[llvm] [AMDGPU] Use glue for convergence tokens at call-like operations (PR #86766)
via llvm-commits
llvm-commits at lists.llvm.org
Tue Mar 26 21:32:43 PDT 2024
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-backend-amdgpu
@llvm/pr-subscribers-llvm-selectiondag
Author: Sameer Sahasrabuddhe (ssahasra)
<details>
<summary>Changes</summary>
The earlier implementation on AMDGPU used explicit token operands at SI_CALL and SI_CALL_ISEL. This is now replaced with CONVERGENCECTRL_GLUE operands, with the following effects:
- The treatment of tokens at call-like operations is now consistent with the treatment at intrinsics.
- Support for tail calls using implicit tokens at SI_TCRETURN "just works".
- The extra parameter at call-like instructions is eliminated, thus restoring those instructions and their handling to the original state.
The new glue node is placed after the existing glue node for the outgoing call parameters, which seems to not interfere with selection of the call-like nodes.
---
Patch is 52.27 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/86766.diff
15 Files Affected:
- (modified) llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp (-2)
- (modified) llvm/lib/Target/AMDGPU/SIISelLowering.cpp (+8-21)
- (modified) llvm/lib/Target/AMDGPU/SIInstructions.td (+4-4)
- (modified) llvm/test/CodeGen/AMDGPU/convergence-tokens.ll (+3-9)
- (modified) llvm/test/CodeGen/AMDGPU/isel-amdgpu-cs-chain-cc.ll (-18)
- (modified) llvm/test/CodeGen/AMDGPU/kernel-vgpr-spill-mubuf-with-voffset.ll (-1)
- (modified) llvm/test/CodeGen/AMDGPU/need-fp-from-vgpr-spills.ll (+6-12)
- (modified) llvm/test/CodeGen/AMDGPU/no-source-locations-in-prologue.ll (-1)
- (modified) llvm/test/CodeGen/AMDGPU/sgpr-spills-split-regalloc.ll (+6-9)
- (modified) llvm/test/CodeGen/AMDGPU/stacksave_stackrestore.ll (+36-42)
- (modified) llvm/test/CodeGen/AMDGPU/vgpr-liverange-ir.ll (+13-13)
- (modified) llvm/test/CodeGen/AMDGPU/vgpr_constant_to_sgpr.ll (-1)
- (modified) llvm/test/CodeGen/AMDGPU/whole-wave-register-spill.ll (-1)
- (modified) llvm/test/CodeGen/AMDGPU/wwm-reserved-spill.ll (-2)
- (modified) llvm/test/CodeGen/AMDGPU/wwm-reserved.ll (-4)
``````````diff
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 5db32472d197f5..64ead375e08b3e 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -8607,8 +8607,6 @@ void SelectionDAGBuilder::LowerCallTo(const CallBase &CB, SDValue Callee,
if (auto Bundle = CB.getOperandBundle(LLVMContext::OB_convergencectrl)) {
auto *Token = Bundle->Inputs[0].get();
ConvControlToken = getValue(Token);
- } else {
- ConvControlToken = DAG.getUNDEF(MVT::Untyped);
}
TargetLowering::CallLoweringInfo CLI(DAG);
diff --git a/llvm/lib/Target/AMDGPU/SIISelLowering.cpp b/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
index 0a4370de0613b3..b1b82848d91bde 100644
--- a/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
+++ b/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
@@ -3833,9 +3833,6 @@ SDValue SITargetLowering::LowerCall(CallLoweringInfo &CLI,
Ops.push_back(DAG.getTargetConstant(0, DL, MVT::i64));
}
- if (!IsTailCall)
- Ops.push_back(CLI.ConvergenceControlToken);
-
if (IsTailCall) {
// Each tail call may have to adjust the stack by a different amount, so
// this information must travel along with the operation for eventual
@@ -3862,6 +3859,12 @@ SDValue SITargetLowering::LowerCall(CallLoweringInfo &CLI,
if (InGlue.getNode())
Ops.push_back(InGlue);
+ if (SDValue Token = CLI.ConvergenceControlToken) {
+ Ops.push_back(SDValue(DAG.getMachineNode(TargetOpcode::CONVERGENCECTRL_GLUE,
+ DL, MVT::Glue, Token),
+ 0));
+ }
+
SDVTList NodeTys = DAG.getVTList(MVT::Other, MVT::Glue);
// If we're doing a tall call, use a TC_RETURN here rather than an
@@ -5226,24 +5229,8 @@ MachineBasicBlock *SITargetLowering::EmitInstrWithCustomInserter(
MachineInstrBuilder MIB;
MIB = BuildMI(*BB, MI, DL, TII->get(AMDGPU::SI_CALL), ReturnAddrReg);
- for (unsigned I = 0, E = MI.getNumOperands(); I != E; ++I) {
- MachineOperand &MO = MI.getOperand(I);
- if (I != 2) {
- MIB.add(MO);
- continue;
- }
- }
-
- MachineOperand &MO = MI.getOperand(2);
- MachineRegisterInfo &MRI = BB->getParent()->getRegInfo();
- // The token operand is always a register, whose definition is IMPLICIT_DEF
- // iff there was no token on the call.
- if (MachineInstr *Def = MRI.getVRegDef(MO.getReg())) {
- if (Def->getOpcode() != TargetOpcode::IMPLICIT_DEF) {
- MO.setImplicit();
- MIB.add(MO);
- }
- }
+ for (const MachineOperand &MO : MI.operands())
+ MIB.add(MO);
MIB.cloneMemRefs(MI);
MI.eraseFromParent();
diff --git a/llvm/lib/Target/AMDGPU/SIInstructions.td b/llvm/lib/Target/AMDGPU/SIInstructions.td
index 1c942dcefdacea..04f3a2f5760532 100644
--- a/llvm/lib/Target/AMDGPU/SIInstructions.td
+++ b/llvm/lib/Target/AMDGPU/SIInstructions.td
@@ -618,8 +618,8 @@ def SI_RETURN : SPseudoInstSI <
// This version is only needed so we can fill in the output register
// in the custom inserter.
def SI_CALL_ISEL : SPseudoInstSI <
- (outs), (ins SSrc_b64:$src0, unknown:$callee, unknown:$token),
- [(AMDGPUcall i64:$src0, tglobaladdr:$callee, untyped:$token)]> {
+ (outs), (ins SSrc_b64:$src0, unknown:$callee),
+ [(AMDGPUcall i64:$src0, tglobaladdr:$callee)]> {
let Size = 4;
let isCall = 1;
let SchedRW = [WriteBranch];
@@ -629,8 +629,8 @@ def SI_CALL_ISEL : SPseudoInstSI <
}
def : GCNPat<
- (AMDGPUcall i64:$src0, (i64 0), untyped:$token),
- (SI_CALL_ISEL $src0, (i64 0), untyped:$token)
+ (AMDGPUcall i64:$src0, (i64 0)),
+ (SI_CALL_ISEL $src0, (i64 0))
>;
// Wrapper around s_swappc_b64 with extra $callee parameter to track
diff --git a/llvm/test/CodeGen/AMDGPU/convergence-tokens.ll b/llvm/test/CodeGen/AMDGPU/convergence-tokens.ll
index 6beccce9400e58..1c8725f52f7eb0 100644
--- a/llvm/test/CodeGen/AMDGPU/convergence-tokens.ll
+++ b/llvm/test/CodeGen/AMDGPU/convergence-tokens.ll
@@ -4,7 +4,7 @@
; CHECK-LABEL: name: basic_call
; CHECK: [[TOKEN:%[0-9]+]]{{[^ ]*}} = CONVERGENCECTRL_ENTRY
-; ISEL: {{.*}} SI_CALL_ISEL {{.*}}, @foo, [[TOKEN]], csr_amdgpu, {{.*}}
+; ISEL: {{.*}} SI_CALL_ISEL {{.*}}, @foo, csr_amdgpu, {{.*}}, implicit [[TOKEN]]
; DEADMI: {{.*}} SI_CALL {{.*}}, @foo, csr_amdgpu, {{.*}}, implicit [[TOKEN]]
; GISEL: {{.*}} G_SI_CALL {{.*}}, @foo, csr_amdgpu, {{.*}}, implicit [[TOKEN]]
define i32 @basic_call(i32 %src) #0 {
@@ -92,15 +92,9 @@ define i32 @nested(i32 %src) #0 {
ret i32 %sum
}
-; COM: FIXME: Tokens on tail-call have not been implemented for SelectionDAG
-; COM: yet; the corresponding checks have been commented out.
-;
; CHECK-LABEL: name: tail_call_void_func_void
-; GISEL: [[TOKEN:%[0-9]+]]{{[^ ]*}} = CONVERGENCECTRL_ENTRY
-; COM: CHECK: [[TOKEN:%[0-9]+]]{{[^ ]*}} = CONVERGENCECTRL_ENTRY
-; COM: ISEL: {{.*}} SI_CALL_ISEL {{.*}}, @external_void_func_void, [[TOKEN]], csr_amdgpu, {{.*}}
-; COM: DEADMI: {{.*}} SI_CALL {{.*}}, @external_void_func_void, csr_amdgpu, {{.*}}, implicit [[TOKEN]]
-; GISEL: {{.*}} SI_TCRETURN {{.*}}, @external_void_func_void, 0, csr_amdgpu, implicit [[TOKEN]]
+; CHECK: [[TOKEN:%[0-9]+]]{{[^ ]*}} = CONVERGENCECTRL_ENTRY
+; CHECK: {{.*}} SI_TCRETURN {{.*}}, @external_void_func_void, 0, csr_amdgpu, {{.*}}implicit [[TOKEN]]
define void @tail_call_void_func_void() #0 {
%t1 = call token @llvm.experimental.convergence.entry()
tail call void @external_void_func_void() [ "convergencectrl"(token %t1) ]
diff --git a/llvm/test/CodeGen/AMDGPU/isel-amdgpu-cs-chain-cc.ll b/llvm/test/CodeGen/AMDGPU/isel-amdgpu-cs-chain-cc.ll
index e015095a4884a5..ab160ffc10ed07 100644
--- a/llvm/test/CodeGen/AMDGPU/isel-amdgpu-cs-chain-cc.ll
+++ b/llvm/test/CodeGen/AMDGPU/isel-amdgpu-cs-chain-cc.ll
@@ -92,7 +92,6 @@ define amdgpu_cs_chain void @amdgpu_cs_chain_cc(<4 x i32> inreg %a, <4 x i32> %b
; DAGISEL-GFX11-NEXT: $vgpr5 = COPY [[COPY2]]
; DAGISEL-GFX11-NEXT: $vgpr6 = COPY [[COPY1]]
; DAGISEL-GFX11-NEXT: $vgpr7 = COPY [[COPY]]
- ; DAGISEL-GFX11-NEXT: [[DEF:%[0-9]+]]:sreg_64 = IMPLICIT_DEF
; DAGISEL-GFX11-NEXT: $sgpr30_sgpr31 = SI_CALL killed [[S_LOAD_DWORDX2_IMM]], @use, csr_amdgpu_si_gfx, implicit $vgpr0, implicit $vgpr1, implicit $vgpr2, implicit $vgpr3, implicit $vgpr4, implicit $vgpr5, implicit $vgpr6, implicit $vgpr7
; DAGISEL-GFX11-NEXT: ADJCALLSTACKDOWN 0, 0, implicit-def dead $scc, implicit-def $sgpr32, implicit $sgpr32
; DAGISEL-GFX11-NEXT: S_ENDPGM 0
@@ -122,7 +121,6 @@ define amdgpu_cs_chain void @amdgpu_cs_chain_cc(<4 x i32> inreg %a, <4 x i32> %b
; DAGISEL-GFX10-NEXT: $vgpr5 = COPY [[COPY2]]
; DAGISEL-GFX10-NEXT: $vgpr6 = COPY [[COPY1]]
; DAGISEL-GFX10-NEXT: $vgpr7 = COPY [[COPY]]
- ; DAGISEL-GFX10-NEXT: [[DEF:%[0-9]+]]:sreg_64 = IMPLICIT_DEF
; DAGISEL-GFX10-NEXT: $sgpr30_sgpr31 = SI_CALL killed [[S_LOAD_DWORDX2_IMM]], @use, csr_amdgpu_si_gfx, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit $vgpr0, implicit $vgpr1, implicit $vgpr2, implicit $vgpr3, implicit $vgpr4, implicit $vgpr5, implicit $vgpr6, implicit $vgpr7
; DAGISEL-GFX10-NEXT: ADJCALLSTACKDOWN 0, 0, implicit-def dead $scc, implicit-def $sgpr32, implicit $sgpr32
; DAGISEL-GFX10-NEXT: S_ENDPGM 0
@@ -234,7 +232,6 @@ define amdgpu_cs_chain void @amdgpu_cs_chain_cc_ptr(ptr inreg %a, ptr %b, ptr ad
; DAGISEL-GFX11-NEXT: $vgpr9 = COPY [[COPY2]]
; DAGISEL-GFX11-NEXT: $vgpr10 = COPY [[COPY1]]
; DAGISEL-GFX11-NEXT: $vgpr11 = COPY [[COPY]]
- ; DAGISEL-GFX11-NEXT: [[DEF:%[0-9]+]]:sreg_64 = IMPLICIT_DEF
; DAGISEL-GFX11-NEXT: $sgpr30_sgpr31 = SI_CALL killed [[S_LOAD_DWORDX2_IMM]], @use, csr_amdgpu_si_gfx, implicit $vgpr0, implicit $vgpr1, implicit $vgpr2, implicit $vgpr3, implicit $vgpr4, implicit $vgpr5, implicit $vgpr6, implicit $vgpr7, implicit $vgpr8, implicit $vgpr9, implicit $vgpr10, implicit $vgpr11
; DAGISEL-GFX11-NEXT: ADJCALLSTACKDOWN 0, 0, implicit-def dead $scc, implicit-def $sgpr32, implicit $sgpr32
; DAGISEL-GFX11-NEXT: S_ENDPGM 0
@@ -272,7 +269,6 @@ define amdgpu_cs_chain void @amdgpu_cs_chain_cc_ptr(ptr inreg %a, ptr %b, ptr ad
; DAGISEL-GFX10-NEXT: $vgpr9 = COPY [[COPY2]]
; DAGISEL-GFX10-NEXT: $vgpr10 = COPY [[COPY1]]
; DAGISEL-GFX10-NEXT: $vgpr11 = COPY [[COPY]]
- ; DAGISEL-GFX10-NEXT: [[DEF:%[0-9]+]]:sreg_64 = IMPLICIT_DEF
; DAGISEL-GFX10-NEXT: $sgpr30_sgpr31 = SI_CALL killed [[S_LOAD_DWORDX2_IMM]], @use, csr_amdgpu_si_gfx, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit $vgpr0, implicit $vgpr1, implicit $vgpr2, implicit $vgpr3, implicit $vgpr4, implicit $vgpr5, implicit $vgpr6, implicit $vgpr7, implicit $vgpr8, implicit $vgpr9, implicit $vgpr10, implicit $vgpr11
; DAGISEL-GFX10-NEXT: ADJCALLSTACKDOWN 0, 0, implicit-def dead $scc, implicit-def $sgpr32, implicit $sgpr32
; DAGISEL-GFX10-NEXT: S_ENDPGM 0
@@ -404,7 +400,6 @@ define amdgpu_cs_chain void @amdgpu_cs_chain_cc_struct( {ptr, i32, <4 x i32>} in
; DAGISEL-GFX11-NEXT: $vgpr11 = COPY [[COPY2]]
; DAGISEL-GFX11-NEXT: $vgpr12 = COPY [[COPY1]]
; DAGISEL-GFX11-NEXT: $vgpr13 = COPY [[COPY]]
- ; DAGISEL-GFX11-NEXT: [[DEF2:%[0-9]+]]:sreg_64 = IMPLICIT_DEF
; DAGISEL-GFX11-NEXT: $sgpr30_sgpr31 = SI_CALL killed [[S_LOAD_DWORDX2_IMM]], @use, csr_amdgpu_si_gfx, implicit $vgpr0, implicit $vgpr1, implicit $vgpr2, implicit $vgpr3, implicit $vgpr4, implicit $vgpr5, implicit $vgpr6, implicit $vgpr7, implicit $vgpr8, implicit $vgpr9, implicit $vgpr10, implicit $vgpr11, implicit $vgpr12, implicit $vgpr13
; DAGISEL-GFX11-NEXT: ADJCALLSTACKDOWN 0, 0, implicit-def dead $scc, implicit-def $sgpr32, implicit $sgpr32
; DAGISEL-GFX11-NEXT: S_ENDPGM 0
@@ -454,7 +449,6 @@ define amdgpu_cs_chain void @amdgpu_cs_chain_cc_struct( {ptr, i32, <4 x i32>} in
; DAGISEL-GFX10-NEXT: $vgpr11 = COPY [[COPY2]]
; DAGISEL-GFX10-NEXT: $vgpr12 = COPY [[COPY1]]
; DAGISEL-GFX10-NEXT: $vgpr13 = COPY [[COPY]]
- ; DAGISEL-GFX10-NEXT: [[DEF2:%[0-9]+]]:sreg_64 = IMPLICIT_DEF
; DAGISEL-GFX10-NEXT: $sgpr30_sgpr31 = SI_CALL killed [[S_LOAD_DWORDX2_IMM]], @use, csr_amdgpu_si_gfx, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit $vgpr0, implicit $vgpr1, implicit $vgpr2, implicit $vgpr3, implicit $vgpr4, implicit $vgpr5, implicit $vgpr6, implicit $vgpr7, implicit $vgpr8, implicit $vgpr9, implicit $vgpr10, implicit $vgpr11, implicit $vgpr12, implicit $vgpr13
; DAGISEL-GFX10-NEXT: ADJCALLSTACKDOWN 0, 0, implicit-def dead $scc, implicit-def $sgpr32, implicit $sgpr32
; DAGISEL-GFX10-NEXT: S_ENDPGM 0
@@ -506,7 +500,6 @@ define amdgpu_cs_chain void @amdgpu_cs_chain_cc_float(float inreg %a, float %b)
; DAGISEL-GFX11-NEXT: [[S_LOAD_DWORDX2_IMM:%[0-9]+]]:sreg_64_xexec = S_LOAD_DWORDX2_IMM killed [[SI_PC_ADD_REL_OFFSET]], 0, 0 :: (dereferenceable invariant load (s64) from got, addrspace 4)
; DAGISEL-GFX11-NEXT: $vgpr0 = COPY [[COPY1]]
; DAGISEL-GFX11-NEXT: $vgpr1 = COPY [[COPY]]
- ; DAGISEL-GFX11-NEXT: [[DEF:%[0-9]+]]:sreg_64 = IMPLICIT_DEF
; DAGISEL-GFX11-NEXT: $sgpr30_sgpr31 = SI_CALL killed [[S_LOAD_DWORDX2_IMM]], @use, csr_amdgpu_si_gfx, implicit $vgpr0, implicit $vgpr1
; DAGISEL-GFX11-NEXT: ADJCALLSTACKDOWN 0, 0, implicit-def dead $scc, implicit-def $sgpr32, implicit $sgpr32
; DAGISEL-GFX11-NEXT: S_ENDPGM 0
@@ -524,7 +517,6 @@ define amdgpu_cs_chain void @amdgpu_cs_chain_cc_float(float inreg %a, float %b)
; DAGISEL-GFX10-NEXT: $sgpr0_sgpr1_sgpr2_sgpr3 = COPY [[COPY2]]
; DAGISEL-GFX10-NEXT: $vgpr0 = COPY [[COPY1]]
; DAGISEL-GFX10-NEXT: $vgpr1 = COPY [[COPY]]
- ; DAGISEL-GFX10-NEXT: [[DEF:%[0-9]+]]:sreg_64 = IMPLICIT_DEF
; DAGISEL-GFX10-NEXT: $sgpr30_sgpr31 = SI_CALL killed [[S_LOAD_DWORDX2_IMM]], @use, csr_amdgpu_si_gfx, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit $vgpr0, implicit $vgpr1
; DAGISEL-GFX10-NEXT: ADJCALLSTACKDOWN 0, 0, implicit-def dead $scc, implicit-def $sgpr32, implicit $sgpr32
; DAGISEL-GFX10-NEXT: S_ENDPGM 0
@@ -576,7 +568,6 @@ define amdgpu_cs_chain void @amdgpu_cs_chain_cc_half(half inreg %a, half %b) {
; DAGISEL-GFX11-NEXT: [[S_LOAD_DWORDX2_IMM:%[0-9]+]]:sreg_64_xexec = S_LOAD_DWORDX2_IMM killed [[SI_PC_ADD_REL_OFFSET]], 0, 0 :: (dereferenceable invariant load (s64) from got, addrspace 4)
; DAGISEL-GFX11-NEXT: $vgpr0 = COPY [[COPY1]]
; DAGISEL-GFX11-NEXT: $vgpr1 = COPY [[COPY]]
- ; DAGISEL-GFX11-NEXT: [[DEF:%[0-9]+]]:sreg_64 = IMPLICIT_DEF
; DAGISEL-GFX11-NEXT: $sgpr30_sgpr31 = SI_CALL killed [[S_LOAD_DWORDX2_IMM]], @use, csr_amdgpu_si_gfx, implicit $vgpr0, implicit $vgpr1
; DAGISEL-GFX11-NEXT: ADJCALLSTACKDOWN 0, 0, implicit-def dead $scc, implicit-def $sgpr32, implicit $sgpr32
; DAGISEL-GFX11-NEXT: S_ENDPGM 0
@@ -594,7 +585,6 @@ define amdgpu_cs_chain void @amdgpu_cs_chain_cc_half(half inreg %a, half %b) {
; DAGISEL-GFX10-NEXT: $sgpr0_sgpr1_sgpr2_sgpr3 = COPY [[COPY2]]
; DAGISEL-GFX10-NEXT: $vgpr0 = COPY [[COPY1]]
; DAGISEL-GFX10-NEXT: $vgpr1 = COPY [[COPY]]
- ; DAGISEL-GFX10-NEXT: [[DEF:%[0-9]+]]:sreg_64 = IMPLICIT_DEF
; DAGISEL-GFX10-NEXT: $sgpr30_sgpr31 = SI_CALL killed [[S_LOAD_DWORDX2_IMM]], @use, csr_amdgpu_si_gfx, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit $vgpr0, implicit $vgpr1
; DAGISEL-GFX10-NEXT: ADJCALLSTACKDOWN 0, 0, implicit-def dead $scc, implicit-def $sgpr32, implicit $sgpr32
; DAGISEL-GFX10-NEXT: S_ENDPGM 0
@@ -646,7 +636,6 @@ define amdgpu_cs_chain void @amdgpu_cs_chain_cc_bfloat(bfloat inreg %a, bfloat %
; DAGISEL-GFX11-NEXT: [[S_LOAD_DWORDX2_IMM:%[0-9]+]]:sreg_64_xexec = S_LOAD_DWORDX2_IMM killed [[SI_PC_ADD_REL_OFFSET]], 0, 0 :: (dereferenceable invariant load (s64) from got, addrspace 4)
; DAGISEL-GFX11-NEXT: $vgpr0 = COPY [[COPY1]]
; DAGISEL-GFX11-NEXT: $vgpr1 = COPY [[COPY]]
- ; DAGISEL-GFX11-NEXT: [[DEF:%[0-9]+]]:sreg_64 = IMPLICIT_DEF
; DAGISEL-GFX11-NEXT: $sgpr30_sgpr31 = SI_CALL killed [[S_LOAD_DWORDX2_IMM]], @use, csr_amdgpu_si_gfx, implicit $vgpr0, implicit $vgpr1
; DAGISEL-GFX11-NEXT: ADJCALLSTACKDOWN 0, 0, implicit-def dead $scc, implicit-def $sgpr32, implicit $sgpr32
; DAGISEL-GFX11-NEXT: S_ENDPGM 0
@@ -664,7 +653,6 @@ define amdgpu_cs_chain void @amdgpu_cs_chain_cc_bfloat(bfloat inreg %a, bfloat %
; DAGISEL-GFX10-NEXT: $sgpr0_sgpr1_sgpr2_sgpr3 = COPY [[COPY2]]
; DAGISEL-GFX10-NEXT: $vgpr0 = COPY [[COPY1]]
; DAGISEL-GFX10-NEXT: $vgpr1 = COPY [[COPY]]
- ; DAGISEL-GFX10-NEXT: [[DEF:%[0-9]+]]:sreg_64 = IMPLICIT_DEF
; DAGISEL-GFX10-NEXT: $sgpr30_sgpr31 = SI_CALL killed [[S_LOAD_DWORDX2_IMM]], @use, csr_amdgpu_si_gfx, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit $vgpr0, implicit $vgpr1
; DAGISEL-GFX10-NEXT: ADJCALLSTACKDOWN 0, 0, implicit-def dead $scc, implicit-def $sgpr32, implicit $sgpr32
; DAGISEL-GFX10-NEXT: S_ENDPGM 0
@@ -716,7 +704,6 @@ define amdgpu_cs_chain void @amdgpu_cs_chain_cc_i16(i16 inreg %a, i16 %b) {
; DAGISEL-GFX11-NEXT: [[S_LOAD_DWORDX2_IMM:%[0-9]+]]:sreg_64_xexec = S_LOAD_DWORDX2_IMM killed [[SI_PC_ADD_REL_OFFSET]], 0, 0 :: (dereferenceable invariant load (s64) from got, addrspace 4)
; DAGISEL-GFX11-NEXT: $vgpr0 = COPY [[COPY1]]
; DAGISEL-GFX11-NEXT: $vgpr1 = COPY [[COPY]]
- ; DAGISEL-GFX11-NEXT: [[DEF:%[0-9]+]]:sreg_64 = IMPLICIT_DEF
; DAGISEL-GFX11-NEXT: $sgpr30_sgpr31 = SI_CALL killed [[S_LOAD_DWORDX2_IMM]], @use, csr_amdgpu_si_gfx, implicit $vgpr0, implicit $vgpr1
; DAGISEL-GFX11-NEXT: ADJCALLSTACKDOWN 0, 0, implicit-def dead $scc, implicit-def $sgpr32, implicit $sgpr32
; DAGISEL-GFX11-NEXT: S_ENDPGM 0
@@ -734,7 +721,6 @@ define amdgpu_cs_chain void @amdgpu_cs_chain_cc_i16(i16 inreg %a, i16 %b) {
; DAGISEL-GFX10-NEXT: $sgpr0_sgpr1_sgpr2_sgpr3 = COPY [[COPY2]]
; DAGISEL-GFX10-NEXT: $vgpr0 = COPY [[COPY1]]
; DAGISEL-GFX10-NEXT: $vgpr1 = COPY [[COPY]]
- ; DAGISEL-GFX10-NEXT: [[DEF:%[0-9]+]]:sreg_64 = IMPLICIT_DEF
; DAGISEL-GFX10-NEXT: $sgpr30_sgpr31 = SI_CALL killed [[S_LOAD_DWORDX2_IMM]], @use, csr_amdgpu_si_gfx, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit $vgpr0, implicit $vgpr1
; DAGISEL-GFX10-NEXT: ADJCALLSTACKDOWN 0, 0, implicit-def dead $scc, implicit-def $sgpr32, implicit $sgpr32
; DAGISEL-GFX10-NEXT: S_ENDPGM 0
@@ -870,7 +856,6 @@ define amdgpu_cs_chain void @amdgpu_cs_chain_cc_v16i16(<16 x i16> inreg %a, <16
; DAGISEL-GFX11-NEXT: $vgpr13 = COPY [[COPY2]]
; DAGISEL-GFX11-NEXT: $vgpr14 = COPY [[COPY1]]
; DAGISEL-GFX11-NEXT: $vgpr15 = COPY [[COPY]]
- ; DAGISEL-GFX11-NEXT: [[DEF:%[0-9]+]]:sreg_64 = IMPLICIT_DEF
; DAGISEL-GFX11-NEXT: $sgpr30_sgpr31 = SI_CALL killed [[S_LOAD_DWORDX2_IMM]], @use, csr_amdgpu_si_gfx, implicit $vgpr0, implicit $vgpr1, implicit $vgpr2, implicit $vgpr3, implicit $vgpr4, implicit $vgpr5, implicit $vgpr6, implicit $vgpr7, implicit $vgpr8, implicit $vgpr9, implicit $vgpr10, implicit $vgpr11, implicit $vgpr12, implicit $vgpr13, implicit $vgpr14, implicit $vgpr15
; DAGISEL-GFX11-NEXT: ADJCALLSTACKDOWN 0, 0, implicit-def dead $scc, implicit-def $sgpr32, implicit $sgpr32
; DAGISEL-GFX11-NEXT: S_ENDPGM 0
@@ -916,7 +901,6 @@ define amdgpu_cs_chain void @amdgpu_cs_chain_cc_v16i16(<16 x i16> inreg %a, <16
; DAGISEL-GFX10-NEXT: $vgpr13 = COPY [[COPY2]]
; DAGISEL-GFX10-NEXT: $vgpr14 = COPY [[COPY1]]
; DAGISEL-GFX10-NEXT: $vgpr15 = COPY [[COPY]]
- ; DAGISEL-GFX10-NEXT: [[DEF:%[0-9]+]]:sreg_64 = IMPLICIT_DEF
; DAGISEL-GFX10-NEXT: $sgpr30_sgpr31 = SI_CALL killed [[S_LOAD_DWORDX2_IMM]], @use, csr_amdgpu_si_gfx, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit $vgpr0, implicit $vgpr1, implicit $vgpr2, implicit $vgpr3, implicit $vgpr4, implicit $vgpr5, implicit $vgpr6, implicit $vgpr7, implicit $vgpr8, implicit $vgpr9, implicit $vgpr10, implicit $vgpr11, implicit $vgpr12, implicit $vgpr13, implicit $vgpr14, implicit $vgpr15
; DAGISEL-GFX10-NEXT: ADJCALLSTACKDOWN 0, 0, implicit-def dead $scc, implicit-def $sgpr32, implicit $sgpr32
; DAGISEL-GFX10-NEXT: S_ENDPGM 0
@@ -2480,7 +2464,6 @@ define amdgpu_cs_chain void @amdgpu_cs_chain_many_regs(<36 x i32> inreg %a, <128
; DAGISEL-GFX11-NEXT: $vgpr29 = COPY [[COPY134]]
; DAGISEL-GFX11-NEXT: $vgpr30 = COPY [[COPY133]]
; DAGISEL-GFX11-NEXT: $vgpr31 = COPY [[COPY132]]
- ; DAGISEL-GFX11-NEXT: [[DEF:%[0-9]+]]:sreg_64 = IMPLICIT_DEF
; DAGISEL-GFX11-NEXT: $sgpr30_sgpr31 = SI_CALL killed [[S_LOAD_DWORDX2_IMM]], @use, csr_amdgpu_si_gfx, implicit $vgpr0, implicit $vgpr1, implicit $vgpr2, implicit $vgpr3, implicit $vgpr4, implicit $vgpr5, implicit $vgpr6, implicit $vgpr7, implicit $vgpr8, implicit $vgpr9, implicit $vgpr10, implicit $vgpr11, implicit $vgpr12, implicit $vgpr13, implicit $vgpr14, implicit $vgpr15, implicit $vgpr16, implicit $vgpr17, implicit $vgpr18, implicit $vgpr19, implicit $vgpr20, implicit $vgpr21, implicit $vgpr22, implicit $vgpr23, implicit $vgpr24, implicit $vgpr25, implicit $vgpr26, implicit $vgpr27, implicit $vgpr28, implicit $vgpr29, implicit $vgpr30, implicit $vgpr31
; DAGISEL-GFX11-NEXT: ADJCALLSTACKDOWN 0, 528, implicit-def dead $scc, implicit-def $sgpr32, implicit $sgpr32
; DAGISEL-GFX11-NEXT: S_ENDPGM 0
@@ -2827,7 +2810,6 @@ define amdgpu_cs_chain void @amdgpu_cs_chain_many_regs(<36 x i32> inreg %a, <128
; DAGISEL-GFX10-NEXT: $vgpr29 = COPY [[COPY134]]
; DAGISEL-GFX10-NEXT: $vgpr30 = COPY [[COPY133]]
; DAGISEL-GFX10-NEXT: $vgpr31 = COPY [[COPY132]]
- ; DAGISEL-GFX10-NEXT: [[DEF:%[0-9]+]]:sreg_64 = IMPLICIT_DEF
; DAGISEL-GFX10-NEXT: $sgpr30_sgpr31 = SI_CALL killed [[S_LOAD_DWORDX2_IMM]], @use, csr_amdgpu_si_gfx, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit $vgpr0, implicit $vgpr1, implicit $vgpr2, implicit $vgpr3, implicit $vgpr4, implicit $vgpr5, implicit $vgpr6, implicit $vgpr7, implicit $vgpr8, implicit $vgpr9, implicit $vgpr10, implicit $vgpr11, implicit $vgpr12, implicit $vgpr13, implicit $vgpr14, implicit $vgpr15, implicit $vgpr16, implicit $vgpr17, implicit $vgpr18, implicit $vgpr19, implicit $vgpr20, implicit $vgpr21, implicit $vgpr22, implicit $vgpr23, implicit $vgpr24, implicit $vgpr25, implicit $vgpr26, implicit $vgpr27, implicit $vgpr28, implicit $vgpr29, implicit $vgpr30, implicit $vgpr31
; DAGISEL-GFX10-NEXT: ADJCALLSTACKDOWN 0, 528, implicit-def dead $scc, implicit-def $sgpr32, implicit $sgpr32
; DAGISEL-GFX10-NEXT: S_ENDPGM 0
diff --git a/llvm/test/Cod...
[truncated]
``````````
</details>
https://github.com/llvm/llvm-project/pull/86766
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