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[mono] Simplify of OffsetToStringData as it's done on coreclr #93987

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merged 7 commits into from
Oct 26, 2023
Merged

[mono] Simplify of OffsetToStringData as it's done on coreclr #93987

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a1553f0
Change implementation of OffsetToStringData as it's done on coreclr
thaystg Oct 25, 2023
ac114c4
Fix comment
thaystg Oct 25, 2023
385991b
Remove more comments
thaystg Oct 25, 2023
9f52da8
completely remove the comments
thaystg Oct 25, 2023
f6a1028
Update RuntimeHelpers.Mono.cs
thaystg Oct 25, 2023
b94d307
Addressing comments
thaystg Oct 26, 2023
9695c42
Addressing @lambdageek comment.
thaystg Oct 26, 2023
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6 changes: 1 addition & 5 deletions src/mono/System.Private.CoreLib/src/System/Runtime/CompilerServices/RuntimeHelpers.Mono.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -30,11 +30,7 @@ public static void InitializeArray(Array array, RuntimeFieldHandle fldHandle)
}

[Obsolete("OffsetToStringData has been deprecated. Use string.GetPinnableReference() instead.")]
public static int OffsetToStringData
{
[Intrinsic]
get => OffsetToStringData;
}
public static int OffsetToStringData => string.OFFSET_TO_STRING;

[MethodImplAttribute(MethodImplOptions.InternalCall)]
private static extern int InternalGetHashCode(object? o);
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6 changes: 6 additions & 0 deletions src/mono/System.Private.CoreLib/src/System/String.Mono.cs
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Expand Up @@ -30,6 +30,12 @@ public static string IsInterned(string str)
[MethodImplAttribute(MethodImplOptions.InternalCall)]
private static extern string InternalIntern(string str);

#if TARGET_64BIT
internal const int OFFSET_TO_STRING = 20;
#else
internal const int OFFSET_TO_STRING = 12;
#endif

// TODO: Should be pointing to Buffer instead
#region Runtime method-to-ir dependencies

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11 changes: 1 addition & 10 deletions src/mono/mono/mini/interp/transform.c
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Expand Up @@ -2305,16 +2305,7 @@ interp_handle_intrinsics (TransformData *td, MonoMethod *target_method, MonoClas
*op = MINT_INITBLK;
}
} else if (in_corlib && !strcmp (klass_name_space, "System.Runtime.CompilerServices") && !strcmp (klass_name, "RuntimeHelpers")) {
if (!strcmp (tm, "get_OffsetToStringData")) {
g_assert (csignature->param_count == 0);
int offset = MONO_STRUCT_OFFSET (MonoString, chars);
interp_add_ins (td, MINT_LDC_I4);
WRITE32_INS (td->last_ins, 0, &offset);
push_simple_type (td, STACK_TYPE_I4);
interp_ins_set_dreg (td->last_ins, td->sp [-1].local);
td->ip += 5;
return TRUE;
} else if (!strcmp (tm, "GetHashCode") || !strcmp (tm, "InternalGetHashCode")) {
if (!strcmp (tm, "GetHashCode") || !strcmp (tm, "InternalGetHashCode")) {
*op = MINT_INTRINS_GET_HASHCODE;
} else if (!strcmp (tm, "TryGetHashCode")) {
*op = MINT_INTRINS_TRY_GET_HASHCODE;
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5 changes: 1 addition & 4 deletions src/mono/mono/mini/intrinsics.c
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Expand Up @@ -935,10 +935,7 @@ mini_emit_inst_for_method (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSign
} else
return NULL;
} else if (cmethod->klass == runtime_helpers_class) {
if (strcmp (cmethod->name, "get_OffsetToStringData") == 0 && fsig->param_count == 0) {
EMIT_NEW_ICONST (cfg, ins, MONO_STRUCT_OFFSET (MonoString, chars));
return ins;
} else if (!strcmp (cmethod->name, "GetRawData")) {
if (!strcmp (cmethod->name, "GetRawData")) {
int dreg = alloc_preg (cfg);
EMIT_NEW_BIALU_IMM (cfg, ins, OP_PADD_IMM, dreg, args [0]->dreg, MONO_ABI_SIZEOF (MonoObject));
return ins;
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