[AArch64][SME2] Refine fcvtu/fcvts/scvtf/ucvtf (#77947)

Rename intrinsics for fcvtu to fcvtzu and fcvts to fcvtzs.

Use llvm_anyvector_ty for both multi vector returns and operands,
therefore the return and operands can be specified in the intrinsic
call, e.g.

@llvm.aarch64.sve.scvtf.x4.nxv4f32.nxv4i32

Author: MDevereau

clang/include/clang/Basic/TargetBuiltins.h

@@ -291,7 +291,9 @@ namespace clang {
     bool isZExtReturn() const { return Flags & IsZExtReturn; }
     bool isByteIndexed() const { return Flags & IsByteIndexed; }
     bool isOverloadNone() const { return Flags & IsOverloadNone; }
-    bool isOverloadWhile() const { return Flags & IsOverloadWhile; }
+    bool isOverloadWhileOrMultiVecCvt() const {
+      return Flags & IsOverloadWhileOrMultiVecCvt;
+    }
     bool isOverloadDefault() const { return !(Flags & OverloadKindMask); }
     bool isOverloadWhileRW() const { return Flags & IsOverloadWhileRW; }
     bool isOverloadCvt() const { return Flags & IsOverloadCvt; }

clang/include/clang/Basic/arm_sve.td

@@ -749,14 +749,14 @@ def SVCMPLS_WIDE_N : SInst<"svcmple_wide[_n_{d}]", "PPdj", "UcUsUi", MergeNone,
 ////////////////////////////////////////////////////////////////////////////////
 // While comparisons
 
-def SVWHILELE_S32 : SInst<"svwhilele_{d}[_{1}]", "Pkk", "PcPsPiPl",     MergeNone, "aarch64_sve_whilele", [IsOverloadWhile, IsStreamingCompatible]>;
-def SVWHILELE_S64 : SInst<"svwhilele_{d}[_{1}]", "Pll", "PcPsPiPl",     MergeNone, "aarch64_sve_whilele", [IsOverloadWhile, IsStreamingCompatible]>;
-def SVWHILELO_U32 : SInst<"svwhilelt_{d}[_{1}]", "Pmm", "PUcPUsPUiPUl", MergeNone, "aarch64_sve_whilelo", [IsOverloadWhile, IsStreamingCompatible]>;
-def SVWHILELO_U64 : SInst<"svwhilelt_{d}[_{1}]", "Pnn", "PUcPUsPUiPUl", MergeNone, "aarch64_sve_whilelo", [IsOverloadWhile, IsStreamingCompatible]>;
-def SVWHILELS_U32 : SInst<"svwhilele_{d}[_{1}]", "Pmm", "PUcPUsPUiPUl", MergeNone, "aarch64_sve_whilels", [IsOverloadWhile, IsStreamingCompatible]>;
-def SVWHILELS_U64 : SInst<"svwhilele_{d}[_{1}]", "Pnn", "PUcPUsPUiPUl", MergeNone, "aarch64_sve_whilels", [IsOverloadWhile, IsStreamingCompatible]>;
-def SVWHILELT_S32 : SInst<"svwhilelt_{d}[_{1}]", "Pkk", "PcPsPiPl",     MergeNone, "aarch64_sve_whilelt", [IsOverloadWhile, IsStreamingCompatible]>;
-def SVWHILELT_S64 : SInst<"svwhilelt_{d}[_{1}]", "Pll", "PcPsPiPl",     MergeNone, "aarch64_sve_whilelt", [IsOverloadWhile, IsStreamingCompatible]>;
+def SVWHILELE_S32 : SInst<"svwhilele_{d}[_{1}]", "Pkk", "PcPsPiPl",     MergeNone, "aarch64_sve_whilele", [IsOverloadWhileOrMultiVecCvt, IsStreamingCompatible]>;
+def SVWHILELE_S64 : SInst<"svwhilele_{d}[_{1}]", "Pll", "PcPsPiPl",     MergeNone, "aarch64_sve_whilele", [IsOverloadWhileOrMultiVecCvt, IsStreamingCompatible]>;
+def SVWHILELO_U32 : SInst<"svwhilelt_{d}[_{1}]", "Pmm", "PUcPUsPUiPUl", MergeNone, "aarch64_sve_whilelo", [IsOverloadWhileOrMultiVecCvt, IsStreamingCompatible]>;
+def SVWHILELO_U64 : SInst<"svwhilelt_{d}[_{1}]", "Pnn", "PUcPUsPUiPUl", MergeNone, "aarch64_sve_whilelo", [IsOverloadWhileOrMultiVecCvt, IsStreamingCompatible]>;
+def SVWHILELS_U32 : SInst<"svwhilele_{d}[_{1}]", "Pmm", "PUcPUsPUiPUl", MergeNone, "aarch64_sve_whilels", [IsOverloadWhileOrMultiVecCvt, IsStreamingCompatible]>;
+def SVWHILELS_U64 : SInst<"svwhilele_{d}[_{1}]", "Pnn", "PUcPUsPUiPUl", MergeNone, "aarch64_sve_whilels", [IsOverloadWhileOrMultiVecCvt, IsStreamingCompatible]>;
+def SVWHILELT_S32 : SInst<"svwhilelt_{d}[_{1}]", "Pkk", "PcPsPiPl",     MergeNone, "aarch64_sve_whilelt", [IsOverloadWhileOrMultiVecCvt, IsStreamingCompatible]>;
+def SVWHILELT_S64 : SInst<"svwhilelt_{d}[_{1}]", "Pll", "PcPsPiPl",     MergeNone, "aarch64_sve_whilelt", [IsOverloadWhileOrMultiVecCvt, IsStreamingCompatible]>;
 
 ////////////////////////////////////////////////////////////////////////////////
 // Counting bit
@@ -1336,14 +1336,14 @@ let TargetGuard = "sve2p1|sme2" in {
 ////////////////////////////////////////////////////////////////////////////////
 // SVE2 WhileGE/GT
 let TargetGuard = "sve2" in {
-def SVWHILEGE_S32 : SInst<"svwhilege_{d}[_{1}]", "Pkk", "PcPsPiPl",     MergeNone, "aarch64_sve_whilege", [IsOverloadWhile, IsStreamingCompatible]>;
-def SVWHILEGE_S64 : SInst<"svwhilege_{d}[_{1}]", "Pll", "PcPsPiPl",     MergeNone, "aarch64_sve_whilege", [IsOverloadWhile, IsStreamingCompatible]>;
-def SVWHILEGT_S32 : SInst<"svwhilegt_{d}[_{1}]", "Pkk", "PcPsPiPl",     MergeNone, "aarch64_sve_whilegt", [IsOverloadWhile, IsStreamingCompatible]>;
-def SVWHILEGT_S64 : SInst<"svwhilegt_{d}[_{1}]", "Pll", "PcPsPiPl",     MergeNone, "aarch64_sve_whilegt", [IsOverloadWhile, IsStreamingCompatible]>;
-def SVWHILEHI_U32 : SInst<"svwhilegt_{d}[_{1}]", "Pmm", "PUcPUsPUiPUl", MergeNone, "aarch64_sve_whilehi", [IsOverloadWhile, IsStreamingCompatible]>;
-def SVWHILEHI_U64 : SInst<"svwhilegt_{d}[_{1}]", "Pnn", "PUcPUsPUiPUl", MergeNone, "aarch64_sve_whilehi", [IsOverloadWhile, IsStreamingCompatible]>;
-def SVWHILEHS_U32 : SInst<"svwhilege_{d}[_{1}]", "Pmm", "PUcPUsPUiPUl", MergeNone, "aarch64_sve_whilehs", [IsOverloadWhile, IsStreamingCompatible]>;
-def SVWHILEHS_U64 : SInst<"svwhilege_{d}[_{1}]", "Pnn", "PUcPUsPUiPUl", MergeNone, "aarch64_sve_whilehs", [IsOverloadWhile, IsStreamingCompatible]>;
+def SVWHILEGE_S32 : SInst<"svwhilege_{d}[_{1}]", "Pkk", "PcPsPiPl",     MergeNone, "aarch64_sve_whilege", [IsOverloadWhileOrMultiVecCvt, IsStreamingCompatible]>;
+def SVWHILEGE_S64 : SInst<"svwhilege_{d}[_{1}]", "Pll", "PcPsPiPl",     MergeNone, "aarch64_sve_whilege", [IsOverloadWhileOrMultiVecCvt, IsStreamingCompatible]>;
+def SVWHILEGT_S32 : SInst<"svwhilegt_{d}[_{1}]", "Pkk", "PcPsPiPl",     MergeNone, "aarch64_sve_whilegt", [IsOverloadWhileOrMultiVecCvt, IsStreamingCompatible]>;
+def SVWHILEGT_S64 : SInst<"svwhilegt_{d}[_{1}]", "Pll", "PcPsPiPl",     MergeNone, "aarch64_sve_whilegt", [IsOverloadWhileOrMultiVecCvt, IsStreamingCompatible]>;
+def SVWHILEHI_U32 : SInst<"svwhilegt_{d}[_{1}]", "Pmm", "PUcPUsPUiPUl", MergeNone, "aarch64_sve_whilehi", [IsOverloadWhileOrMultiVecCvt, IsStreamingCompatible]>;
+def SVWHILEHI_U64 : SInst<"svwhilegt_{d}[_{1}]", "Pnn", "PUcPUsPUiPUl", MergeNone, "aarch64_sve_whilehi", [IsOverloadWhileOrMultiVecCvt, IsStreamingCompatible]>;
+def SVWHILEHS_U32 : SInst<"svwhilege_{d}[_{1}]", "Pmm", "PUcPUsPUiPUl", MergeNone, "aarch64_sve_whilehs", [IsOverloadWhileOrMultiVecCvt, IsStreamingCompatible]>;
+def SVWHILEHS_U64 : SInst<"svwhilege_{d}[_{1}]", "Pnn", "PUcPUsPUiPUl", MergeNone, "aarch64_sve_whilehs", [IsOverloadWhileOrMultiVecCvt, IsStreamingCompatible]>;
 }
 
 let TargetGuard = "sve2p1|sme2"  in {
@@ -2244,15 +2244,15 @@ let TargetGuard = "sme2" in {
   def SVCVT_F16_X2  : SInst<"svcvt_f16[_f32_x2]", "e2", "f", MergeNone, "aarch64_sve_fcvt_x2", [IsStreaming],[]>;
   def SVCVT_BF16_X2 : SInst<"svcvt_bf16[_f32_x2]", "$2", "f", MergeNone, "aarch64_sve_bfcvt_x2", [IsOverloadNone, IsStreaming],[]>;
 
-  def SVCVT_F32_U32_X2 : SInst<"svcvt_{d}[_u32_x2]", "2.d2.u", "f", MergeNone, "aarch64_sve_ucvtf_x2", [IsStreaming], []>;
-  def SVCVT_U32_F32_X2 : SInst<"svcvt_u32[_{d}_x2]", "2.u2.d", "f", MergeNone, "aarch64_sve_fcvtu_x2", [IsStreaming], []>;
-  def SVCVT_F32_S32_X2 : SInst<"svcvt_{d}[_s32_x2]", "2.d2.x", "f", MergeNone, "aarch64_sve_scvtf_x2", [IsStreaming], []>;
-  def SVCVT_S32_F32_X2 : SInst<"svcvt_s32[_{d}_x2]", "2.x2.d", "f", MergeNone, "aarch64_sve_fcvts_x2", [IsStreaming], []>;
+  def SVCVT_F32_U32_X2 : SInst<"svcvt_{d}[_u32_x2]", "2.d2.u", "f",  MergeNone, "aarch64_sve_ucvtf_x2",  [IsStreaming, IsOverloadWhileOrMultiVecCvt], []>;
+  def SVCVT_U32_F32_X2 : SInst<"svcvt_{d}[_f32_x2]", "2.d2.M", "Ui", MergeNone, "aarch64_sve_fcvtzu_x2", [IsStreaming, IsOverloadWhileOrMultiVecCvt], []>;
+  def SVCVT_F32_S32_X2 : SInst<"svcvt_{d}[_s32_x2]", "2.d2.x", "f",  MergeNone, "aarch64_sve_scvtf_x2",  [IsStreaming, IsOverloadWhileOrMultiVecCvt], []>;
+  def SVCVT_S32_F32_X2 : SInst<"svcvt_{d}[_f32_x2]", "2.d2.M", "i",  MergeNone, "aarch64_sve_fcvtzs_x2", [IsStreaming, IsOverloadWhileOrMultiVecCvt], []>;
 
-  def SVCVT_F32_U32_X4 : SInst<"svcvt_{d}[_u32_x4]", "4.d4.u", "f", MergeNone, "aarch64_sve_ucvtf_x4", [IsStreaming], []>;
-  def SVCVT_U32_F32_X4 : SInst<"svcvt_u32[_{d}_x4]", "4.u4.d", "f", MergeNone, "aarch64_sve_fcvtu_x4", [IsStreaming], []>;
-  def SVCVT_F32_S32_X4 : SInst<"svcvt_{d}[_s32_x4]", "4.d4.x", "f", MergeNone, "aarch64_sve_scvtf_x4", [IsStreaming], []>;
-  def SVCVT_S32_F32_X4 : SInst<"svcvt_s32[_{d}_x4]", "4.x4.d", "f", MergeNone, "aarch64_sve_fcvts_x4", [IsStreaming], []>;
+  def SVCVT_F32_U32_X4 : SInst<"svcvt_{d}[_u32_x4]", "4.d4.u", "f",  MergeNone, "aarch64_sve_ucvtf_x4",  [IsStreaming, IsOverloadWhileOrMultiVecCvt], []>;
+  def SVCVT_U32_F32_X4 : SInst<"svcvt_{d}[_f32_x4]", "4.d4.M", "Ui", MergeNone, "aarch64_sve_fcvtzu_x4", [IsStreaming, IsOverloadWhileOrMultiVecCvt], []>;
+  def SVCVT_F32_S32_X4 : SInst<"svcvt_{d}[_s32_x4]", "4.d4.x", "f",  MergeNone, "aarch64_sve_scvtf_x4",  [IsStreaming, IsOverloadWhileOrMultiVecCvt], []>;
+  def SVCVT_S32_F32_X4 : SInst<"svcvt_{d}[_f32_x4]", "4.d4.M", "i",  MergeNone, "aarch64_sve_fcvtzs_x4", [IsStreaming, IsOverloadWhileOrMultiVecCvt], []>;
 }
 
 //

clang/include/clang/Basic/arm_sve_sme_incl.td

@@ -194,41 +194,41 @@ def FirstSplatOperand         : FlagType<0x00000400>;
 // These flags are used to specify which scalar operand
 // needs to be duplicated/splatted into a vector.
 //      :                                     :
-def SplatOperandMask          : FlagType<0x00001C00>;
-def IsLoad                    : FlagType<0x00002000>;
-def IsStore                   : FlagType<0x00004000>;
-def IsGatherLoad              : FlagType<0x00008000>;
-def IsScatterStore            : FlagType<0x00010000>;
-def IsStructLoad              : FlagType<0x00020000>;
-def IsStructStore             : FlagType<0x00040000>;
-def IsZExtReturn              : FlagType<0x00080000>; // Return value is sign-extend by default
-def IsOverloadNone            : FlagType<0x00100000>; // Intrinsic does not take any overloaded types.
-def IsOverloadWhile           : FlagType<0x00200000>; // Use {default type, typeof(operand1)} as overloaded types.
-def IsOverloadWhileRW         : FlagType<0x00400000>; // Use {pred(default type), typeof(operand0)} as overloaded types.
-def IsOverloadCvt             : FlagType<0x00800000>; // Use {typeof(operand0), typeof(last operand)} as overloaded types.
-def OverloadKindMask          : FlagType<0x00E00000>; // When the masked values are all '0', the default type is used as overload type.
-def IsByteIndexed             : FlagType<0x01000000>;
-def IsAppendSVALL             : FlagType<0x02000000>; // Appends SV_ALL as the last operand.
-def IsInsertOp1SVALL          : FlagType<0x04000000>; // Inserts SV_ALL as the second operand.
-def IsPrefetch                : FlagType<0x08000000>; // Contiguous prefetches.
-def IsGatherPrefetch          : FlagType<0x10000000>;
-def ReverseCompare            : FlagType<0x20000000>; // Compare operands must be swapped.
-def ReverseUSDOT              : FlagType<0x40000000>; // Unsigned/signed operands must be swapped.
-def IsUndef                   : FlagType<0x80000000>; // Codegen `undef` of given type.
-def IsTupleCreate             : FlagType<0x100000000>;
-def IsTupleGet                : FlagType<0x200000000>;
-def IsTupleSet                : FlagType<0x400000000>;
-def ReverseMergeAnyBinOp      : FlagType<0x800000000>; // e.g. Implement SUBR_X using SUB_X.
-def ReverseMergeAnyAccOp      : FlagType<0x1000000000>; // e.g. Implement MSB_X using MLS_X.
-def IsStreaming               : FlagType<0x2000000000>;
-def IsStreamingCompatible     : FlagType<0x4000000000>;
-def IsReadZA                  : FlagType<0x8000000000>;
-def IsWriteZA                 : FlagType<0x10000000000>;
-def IsReductionQV             : FlagType<0x20000000000>;
-def IsStreamingOrSVE2p1       : FlagType<0x40000000000>; // Use for intrinsics that are common between sme/sme2 and sve2p1.
-def IsInZA                    : FlagType<0x80000000000>;
-def IsOutZA                   : FlagType<0x100000000000>;
-def IsInOutZA                 : FlagType<0x200000000000>;
+def SplatOperandMask                : FlagType<0x00001C00>;
+def IsLoad                          : FlagType<0x00002000>;
+def IsStore                         : FlagType<0x00004000>;
+def IsGatherLoad                    : FlagType<0x00008000>;
+def IsScatterStore                  : FlagType<0x00010000>;
+def IsStructLoad                    : FlagType<0x00020000>;
+def IsStructStore                   : FlagType<0x00040000>;
+def IsZExtReturn                    : FlagType<0x00080000>; // Return value is sign-extend by default
+def IsOverloadNone                  : FlagType<0x00100000>; // Intrinsic does not take any overloaded types.
+def IsOverloadWhileOrMultiVecCvt    : FlagType<0x00200000>; // Use {default type, typeof(operand1)} as overloaded types.
+def IsOverloadWhileRW               : FlagType<0x00400000>; // Use {pred(default type), typeof(operand0)} as overloaded types.
+def IsOverloadCvt                   : FlagType<0x00800000>; // Use {typeof(operand0), typeof(last operand)} as overloaded types.
+def OverloadKindMask                : FlagType<0x00E00000>; // When the masked values are all '0', the default type is used as overload type.
+def IsByteIndexed                   : FlagType<0x01000000>;
+def IsAppendSVALL                   : FlagType<0x02000000>; // Appends SV_ALL as the last operand.
+def IsInsertOp1SVALL                : FlagType<0x04000000>; // Inserts SV_ALL as the second operand.
+def IsPrefetch                      : FlagType<0x08000000>; // Contiguous prefetches.
+def IsGatherPrefetch                : FlagType<0x10000000>;
+def ReverseCompare                  : FlagType<0x20000000>; // Compare operands must be swapped.
+def ReverseUSDOT                    : FlagType<0x40000000>; // Unsigned/signed operands must be swapped.
+def IsUndef                         : FlagType<0x80000000>; // Codegen `undef` of given type.
+def IsTupleCreate                   : FlagType<0x100000000>;
+def IsTupleGet                      : FlagType<0x200000000>;
+def IsTupleSet                      : FlagType<0x400000000>;
+def ReverseMergeAnyBinOp            : FlagType<0x800000000>; // e.g. Implement SUBR_X using SUB_X.
+def ReverseMergeAnyAccOp            : FlagType<0x1000000000>; // e.g. Implement MSB_X using MLS_X.
+def IsStreaming                     : FlagType<0x2000000000>;
+def IsStreamingCompatible           : FlagType<0x4000000000>;
+def IsReadZA                        : FlagType<0x8000000000>;
+def IsWriteZA                       : FlagType<0x10000000000>;
+def IsReductionQV                   : FlagType<0x20000000000>;
+def IsStreamingOrSVE2p1             : FlagType<0x40000000000>; // Use for intrinsics that are common between sme/sme2 and sve2p1.
+def IsInZA                          : FlagType<0x80000000000>;
+def IsOutZA                         : FlagType<0x100000000000>;
+def IsInOutZA                       : FlagType<0x200000000000>;
 
 // These must be kept in sync with the flags in include/clang/Basic/TargetBuiltins.h
 class ImmCheckType<int val> {

clang/lib/CodeGen/CGBuiltin.cpp

@@ -10056,7 +10056,7 @@ CodeGenFunction::getSVEOverloadTypes(const SVETypeFlags &TypeFlags,
 
   llvm::Type *DefaultType = getSVEType(TypeFlags);
 
-  if (TypeFlags.isOverloadWhile())
+  if (TypeFlags.isOverloadWhileOrMultiVecCvt())
     return {DefaultType, Ops[1]->getType()};
 
   if (TypeFlags.isOverloadWhileRW())