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Force memset instead of store zeroinitializer when the value is large

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gingerBill
2022-07-24 20:22:50 +01:00
parent c8ab1b7ee1
commit e6ab4f4856
4 changed files with 19 additions and 8 deletions
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src/llvm_backend.hpp
+4
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@@ -482,7 +482,11 @@ LLVMValueRef llvm_basic_shuffle(lbProcedure *p, LLVMValueRef vector, LLVMValueRe
void lb_mem_copy_overlapping(lbProcedure *p, lbValue dst, lbValue src, lbValue len, bool is_volatile=false);
void lb_mem_copy_non_overlapping(lbProcedure *p, lbValue dst, lbValue src, lbValue len, bool is_volatile=false);
LLVMValueRef lb_mem_zero_ptr_internal(lbProcedure *p, LLVMValueRef ptr, LLVMValueRef len, unsigned alignment, bool is_volatile);
i64 lb_max_zero_init_size(void) {
return cast(i64)(4*build_context.word_size);
}
#define LB_STARTUP_RUNTIME_PROC_NAME "__$startup_runtime"
#define LB_STARTUP_TYPE_INFO_PROC_NAME "__$startup_type_info"