Markus F.X.J. Oberhumer wrote:> Hello folks,
>
> with the small patch attached below the whole llvm toolchain (llvm &
llvm-gcc)
> will compile and run under AMD64 Linux in native 64-bit LP64 mode.
>
> This means that compilation, bytecode management and CWriter output all
work
> as expected. Of course there is no JIT, and the bytecode interpreter is
still
> very much untested - more patches may follow.
I just applied your X86-64 patches to llvm-gcc. I've run them on a few
programs on Linux/i386, and everything seems to work.
Thanks, Markus!
-- John T.
>
> Cheers,
> Markus
>
> --
> Markus F.X.J. Oberhumer
> oberhumer.com, http://www.oberhumer.com/
> Space-Grade Technology
>
>
>
> ------------------------------------------------------------------------
>
> Index: i386.c
> ==================================================================> RCS
file: /var/cvs/llvm/llvm-gcc/gcc/config/i386/i386.c,v
> retrieving revision 1.1.1.2
> diff -u -r1.1.1.2 i386.c
> --- i386.c 13 Jan 2004 16:49:45 -0000 1.1.1.2
> +++ i386.c 23 Dec 2004 05:31:32 -0000
> @@ -1381,9 +1381,15 @@
> error ("-malign-double makes no sense in the 64bit mode");
> if (TARGET_RTD)
> error ("-mrtd calling convention not supported in the 64bit
mode");
> +#if EMIT_LLVM
> + /* set to standard X86 values (using 64-bit long doubles under LLVM)
*/
> + target_flags &= ~(MASK_SSE2 | MASK_SSE | MASK_MMX |
MASK_128BIT_LONG_DOUBLE);
> + ix86_fpmath = FPMATH_387;
> +#else
> /* Enable by default the SSE and MMX builtins. */
> target_flags |= (MASK_SSE2 | MASK_SSE | MASK_MMX |
MASK_128BIT_LONG_DOUBLE);
> ix86_fpmath = FPMATH_SSE;
> +#endif
> }
> else
> {
> @@ -2795,7 +2801,8 @@
> tree f_gpr, f_fpr, f_ovf, f_sav, record, type_decl;
>
> /* For i386 we use plain pointer to argument area. */
> - if (!TARGET_64BIT)
> + /* LLVM also uses the i386 standard version in 64-bit mode */
> + if (!TARGET_64BIT || EMIT_LLVM)
> return build_pointer_type (char_type_node);
>
> record = (*lang_hooks.types.make_type) (RECORD_TYPE);
> @@ -2858,7 +2865,8 @@
> int stdarg_p;
> int i;
>
> - if (!TARGET_64BIT)
> + /* LLVM also uses the i386 standard version in 64-bit mode */
> + if (!TARGET_64BIT || EMIT_LLVM)
> return;
>
> /* Indicate to allocate space on the stack for varargs save area. */
> @@ -2948,7 +2956,8 @@
> tree gpr, fpr, ovf, sav, t;
>
> /* Only 64bit target needs something special. */
> - if (!TARGET_64BIT)
> + /* LLVM also uses the i386 standard version in 64-bit mode */
> + if (!TARGET_64BIT || EMIT_LLVM)
> {
> std_expand_builtin_va_start (valist, nextarg);
> return;
> @@ -3015,7 +3024,8 @@
> int indirect_p = 0;
>
> /* Only 64bit target needs something special. */
> - if (!TARGET_64BIT)
> + /* LLVM also uses the i386 standard version in 64-bit mode */
> + if (!TARGET_64BIT || EMIT_LLVM)
> {
> return std_expand_builtin_va_arg (valist, type);
> }
> Index: i386.h
> ==================================================================> RCS
file: /var/cvs/llvm/llvm-gcc/gcc/config/i386/i386.h,v
> retrieving revision 1.2
> diff -u -r1.2 i386.h
> --- i386.h 8 Jan 2004 23:03:36 -0000 1.2
> +++ i386.h 23 Dec 2004 05:31:34 -0000
> @@ -826,7 +826,7 @@
> #if !EMIT_LLVM
> #define BIGGEST_ALIGNMENT 128
> #else
> -#define BIGGEST_ALIGNMENT 32
> +#define BIGGEST_ALIGNMENT 64
> #endif
>
> /* Decide whether a variable of mode MODE should be 128 bit aligned. */
>
>
> ------------------------------------------------------------------------
>
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