Mercurial > projects > ldc
view premake.lua @ 1410:cc2d8a7388c7
Count the sret register as well when keeping track of how many integer registers
are available for extern(C) functions on x86-64.
Interestingly, llvm-g++ seems to have a very similar bug: http://llvm.org/pr4242
(So this breaks ABI-compatibility with llvm-gcc for this corner case, but gains
it with gcc...)
To clarify, this is about code like this:
{{{
struct S { void*[3] data; }
struct T { void*[2] data; }
// The T should be passed in memory, and p in the last int register.
extern(C) S fail(int, int, int, int, T t, void* p) {
S s;
s.data[0] = t.data[0];
s.data[1] = t.data[1];
s.data[2] = p;
return s;
}
}}}
which should generate code functionally equivalent to this:
{{{
extern(C) S* succeed(S* s, int, int, int, int, T t, void* p) {
s.data[0] = t.data[0];
s.data[1] = t.data[1];
s.data[2] = p;
return s;
}
}}}
(with the same definitions for S and T)
author | Frits van Bommel <fvbommel wxs.nl> |
---|---|
date | Fri, 22 May 2009 13:17:06 +0200 |
parents | f04dde6e882c |
children |
line wrap: on
line source
project.name = ldc -- options -- we always make vtables opaque, it simply kills performance... OPAQUE_VTBLS = 1 -- use of boehm gc USE_BOEHM_GC = 0 if OS ~= "windows" then addoption("enable-boehm-gc", "Enable use of the Boehm GC (broken!)") if options["enable-boehm-gc"] then USE_BOEHM_GC = 1 end end -- are we on a Posix system? POSIX = 1 if OS == "windows" then POSIX = 0 end -- guess the host machine description -- also allow overriding it addoption("target-override", "Override the default target machine"); TRIPLE = ""; if options["target-override"] then TRIPLE = options["target-override"] else os.execute("sh config.guess > default-target-triple.tmp") TRIPLE = io.open("default-target-triple.tmp"):read() end io.write("Default target: '"..TRIPLE.."'\n"); -- x86 ABI support X86_REVERSE_PARAMS = 1 X86_PASS_IN_EAX = 1 -- D version DMDV2 = true if DMDV2 then DMD_V_DEF = "DMDV2=1" DMD_DIR = "dmd2" else DMD_V_DEF = "DMDV1=1" DMD_DIR = "dmd" end -- idgen package = newpackage() package.name = "idgen" package.kind = "exe" package.language = "c++" package.files = { DMD_DIR.."/idgen.c" } package.buildoptions = { "-x c++" } package.postbuildcommands = { "./idgen", "mv -f id.c id.h "..DMD_DIR } package.defines = { DMD_V_DEF } -- impcnvgen package = newpackage() package.name = "impcnvgen" package.kind = "exe" package.language = "c++" package.files = { DMD_DIR.."/impcnvgen.c" } package.buildoptions = { "-x c++" } package.postbuildcommands = { "./impcnvgen", "mv -f impcnvtab.c "..DMD_DIR } package.defines = { DMD_V_DEF } -- ldc package = newpackage() package.bindir = "bin" package.name = DMDV2 and "ldc2" or "ldc" package.kind = "exe" package.language = "c++" package.files = { matchfiles(DMD_DIR.."/*.c"), matchfiles("gen/*.cpp"), matchfiles("ir/*.cpp") } package.excludes = { DMD_DIR.."/idgen.c", DMD_DIR.."/impcnvgen.c" } package.buildoptions = { "-x c++", "`llvm-config --cxxflags`" } package.linkoptions = { -- long but it's faster than just 'all' "`llvm-config --libs bitwriter linker ipo instrumentation backend`", "`llvm-config --ldflags`", } package.defines = { "IN_LLVM", "_DH", DMD_V_DEF, "OPAQUE_VTBLS="..OPAQUE_VTBLS, "USE_BOEHM_GC="..USE_BOEHM_GC, "POSIX="..POSIX, "DEFAULT_TARGET_TRIPLE=\\\""..TRIPLE.."\\\"", "X86_REVERSE_PARAMS="..X86_REVERSE_PARAMS, "X86_PASS_IN_EAX="..X86_PASS_IN_EAX, } package.config.Release.defines = { "LLVMD_NO_LOGGER" } package.config.Debug.buildoptions = { "-g -O0" } --package.targetprefix = "llvm" package.includepaths = { ".", DMD_DIR } --package.postbuildcommands = { "cd runtime; ./build.sh; cd .." } if USE_BOEHM_GC == 1 then package.links = { "gc" } end