[llvm-commits] [llvm] r53119 - in /llvm/trunk: include/llvm-c/lto.h tools/lto/LTOCodeGenerator.cpp tools/lto/LTOCodeGenerator.h tools/lto/lto.cpp
Devang Patel
dpatel at apple.com
Thu Jul 3 15:53:14 PDT 2008
Author: dpatel
Date: Thu Jul 3 17:53:14 2008
New Revision: 53119
URL: http://llvm.org/viewvc/llvm-project?rev=53119&view=rev
Log:
Provide a hook to set the code generation debug options to investigate lto failures.
Modified:
llvm/trunk/include/llvm-c/lto.h
llvm/trunk/tools/lto/LTOCodeGenerator.cpp
llvm/trunk/tools/lto/LTOCodeGenerator.h
llvm/trunk/tools/lto/lto.cpp
Modified: llvm/trunk/include/llvm-c/lto.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm-c/lto.h?rev=53119&r1=53118&r2=53119&view=diff
==============================================================================
--- llvm/trunk/include/llvm-c/lto.h (original)
+++ llvm/trunk/include/llvm-c/lto.h Thu Jul 3 17:53:14 2008
@@ -227,6 +227,11 @@
lto_codegen_compile(lto_code_gen_t cg, size_t* length);
+/**
+ * Sets options to help debug codegen bugs.
+ */
+extern void
+lto_codegen_debug_options(lto_code_gen_t cg, const char *);
#ifdef __cplusplus
}
#endif
Modified: llvm/trunk/tools/lto/LTOCodeGenerator.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/lto/LTOCodeGenerator.cpp?rev=53119&r1=53118&r2=53119&view=diff
==============================================================================
--- llvm/trunk/tools/lto/LTOCodeGenerator.cpp (original)
+++ llvm/trunk/tools/lto/LTOCodeGenerator.cpp Thu Jul 3 17:53:14 2008
@@ -40,6 +40,7 @@
#include "llvm/Target/TargetAsmInfo.h"
#include "llvm/Transforms/IPO.h"
#include "llvm/Transforms/Scalar.h"
+#include "llvm/ADT/StringExtras.h"
#include "llvm/Config/config.h"
@@ -116,7 +117,6 @@
return true;
}
-
void LTOCodeGenerator::addMustPreserveSymbol(const char* sym)
{
_mustPreserveSymbols[sym] = 1;
@@ -334,6 +334,18 @@
break;
}
+ for (unsigned opt_index = 0, opt_size = _codegenOptions.size();
+ opt_index < opt_size; ++opt_index) {
+ std::vector<const char *> cgOpts;
+ std::string &optString = _codegenOptions[opt_index];
+ for (std::string Opt = getToken(optString);
+ !Opt.empty(); Opt = getToken(optString))
+ cgOpts.push_back(Opt.c_str());
+
+ int pseudo_argc = cgOpts.size()-1;
+ cl::ParseCommandLineOptions(pseudo_argc, (char**)&cgOpts[0]);
+ }
+
// Instantiate the pass manager to organize the passes.
PassManager passes;
Modified: llvm/trunk/tools/lto/LTOCodeGenerator.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/lto/LTOCodeGenerator.h?rev=53119&r1=53118&r2=53119&view=diff
==============================================================================
--- llvm/trunk/tools/lto/LTOCodeGenerator.h (original)
+++ llvm/trunk/tools/lto/LTOCodeGenerator.h Thu Jul 3 17:53:14 2008
@@ -17,6 +17,7 @@
#include "llvm/Linker.h"
#include "llvm/ADT/StringMap.h"
+#include "llvm/ADT/SmallVector.h"
#include <string>
@@ -38,7 +39,9 @@
bool writeMergedModules(const char* path,
std::string& errMsg);
const void* compile(size_t* length, std::string& errMsg);
-
+ void setCodeGenDebugOptions(const char *opts) {
+ _codegenOptions.push_back(std::string(opts));
+ }
private:
bool generateAssemblyCode(std::ostream& out,
std::string& errMsg);
@@ -56,6 +59,7 @@
lto_codegen_model _codeModel;
StringSet _mustPreserveSymbols;
llvm::MemoryBuffer* _nativeObjectFile;
+ llvm::SmallVector<std::string, 4> _codegenOptions;
};
#endif // LTO_CODE_GENERATOR_H
Modified: llvm/trunk/tools/lto/lto.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/lto/lto.cpp?rev=53119&r1=53118&r2=53119&view=diff
==============================================================================
--- llvm/trunk/tools/lto/lto.cpp (original)
+++ llvm/trunk/tools/lto/lto.cpp Thu Jul 3 17:53:14 2008
@@ -237,5 +237,11 @@
return cg->compile(length, sLastErrorString);
}
+extern void
+lto_codegen_debug_options(lto_code_gen_t cg, const char * opt)
+{
+ cg->setCodeGenDebugOptions(opt);
+}
+
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