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core/intrinsics: Add mem_zero_volatile

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Yawning Angel
2021-10-31 21:37:22 +00:00
parent ff36bd3d85
commit 796a0c3968
5 changed files with 19 additions and 4 deletions
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src/llvm_backend_utility.cpp
+3 -3
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@@ -48,7 +48,7 @@ lbValue lb_correct_endianness(lbProcedure *p, lbValue value) {
return value;
}
void lb_mem_zero_ptr_internal(lbProcedure *p, LLVMValueRef ptr, LLVMValueRef len, unsigned alignment) {
void lb_mem_zero_ptr_internal(lbProcedure *p, LLVMValueRef ptr, LLVMValueRef len, unsigned alignment, bool is_volatile) {
bool is_inlinable = false;
i64 const_len = 0;
@@ -77,7 +77,7 @@ void lb_mem_zero_ptr_internal(lbProcedure *p, LLVMValueRef ptr, LLVMValueRef len
args[0] = LLVMBuildPointerCast(p->builder, ptr, types[0], "");
args[1] = LLVMConstInt(LLVMInt8TypeInContext(p->module->ctx), 0, false);
args[2] = LLVMBuildIntCast2(p->builder, len, types[1], /*signed*/false, "");
args[3] = LLVMConstInt(LLVMInt1TypeInContext(p->module->ctx), 0, false); // is_volatile parameter
args[3] = LLVMConstInt(LLVMInt1TypeInContext(p->module->ctx), is_volatile, false);
LLVMBuildCall(p->builder, ip, args, gb_count_of(args), "");
}
@@ -93,7 +93,7 @@ void lb_mem_zero_ptr(lbProcedure *p, LLVMValueRef ptr, Type *type, unsigned alig
{
// NOTE(bill): Enforce zeroing through memset to make sure padding is zeroed too
i32 sz = cast(i32)type_size_of(type);
lb_mem_zero_ptr_internal(p, ptr, lb_const_int(p->module, t_int, sz).value, alignment);
lb_mem_zero_ptr_internal(p, ptr, lb_const_int(p->module, t_int, sz).value, alignment, false);
}
break;
default: