[llvm] eb98aba - [LLVM-C] Use unwrapDI in LLVMDITypeGetName
Scott Linder via llvm-commits
llvm-commits at lists.llvm.org
Fri Jul 7 09:51:28 PDT 2023
Author: Tamir Duberstein
Date: 2023-07-07T16:51:20Z
New Revision: eb98abab2c83c9c101c4749c93836108657d6164
URL: https://github.com/llvm/llvm-project/commit/eb98abab2c83c9c101c4749c93836108657d6164
DIFF: https://github.com/llvm/llvm-project/commit/eb98abab2c83c9c101c4749c93836108657d6164.diff
LOG: [LLVM-C] Use unwrapDI in LLVMDITypeGetName
This function otherwise crashes. This behavior has been incorrect since
its introduction in 260b581498bed0b847e7e086852e0082d266711d (D46627).
Reviewed By: scott.linder
Differential Revision: https://reviews.llvm.org/D154630
Added:
llvm/test/Bindings/llvm-c/di-type-get-name.ll
Modified:
llvm/lib/IR/DebugInfo.cpp
llvm/tools/llvm-c-test/debuginfo.c
llvm/tools/llvm-c-test/llvm-c-test.h
llvm/tools/llvm-c-test/main.c
Removed:
################################################################################
diff --git a/llvm/lib/IR/DebugInfo.cpp b/llvm/lib/IR/DebugInfo.cpp
index 02374480589e22..48b5501c55ba47 100644
--- a/llvm/lib/IR/DebugInfo.cpp
+++ b/llvm/lib/IR/DebugInfo.cpp
@@ -1487,7 +1487,7 @@ uint16_t LLVMGetDINodeTag(LLVMMetadataRef MD) {
}
const char *LLVMDITypeGetName(LLVMMetadataRef DType, size_t *Length) {
- StringRef Str = unwrap<DIType>(DType)->getName();
+ StringRef Str = unwrapDI<DIType>(DType)->getName();
*Length = Str.size();
return Str.data();
}
diff --git a/llvm/test/Bindings/llvm-c/di-type-get-name.ll b/llvm/test/Bindings/llvm-c/di-type-get-name.ll
new file mode 100644
index 00000000000000..5872a85bed7ed4
--- /dev/null
+++ b/llvm/test/Bindings/llvm-c/di-type-get-name.ll
@@ -0,0 +1,2 @@
+; RUN: llvm-c-test --di-type-get-name < /dev/null
+; This used to trigger an assertion
diff --git a/llvm/tools/llvm-c-test/debuginfo.c b/llvm/tools/llvm-c-test/debuginfo.c
index 5f36f8e618661b..a3e41be12e95d4 100644
--- a/llvm/tools/llvm-c-test/debuginfo.c
+++ b/llvm/tools/llvm-c-test/debuginfo.c
@@ -231,3 +231,28 @@ int llvm_get_di_tag(void) {
return 0;
}
+
+int llvm_di_type_get_name(void) {
+ LLVMModuleRef M = LLVMModuleCreateWithName("Mod");
+
+ LLVMDIBuilderRef Builder = LLVMCreateDIBuilder(M);
+ const char Filename[] = "metadata.c";
+ const char Directory[] = ".";
+ LLVMMetadataRef File = LLVMDIBuilderCreateFile(
+ Builder, Filename, strlen(Filename), Directory, strlen(Directory));
+ const char Name[] = "TestClass";
+ LLVMMetadataRef Struct = LLVMDIBuilderCreateStructType(
+ Builder, File, Name, strlen(Name), File, 42, 64, 0,
+ LLVMDIFlagObjcClassComplete, NULL, NULL, 0, 0, NULL, NULL, 0);
+
+ size_t Len;
+ const char *TypeName = LLVMDITypeGetName(Struct, &Len);
+ assert(Len == strlen(Name));
+ assert(strncmp(TypeName, Name, Len) == 0);
+ (void)TypeName;
+
+ LLVMDisposeDIBuilder(Builder);
+ LLVMDisposeModule(M);
+
+ return 0;
+}
diff --git a/llvm/tools/llvm-c-test/llvm-c-test.h b/llvm/tools/llvm-c-test/llvm-c-test.h
index 15b8573a9bfd97..00566660257e07 100644
--- a/llvm/tools/llvm-c-test/llvm-c-test.h
+++ b/llvm/tools/llvm-c-test/llvm-c-test.h
@@ -38,6 +38,7 @@ int llvm_disassemble(void);
// debuginfo.c
int llvm_test_dibuilder(void);
int llvm_get_di_tag(void);
+int llvm_di_type_get_name(void);
// metadata.c
int llvm_add_named_metadata_operand(void);
diff --git a/llvm/tools/llvm-c-test/main.c b/llvm/tools/llvm-c-test/main.c
index dc46b7410daff8..85bbc71d59ae84 100644
--- a/llvm/tools/llvm-c-test/main.c
+++ b/llvm/tools/llvm-c-test/main.c
@@ -49,6 +49,8 @@ static void print_usage(void) {
" Read lines of name, rpn from stdin - print generated module\n\n");
fprintf(stderr, " * --get-di-tag\n");
fprintf(stderr, " Run test for getting MDNode dwarf tag\n");
+ fprintf(stderr, " * --di-type-get-name\n");
+ fprintf(stderr, " Run test for getting MDNode type name\n");
fprintf(stderr, " * --replace-md-operand\n");
fprintf(stderr, " Run test for replacing MDNode operands\n");
fprintf(stderr, " * --is-a-value-as-metadata\n");
@@ -96,6 +98,8 @@ int main(int argc, char **argv) {
return llvm_set_metadata();
} else if (argc == 2 && !strcmp(argv[1], "--get-di-tag")) {
return llvm_get_di_tag();
+ } else if (argc == 2 && !strcmp(argv[1], "--di-type-get-name")) {
+ return llvm_di_type_get_name();
} else if (argc == 2 && !strcmp(argv[1], "--replace-md-operand")) {
return llvm_replace_md_operand();
} else if (argc == 2 && !strcmp(argv[1], "--is-a-value-as-metadata")) {
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