e32 v2, s5
 ; GFX1032GISEL-NEXT:    global_store_dword v[0:1], v2, off
 ; GFX1032GISEL-NEXT:    s_setpc_b64 s[30:31]
 ;
 ; GFX1164DAGISEL-LABEL: divergent_value_float:
 ; GFX1164DAGISEL:       ; %bb.0: ; %entry
 ; GFX1164DAGISEL-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
 ; GFX1164DAGISEL-NEXT:    s_mov_b64 s[0:1], exec
 ; GFX1164DAGISEL-NEXT:    s_mov_b32 s2, 0
 ; GFX1164DAGISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
 ; GFX1164DAGISEL-NEXT:    s_ctz_i32_b64 s3, s[0:1]
 ; GFX1164DAGISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | instskip(SKIP_1) | instid1(SALU_CYCLE_1)
 ; GFX1164DAGISEL-NEXT:    v_readlane_b32 s4, v2, s3
 ; GFX1164DAGISEL-NEXT:    s_bitset0_b64 s[0:1], s3
 ; GFX1164DAGISEL-NEXT:    s_cmp_lg_u64 s[0:1], 0
 ; GFX1164DAGISEL-NEXT:    v_sub_f32_e64 v3, s2, s4
 ; GFX1164DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1)
 ; GFX1164DAGISEL-NEXT:    v_readfirstlane_b32 s2, v3
 ; GFX1164DAGISEL-NEXT:    s_cbranch_scc1 .LBB1_1
 ; GFX1164DAGISEL-NEXT:  ; %bb.2:
 ; GFX1164DAGISEL-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX1164DAGISEL-NEXT:    global_store_b32 v[0:1], v2, off
 ; GFX1164DAGISEL-NEXT:    s_setpc_b64 s[30:31]
 ;
 ; GFX1164GISEL-LABEL: divergent_value_float:
 ; GFX1164GISEL:       ; %bb.0: ; %entry
 ; GFX1164GISEL-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
 ; GFX1164GISEL-NEXT:    s_mov_b64 s[0:1], exec
 ; GFX1164GISEL-NEXT:    s_mov_b32 s2, 0
 ; GFX1164GISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
 ; GFX1164GISEL-NEXT:    s_ctz_i32_b64 s3, s[0:1]
 ; GFX1164GISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | instskip(SKIP_1) | instid1(SALU_CYCLE_1)
 ; GFX1164GISEL-NEXT:    v_readlane_b32 s4, v2, s3
 ; GFX1164GISEL-NEXT:    s_bitset0_b64 s[0:1], s3
 ; GFX1164GISEL-NEXT:    s_cmp_lg_u64 s[0:1], 0
 ; GFX1164GISEL-NEXT:    v_sub_f32_e64 v3, s2, s4
 ; GFX1164GISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1)
 ; GFX1164GISEL-NEXT:    v_readfirstlane_b32 s2, v3
 ; GFX1164GISEL-NEXT:    s_cbranch_scc1 .LBB1_1
 ; GFX1164GISEL-NEXT:  ; %bb.2:
 ; GFX1164GISEL-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX1164GISEL-NEXT:    global_store_b32 v[0:1], v2, off
 ; GFX1164GISEL-NEXT:    s_setpc_b64 s[30:31]
 ;
 ; GFX1132DAGISEL-LABEL: divergent_value_float:
 ; GFX1132DAGISEL:       ; %bb.0: ; %entry
 ; GFX1132DAGISEL-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
 ; GFX1132DAGISEL-NEXT:    s_mov_b32 s0, exec_lo
 ; GFX1132DAGISEL-NEXT:    s_mov_b32 s1, 0
 ; GFX1132DAGISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
 ; GFX1132DAGISEL-NEXT:    s_ctz_i32_b32 s2, s0
 ; GFX1132DAGISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | instskip(SKIP_1) | instid1(SALU_CYCLE_1)
 ; GFX1132DAGISEL-NEXT:    v_readlane_b32 s3, v2, s2
 ; GFX1132DAGISEL-NEXT:    s_bitset0_b32 s0, s2
 ; GFX1132DAGISEL-NEXT:    s_cmp_lg_u32 s0, 0
 ; GFX1132DAGISEL-NEXT:    v_sub_f32_e64 v3, s1, s3
 ; GFX1132DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1)
 ; GFX1132DAGISEL-NEXT:    v_readfirstlane_b32 s1, v3
 ; GFX1132DAGISEL-NEXT:    s_cbranch_scc1 .LBB1_1
 ; GFX1132DAGISEL-NEXT:  ; %bb.2:
 ; GFX1132DAGISEL-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX1132DAGISEL-NEXT:    global_store_b32 v[0:1], v2, off
 ; GFX1132DAGISEL-NEXT:    s_setpc_b64 s[30:31]
 ;
 ; GFX1132GISEL-LABEL: divergent_value_float:
 ; GFX1132GISEL:       ; %bb.0: ; %entry
 ; GFX1132GISEL-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
 ; GFX1132GISEL-NEXT:    s_mov_b32 s0, exec_lo
 ; GFX1132GISEL-NEXT:    s_mov_b32 s1, 0
 ; GFX1132GISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
 ; GFX1132GISEL-NEXT:    s_ctz_i32_b32 s2, s0
 ; GFX1132GISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | instskip(SKIP_1) | instid1(SALU_CYCLE_1)
 ; GFX1132GISEL-NEXT:    v_readlane_b32 s3, v2, s2
 ; GFX1132GISEL-NEXT:    s_bitset0_b32 s0, s2
 ; GFX1132GISEL-NEXT:    s_cmp_lg_u32 s0, 0
 ; GFX1132GISEL-NEXT:    v_sub_f32_e64 v3, s1, s3
 ; GFX1132GISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1)
 ; GFX1132GISEL-NEXT:    v_readfirstlane_b32 s1, v3
 ; GFX1132GISEL-NEXT:    s_cbranch_scc1 .LBB1_1
 ; GFX1132GISEL-NEXT:  ; %bb.2:
 ; GFX1132GISEL-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX1132GISEL-NEXT:    global_store_b32 v[0:1], v2, off
 ; GFX1132GISEL-NEXT:    s_setpc_b64 s[30:31]
 ;
 ; GFX12DAGISEL-LABEL: divergent_value_float:
 ; GFX12DAGISEL:       ; %bb.0: ; %entry
 ; GFX12DAGISEL-NEXT:    s_wait_loadcnt_dscnt 0x0
 ; GFX12DAGISEL-NEXT:    s_wait_expcnt 0x0
 ; GFX12DAGISEL-NEXT:    s_wait_samplecnt 0x0
 ; GFX12DAGISEL-NEXT:    s_wait_bvhcnt 0x0
 ; GFX12DAGISEL-NEXT:    s_wait_kmcnt 0x0
 ; GFX12DAGISEL-NEXT:    s_mov_b32 s0, exec_lo
 ; GFX12DAGISEL-NEXT:    s_mov_b32 s1, 0
 ; GFX12DAGISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
 ; GFX12DAGISEL-NEXT:    s_wait_alu depctr_sa_sdst(0)
 ; GFX12DAGISEL-NEXT:    s_ctz_i32_b32 s2, s0
 ; GFX12DAGISEL-NEXT:    s_wait_alu depctr_sa_sdst(0)
 ; GFX12DAGISEL-NEXT:    v_readlane_b32 s3, v2, s2
 ; GFX12DAGISEL-NEXT:    s_bitset0_b32 s0, s2
 ; GFX12DAGISEL-NEXT:    s_wait_alu depctr_sa_sdst(0)
 ; GFX12DAGISEL-NEXT:    s_cmp_lg_u32 s0, 0
 ; GFX12DAGISEL-NEXT:    v_sub_f32_e64 v3, s1, s3
 ; GFX12DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1)
 ; GFX12DAGISEL-NEXT:    v_readfirstlane_b32 s1, v3
 ; GFX12DAGISEL-NEXT:    s_cbranch_scc1 .LBB1_1
 ; GFX12DAGISEL-NEXT:  ; %bb.2:
 ; GFX12DAGISEL-NEXT:    s_wait_alu depctr_va_sdst(0)
 ; GFX12DAGISEL-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX12DAGISEL-NEXT:    global_store_b32 v[0:1], v2, off
 ; GFX12DAGISEL-NEXT:    s_setpc_b64 s[30:31]
 entry:
   %result = call float @llvm.amdgcn.wave.reduce.fsub(float %id.x, i32 1)
   store float %result, ptr addrspace(1) %out
   ret void
 }

 define amdgpu_kernel void @divergent_cfg_float(ptr addrspace(1) %out, float %in, float %in2) {
 ; GFX8DAGISEL-LABEL: divergent_cfg_float:
 ; GFX8DAGISEL:       ; %bb.0: ; %entry
 ; GFX8DAGISEL-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x2c
 ; GFX8DAGISEL-NEXT:    v_cmp_lt_u32_e32 vcc, 15, v0
 ; GFX8DAGISEL-NEXT:    ; implicit-def: $sgpr6
 ; GFX8DAGISEL-NEXT:    s_and_saveexec_b64 s[2:3], vcc
 ; GFX8DAGISEL-NEXT:    s_xor_b64 s[2:3], exec, s[2:3]
 ; GFX8DAGISEL-NEXT:    s_cbranch_execz .LBB2_2
 ; GFX8DAGISEL-NEXT:  ; %bb.1: ; %else
 ; GFX8DAGISEL-NEXT:    s_mov_b64 s[6:7], exec
 ; GFX8DAGISEL-NEXT:    s_bcnt1_i32_b64 s6, s[6:7]
 ; GFX8DAGISEL-NEXT:    v_cvt_f32_i32_e32 v0, s6
 ; GFX8DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX8DAGISEL-NEXT:    v_mul_f32_e64 v0, -s0, v0
 ; GFX8DAGISEL-NEXT:    v_readfirstlane_b32 s6, v0
 ; GFX8DAGISEL-NEXT:  .LBB2_2: ; %Flow
 ; GFX8DAGISEL-NEXT:    s_or_saveexec_b64 s[2:3], s[2:3]
 ; GFX8DAGISEL-NEXT:    v_mov_b32_e32 v0, s6
 ; GFX8DAGISEL-NEXT:    s_xor_b64 exec, exec, s[2:3]
 ; GFX8DAGISEL-NEXT:    s_cbranch_execz .LBB2_4
 ; GFX8DAGISEL-NEXT:  ; %bb.3: ; %if
 ; GFX8DAGISEL-NEXT:    s_mov_b64 s[6:7], exec
 ; GFX8DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX8DAGISEL-NEXT:    s_bcnt1_i32_b64 s0, s[6:7]
 ; GFX8DAGISEL-NEXT:    v_cvt_f32_i32_e32 v0, s0
 ; GFX8DAGISEL-NEXT:    v_mul_f32_e64 v0, -s1, v0
 ; GFX8DAGISEL-NEXT:    v_readfirstlane_b32 s0, v0
 ; GFX8DAGISEL-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX8DAGISEL-NEXT:  .LBB2_4: ; %endif
 ; GFX8DAGISEL-NEXT:    s_or_b64 exec, exec, s[2:3]
 ; GFX8DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX8DAGISEL-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x24
 ; GFX8DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX8DAGISEL-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX8DAGISEL-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX8DAGISEL-NEXT:    flat_store_dword v[1:2], v0
 ; GFX8DAGISEL-NEXT:    s_endpgm
 ;
 ; GFX8GISEL-LABEL: divergent_cfg_float:
 ; GFX8GISEL:       ; %bb.0: ; %entry
 ; GFX8GISEL-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x2c
 ; GFX8GISEL-NEXT:    v_cmp_le_u32_e32 vcc, 16, v0
 ; GFX8GISEL-NEXT:    ; implicit-def: $sgpr6
 ; GFX8GISEL-NEXT:    s_and_saveexec_b64 s[2:3], vcc
 ; GFX8GISEL-NEXT:    s_xor_b64 s[2:3], exec, s[2:3]
 ; GFX8GISEL-NEXT:    s_cbranch_execz .LBB2_2
 ; GFX8GISEL-NEXT:  ; %bb.1: ; %else
 ; GFX8GISEL-NEXT:    s_mov_b64 s[6:7], exec
 ; GFX8GISEL-NEXT:    s_bcnt1_i32_b64 s6, s[6:7]
 ; GFX8GISEL-NEXT:    v_cvt_f32_i32_e32 v0, s6
 ; GFX8GISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX8GISEL-NEXT:    v_mul_f32_e64 v0, -s0, v0
 ; GFX8GISEL-NEXT:    v_readfirstlane_b32 s6, v0
 ; GFX8GISEL-NEXT:  .LBB2_2: ; %Flow
 ; GFX8GISEL-NEXT:    s_andn2_saveexec_b64 s[2:3], s[2:3]
 ; GFX8GISEL-NEXT:    s_cbranch_execz .LBB2_4
 ; GFX8GISEL-NEXT:  ; %bb.3: ; %if
 ; GFX8GISEL-NEXT:    s_mov_b64 s[6:7], exec
 ; GFX8GISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX8GISEL-NEXT:    s_bcnt1_i32_b64 s0, s[6:7]
 ; GFX8GISEL-NEXT:    v_cvt_f32_i32_e32 v0, s0
 ; GFX8GISEL-NEXT:    v_mul_f32_e64 v0, -s1, v0
 ; GFX8GISEL-NEXT:    v_readfirstlane_b32 s6, v0
 ; GFX8GISEL-NEXT:  .LBB2_4: ; %endif
 ; GFX8GISEL-NEXT:    s_or_b64 exec, exec, s[2:3]
 ; GFX8GISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX8GISEL-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x24
 ; GFX8GISEL-NEXT:    v_mov_b32_e32 v2, s6
 ; GFX8GISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX8GISEL-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX8GISEL-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX8GISEL-NEXT:    flat_store_dword v[0:1], v2
 ; GFX8GISEL-NEXT:    s_endpgm
 ;
 ; GFX9DAGISEL-LABEL: divergent_cfg_float:
 ; GFX9DAGISEL:       ; %bb.0: ; %entry
 ; GFX9DAGISEL-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x2c
 ; GFX9DAGISEL-NEXT:    v_cmp_lt_u32_e32 vcc, 15, v0
 ; GFX9DAGISEL-NEXT:    ; implicit-def: $sgpr6
 ; GFX9DAGISEL-NEXT:    s_and_saveexec_b64 s[2:3], vcc
 ; GFX9DAGISEL-NEXT:    s_xor_b64 s[2:3], exec, s[2:3]
 ; GFX9DAGISEL-NEXT:    s_cbranch_execz .LBB2_2
 ; GFX9DAGISEL-NEXT:  ; %bb.1: ; %else
 ; GFX9DAGISEL-NEXT:    s_mov_b64 s[6:7], exec
 ; GFX9DAGISEL-NEXT:    s_bcnt1_i32_b64 s6, s[6:7]
 ; GFX9DAGISEL-NEXT:    v_cvt_f32_i32_e32 v0, s6
 ; GFX9DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX9DAGISEL-NEXT:    v_mul_f32_e64 v0, -s0, v0
 ; GFX9DAGISEL-NEXT:    v_readfirstlane_b32 s6, v0
 ; GFX9DAGISEL-NEXT:  .LBB2_2: ; %Flow
 ; GFX9DAGISEL-NEXT:    s_or_saveexec_b64 s[2:3], s[2:3]
 ; GFX9DAGISEL-NEXT:    v_mov_b32_e32 v0, s6
 ; GFX9DAGISEL-NEXT:    s_xor_b64 exec, exec, s[2:3]
 ; GFX9DAGISEL-NEXT:    s_cbranch_execz .LBB2_4
 ; GFX9DAGISEL-NEXT:  ; %bb.3: ; %if
 ; GFX9DAGISEL-NEXT:    s_mov_b64 s[6:7], exec
 ; GFX9DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX9DAGISEL-NEXT:    s_bcnt1_i32_b64 s0, s[6:7]
 ; GFX9DAGISEL-NEXT:    v_cvt_f32_i32_e32 v0, s0
 ; GFX9DAGISEL-NEXT:    v_mul_f32_e64 v0, -s1, v0
 ; GFX9DAGISEL-NEXT:    v_readfirstlane_b32 s0, v0
 ; GFX9DAGISEL-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX9DAGISEL-NEXT:  .LBB2_4: ; %endif
 ; GFX9DAGISEL-NEXT:    s_or_b64 exec, exec, s[2:3]
 ; GFX9DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX9DAGISEL-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x24
 ; GFX9DAGISEL-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX9DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX9DAGISEL-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX9DAGISEL-NEXT:    s_endpgm
 ;
 ; GFX9GISEL-LABEL: divergent_cfg_float:
 ; GFX9GISEL:       ; %bb.0: ; %entry
 ; GFX9GISEL-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x2c
 ; GFX9GISEL-NEXT:    v_cmp_le_u32_e32 vcc, 16, v0
 ; GFX9GISEL-NEXT:    ; implicit-def: $sgpr6
 ; GFX9GISEL-NEXT:    s_and_saveexec_b64 s[2:3], vcc
 ; GFX9GISEL-NEXT:    s_xor_b64 s[2:3], exec, s[2:3]
 ; GFX9GISEL-NEXT:    s_cbranch_execz .LBB2_2
 ; GFX9GISEL-NEXT:  ; %bb.1: ; %else
 ; GFX9GISEL-NEXT:    s_mov_b64 s[6:7], exec
 ; GFX9GISEL-NEXT:    s_bcnt1_i32_b64 s6, s[6:7]
 ; GFX9GISEL-NEXT:    v_cvt_f32_i32_e32 v0, s6
 ; GFX9GISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX9GISEL-NEXT:    v_mul_f32_e64 v0, -s0, v0
 ; GFX9GISEL-NEXT:    v_readfirstlane_b32 s6, v0
 ; GFX9GISEL-NEXT:  .LBB2_2: ; %Flow
 ; GFX9GISEL-NEXT:    s_andn2_saveexec_b64 s[2:3], s[2:3]
 ; GFX9GISEL-NEXT:    s_cbranch_execz .LBB2_4
 ; GFX9GISEL-NEXT:  ; %bb.3: ; %if
 ; GFX9GISEL-NEXT:    s_mov_b64 s[6:7], exec
 ; GFX9GISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX9GISEL-NEXT:    s_bcnt1_i32_b64 s0, s[6:7]
 ; GFX9GISEL-NEXT:    v_cvt_f32_i32_e32 v0, s0
 ; GFX9GISEL-NEXT:    v_mul_f32_e64 v0, -s1, v0
 ; GFX9GISEL-NEXT:    v_readfirstlane_b32 s6, v0
 ; GFX9GISEL-NEXT:  .LBB2_4: ; %endif
 ; GFX9GISEL-NEXT:    s_or_b64 exec, exec, s[2:3]
 ; GFX9GISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX9GISEL-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x24
 ; GFX9GISEL-NEXT:    v_mov_b32_e32 v0, s6
 ; GFX9GISEL-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX9GISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX9GISEL-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX9GISEL-NEXT:    s_endpgm
 ;
 ; GFX1064DAGISEL-LABEL: divergent_cfg_float:
 ; GFX1064DAGISEL:       ; %bb.0: ; %entry
 ; GFX1064DAGISEL-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x2c
 ; GFX1064DAGISEL-NEXT:    v_cmp_lt_u32_e32 vcc, 15, v0
 ; GFX1064DAGISEL-NEXT:    ; implicit-def: $sgpr6
 ; GFX1064DAGISEL-NEXT:    s_and_saveexec_b64 s[2:3], vcc
 ; GFX1064DAGISEL-NEXT:    s_xor_b64 s[2:3], exec, s[2:3]
 ; GFX1064DAGISEL-NEXT:    s_cbranch_execz .LBB2_2
 ; GFX1064DAGISEL-NEXT:  ; %bb.1: ; %else
 ; GFX1064DAGISEL-NEXT:    s_mov_b64 s[6:7], exec
 ; GFX1064DAGISEL-NEXT:    s_bcnt1_i32_b64 s6, s[6:7]
 ; GFX1064DAGISEL-NEXT:    v_cvt_f32_i32_e32 v0, s6
 ; GFX1064DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1064DAGISEL-NEXT:    v_mul_f32_e64 v0, -s0, v0
 ; GFX1064DAGISEL-NEXT:    v_readfirstlane_b32 s6, v0
 ; GFX1064DAGISEL-NEXT:  .LBB2_2: ; %Flow
 ; GFX1064DAGISEL-NEXT:    s_or_saveexec_b64 s[2:3], s[2:3]
 ; GFX1064DAGISEL-NEXT:    v_mov_b32_e32 v0, s6
 ; GFX1064DAGISEL-NEXT:    s_xor_b64 exec, exec, s[2:3]
 ; GFX1064DAGISEL-NEXT:    s_cbranch_execz .LBB2_4
 ; GFX1064DAGISEL-NEXT:  ; %bb.3: ; %if
 ; GFX1064DAGISEL-NEXT:    s_mov_b64 s[6:7], exec
 ; GFX1064DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1064DAGISEL-NEXT:    s_bcnt1_i32_b64 s0, s[6:7]
 ; GFX1064DAGISEL-NEXT:    v_cvt_f32_i32_e32 v0, s0
 ; GFX1064DAGISEL-NEXT:    v_mul_f32_e64 v0, -s1, v0
 ; GFX1064DAGISEL-NEXT:    v_readfirstlane_b32 s0, v0
 ; GFX1064DAGISEL-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX1064DAGISEL-NEXT:  .LBB2_4: ; %endif
 ; GFX1064DAGISEL-NEXT:    s_or_b64 exec, exec, s[2:3]
 ; GFX1064DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1064DAGISEL-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x24
 ; GFX1064DAGISEL-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX1064DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1064DAGISEL-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX1064DAGISEL-NEXT:    s_endpgm
 ;
 ; GFX1064GISEL-LABEL: divergent_cfg_float:
 ; GFX1064GISEL:       ; %bb.0: ; %entry
 ; GFX1064GISEL-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x2c
 ; GFX1064GISEL-NEXT:    v_cmp_le_u32_e32 vcc, 16, v0
 ; GFX1064GISEL-NEXT:    ; implicit-def: $sgpr6
 ; GFX1064GISEL-NEXT:    s_and_saveexec_b64 s[2:3], vcc
 ; GFX1064GISEL-NEXT:    s_xor_b64 s[2:3], exec, s[2:3]
 ; GFX1064GISEL-NEXT:    s_cbranch_execz .LBB2_2
 ; GFX1064GISEL-NEXT:  ; %bb.1: ; %else
 ; GFX1064GISEL-NEXT:    s_mov_b64 s[6:7], exec
 ; GFX1064GISEL-NEXT:    s_bcnt1_i32_b64 s6, s[6:7]
 ; GFX1064GISEL-NEXT:    v_cvt_f32_i32_e32 v0, s6
 ; GFX1064GISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1064GISEL-NEXT:    v_mul_f32_e64 v0, -s0, v0
 ; GFX1064GISEL-NEXT:    v_readfirstlane_b32 s6, v0
 ; GFX1064GISEL-NEXT:  .LBB2_2: ; %Flow
 ; GFX1064GISEL-NEXT:    s_andn2_saveexec_b64 s[2:3], s[2:3]
 ; GFX1064GISEL-NEXT:    s_cbranch_execz .LBB2_4
 ; GFX1064GISEL-NEXT:  ; %bb.3: ; %if
 ; GFX1064GISEL-NEXT:    s_mov_b64 s[6:7], exec
 ; GFX1064GISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1064GISEL-NEXT:    s_bcnt1_i32_b64 s0, s[6:7]
 ; GFX1064GISEL-NEXT:    v_cvt_f32_i32_e32 v0, s0
 ; GFX1064GISEL-NEXT:    v_mul_f32_e64 v0, -s1, v0
 ; GFX1064GISEL-NEXT:    v_readfirstlane_b32 s6, v0
 ; GFX1064GISEL-NEXT:  .LBB2_4: ; %endif
 ; GFX1064GISEL-NEXT:    s_or_b64 exec, exec, s[2:3]
 ; GFX1064GISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1064GISEL-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x24
 ; GFX1064GISEL-NEXT:    v_mov_b32_e32 v0, s6
 ; GFX1064GISEL-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX1064GISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1064GISEL-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX1064GISEL-NEXT:    s_endpgm
 ;
 ; GFX1032DAGISEL-LABEL: divergent_cfg_float:
 ; GFX1032DAGISEL:       ; %bb.0: ; %entry
 ; GFX1032DAGISEL-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x2c
 ; GFX1032DAGISEL-NEXT:    v_cmp_lt_u32_e32 vcc_lo, 15, v0
 ; GFX1032DAGISEL-NEXT:    ; implicit-def: $sgpr3
 ; GFX1032DAGISEL-NEXT:    s_and_saveexec_b32 s2, vcc_lo
 ; GFX1032DAGISEL-NEXT:    s_xor_b32 s2, exec_lo, s2
 ; GFX1032DAGISEL-NEXT:    s_cbranch_execz .LBB2_2
 ; GFX1032DAGISEL-NEXT:  ; %bb.1: ; %else
 ; GFX1032DAGISEL-NEXT:    s_mov_b32 s3, exec_lo
 ; GFX1032DAGISEL-NEXT:    s_bcnt1_i32_b32 s3, s3
 ; GFX1032DAGISEL-NEXT:    v_cvt_f32_i32_e32 v0, s3
 ; GFX1032DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1032DAGISEL-NEXT:    v_mul_f32_e64 v0, -s0, v0
 ; GFX1032DAGISEL-NEXT:    v_readfirstlane_b32 s3, v0
 ; GFX1032DAGISEL-NEXT:  .LBB2_2: ; %Flow
 ; GFX1032DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1032DAGISEL-NEXT:    s_or_saveexec_b32 s0, s2
 ; GFX1032DAGISEL-NEXT:    v_mov_b32_e32 v0, s3
 ; GFX1032DAGISEL-NEXT:    s_xor_b32 exec_lo, exec_lo, s0
 ; GFX1032DAGISEL-NEXT:    s_cbranch_execz .LBB2_4
 ; GFX1032DAGISEL-NEXT:  ; %bb.3: ; %if
 ; GFX1032DAGISEL-NEXT:    s_mov_b32 s2, exec_lo
 ; GFX1032DAGISEL-NEXT:    s_bcnt1_i32_b32 s2, s2
 ; GFX1032DAGISEL-NEXT:    v_cvt_f32_i32_e32 v0, s2
 ; GFX1032DAGISEL-NEXT:    v_mul_f32_e64 v0, -s1, v0
 ; GFX1032DAGISEL-NEXT:    v_readfirstlane_b32 s1, v0
 ; GFX1032DAGISEL-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX1032DAGISEL-NEXT:  .LBB2_4: ; %endif
 ; GFX1032DAGISEL-NEXT:    s_or_b32 exec_lo, exec_lo, s0
 ; GFX1032DAGISEL-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x24
 ; GFX1032DAGISEL-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX1032DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1032DAGISEL-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX1032DAGISEL-NEXT:    s_endpgm
 ;
 ; GFX1032GISEL-LABEL: divergent_cfg_float:
 ; GFX1032GISEL:       ; %bb.0: ; %entry
 ; GFX1032GISEL-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x2c
 ; GFX1032GISEL-NEXT:    v_cmp_le_u32_e32 vcc_lo, 16, v0
 ; GFX1032GISEL-NEXT:    ; implicit-def: $sgpr2
 ; GFX1032GISEL-NEXT:    s_and_saveexec_b32 s3, vcc_lo
 ; GFX1032GISEL-NEXT:    s_xor_b32 s3, exec_lo, s3
 ; GFX1032GISEL-NEXT:    s_cbranch_execz .LBB2_2
 ; GFX1032GISEL-NEXT:  ; %bb.1: ; %else
 ; GFX1032GISEL-NEXT:    s_mov_b32 s2, exec_lo
 ; GFX1032GISEL-NEXT:    s_bcnt1_i32_b32 s2, s2
 ; GFX1032GISEL-NEXT:    v_cvt_f32_i32_e32 v0, s2
 ; GFX1032GISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1032GISEL-NEXT:    v_mul_f32_e64 v0, -s0, v0
 ; GFX1032GISEL-NEXT:    v_readfirstlane_b32 s2, v0
 ; GFX1032GISEL-NEXT:  .LBB2_2: ; %Flow
 ; GFX1032GISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1032GISEL-NEXT:    s_andn2_saveexec_b32 s0, s3
 ; GFX1032GISEL-NEXT:    s_cbranch_execz .LBB2_4
 ; GFX1032GISEL-NEXT:  ; %bb.3: ; %if
 ; GFX1032GISEL-NEXT:    s_mov_b32 s2, exec_lo
 ; GFX1032GISEL-NEXT:    s_bcnt1_i32_b32 s2, s2
 ; GFX1032GISEL-NEXT:    v_cvt_f32_i32_e32 v0, s2
 ; GFX1032GISEL-NEXT:    v_mul_f32_e64 v0, -s1, v0
 ; GFX1032GISEL-NEXT:    v_readfirstlane_b32 s2, v0
 ; GFX1032GISEL-NEXT:  .LBB2_4: ; %endif
 ; GFX1032GISEL-NEXT:    s_or_b32 exec_lo, exec_lo, s0
 ; GFX1032GISEL-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x24
 ; GFX1032GISEL-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX1032GISEL-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX1032GISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1032GISEL-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX1032GISEL-NEXT:    s_endpgm
 ;
 ; GFX1164DAGISEL-LABEL: divergent_cfg_float:
 ; GFX1164DAGISEL:       ; %bb.0: ; %entry
 ; GFX1164DAGISEL-NEXT:    s_load_b64 s[0:1], s[4:5], 0x2c
 ; GFX1164DAGISEL-NEXT:    v_and_b32_e32 v0, 0x3ff, v0
 ; GFX1164DAGISEL-NEXT:    s_mov_b64 s[2:3], exec
 ; GFX1164DAGISEL-NEXT:    ; implicit-def: $sgpr6
 ; GFX1164DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1)
 ; GFX1164DAGISEL-NEXT:    v_cmpx_lt_u32_e32 15, v0
 ; GFX1164DAGISEL-NEXT:    s_xor_b64 s[2:3], exec, s[2:3]
 ; GFX1164DAGISEL-NEXT:    s_cbranch_execz .LBB2_2
 ; GFX1164DAGISEL-NEXT:  ; %bb.1: ; %else
 ; GFX1164DAGISEL-NEXT:    s_mov_b64 s[6:7], exec
 ; GFX1164DAGISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | instskip(NEXT) | instid1(SALU_CYCLE_1)
 ; GFX1164DAGISEL-NEXT:    s_bcnt1_i32_b64 s6, s[6:7]
 ; GFX1164DAGISEL-NEXT:    v_cvt_f32_i32_e32 v0, s6
 ; GFX1164DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1164DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1) | instskip(NEXT) | instid1(VALU_DEP_1)
 ; GFX1164DAGISEL-NEXT:    v_mul_f32_e64 v0, -s0, v0
 ; GFX1164DAGISEL-NEXT:    v_readfirstlane_b32 s6, v0
 ; GFX1164DAGISEL-NEXT:  .LBB2_2: ; %Flow
 ; GFX1164DAGISEL-NEXT:    s_or_saveexec_b64 s[2:3], s[2:3]
 ; GFX1164DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1)
 ; GFX1164DAGISEL-NEXT:    v_mov_b32_e32 v0, s6
 ; GFX1164DAGISEL-NEXT:    s_xor_b64 exec, exec, s[2:3]
 ; GFX1164DAGISEL-NEXT:    s_cbranch_execz .LBB2_4
 ; GFX1164DAGISEL-NEXT:  ; %bb.3: ; %if
 ; GFX1164DAGISEL-NEXT:    s_mov_b64 s[6:7], exec
 ; GFX1164DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1164DAGISEL-NEXT:    s_bcnt1_i32_b64 s0, s[6:7]
 ; GFX1164DAGISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | instskip(NEXT) | instid1(VALU_DEP_1)
 ; GFX1164DAGISEL-NEXT:    v_cvt_f32_i32_e32 v0, s0
 ; GFX1164DAGISEL-NEXT:    v_mul_f32_e64 v0, -s1, v0
 ; GFX1164DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1) | instskip(NEXT) | instid1(VALU_DEP_1)
 ; GFX1164DAGISEL-NEXT:    v_readfirstlane_b32 s0, v0
 ; GFX1164DAGISEL-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX1164DAGISEL-NEXT:  .LBB2_4: ; %endif
 ; GFX1164DAGISEL-NEXT:    s_or_b64 exec, exec, s[2:3]
 ; GFX1164DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1164DAGISEL-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
 ; GFX1164DAGISEL-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX1164DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1164DAGISEL-NEXT:    global_store_b32 v1, v0, s[0:1]
 ; GFX1164DAGISEL-NEXT:    s_endpgm
 ;
 ; GFX1164GISEL-LABEL: divergent_cfg_float:
 ; GFX1164GISEL:       ; %bb.0: ; %entry
 ; GFX1164GISEL-NEXT:    s_load_b64 s[0:1], s[4:5], 0x2c
 ; GFX1164GISEL-NEXT:    v_and_b32_e32 v0, 0x3ff, v0
 ; GFX1164GISEL-NEXT:    s_mov_b64 s[2:3], exec
 ; GFX1164GISEL-NEXT:    ; implicit-def: $sgpr6
 ; GFX1164GISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1)
 ; GFX1164GISEL-NEXT:    v_cmpx_le_u32_e32 16, v0
 ; GFX1164GISEL-NEXT:    s_xor_b64 s[2:3], exec, s[2:3]
 ; GFX1164GISEL-NEXT:    s_cbranch_execz .LBB2_2
 ; GFX1164GISEL-NEXT:  ; %bb.1: ; %else
 ; GFX1164GISEL-NEXT:    s_mov_b64 s[6:7], exec
 ; GFX1164GISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | instskip(NEXT) | instid1(SALU_CYCLE_1)
 ; GFX1164GISEL-NEXT:    s_bcnt1_i32_b64 s6, s[6:7]
 ; GFX1164GISEL-NEXT:    v_cvt_f32_i32_e32 v0, s6
 ; GFX1164GISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1164GISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1) | instskip(NEXT) | instid1(VALU_DEP_1)
 ; GFX1164GISEL-NEXT:    v_mul_f32_e64 v0, -s0, v0
 ; GFX1164GISEL-NEXT:    v_readfirstlane_b32 s6, v0
 ; GFX1164GISEL-NEXT:  .LBB2_2: ; %Flow
 ; GFX1164GISEL-NEXT:    s_and_not1_saveexec_b64 s[2:3], s[2:3]
 ; GFX1164GISEL-NEXT:    s_cbranch_execz .LBB2_4
 ; GFX1164GISEL-NEXT:  ; %bb.3: ; %if
 ; GFX1164GISEL-NEXT:    s_mov_b64 s[6:7], exec
 ; GFX1164GISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1164GISEL-NEXT:    s_bcnt1_i32_b64 s0, s[6:7]
 ; GFX1164GISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | instskip(NEXT) | instid1(VALU_DEP_1)
 ; GFX1164GISEL-NEXT:    v_cvt_f32_i32_e32 v0, s0
 ; GFX1164GISEL-NEXT:    v_mul_f32_e64 v0, -s1, v0
 ; GFX1164GISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1)
 ; GFX1164GISEL-NEXT:    v_readfirstlane_b32 s6, v0
 ; GFX1164GISEL-NEXT:  .LBB2_4: ; %endif
 ; GFX1164GISEL-NEXT:    s_or_b64 exec, exec, s[2:3]
 ; GFX1164GISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1164GISEL-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
 ; GFX1164GISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1)
 ; GFX1164GISEL-NEXT:    v_mov_b32_e32 v0, s6
 ; GFX1164GISEL-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX1164GISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1164GISEL-NEXT:    global_store_b32 v1, v0, s[0:1]
 ; GFX1164GISEL-NEXT:    s_endpgm
 ;
 ; GFX1132DAGISEL-LABEL: divergent_cfg_float:
 ; GFX1132DAGISEL:       ; %bb.0: ; %entry
 ; GFX1132DAGISEL-NEXT:    s_load_b64 s[0:1], s[4:5], 0x2c
 ; GFX1132DAGISEL-NEXT:    v_and_b32_e32 v0, 0x3ff, v0
 ; GFX1132DAGISEL-NEXT:    s_mov_b32 s2, exec_lo
 ; GFX1132DAGISEL-NEXT:    ; implicit-def: $sgpr3
 ; GFX1132DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1)
 ; GFX1132DAGISEL-NEXT:    v_cmpx_lt_u32_e32 15, v0
 ; GFX1132DAGISEL-NEXT:    s_xor_b32 s2, exec_lo, s2
 ; GFX1132DAGISEL-NEXT:    s_cbranch_execz .LBB2_2
 ; GFX1132DAGISEL-NEXT:  ; %bb.1: ; %else
 ; GFX1132DAGISEL-NEXT:    s_mov_b32 s3, exec_lo
 ; GFX1132DAGISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | instskip(NEXT) | instid1(SALU_CYCLE_1)
 ; GFX1132DAGISEL-NEXT:    s_bcnt1_i32_b32 s3, s3
 ; GFX1132DAGISEL-NEXT:    v_cvt_f32_i32_e32 v0, s3
 ; GFX1132DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1132DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1) | instskip(NEXT) | instid1(VALU_DEP_1)
 ; GFX1132DAGISEL-NEXT:    v_mul_f32_e64 v0, -s0, v0
 ; GFX1132DAGISEL-NEXT:    v_readfirstlane_b32 s3, v0
 ; GFX1132DAGISEL-NEXT:  .LBB2_2: ; %Flow
 ; GFX1132DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1132DAGISEL-NEXT:    s_or_saveexec_b32 s0, s2
 ; GFX1132DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1)
 ; GFX1132DAGISEL-NEXT:    v_mov_b32_e32 v0, s3
 ; GFX1132DAGISEL-NEXT:    s_xor_b32 exec_lo, exec_lo, s0
 ; GFX1132DAGISEL-NEXT:    s_cbranch_execz .LBB2_4
 ; GFX1132DAGISEL-NEXT:  ; %bb.3: ; %if
 ; GFX1132DAGISEL-NEXT:    s_mov_b32 s2, exec_lo
 ; GFX1132DAGISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | instskip(NEXT) | instid1(SALU_CYCLE_1)
 ; GFX1132DAGISEL-NEXT:    s_bcnt1_i32_b32 s2, s2
 ; GFX1132DAGISEL-NEXT:    v_cvt_f32_i32_e32 v0, s2
 ; GFX1132DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1) | instskip(NEXT) | instid1(VALU_DEP_1)
 ; GFX1132DAGISEL-NEXT:    v_mul_f32_e64 v0, -s1, v0
 ; GFX1132DAGISEL-NEXT:    v_readfirstlane_b32 s1, v0
 ; GFX1132DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1)
 ; GFX1132DAGISEL-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX1132DAGISEL-NEXT:  .LBB2_4: ; %endif
 ; GFX1132DAGISEL-NEXT:    s_or_b32 exec_lo, exec_lo, s0
 ; GFX1132DAGISEL-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
 ; GFX1132DAGISEL-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX1132DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1132DAGISEL-NEXT:    global_store_b32 v1, v0, s[0:1]
 ; GFX1132DAGISEL-NEXT:    s_endpgm
 ;
 ; GFX1132GISEL-LABEL: divergent_cfg_float:
 ; GFX1132GISEL:       ; %bb.0: ; %entry
 ; GFX1132GISEL-NEXT:    s_load_b64 s[0:1], s[4:5], 0x2c
 ; GFX1132GISEL-NEXT:    v_and_b32_e32 v0, 0x3ff, v0
 ; GFX1132GISEL-NEXT:    s_mov_b32 s3, exec_lo
 ; GFX1132GISEL-NEXT:    ; implicit-def: $sgpr2
 ; GFX1132GISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1)
 ; GFX1132GISEL-NEXT:    v_cmpx_le_u32_e32 16, v0
 ; GFX1132GISEL-NEXT:    s_xor_b32 s3, exec_lo, s3
 ; GFX1132GISEL-NEXT:    s_cbranch_execz .LBB2_2
 ; GFX1132GISEL-NEXT:  ; %bb.1: ; %else
 ; GFX1132GISEL-NEXT:    s_mov_b32 s2, exec_lo
 ; GFX1132GISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | instskip(NEXT) | instid1(SALU_CYCLE_1)
 ; GFX1132GISEL-NEXT:    s_bcnt1_i32_b32 s2, s2
 ; GFX1132GISEL-NEXT:    v_cvt_f32_i32_e32 v0, s2
 ; GFX1132GISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1132GISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1) | instskip(NEXT) | instid1(VALU_DEP_1)
 ; GFX1132GISEL-NEXT:    v_mul_f32_e64 v0, -s0, v0
 ; GFX1132GISEL-NEXT:    v_readfirstlane_b32 s2, v0
 ; GFX1132GISEL-NEXT:  .LBB2_2: ; %Flow
 ; GFX1132GISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1132GISEL-NEXT:    s_and_not1_saveexec_b32 s0, s3
 ; GFX1132GISEL-NEXT:    s_cbranch_execz .LBB2_4
 ; GFX1132GISEL-NEXT:  ; %bb.3: ; %if
 ; GFX1132GISEL-NEXT:    s_mov_b32 s2, exec_lo
 ; GFX1132GISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | instskip(NEXT) | instid1(SALU_CYCLE_1)
 ; GFX1132GISEL-NEXT:    s_bcnt1_i32_b32 s2, s2
 ; GFX1132GISEL-NEXT:    v_cvt_f32_i32_e32 v0, s2
 ; GFX1132GISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1) | instskip(NEXT) | instid1(VALU_DEP_1)
 ; GFX1132GISEL-NEXT:    v_mul_f32_e64 v0, -s1, v0
 ; GFX1132GISEL-NEXT:    v_readfirstlane_b32 s2, v0
 ; GFX1132GISEL-NEXT:  .LBB2_4: ; %endif
 ; GFX1132GISEL-NEXT:    s_or_b32 exec_lo, exec_lo, s0
 ; GFX1132GISEL-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
 ; GFX1132GISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1)
 ; GFX1132GISEL-NEXT:    v_dual_mov_b32 v0, s2 :: v_dual_mov_b32 v1, 0
 ; GFX1132GISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1132GISEL-NEXT:    global_store_b32 v1, v0, s[0:1]
 ; GFX1132GISEL-NEXT:    s_endpgm
 ;
 ; GFX12DAGISEL-LABEL: divergent_cfg_float:
 ; GFX12DAGISEL:       ; %bb.0: ; %entry
 ; GFX12DAGISEL-NEXT:    s_load_b64 s[0:1], s[4:5], 0x2c
 ; GFX12DAGISEL-NEXT:    v_and_b32_e32 v0, 0x3ff, v0
 ; GFX12DAGISEL-NEXT:    s_mov_b32 s2, exec_lo
 ; GFX12DAGISEL-NEXT:    ; implicit-def: $sgpr3
 ; GFX12DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1)
 ; GFX12DAGISEL-NEXT:    v_cmpx_lt_u32_e32 15, v0
 ; GFX12DAGISEL-NEXT:    s_xor_b32 s2, exec_lo, s2
 ; GFX12DAGISEL-NEXT:    s_cbranch_execz .LBB2_2
 ; GFX12DAGISEL-NEXT:  ; %bb.1: ; %else
 ; GFX12DAGISEL-NEXT:    s_mov_b32 s3, exec_lo
 ; GFX12DAGISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | instskip(NEXT) | instid1(SALU_CYCLE_1)
 ; GFX12DAGISEL-NEXT:    s_bcnt1_i32_b32 s3, s3
 ; GFX12DAGISEL-NEXT:    v_cvt_f32_i32_e32 v0, s3
 ; GFX12DAGISEL-NEXT:    s_wait_kmcnt 0x0
 ; GFX12DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1) | instskip(NEXT) | instid1(VALU_DEP_1)
 ; GFX12DAGISEL-NEXT:    v_mul_f32_e64 v0, -s0, v0
 ; GFX12DAGISEL-NEXT:    v_readfirstlane_b32 s3, v0
 ; GFX12DAGISEL-NEXT:  .LBB2_2: ; %Flow
 ; GFX12DAGISEL-NEXT:    s_wait_kmcnt 0x0
 ; GFX12DAGISEL-NEXT:    s_or_saveexec_b32 s0, s2
 ; GFX12DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1)
 ; GFX12DAGISEL-NEXT:    v_mov_b32_e32 v0, s3
 ; GFX12DAGISEL-NEXT:    s_wait_alu depctr_sa_sdst(0)
 ; GFX12DAGISEL-NEXT:    s_xor_b32 exec_lo, exec_lo, s0
 ; GFX12DAGISEL-NEXT:    s_cbranch_execz .LBB2_4
 ; GFX12DAGISEL-NEXT:  ; %bb.3: ; %if
 ; GFX12DAGISEL-NEXT:    s_mov_b32 s2, exec_lo
 ; GFX12DAGISEL-NEXT:    s_wait_alu depctr_sa_sdst(0)
 ; GFX12DAGISEL-NEXT:    s_bcnt1_i32_b32 s2, s2
 ; GFX12DAGISEL-NEXT:    s_wait_alu depctr_sa_sdst(0)
 ; GFX12DAGISEL-NEXT:    v_cvt_f32_i32_e32 v0, s2
 ; GFX12DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1) | instskip(NEXT) | instid1(VALU_DEP_1)
 ; GFX12DAGISEL-NEXT:    v_mul_f32_e64 v0, -s1, v0
 ; GFX12DAGISEL-NEXT:    v_readfirstlane_b32 s1, v0
 ; GFX12DAGISEL-NEXT:    s_wait_alu depctr_va_sdst(0)
 ; GFX12DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1)
 ; GFX12DAGISEL-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX12DAGISEL-NEXT:  .LBB2_4: ; %endif
 ; GFX12DAGISEL-NEXT:    s_or_b32 exec_lo, exec_lo, s0
 ; GFX12DAGISEL-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
 ; GFX12DAGISEL-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX12DAGISEL-NEXT:    s_wait_kmcnt 0x0
 ; GFX12DAGISEL-NEXT:    global_store_b32 v1, v0, s[0:1]
 ; GFX12DAGISEL-NEXT:    s_endpgm
 entry:
   %tid = call i32 @llvm.amdgcn.workitem.id.x()
   %d_cmp = icmp ult i32 %tid, 16
   br i1 %d_cmp, label %if, label %else

 if:
   %reducedValTid = call float @llvm.amdgcn.wave.reduce.fsub(float %in2, i32 1)
   br label %endif

 else:
   %reducedValIn = call float @llvm.amdgcn.wave.reduce.fsub(float %in, i32 1)
   br label %endif

 endif:
   %combine = phi float [%reducedValTid, %if], [%reducedValIn, %else]
   store float %combine, ptr addrspace(1) %out
   ret void
 }
 ;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
 ; GFX10DAGISEL: {{.*}}
 ; GFX10GISEL: {{.*}}
 ; GFX11DAGISEL: {{.*}}
 ; GFX11GISEL: {{.*}}