[llvm] bffdee8 - [LTO][Legacy] Add API for passing LLVM options separately
Francis Visoiu Mistrih via llvm-commits
llvm-commits at lists.llvm.org
Tue Nov 19 16:34:27 PST 2019
Author: Francis Visoiu Mistrih
Date: 2019-11-19T16:30:37-08:00
New Revision: bffdee8ef379126de3f2581214d89c1b29f440b7
URL: https://github.com/llvm/llvm-project/commit/bffdee8ef379126de3f2581214d89c1b29f440b7
DIFF: https://github.com/llvm/llvm-project/commit/bffdee8ef379126de3f2581214d89c1b29f440b7.diff
LOG: [LTO][Legacy] Add API for passing LLVM options separately
In order to correctly pass options to LLVM, including options containing
spaces which are used as delimiters for multiple options in
lto_codegen_debug_options, add a new API:
lto_codegen_debug_options_array.
Unfortunately, tools/lto has no testing infrastructure yet, so there are
no tests associated with this patch.
Differential Revision: https://reviews.llvm.org/D70463
Added:
Modified:
llvm/include/llvm-c/lto.h
llvm/include/llvm/LTO/legacy/LTOCodeGenerator.h
llvm/lib/LTO/LTOCodeGenerator.cpp
llvm/tools/lto/lto.cpp
llvm/tools/lto/lto.exports
Removed:
################################################################################
diff --git a/llvm/include/llvm-c/lto.h b/llvm/include/llvm-c/lto.h
index 0c6ce673162a..97a8f4823320 100644
--- a/llvm/include/llvm-c/lto.h
+++ b/llvm/include/llvm-c/lto.h
@@ -46,7 +46,7 @@ typedef bool lto_bool_t;
* @{
*/
-#define LTO_API_VERSION 25
+#define LTO_API_VERSION 26
/**
* \since prior to LTO_API_VERSION=3
@@ -514,11 +514,24 @@ lto_api_version(void);
/**
* Sets options to help debug codegen bugs.
*
+ * This function takes one or more options separated by spaces.
+ * Warning: passing file paths through this function may confuse the argument
+ * parser if the paths contain spaces.
+ *
* \since prior to LTO_API_VERSION=3
*/
extern void
lto_codegen_debug_options(lto_code_gen_t cg, const char *);
+/**
+ * Same as the previous function, but takes every option separately through an
+ * array.
+ *
+ * \since prior to LTO_API_VERSION=26
+ */
+extern void lto_codegen_debug_options_array(lto_code_gen_t cg,
+ const char *const *, int number);
+
/**
* Initializes LLVM disassemblers.
* FIXME: This doesn't really belong here.
diff --git a/llvm/include/llvm/LTO/legacy/LTOCodeGenerator.h b/llvm/include/llvm/LTO/legacy/LTOCodeGenerator.h
index acb0b1fec938..114ba85947a5 100644
--- a/llvm/include/llvm/LTO/legacy/LTOCodeGenerator.h
+++ b/llvm/include/llvm/LTO/legacy/LTOCodeGenerator.h
@@ -35,6 +35,7 @@
#define LLVM_LTO_LTOCODEGENERATOR_H
#include "llvm-c/lto.h"
+#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/ADT/StringSet.h"
@@ -122,7 +123,7 @@ struct LTOCodeGenerator {
/// name is misleading). This function should be called before
/// LTOCodeGenerator::compilexxx(), and
/// LTOCodeGenerator::writeMergedModules().
- void setCodeGenDebugOptions(StringRef Opts);
+ void setCodeGenDebugOptions(ArrayRef<const char *> Opts);
/// Parse the options set in setCodeGenDebugOptions.
///
diff --git a/llvm/lib/LTO/LTOCodeGenerator.cpp b/llvm/lib/LTO/LTOCodeGenerator.cpp
index f87f232c63eb..5fef14230a9b 100644
--- a/llvm/lib/LTO/LTOCodeGenerator.cpp
+++ b/llvm/lib/LTO/LTOCodeGenerator.cpp
@@ -622,12 +622,9 @@ bool LTOCodeGenerator::compileOptimized(ArrayRef<raw_pwrite_stream *> Out) {
return true;
}
-/// setCodeGenDebugOptions - Set codegen debugging options to aid in debugging
-/// LTO problems.
-void LTOCodeGenerator::setCodeGenDebugOptions(StringRef Options) {
- for (std::pair<StringRef, StringRef> o = getToken(Options); !o.first.empty();
- o = getToken(o.second))
- CodegenOptions.push_back(o.first);
+void LTOCodeGenerator::setCodeGenDebugOptions(ArrayRef<const char *> Options) {
+ for (StringRef Option : Options)
+ CodegenOptions.push_back(Option);
}
void LTOCodeGenerator::parseCodeGenDebugOptions() {
diff --git a/llvm/tools/lto/lto.cpp b/llvm/tools/lto/lto.cpp
index 9ff16e85db4c..9933af94de1e 100644
--- a/llvm/tools/lto/lto.cpp
+++ b/llvm/tools/lto/lto.cpp
@@ -13,6 +13,7 @@
#include "llvm-c/lto.h"
#include "llvm/ADT/STLExtras.h"
+#include "llvm/ADT/StringExtras.h"
#include "llvm/Bitcode/BitcodeReader.h"
#include "llvm/CodeGen/CommandFlags.inc"
#include "llvm/IR/DiagnosticInfo.h"
@@ -453,7 +454,17 @@ bool lto_codegen_compile_to_file(lto_code_gen_t cg, const char **name) {
}
void lto_codegen_debug_options(lto_code_gen_t cg, const char *opt) {
- unwrap(cg)->setCodeGenDebugOptions(opt);
+ std::vector<const char *> Options;
+ for (std::pair<StringRef, StringRef> o = getToken(opt); !o.first.empty();
+ o = getToken(o.second))
+ Options.push_back(o.first.data());
+
+ unwrap(cg)->setCodeGenDebugOptions(Options);
+}
+
+void lto_codegen_debug_options_array(lto_code_gen_t cg,
+ const char *const *options, int number) {
+ unwrap(cg)->setCodeGenDebugOptions(makeArrayRef(options, number));
}
unsigned int lto_api_version() { return LTO_API_VERSION; }
diff --git a/llvm/tools/lto/lto.exports b/llvm/tools/lto/lto.exports
index d24809fe762f..fd2212cb5f33 100644
--- a/llvm/tools/lto/lto.exports
+++ b/llvm/tools/lto/lto.exports
@@ -33,6 +33,7 @@ lto_codegen_set_debug_model
lto_codegen_set_pic_model
lto_codegen_write_merged_modules
lto_codegen_debug_options
+lto_codegen_debug_options_array
lto_codegen_set_assembler_args
lto_codegen_set_assembler_path
lto_codegen_set_cpu
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