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Allow use of pointers in vectors.

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This commit is contained in:
Christoffer Lerno
2023-09-13 10:47:34 +02:00
committed by Christoffer Lerno
parent 1d04b70efe
commit b2ac4b4253
9 changed files with 149 additions and 31 deletions
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42
src/compiler/llvm_codegen_expr.c
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@@ -722,13 +722,17 @@ static inline void llvm_emit_pointer_offset(GenContext *c, BEValue *value, Expr
llvm_emit_expr(c, &offset, offset_expr);
llvm_value_rvalue(c, &offset);
LLVMTypeRef element_type;
ArraySize vec_len = pointer->type->type_kind == TYPE_VECTOR ? pointer->type->array.len : 0;
if (expr->pointer_offset_expr.raw_offset)
{
// COERCE UPDATE bitcast removed, check for ways to optimize
value->value = llvm_emit_pointer_gep_raw(c, c->byte_type, value->value, offset.value);
return;
element_type = vec_len ? LLVMVectorType(c->byte_type, vec_len) : c->byte_type;
}
value->value = llvm_emit_pointer_gep_raw(c, llvm_get_pointee_type(c, pointer->type), value->value, offset.value);
else
{
element_type = llvm_get_pointee_type(c, vec_len ? pointer->type->array.base : pointer->type);
}
value->value = llvm_emit_pointer_gep_raw(c, element_type, value->value, offset.value);
}
@@ -4072,7 +4076,35 @@ void llvm_emit_binary(GenContext *c, BEValue *be_value, Expr *expr, BEValue *lhs
val = llvm_emit_mult_int(c, lhs_type, lhs_value, rhs_value, expr->span);
break;
case BINARYOP_SUB:
if (lhs_type->type_kind == TYPE_POINTER)
if (type_is_pointer_vector(lhs_type))
{
Type *element_type = lhs_type->array.base->pointer;
unsigned len = lhs_type->array.len;
LLVMTypeRef int_vec_type = llvm_get_type(c, type_get_vector(type_isz, len));
if (lhs_type == rhs_type)
{
val = LLVMBuildSub(c->builder, LLVMBuildPtrToInt(c->builder, lhs_value, int_vec_type, ""),
LLVMBuildPtrToInt(c->builder, rhs_value, int_vec_type, ""), "");
LLVMValueRef slots[256];
LLVMValueRef *ptr = slots;
if (len > 256)
{
ptr = MALLOC(len * sizeof(LLVMValueRef));
}
AlignSize diff = type_abi_alignment(element_type);
for (ArraySize i = 0; i < len; i++)
{
ptr[i] = llvm_const_int(c, type_isz, diff);
}
LLVMValueRef divisor = LLVMConstVector(ptr, len);
val = LLVMBuildExactSDiv(c->builder, val, divisor, "");
break;
}
rhs_value = LLVMBuildNeg(c->builder, rhs_value, "");
val = llvm_emit_pointer_gep_raw(c, llvm_get_type(c, element_type), lhs_value, rhs_value);
break;
}
else if (lhs_type->type_kind == TYPE_POINTER)
{
if (lhs_type == rhs_type)
{