This patch enables reading llvm bytecodes from PCH file. Applied.
-
Devang
>
> Index: llvm.h
> ===================================================================
> --- llvm.h (revision 123555)
> +++ llvm.h (working copy)
> @@ -83,6 +83,9 @@ void print_llvm(FILE *file, void *LLVM);
> /* Init pch writing. */
> void llvm_pch_write_init(void);
> +/* Read bytecodes from PCH file. */
> +void llvm_pch_read(void);
> +
> /* llvm_asm_file_start - Start the .s file. */
> void llvm_asm_file_start(void);
> Index: llvm-backend.cpp
> ===================================================================
> --- llvm-backend.cpp (revision 123555)
> +++ llvm-backend.cpp (working copy)
> @@ -32,6 +32,7 @@ Software Foundation, 59 Temple Place - S
> #include "llvm/Assembly/Writer.h"
> #include "llvm/Assembly/PrintModulePass.h"
> #include "llvm/Bytecode/WriteBytecodePass.h"
> +#include "llvm/Bytecode/Reader.h"
> #include "llvm/CodeGen/RegAllocRegistry.h"
> #include "llvm/CodeGen/SchedulerRegistry.h"
> #include "llvm/CodeGen/ScheduleDAG.h"
> @@ -184,6 +185,21 @@ void llvm_lang_dependent_init(const char
> oFILEstream *AsmOutStream = 0;
> +void llvm_pch_read(void) {
> +
> + if (TheModule)
> + delete TheModule;
> +
> + fclose (asm_out_file);
> + std::string ErrMsg;
> + TheModule = ParseBytecodeFile(asm_file_name, &ErrMsg);
> + if (!TheModule) {
> + cerr << "Error reading bytecodes from PCH file\n";
> + cerr << ErrMsg << "\n";
> + exit(1);
> + }
> +}
> +
> // Initialize PCH writing.
> void llvm_pch_write_init(void) {
> timevar_push(TV_LLVM_INIT);
> Index: c-pch.c
> ===================================================================
> --- c-pch.c (revision 123555)
> +++ c-pch.c (working copy)
> @@ -429,6 +429,12 @@ c_common_read_pch (cpp_reader *pfile, co
> written += size;
> }
> free (buf);
> + /* APPLE LOCAL begin LLVM */
> +#ifdef ENABLE_LLVM
> + llvm_pch_read();
> +#endif
> + /* APPLE LOCAL end LLVM */
> +
> }
> else
> {
> @@ -438,6 +444,7 @@ c_common_read_pch (cpp_reader *pfile, co
> cpp_errno (pfile, CPP_DL_ERROR, "seeking");
> }
> +
> cpp_prepare_state (pfile, &smd);
> gt_pch_restore (f);
> Index: llvm-linker-hack.cpp
> ===================================================================
> --- llvm-linker-hack.cpp (revision 123555)
> +++ llvm-linker-hack.cpp (working copy)
> @@ -26,6 +26,7 @@ Software Foundation, 59 Temple Place - S
> #include "llvm/Analysis/LoadValueNumbering.h"
> #include "llvm/Transforms/IPO.h"
> #include "llvm/Bytecode/Writer.h"
> +#include "llvm/Bytecode/Reader.h"
> #include "llvm/CodeGen/ScheduleDAG.h"
> #include "llvm/CodeGen/Passes.h"
> #include "llvm/Support/Streams.h"
> @@ -41,6 +42,7 @@ void dummy_function() {
> new llvm::ExistingModuleProvider(0);
> llvm::createVerifierPass();
> llvm::WriteBytecodeToFile(0, llvm::cout);
> + llvm::ParseBytecodeFile(NULL,NULL);
> llvm::createInstructionCombiningPass();
> llvm::createScalarReplAggregatesPass();
> Index: Makefile.in
> ===================================================================
> --- Makefile.in (revision 123555)
> +++ Makefile.in (working copy)
> @@ -1069,7 +1069,7 @@ endif
> # We use llvm-config to determine the libraries that we need to
> link in our
> # target, optimizations analyses and the bcwriter.
> -LLVMCOMPONENTS := $(LLVMTARGETOBJ) scalaropts transformutils
> analysis bcwriter ipo
> +LLVMCOMPONENTS := $(LLVMTARGETOBJ) scalaropts transformutils
> analysis bcwriter ipo bcreader
> LLVMLIBFILES := $(shell $(LLVMBINPATH)/llvm-config --libfiles $
> (LLVMCOMPONENTS))
> LLVMLDFLAGS := $(shell $(LLVMBINPATH)/llvm-config --ldflags)
> LIBS += $(LLVMLDFLAGS)
> [dp5.apple.com:/Volumes/src/llvm-gcc/gcc]$
>
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