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)

syntax: glob
*.bc
*.diff
*.o
*.obj
*.orig
*.patch
*.a
*.s
*.so
*.rej
Makefile
CMakeFiles
CMakeCache.txt
cmake_install.cmake
.DS_Store

syntax: regexp
^obj/
^tests/dstress/
^tests/reference/
^tango/
^druntime/
^import/
^bin/ldc2?$
^bin/ldc2?\.conf$
^bin/ldc2?\.rebuild\.conf$
^idgen\.make$
^impcnvgen\.make$
^ldc\.make$
^revisions\.pl$
^gen/revisions\.h$
^gen/llvm-version\.h$
^dmd2?/idgen$
^dmd2?/impcnvgen$
^dmd2?/impcnvtab\.c$
^dmd2?/id\.c$
^dmd2?/id\.h$
^tests/runminitest$
^tests/findregressions$
^tests/makewebstatistics$
^tests/mini/obj/