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[RISCV] Rename vcix_state register to sf_vcix_state. NFC (#106995)

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Since it's SiFive VCIX specific register, it's better to have a prefix
so that it's more understandable.
This commit is contained in:
Brandon Wu 2024-09-03 15:55:39 +08:00 committed by GitHub
parent 00c198b2ca
commit 7e6bad112c
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GPG Key ID: B5690EEEBB952194
4 changed files with 9 additions and 9 deletions
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10
llvm/lib/Target/RISCV/RISCVInstrInfoXSf.td
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@ -308,7 +308,7 @@ class VPseudoVC_V_XVV<Operand OpClass, VReg RDClass, VReg RS2Class,
multiclass VPseudoVC_X<LMULInfo m, DAGOperand RS1Class,
Operand OpClass = payload2> {
let VLMul = m.value in {
let Defs = [VCIX_STATE], Uses = [VCIX_STATE] in {
let Defs = [SF_VCIX_STATE], Uses = [SF_VCIX_STATE] in {
def "PseudoVC_" # NAME # "_SE_" # m.MX
: VPseudoVC_X<OpClass, RS1Class>,
Sched<[!cast<SchedWrite>("WriteVC_" # NAME # "_" # m.MX)]>;
@ -325,7 +325,7 @@ multiclass VPseudoVC_X<LMULInfo m, DAGOperand RS1Class,
multiclass VPseudoVC_XV<LMULInfo m, DAGOperand RS1Class,
Operand OpClass = payload2> {
let VLMul = m.value in {
let Defs = [VCIX_STATE], Uses = [VCIX_STATE] in {
let Defs = [SF_VCIX_STATE], Uses = [SF_VCIX_STATE] in {
def "PseudoVC_" # NAME # "_SE_" # m.MX
: VPseudoVC_XV<OpClass, m.vrclass, RS1Class>,
Sched<[!cast<SchedWrite>("WriteVC_" # NAME # "_" # m.MX)]>;
@ -342,7 +342,7 @@ multiclass VPseudoVC_XV<LMULInfo m, DAGOperand RS1Class,
multiclass VPseudoVC_XVV<LMULInfo m, DAGOperand RS1Class,
Operand OpClass = payload2> {
let VLMul = m.value in {
let Defs = [VCIX_STATE], Uses = [VCIX_STATE] in {
let Defs = [SF_VCIX_STATE], Uses = [SF_VCIX_STATE] in {
def "PseudoVC_" # NAME # "_SE_" # m.MX
: VPseudoVC_XVV<OpClass, m.vrclass, m.vrclass, RS1Class>,
Sched<[!cast<SchedWrite>("WriteVC_" # NAME # "_" # m.MX)]>;
@ -359,12 +359,12 @@ multiclass VPseudoVC_XVV<LMULInfo m, DAGOperand RS1Class,
multiclass VPseudoVC_XVW<LMULInfo m, DAGOperand RS1Class,
Operand OpClass = payload2> {
let VLMul = m.value in {
let Defs = [VCIX_STATE], Uses = [VCIX_STATE] in
let Defs = [SF_VCIX_STATE], Uses = [SF_VCIX_STATE] in
def "PseudoVC_" # NAME # "_SE_" # m.MX
: VPseudoVC_XVV<OpClass, m.wvrclass, m.vrclass, RS1Class>,
Sched<[!cast<SchedWrite>("WriteVC_" # NAME # "_" # m.MX)]>;
let Constraints = "@earlyclobber $rd, $rd = $rs3" in {
let Defs = [VCIX_STATE], Uses = [VCIX_STATE] in
let Defs = [SF_VCIX_STATE], Uses = [SF_VCIX_STATE] in
def "PseudoVC_V_" # NAME # "_SE_" # m.MX
: VPseudoVC_V_XVV<OpClass, m.wvrclass, m.vrclass, RS1Class>,
Sched<[!cast<SchedWrite>("WriteVC_V_" # NAME # "_" # m.MX)]>;

2
llvm/lib/Target/RISCV/RISCVRegisterInfo.cpp
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@ -145,7 +145,7 @@ BitVector RISCVRegisterInfo::getReservedRegs(const MachineFunction &MF) const {
markSuperRegs(Reserved, RISCV::FFLAGS);
// SiFive VCIX state registers.
markSuperRegs(Reserved, RISCV::VCIX_STATE);
markSuperRegs(Reserved, RISCV::SF_VCIX_STATE);
if (MF.getFunction().getCallingConv() == CallingConv::GRAAL) {
if (Subtarget.hasStdExtE())

4
llvm/lib/Target/RISCV/RISCVRegisterInfo.td
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@ -664,5 +664,5 @@ def FRM : RISCVReg<0, "frm">;
// Shadow Stack register
def SSP : RISCVReg<0, "ssp">;
// Dummy VCIX state register
def VCIX_STATE : RISCVReg<0, "vcix_state">;
// Dummy SiFive VCIX state register
def SF_VCIX_STATE : RISCVReg<0, "sf_vcix_state">;

2
llvm/test/CodeGen/RISCV/rvv/copyprop.mir
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@ -47,7 +47,7 @@ body: |
%22:vr = PseudoVMSNE_VI_M1 %3, 0, 1, 6 /* e64 */
$v0 = COPY %22
%25:vrnov0 = PseudoVMERGE_VIM_M1 undef $noreg, %17, -1, $v0, 1, 6 /* e64 */
%29:vr = PseudoVC_V_X_SE_M1 3, 31, %2, 1, 6 /* e64 */, implicit-def dead $vcix_state, implicit $vcix_state
%29:vr = PseudoVC_V_X_SE_M1 3, 31, %2, 1, 6 /* e64 */, implicit-def dead $sf_vcix_state, implicit $sf_vcix_state
%30:vr = PseudoVMV_V_I_M1 undef $noreg, 0, 1, 6 /* e64 */, 0
BGEU %1, $x0, %bb.2