On Nov 10, 2007, at 7:48 PM, Nick Lewycky wrote:
> This patch to llvm-gcc 4.0 allows it to compile on PPC/Linux. This
> is a combination of patchs from myself, Dale Johannesen, and the
> fact that a GTY can't be declared in an #ifdef from Andrew Pinski.
>
> I'd appreciate some testing. More importantly to make sure that this
> doesn't break Darwin on PPC, but also anyone else who's interested
> in running LLVM on their PPC Linux boxes.
>
> The second attachment is the result of a nightly test on PPC/Linux,
> after applying this patch.
Index: gcc/config/rs6000/linux.h
===================================================================
--- gcc/config/rs6000/linux.h (revision 43975)
+++ gcc/config/rs6000/linux.h (working copy)
@@ -110,3 +110,13 @@
#define TARGET_HAS_F_SETLKW
#define MD_UNWIND_SUPPORT "config/rs6000/linux-unwind.h"
+
+#undef ADJUST_FIELD_ALIGN
+#define ADJUST_FIELD_ALIGN(FIELD, COMPUTED, FIRST_FIELD_P) \
+ (TARGET_ALIGN_NATURAL ? (COMPUTED) : \
+ (((COMPUTED) == RS6000_VECTOR_ALIGNMENT) \
+ ? RS6000_VECTOR_ALIGNMENT \
+ : (MIN ((COMPUTED), \
+ (TARGET_ALIGN_MAC68K ? 16 \
+ : ((FIRST_FIELD_P) ? (COMPUTED) \
+ : 32))))))
I don't think this part can possibly be correct, there's no mac68k
alignment for ppc linux. The proper version of ADJUST_FIELD_ALIGN is
in 4.2 and is:
/* An expression for the alignment of a structure field FIELD if the
alignment computed in the usual way is COMPUTED. */
#define ADJUST_FIELD_ALIGN(FIELD,
COMPUTED) \
((TARGET_ALTIVEC && TREE_CODE (TREE_TYPE (FIELD)) ==
VECTOR_TYPE) \
? 128 : COMPUTED)
(note that there's a different one for ppc64-linux)
-eric
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