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General clean up of LLVM*GEP2 code

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This commit is contained in:
gingerBill
2022-08-10 11:36:25 +01:00
parent 812823cad8
commit 84f9fb706b
4 changed files with 84 additions and 77 deletions
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src/llvm_backend_general.cpp
+39
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@@ -212,6 +212,45 @@ void lb_loop_end(lbProcedure *p, lbLoopData const &data) {
}
// This emits a GEP at 0, index
lbValue lb_emit_epi(lbProcedure *p, lbValue const &value, isize index) {
GB_ASSERT(is_type_pointer(value.type));
Type *type = type_deref(value.type);
LLVMValueRef indices[2] = {
LLVMConstInt(lb_type(p->module, t_int), 0, false),
LLVMConstInt(lb_type(p->module, t_int), cast(unsigned long long)index, false),
};
LLVMTypeRef llvm_type = lb_type(p->module, type);
lbValue res = {};
Type *ptr = base_array_type(type);
res.type = alloc_type_pointer(ptr);
if (LLVMIsConstant(value.value)) {
res.value = LLVMConstGEP2(llvm_type, value.value, indices, gb_count_of(indices));
} else {
res.value = LLVMBuildGEP2(p->builder, llvm_type, value.value, indices, gb_count_of(indices), "");
}
return res;
}
// This emits a GEP at 0, index
lbValue lb_emit_epi(lbModule *m, lbValue const &value, isize index) {
GB_ASSERT(is_type_pointer(value.type));
GB_ASSERT(LLVMIsConstant(value.value));
Type *type = type_deref(value.type);
LLVMValueRef indices[2] = {
LLVMConstInt(lb_type(m, t_int), 0, false),
LLVMConstInt(lb_type(m, t_int), cast(unsigned long long)index, false),
};
lbValue res = {};
Type *ptr = base_array_type(type);
res.type = alloc_type_pointer(ptr);
res.value = LLVMConstGEP2(lb_type(m, type), value.value, indices, gb_count_of(indices));
return res;
}
LLVMValueRef llvm_zero(lbModule *m) {
return LLVMConstInt(lb_type(m, t_int), 0, false);
}