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[AMDGPU] Always expand system scope fp atomics on gfx90a
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FP atomics in system scope cannot be used and shall always
be expanded in a CAS loop.

Differential Revision: https://reviews.llvm.org/D98085
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@rampitec
rampitec committed Mar 10, 2021
1 parent a2abe22 commit 574a9da
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Showing 3 changed files with 445 additions and 28 deletions.
8 changes: 7 additions & 1 deletion llvm/lib/Target/AMDGPU/SIISelLowering.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -11949,9 +11949,15 @@ SITargetLowering::shouldExpandAtomicRMWInIR(AtomicRMWInst *RMW) const {
.getValueAsString() != "true")
return AtomicExpansionKind::CmpXChg;

if (Subtarget->hasGFX90AInsts())
if (Subtarget->hasGFX90AInsts()) {
auto SSID = RMW->getSyncScopeID();
if (SSID == SyncScope::System ||
SSID == RMW->getContext().getOrInsertSyncScopeID("one-as"))
return AtomicExpansionKind::CmpXChg;

return (Ty->isFloatTy() && AS == AMDGPUAS::FLAT_ADDRESS) ?
AtomicExpansionKind::CmpXChg : AtomicExpansionKind::None;
}

if (!Subtarget->hasGFX90AInsts() && AS != AMDGPUAS::GLOBAL_ADDRESS)
return AtomicExpansionKind::CmpXChg;
Expand Down
271 changes: 258 additions & 13 deletions llvm/test/CodeGen/AMDGPU/fp64-atomics-gfx90a.ll
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Original file line number Diff line number Diff line change
Expand Up @@ -415,19 +415,80 @@ define amdgpu_kernel void @global_atomic_fadd_f64_noret_pat(double addrspace(1)*
; GFX90A-LABEL: global_atomic_fadd_f64_noret_pat:
; GFX90A: ; %bb.0: ; %main_body
; GFX90A-NEXT: s_load_dwordx2 s[0:1], s[0:1], 0x24
; GFX90A-NEXT: s_mov_b64 s[2:3], 0
; GFX90A-NEXT: s_waitcnt lgkmcnt(0)
; GFX90A-NEXT: s_load_dwordx2 s[4:5], s[0:1], 0x0
; GFX90A-NEXT: s_waitcnt lgkmcnt(0)
; GFX90A-NEXT: v_pk_mov_b32 v[2:3], s[4:5], s[4:5] op_sel:[0,1]
; GFX90A-NEXT: BB24_1: ; %atomicrmw.start
; GFX90A-NEXT: ; =>This Inner Loop Header: Depth=1
; GFX90A-NEXT: v_mov_b32_e32 v4, 0
; GFX90A-NEXT: v_add_f64 v[0:1], v[2:3], 4.0
; GFX90A-NEXT: buffer_wbl2
; GFX90A-NEXT: s_waitcnt vmcnt(0) lgkmcnt(0)
; GFX90A-NEXT: global_atomic_cmpswap_x2 v[0:1], v4, v[0:3], s[0:1] glc scc
; GFX90A-NEXT: s_waitcnt vmcnt(0)
; GFX90A-NEXT: buffer_invl2
; GFX90A-NEXT: s_waitcnt vmcnt(0)
; GFX90A-NEXT: buffer_wbinvl1_vol
; GFX90A-NEXT: v_cmp_eq_u64_e32 vcc, v[0:1], v[2:3]
; GFX90A-NEXT: s_or_b64 s[2:3], vcc, s[2:3]
; GFX90A-NEXT: v_pk_mov_b32 v[2:3], v[0:1], v[0:1] op_sel:[0,1]
; GFX90A-NEXT: s_andn2_b64 exec, exec, s[2:3]
; GFX90A-NEXT: s_cbranch_execnz BB24_1
; GFX90A-NEXT: ; %bb.2: ; %atomicrmw.end
; GFX90A-NEXT: s_endpgm
main_body:
%ret = atomicrmw fadd double addrspace(1)* %ptr, double 4.0 seq_cst
ret void
}

define amdgpu_kernel void @global_atomic_fadd_f64_noret_pat_agent(double addrspace(1)* %ptr) #1 {
; GFX90A-LABEL: global_atomic_fadd_f64_noret_pat_agent:
; GFX90A: ; %bb.0: ; %main_body
; GFX90A-NEXT: s_load_dwordx2 s[0:1], s[0:1], 0x24
; GFX90A-NEXT: v_mov_b32_e32 v0, 0
; GFX90A-NEXT: v_mov_b32_e32 v2, 0
; GFX90A-NEXT: v_mov_b32_e32 v1, 0x40100000
; GFX90A-NEXT: s_waitcnt vmcnt(0) lgkmcnt(0)
; GFX90A-NEXT: global_atomic_add_f64 v2, v[0:1], s[0:1]
; GFX90A-NEXT: s_waitcnt vmcnt(0)
; GFX90A-NEXT: buffer_wbinvl1_vol
; GFX90A-NEXT: s_endpgm
main_body:
%ret = atomicrmw fadd double addrspace(1)* %ptr, double 4.0 syncscope("agent") seq_cst
ret void
}

define amdgpu_kernel void @global_atomic_fadd_f64_noret_pat_system(double addrspace(1)* %ptr) #1 {
; GFX90A-LABEL: global_atomic_fadd_f64_noret_pat_system:
; GFX90A: ; %bb.0: ; %main_body
; GFX90A-NEXT: s_load_dwordx2 s[0:1], s[0:1], 0x24
; GFX90A-NEXT: s_mov_b64 s[2:3], 0
; GFX90A-NEXT: s_waitcnt lgkmcnt(0)
; GFX90A-NEXT: s_load_dwordx2 s[4:5], s[0:1], 0x0
; GFX90A-NEXT: s_waitcnt lgkmcnt(0)
; GFX90A-NEXT: v_pk_mov_b32 v[2:3], s[4:5], s[4:5] op_sel:[0,1]
; GFX90A-NEXT: BB26_1: ; %atomicrmw.start
; GFX90A-NEXT: ; =>This Inner Loop Header: Depth=1
; GFX90A-NEXT: v_mov_b32_e32 v4, 0
; GFX90A-NEXT: v_add_f64 v[0:1], v[2:3], 4.0
; GFX90A-NEXT: buffer_wbl2
; GFX90A-NEXT: s_waitcnt vmcnt(0) lgkmcnt(0)
; GFX90A-NEXT: global_atomic_add_f64 v2, v[0:1], s[0:1] scc
; GFX90A-NEXT: global_atomic_cmpswap_x2 v[0:1], v4, v[0:3], s[0:1] glc scc
; GFX90A-NEXT: s_waitcnt vmcnt(0)
; GFX90A-NEXT: buffer_invl2
; GFX90A-NEXT: s_waitcnt vmcnt(0)
; GFX90A-NEXT: buffer_wbinvl1_vol
; GFX90A-NEXT: v_cmp_eq_u64_e32 vcc, v[0:1], v[2:3]
; GFX90A-NEXT: s_or_b64 s[2:3], vcc, s[2:3]
; GFX90A-NEXT: v_pk_mov_b32 v[2:3], v[0:1], v[0:1] op_sel:[0,1]
; GFX90A-NEXT: s_andn2_b64 exec, exec, s[2:3]
; GFX90A-NEXT: s_cbranch_execnz BB26_1
; GFX90A-NEXT: ; %bb.2: ; %atomicrmw.end
; GFX90A-NEXT: s_endpgm
main_body:
%ret = atomicrmw fadd double addrspace(1)* %ptr, double 4.0 seq_cst
%ret = atomicrmw fadd double addrspace(1)* %ptr, double 4.0 syncscope("one-as") seq_cst
ret void
}

Expand All @@ -440,7 +501,7 @@ define amdgpu_kernel void @global_atomic_fadd_f64_noret_pat_flush(double addrspa
; GFX90A-NEXT: s_load_dwordx2 s[4:5], s[0:1], 0x0
; GFX90A-NEXT: s_waitcnt lgkmcnt(0)
; GFX90A-NEXT: v_pk_mov_b32 v[2:3], s[4:5], s[4:5] op_sel:[0,1]
; GFX90A-NEXT: BB25_1: ; %atomicrmw.start
; GFX90A-NEXT: BB27_1: ; %atomicrmw.start
; GFX90A-NEXT: ; =>This Inner Loop Header: Depth=1
; GFX90A-NEXT: v_mov_b32_e32 v4, 0
; GFX90A-NEXT: v_add_f64 v[0:1], v[2:3], 4.0
Expand All @@ -455,11 +516,11 @@ define amdgpu_kernel void @global_atomic_fadd_f64_noret_pat_flush(double addrspa
; GFX90A-NEXT: s_or_b64 s[2:3], vcc, s[2:3]
; GFX90A-NEXT: v_pk_mov_b32 v[2:3], v[0:1], v[0:1] op_sel:[0,1]
; GFX90A-NEXT: s_andn2_b64 exec, exec, s[2:3]
; GFX90A-NEXT: s_cbranch_execnz BB25_1
; GFX90A-NEXT: s_cbranch_execnz BB27_1
; GFX90A-NEXT: ; %bb.2: ; %atomicrmw.end
; GFX90A-NEXT: s_endpgm
main_body:
%ret = atomicrmw fadd double addrspace(1)* %ptr, double 4.0 seq_cst
%ret = atomicrmw fadd double addrspace(1)* %ptr, double 4.0 syncscope("agent") seq_cst
ret void
}

Expand All @@ -479,18 +540,79 @@ define double @global_atomic_fadd_f64_rtn_pat(double addrspace(1)* %ptr, double
; GFX90A-LABEL: global_atomic_fadd_f64_rtn_pat:
; GFX90A: ; %bb.0: ; %main_body
; GFX90A-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX90A-NEXT: global_load_dwordx2 v[2:3], v[0:1], off
; GFX90A-NEXT: s_mov_b64 s[4:5], 0
; GFX90A-NEXT: BB29_1: ; %atomicrmw.start
; GFX90A-NEXT: ; =>This Inner Loop Header: Depth=1
; GFX90A-NEXT: s_waitcnt vmcnt(0)
; GFX90A-NEXT: v_pk_mov_b32 v[4:5], v[2:3], v[2:3] op_sel:[0,1]
; GFX90A-NEXT: v_add_f64 v[2:3], v[4:5], 4.0
; GFX90A-NEXT: buffer_wbl2
; GFX90A-NEXT: s_waitcnt vmcnt(0) lgkmcnt(0)
; GFX90A-NEXT: global_atomic_cmpswap_x2 v[2:3], v[0:1], v[2:5], off glc scc
; GFX90A-NEXT: s_waitcnt vmcnt(0)
; GFX90A-NEXT: buffer_invl2
; GFX90A-NEXT: s_waitcnt vmcnt(0)
; GFX90A-NEXT: buffer_wbinvl1_vol
; GFX90A-NEXT: v_cmp_eq_u64_e32 vcc, v[2:3], v[4:5]
; GFX90A-NEXT: s_or_b64 s[4:5], vcc, s[4:5]
; GFX90A-NEXT: s_andn2_b64 exec, exec, s[4:5]
; GFX90A-NEXT: s_cbranch_execnz BB29_1
; GFX90A-NEXT: ; %bb.2: ; %atomicrmw.end
; GFX90A-NEXT: s_or_b64 exec, exec, s[4:5]
; GFX90A-NEXT: v_mov_b32_e32 v0, v2
; GFX90A-NEXT: v_mov_b32_e32 v1, v3
; GFX90A-NEXT: s_setpc_b64 s[30:31]
main_body:
%ret = atomicrmw fadd double addrspace(1)* %ptr, double 4.0 seq_cst
ret double %ret
}

define double @global_atomic_fadd_f64_rtn_pat_agent(double addrspace(1)* %ptr, double %data) #1 {
; GFX90A-LABEL: global_atomic_fadd_f64_rtn_pat_agent:
; GFX90A: ; %bb.0: ; %main_body
; GFX90A-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX90A-NEXT: v_mov_b32_e32 v2, 0
; GFX90A-NEXT: v_mov_b32_e32 v3, 0x40100000
; GFX90A-NEXT: s_waitcnt vmcnt(0) lgkmcnt(0)
; GFX90A-NEXT: global_atomic_add_f64 v[0:1], v[0:1], v[2:3], off glc
; GFX90A-NEXT: s_waitcnt vmcnt(0)
; GFX90A-NEXT: buffer_wbinvl1_vol
; GFX90A-NEXT: s_setpc_b64 s[30:31]
main_body:
%ret = atomicrmw fadd double addrspace(1)* %ptr, double 4.0 syncscope("agent") seq_cst
ret double %ret
}

define double @global_atomic_fadd_f64_rtn_pat_system(double addrspace(1)* %ptr, double %data) #1 {
; GFX90A-LABEL: global_atomic_fadd_f64_rtn_pat_system:
; GFX90A: ; %bb.0: ; %main_body
; GFX90A-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX90A-NEXT: global_load_dwordx2 v[2:3], v[0:1], off
; GFX90A-NEXT: s_mov_b64 s[4:5], 0
; GFX90A-NEXT: BB31_1: ; %atomicrmw.start
; GFX90A-NEXT: ; =>This Inner Loop Header: Depth=1
; GFX90A-NEXT: s_waitcnt vmcnt(0)
; GFX90A-NEXT: v_pk_mov_b32 v[4:5], v[2:3], v[2:3] op_sel:[0,1]
; GFX90A-NEXT: v_add_f64 v[2:3], v[4:5], 4.0
; GFX90A-NEXT: buffer_wbl2
; GFX90A-NEXT: s_waitcnt vmcnt(0) lgkmcnt(0)
; GFX90A-NEXT: global_atomic_add_f64 v[0:1], v[0:1], v[2:3], off glc scc
; GFX90A-NEXT: global_atomic_cmpswap_x2 v[2:3], v[0:1], v[2:5], off glc scc
; GFX90A-NEXT: s_waitcnt vmcnt(0)
; GFX90A-NEXT: buffer_invl2
; GFX90A-NEXT: s_waitcnt vmcnt(0)
; GFX90A-NEXT: buffer_wbinvl1_vol
; GFX90A-NEXT: v_cmp_eq_u64_e32 vcc, v[2:3], v[4:5]
; GFX90A-NEXT: s_or_b64 s[4:5], vcc, s[4:5]
; GFX90A-NEXT: s_andn2_b64 exec, exec, s[4:5]
; GFX90A-NEXT: s_cbranch_execnz BB31_1
; GFX90A-NEXT: ; %bb.2: ; %atomicrmw.end
; GFX90A-NEXT: s_or_b64 exec, exec, s[4:5]
; GFX90A-NEXT: v_mov_b32_e32 v0, v2
; GFX90A-NEXT: v_mov_b32_e32 v1, v3
; GFX90A-NEXT: s_setpc_b64 s[30:31]
main_body:
%ret = atomicrmw fadd double addrspace(1)* %ptr, double 4.0 seq_cst
%ret = atomicrmw fadd double addrspace(1)* %ptr, double 4.0 syncscope("one-as") seq_cst
ret double %ret
}

Expand Down Expand Up @@ -522,39 +644,162 @@ define amdgpu_kernel void @flat_atomic_fadd_f64_noret_pat(double* %ptr) #1 {
; GFX90A-LABEL: flat_atomic_fadd_f64_noret_pat:
; GFX90A: ; %bb.0: ; %main_body
; GFX90A-NEXT: s_load_dwordx2 s[0:1], s[0:1], 0x24
; GFX90A-NEXT: s_mov_b64 s[2:3], 0
; GFX90A-NEXT: s_waitcnt lgkmcnt(0)
; GFX90A-NEXT: v_pk_mov_b32 v[0:1], s[0:1], s[0:1] op_sel:[0,1]
; GFX90A-NEXT: flat_load_dwordx2 v[2:3], v[0:1]
; GFX90A-NEXT: BB34_1: ; %atomicrmw.start
; GFX90A-NEXT: ; =>This Inner Loop Header: Depth=1
; GFX90A-NEXT: s_waitcnt vmcnt(0) lgkmcnt(0)
; GFX90A-NEXT: v_add_f64 v[0:1], v[2:3], 4.0
; GFX90A-NEXT: v_pk_mov_b32 v[4:5], s[0:1], s[0:1] op_sel:[0,1]
; GFX90A-NEXT: buffer_wbl2
; GFX90A-NEXT: s_waitcnt vmcnt(0) lgkmcnt(0)
; GFX90A-NEXT: flat_atomic_cmpswap_x2 v[0:1], v[4:5], v[0:3] glc scc
; GFX90A-NEXT: s_waitcnt vmcnt(0) lgkmcnt(0)
; GFX90A-NEXT: buffer_invl2
; GFX90A-NEXT: s_waitcnt vmcnt(0)
; GFX90A-NEXT: buffer_wbinvl1_vol
; GFX90A-NEXT: v_cmp_eq_u64_e32 vcc, v[0:1], v[2:3]
; GFX90A-NEXT: s_or_b64 s[2:3], vcc, s[2:3]
; GFX90A-NEXT: v_pk_mov_b32 v[2:3], v[0:1], v[0:1] op_sel:[0,1]
; GFX90A-NEXT: s_andn2_b64 exec, exec, s[2:3]
; GFX90A-NEXT: s_cbranch_execnz BB34_1
; GFX90A-NEXT: ; %bb.2: ; %atomicrmw.end
; GFX90A-NEXT: s_endpgm
main_body:
%ret = atomicrmw fadd double* %ptr, double 4.0 seq_cst
ret void
}

define amdgpu_kernel void @flat_atomic_fadd_f64_noret_pat_agent(double* %ptr) #1 {
; GFX90A-LABEL: flat_atomic_fadd_f64_noret_pat_agent:
; GFX90A: ; %bb.0: ; %main_body
; GFX90A-NEXT: s_load_dwordx2 s[0:1], s[0:1], 0x24
; GFX90A-NEXT: v_mov_b32_e32 v2, 0
; GFX90A-NEXT: v_mov_b32_e32 v3, 0x40100000
; GFX90A-NEXT: s_waitcnt lgkmcnt(0)
; GFX90A-NEXT: v_pk_mov_b32 v[0:1], s[0:1], s[0:1] op_sel:[0,1]
; GFX90A-NEXT: s_waitcnt vmcnt(0) lgkmcnt(0)
; GFX90A-NEXT: flat_atomic_add_f64 v[0:1], v[2:3]
; GFX90A-NEXT: s_waitcnt vmcnt(0) lgkmcnt(0)
; GFX90A-NEXT: buffer_wbinvl1_vol
; GFX90A-NEXT: s_endpgm
main_body:
%ret = atomicrmw fadd double* %ptr, double 4.0 syncscope("agent") seq_cst
ret void
}

define amdgpu_kernel void @flat_atomic_fadd_f64_noret_pat_system(double* %ptr) #1 {
; GFX90A-LABEL: flat_atomic_fadd_f64_noret_pat_system:
; GFX90A: ; %bb.0: ; %main_body
; GFX90A-NEXT: s_load_dwordx2 s[0:1], s[0:1], 0x24
; GFX90A-NEXT: s_mov_b64 s[2:3], 0
; GFX90A-NEXT: s_waitcnt lgkmcnt(0)
; GFX90A-NEXT: v_pk_mov_b32 v[0:1], s[0:1], s[0:1] op_sel:[0,1]
; GFX90A-NEXT: flat_load_dwordx2 v[2:3], v[0:1]
; GFX90A-NEXT: BB36_1: ; %atomicrmw.start
; GFX90A-NEXT: ; =>This Inner Loop Header: Depth=1
; GFX90A-NEXT: s_waitcnt vmcnt(0) lgkmcnt(0)
; GFX90A-NEXT: v_add_f64 v[0:1], v[2:3], 4.0
; GFX90A-NEXT: v_pk_mov_b32 v[4:5], s[0:1], s[0:1] op_sel:[0,1]
; GFX90A-NEXT: buffer_wbl2
; GFX90A-NEXT: s_waitcnt vmcnt(0) lgkmcnt(0)
; GFX90A-NEXT: flat_atomic_add_f64 v[0:1], v[2:3] scc
; GFX90A-NEXT: flat_atomic_cmpswap_x2 v[0:1], v[4:5], v[0:3] glc scc
; GFX90A-NEXT: s_waitcnt vmcnt(0) lgkmcnt(0)
; GFX90A-NEXT: buffer_invl2
; GFX90A-NEXT: s_waitcnt vmcnt(0)
; GFX90A-NEXT: buffer_wbinvl1_vol
; GFX90A-NEXT: v_cmp_eq_u64_e32 vcc, v[0:1], v[2:3]
; GFX90A-NEXT: s_or_b64 s[2:3], vcc, s[2:3]
; GFX90A-NEXT: v_pk_mov_b32 v[2:3], v[0:1], v[0:1] op_sel:[0,1]
; GFX90A-NEXT: s_andn2_b64 exec, exec, s[2:3]
; GFX90A-NEXT: s_cbranch_execnz BB36_1
; GFX90A-NEXT: ; %bb.2: ; %atomicrmw.end
; GFX90A-NEXT: s_endpgm
main_body:
%ret = atomicrmw fadd double* %ptr, double 4.0 seq_cst
%ret = atomicrmw fadd double* %ptr, double 4.0 syncscope("one-as") seq_cst
ret void
}

define double @flat_atomic_fadd_f64_rtn_pat(double* %ptr) #1 {
; GFX90A-LABEL: flat_atomic_fadd_f64_rtn_pat:
; GFX90A: ; %bb.0: ; %main_body
; GFX90A-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX90A-NEXT: flat_load_dwordx2 v[2:3], v[0:1]
; GFX90A-NEXT: s_mov_b64 s[4:5], 0
; GFX90A-NEXT: BB37_1: ; %atomicrmw.start
; GFX90A-NEXT: ; =>This Inner Loop Header: Depth=1
; GFX90A-NEXT: s_waitcnt vmcnt(0) lgkmcnt(0)
; GFX90A-NEXT: v_pk_mov_b32 v[4:5], v[2:3], v[2:3] op_sel:[0,1]
; GFX90A-NEXT: v_add_f64 v[2:3], v[4:5], 4.0
; GFX90A-NEXT: buffer_wbl2
; GFX90A-NEXT: s_waitcnt vmcnt(0) lgkmcnt(0)
; GFX90A-NEXT: flat_atomic_cmpswap_x2 v[2:3], v[0:1], v[2:5] glc scc
; GFX90A-NEXT: s_waitcnt vmcnt(0) lgkmcnt(0)
; GFX90A-NEXT: buffer_invl2
; GFX90A-NEXT: s_waitcnt vmcnt(0)
; GFX90A-NEXT: buffer_wbinvl1_vol
; GFX90A-NEXT: v_cmp_eq_u64_e32 vcc, v[2:3], v[4:5]
; GFX90A-NEXT: s_or_b64 s[4:5], vcc, s[4:5]
; GFX90A-NEXT: s_andn2_b64 exec, exec, s[4:5]
; GFX90A-NEXT: s_cbranch_execnz BB37_1
; GFX90A-NEXT: ; %bb.2: ; %atomicrmw.end
; GFX90A-NEXT: s_or_b64 exec, exec, s[4:5]
; GFX90A-NEXT: v_mov_b32_e32 v0, v2
; GFX90A-NEXT: v_mov_b32_e32 v1, v3
; GFX90A-NEXT: s_setpc_b64 s[30:31]
main_body:
%ret = atomicrmw fadd double* %ptr, double 4.0 seq_cst
ret double %ret
}

define double @flat_atomic_fadd_f64_rtn_pat_agent(double* %ptr) #1 {
; GFX90A-LABEL: flat_atomic_fadd_f64_rtn_pat_agent:
; GFX90A: ; %bb.0: ; %main_body
; GFX90A-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX90A-NEXT: v_mov_b32_e32 v2, 0
; GFX90A-NEXT: v_mov_b32_e32 v3, 0x40100000
; GFX90A-NEXT: s_waitcnt vmcnt(0) lgkmcnt(0)
; GFX90A-NEXT: flat_atomic_add_f64 v[0:1], v[0:1], v[2:3] glc
; GFX90A-NEXT: s_waitcnt vmcnt(0) lgkmcnt(0)
; GFX90A-NEXT: buffer_wbinvl1_vol
; GFX90A-NEXT: s_waitcnt lgkmcnt(0)
; GFX90A-NEXT: s_setpc_b64 s[30:31]
main_body:
%ret = atomicrmw fadd double* %ptr, double 4.0 syncscope("agent") seq_cst
ret double %ret
}

define double @flat_atomic_fadd_f64_rtn_pat_system(double* %ptr) #1 {
; GFX90A-LABEL: flat_atomic_fadd_f64_rtn_pat_system:
; GFX90A: ; %bb.0: ; %main_body
; GFX90A-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX90A-NEXT: flat_load_dwordx2 v[2:3], v[0:1]
; GFX90A-NEXT: s_mov_b64 s[4:5], 0
; GFX90A-NEXT: BB39_1: ; %atomicrmw.start
; GFX90A-NEXT: ; =>This Inner Loop Header: Depth=1
; GFX90A-NEXT: s_waitcnt vmcnt(0) lgkmcnt(0)
; GFX90A-NEXT: v_pk_mov_b32 v[4:5], v[2:3], v[2:3] op_sel:[0,1]
; GFX90A-NEXT: v_add_f64 v[2:3], v[4:5], 4.0
; GFX90A-NEXT: buffer_wbl2
; GFX90A-NEXT: s_waitcnt vmcnt(0) lgkmcnt(0)
; GFX90A-NEXT: flat_atomic_add_f64 v[0:1], v[0:1], v[2:3] glc scc
; GFX90A-NEXT: flat_atomic_cmpswap_x2 v[2:3], v[0:1], v[2:5] glc scc
; GFX90A-NEXT: s_waitcnt vmcnt(0) lgkmcnt(0)
; GFX90A-NEXT: buffer_invl2
; GFX90A-NEXT: s_waitcnt vmcnt(0)
; GFX90A-NEXT: buffer_wbinvl1_vol
; GFX90A-NEXT: v_cmp_eq_u64_e32 vcc, v[2:3], v[4:5]
; GFX90A-NEXT: s_or_b64 s[4:5], vcc, s[4:5]
; GFX90A-NEXT: s_andn2_b64 exec, exec, s[4:5]
; GFX90A-NEXT: s_cbranch_execnz BB39_1
; GFX90A-NEXT: ; %bb.2: ; %atomicrmw.end
; GFX90A-NEXT: s_or_b64 exec, exec, s[4:5]
; GFX90A-NEXT: v_mov_b32_e32 v0, v2
; GFX90A-NEXT: v_mov_b32_e32 v1, v3
; GFX90A-NEXT: s_setpc_b64 s[30:31]
main_body:
%ret = atomicrmw fadd double* %ptr, double 4.0 seq_cst
%ret = atomicrmw fadd double* %ptr, double 4.0 syncscope("one-as") seq_cst
ret double %ret
}

Expand Down Expand Up @@ -696,7 +941,7 @@ define amdgpu_kernel void @local_atomic_fadd_f64_noret_pat_flush(double addrspac
; GFX90A-NEXT: s_waitcnt lgkmcnt(0)
; GFX90A-NEXT: v_mov_b32_e32 v0, s0
; GFX90A-NEXT: ds_read_b64 v[0:1], v0
; GFX90A-NEXT: BB41_1: ; %atomicrmw.start
; GFX90A-NEXT: BB49_1: ; %atomicrmw.start
; GFX90A-NEXT: ; =>This Inner Loop Header: Depth=1
; GFX90A-NEXT: s_waitcnt lgkmcnt(0)
; GFX90A-NEXT: v_add_f64 v[2:3], v[0:1], 4.0
Expand All @@ -708,7 +953,7 @@ define amdgpu_kernel void @local_atomic_fadd_f64_noret_pat_flush(double addrspac
; GFX90A-NEXT: s_or_b64 s[2:3], vcc, s[2:3]
; GFX90A-NEXT: v_pk_mov_b32 v[0:1], v[2:3], v[2:3] op_sel:[0,1]
; GFX90A-NEXT: s_andn2_b64 exec, exec, s[2:3]
; GFX90A-NEXT: s_cbranch_execnz BB41_1
; GFX90A-NEXT: s_cbranch_execnz BB49_1
; GFX90A-NEXT: ; %bb.2: ; %atomicrmw.end
; GFX90A-NEXT: s_endpgm
main_body:
Expand Down
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