LSRA: Make genRegMask() return regMaskTP (#102783)

* genRegMask

* Make genRegMask() return regMaskTP, introduce genSingleTypeRegMask() for LSRA

* Make allFloat,allMask regMaskTP instead of `SingleTypeRegSet` so no affect on non-LSRA code

* jit format

* fix build errors

* fix loongarch and risc

* fix a typo

* move more `genSingleTypeRegMask()`

* jit format

* Make genRegMask() use genSingleType*()

* fix build errors

* jit format

Author: kunalspathak

src/coreclr/jit/codegeninterface.h

@@ -75,31 +75,31 @@ class CodeGenInterface
     }
 
 #if defined(TARGET_AMD64)
-    SingleTypeRegSet rbmAllFloat;
-    SingleTypeRegSet rbmFltCalleeTrash;
+    regMaskTP rbmAllFloat;
+    regMaskTP rbmFltCalleeTrash;
 
-    FORCEINLINE SingleTypeRegSet get_RBM_ALLFLOAT() const
+    FORCEINLINE regMaskTP get_RBM_ALLFLOAT() const
     {
         return this->rbmAllFloat;
     }
-    FORCEINLINE SingleTypeRegSet get_RBM_FLT_CALLEE_TRASH() const
+    FORCEINLINE regMaskTP get_RBM_FLT_CALLEE_TRASH() const
     {
         return this->rbmFltCalleeTrash;
     }
 #endif // TARGET_AMD64
 
 #if defined(TARGET_XARCH)
-    SingleTypeRegSet rbmAllMask;
-    SingleTypeRegSet rbmMskCalleeTrash;
+    regMaskTP rbmAllMask;
+    regMaskTP rbmMskCalleeTrash;
 
     // Call this function after the equivalent fields in Compiler have been initialized.
     void CopyRegisterInfo();
 
-    FORCEINLINE SingleTypeRegSet get_RBM_ALLMASK() const
+    FORCEINLINE regMaskTP get_RBM_ALLMASK() const
     {
         return this->rbmAllMask;
     }
-    FORCEINLINE SingleTypeRegSet get_RBM_MSK_CALLEE_TRASH() const
+    FORCEINLINE regMaskTP get_RBM_MSK_CALLEE_TRASH() const
     {
         return this->rbmMskCalleeTrash;
     }

src/coreclr/jit/compiler.cpp

@@ -3485,12 +3485,12 @@ void Compiler::compInitOptions(JitFlags* jitFlags)
     // Make sure we copy the register info and initialize the
     // trash regs after the underlying fields are initialized
 
-    const SingleTypeRegSet vtCalleeTrashRegs[TYP_COUNT]{
+    const regMaskTP vtCalleeTrashRegs[TYP_COUNT]{
 #define DEF_TP(tn, nm, jitType, sz, sze, asze, st, al, regTyp, regFld, csr, ctr, tf) ctr,
 #include "typelist.h"
 #undef DEF_TP
     };
-    memcpy(varTypeCalleeTrashRegs, vtCalleeTrashRegs, sizeof(SingleTypeRegSet) * TYP_COUNT);
+    memcpy(varTypeCalleeTrashRegs, vtCalleeTrashRegs, sizeof(regMaskTP) * TYP_COUNT);
 
     codeGen->CopyRegisterInfo();
 #endif // TARGET_XARCH

src/coreclr/jit/compiler.h

@@ -11246,8 +11246,8 @@ class Compiler
     //
     // Users of these values need to define four accessor functions:
     //
-    //    SingleTypeRegSet get_RBM_ALLFLOAT();
-    //    SingleTypeRegSet get_RBM_FLT_CALLEE_TRASH();
+    //    regMaskTP get_RBM_ALLFLOAT();
+    //    regMaskTP get_RBM_FLT_CALLEE_TRASH();
     //    unsigned get_CNT_CALLEE_TRASH_FLOAT();
     //    unsigned get_AVAILABLE_REG_COUNT();
     //
@@ -11256,16 +11256,16 @@ class Compiler
     // This was done to avoid polluting all `targetXXX.h` macro definitions with a compiler parameter, where only
     // TARGET_AMD64 requires one.
     //
-    SingleTypeRegSet rbmAllFloat;
-    SingleTypeRegSet rbmFltCalleeTrash;
-    unsigned         cntCalleeTrashFloat;
+    regMaskTP rbmAllFloat;
+    regMaskTP rbmFltCalleeTrash;
+    unsigned  cntCalleeTrashFloat;
 
 public:
-    FORCEINLINE SingleTypeRegSet get_RBM_ALLFLOAT() const
+    FORCEINLINE regMaskTP get_RBM_ALLFLOAT() const
     {
         return this->rbmAllFloat;
     }
-    FORCEINLINE SingleTypeRegSet get_RBM_FLT_CALLEE_TRASH() const
+    FORCEINLINE regMaskTP get_RBM_FLT_CALLEE_TRASH() const
     {
         return this->rbmFltCalleeTrash;
     }
@@ -11284,8 +11284,8 @@ class Compiler
     //
     // Users of these values need to define four accessor functions:
     //
-    //    SingleTypeRegSet get_RBM_ALLMASK();
-    //    SingleTypeRegSet get_RBM_MSK_CALLEE_TRASH();
+    //    regMaskTP get_RBM_ALLMASK();
+    //    regMaskTP get_RBM_MSK_CALLEE_TRASH();
     //    unsigned get_CNT_CALLEE_TRASH_MASK();
     //    unsigned get_AVAILABLE_REG_COUNT();
     //
@@ -11294,17 +11294,17 @@ class Compiler
     // This was done to avoid polluting all `targetXXX.h` macro definitions with a compiler parameter, where only
     // TARGET_XARCH requires one.
     //
-    SingleTypeRegSet rbmAllMask;
-    SingleTypeRegSet rbmMskCalleeTrash;
-    unsigned         cntCalleeTrashMask;
-    SingleTypeRegSet varTypeCalleeTrashRegs[TYP_COUNT];
+    regMaskTP rbmAllMask;
+    regMaskTP rbmMskCalleeTrash;
+    unsigned  cntCalleeTrashMask;
+    regMaskTP varTypeCalleeTrashRegs[TYP_COUNT];
 
 public:
-    FORCEINLINE SingleTypeRegSet get_RBM_ALLMASK() const
+    FORCEINLINE regMaskTP get_RBM_ALLMASK() const
     {
         return this->rbmAllMask;
     }
-    FORCEINLINE SingleTypeRegSet get_RBM_MSK_CALLEE_TRASH() const
+    FORCEINLINE regMaskTP get_RBM_MSK_CALLEE_TRASH() const
     {
         return this->rbmMskCalleeTrash;
     }