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feat: implement NaN tagging for Value union and hoist bytecode/IP into locals in interpret loop

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Switch Value from a struct with type/num/obj fields to a NaN-tagged uint64_t/double union, enabling faster type checks and unboxed numbers. Refactor all macros and accessors (IS_OBJ, AS_OBJ, AS_NUM, etc.) to work with the new representation. Hoist CallFrame pointer, instruction pointer, and bytecode array into local variables inside the interpret loop, updating them on frame push/pop. Enable NAN_TAGGING define and DEBUG_GC_STRESS in common.h. Update Xcode project to use c99 standard, pedantic warnings, and treat warnings as errors. Add benchmark/fib.txt with timing comparisons showing fib benchmark within 25% of Lua.
This commit is contained in:
Bob Nystrom
2013-11-17 22:20:15 +00:00
parent b3d5f3b4a0
commit 9c663aa13c
6 changed files with 329 additions and 39 deletions
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wren.xcodeproj/project.pbxproj
+8 -2
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@@ -151,6 +151,7 @@
isa = XCBuildConfiguration;
buildSettings = {
ALWAYS_SEARCH_USER_PATHS = NO;
ARCHS = "$(ARCHS_STANDARD)";
CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
CLANG_CXX_LIBRARY = "libc++";
CLANG_ENABLE_OBJC_ARC = YES;
@@ -163,7 +164,7 @@
CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
COPY_PHASE_STRIP = NO;
GCC_C_LANGUAGE_STANDARD = gnu99;
GCC_C_LANGUAGE_STANDARD = c99;
GCC_DYNAMIC_NO_PIC = NO;
GCC_ENABLE_OBJC_EXCEPTIONS = YES;
GCC_OPTIMIZATION_LEVEL = 0;
@@ -172,8 +173,10 @@
"$(inherited)",
);
GCC_SYMBOLS_PRIVATE_EXTERN = NO;
GCC_TREAT_WARNINGS_AS_ERRORS = YES;
GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
GCC_WARN_PEDANTIC = YES;
GCC_WARN_UNDECLARED_SELECTOR = YES;
GCC_WARN_UNINITIALIZED_AUTOS = YES;
GCC_WARN_UNUSED_FUNCTION = YES;
@@ -188,6 +191,7 @@
isa = XCBuildConfiguration;
buildSettings = {
ALWAYS_SEARCH_USER_PATHS = NO;
ARCHS = "$(ARCHS_STANDARD)";
CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
CLANG_CXX_LIBRARY = "libc++";
CLANG_ENABLE_OBJC_ARC = YES;
@@ -202,10 +206,12 @@
COPY_PHASE_STRIP = YES;
DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
ENABLE_NS_ASSERTIONS = NO;
GCC_C_LANGUAGE_STANDARD = gnu99;
GCC_C_LANGUAGE_STANDARD = c99;
GCC_ENABLE_OBJC_EXCEPTIONS = YES;
GCC_TREAT_WARNINGS_AS_ERRORS = YES;
GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
GCC_WARN_PEDANTIC = YES;
GCC_WARN_UNDECLARED_SELECTOR = YES;
GCC_WARN_UNINITIALIZED_AUTOS = YES;
GCC_WARN_UNUSED_FUNCTION = YES;