Mercurial > projects > ldc
view ldc.conf.in @ 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 | 193ab3969920 |
children | e16ea850ff81 |
line wrap: on
line source
// This configuration file uses libconfig. // See http://www.hyperrealm.com/libconfig/ for syntax details. // Special macros: // %%ldcbinarydir%% // - is replaced with the path to the directory holding the ldc executable // The default group is required default: { // 'switches' holds array of string that are appends to the command line // arguments before they are parsed. switches = [ "-I@RUNTIME_DIR@", "-I@RUNTIME_DIR@/lib/common", "-L-L%%ldcbinarypath%%/../lib", "-d-version=Tango", "-defaultlib=@RUNTIME_AIO@", "-debuglib=@RUNTIME_AIO@" ]; };