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/*===-- object.c - tool for testing libLLVM and llvm-c API ----------------===*\
|* *|
|* Part of the LLVM Project, under the Apache License v2.0 with LLVM *|
|* Exceptions. *|
|* See https://llvm.org/LICENSE.txt for license information. *|
|* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception *|
|* *|
|*===----------------------------------------------------------------------===*|
|* *|
|* This file implements the --add-named-metadata-operand and --set-metadata *|
|* commands in llvm-c-test. *|
|* *|
\*===----------------------------------------------------------------------===*/
#include "llvm-c-test.h"
#include "llvm-c/Types.h"
#include <assert.h>
#include <string.h>
int llvm_add_named_metadata_operand(void) {
LLVMModuleRef M = LLVMModuleCreateWithName("Mod");
LLVMValueRef Int = LLVMConstInt(LLVMInt32Type(), 0, 0);
// This used to trigger an assertion
LLVMAddNamedMetadataOperand(M, "name", LLVMMDNode(&Int, 1));
LLVMDisposeModule(M);
return 0;
}
int llvm_set_metadata(void) {
LLVMBuilderRef Builder = LLVMCreateBuilder();
// This used to trigger an assertion
LLVMValueRef Return = LLVMBuildRetVoid(Builder);
const char Name[] = "kind";
LLVMValueRef Int = LLVMConstInt(LLVMInt32Type(), 0, 0);
LLVMSetMetadata(Return, LLVMGetMDKindID(Name, strlen(Name)),
LLVMMDNode(&Int, 1));
LLVMDisposeBuilder(Builder);
LLVMDeleteInstruction(Return);
return 0;
}
int llvm_replace_md_operand(void) {
LLVMModuleRef M = LLVMModuleCreateWithName("Mod");
LLVMContextRef Context = LLVMGetModuleContext(M);
const char String1[] = "foo";
LLVMMetadataRef String1MD =
LLVMMDStringInContext2(Context, String1, strlen(String1));
LLVMMetadataRef NodeMD = LLVMMDNodeInContext2(Context, &String1MD, 1);
LLVMValueRef Value = LLVMMetadataAsValue(Context, NodeMD);
const char String2[] = "bar";
LLVMMetadataRef String2MD =
LLVMMDStringInContext2(Context, String2, strlen(String2));
LLVMReplaceMDNodeOperandWith(Value, 0, String2MD);
LLVMValueRef Operand = LLVMGetOperand(Value, 0);
unsigned int Len;
const char *String = LLVMGetMDString(Operand, &Len);
assert(Len == strlen(String2));
assert(strncmp(String, String2, Len) == 0);
(void)String;
LLVMDisposeModule(M);
return 0;
}
int llvm_is_a_value_as_metadata(void) {
LLVMModuleRef M = LLVMModuleCreateWithName("Mod");
LLVMContextRef Context = LLVMGetModuleContext(M);
{
LLVMValueRef Int = LLVMConstInt(LLVMInt32Type(), 0, 0);
LLVMValueRef NodeMD = LLVMMDNode(&Int, 1);
assert(LLVMIsAValueAsMetadata(NodeMD) == NodeMD);
(void)NodeMD;
}
{
const char String[] = "foo";
LLVMMetadataRef StringMD =
LLVMMDStringInContext2(Context, String, strlen(String));
LLVMMetadataRef NodeMD = LLVMMDNodeInContext2(Context, &StringMD, 1);
LLVMValueRef Value = LLVMMetadataAsValue(Context, NodeMD);
assert(LLVMIsAValueAsMetadata(Value) == NULL);
(void)Value;
}
return 0;
}
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