Re: GCC build of HEAD failed for native with your patch on 2004-07-24T04:00:32Z.

[Andrew Pinski <pinskia at physics dot uc dot edu>]

On Jul 23, 2004, at 11:59 PM, GCC regression checker wrote:

> /Users/regress/tbox/native/build/gcc/xgcc 
> -B/Users/regress/tbox/native/build/gcc/ 
> -B/Users/regress/tbox/objs/powerpc-apple-darwin7.4.0/bin/ 
> -B/Users/regress/tbox/objs/powerpc-apple-darwin7.4.0/lib/ -isystem 
> /Users/regress/tbox/objs/powerpc-apple-darwin7.4.0/include -isystem 
> /Users/regress/tbox/objs/powerpc-apple-darwin7.4.0/sys-include 
> -DPACKAGE_NAME=\"\" -DPACKAGE_TARNAME=\"\" -DPACKAGE_VERSION=\"\" 
> -DPACKAGE_STRING=\"\" -DPACKAGE_BUGREPORT=\"\" -DGC_DARWIN_THREADS=1 
> -DTHREAD_LOCAL_ALLOC=1 -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 
> -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 
> -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 
> -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DSILENT=1 -DNO_SIGNALS=1 
> -DALL_INTERIOR_POINTERS=1 -DJAVA_FINALIZATION=1 -DGC_GCJ_SUPPORT=1 
> -DATOMIC_UNCOLLECTABLE=1 
> -I/Users/regress/tbox/cvs-gcc/gcc/boehm-gc/include -O2 -g -O2 
> -fexceptions -I././targ-include -I.//libc/include -O2 -g -O2 
> -fexceptions -I././targ-include -I.//libc/include -c /Users/regres
>  s/tbox/cvs-gcc/gcc/boehm-gc/os_dep.c  -fno-common -DPIC -o 
> .libs/os_dep.o
> /Users/regress/tbox/cvs-gcc/gcc/boehm-gc/os_dep.c: In function 
> `GC_dirty_init':
> /Users/regress/tbox/cvs-gcc/gcc/boehm-gc/os_dep.c:3536: internal 
> compiler error: in merge_alias_info, at tree-ssa-copy.c:181
> Please submit a full bug report,
> with preprocessed source if appropriate.
> See <URL:http://gcc.gnu.org/bugs.html> for instructions.
> make[3]: *** [os_dep.lo] Error 1
> make[2]: *** [all-recursive] Error 1
> make[1]: *** [all-target-boehm-gc] Error 2
> make: *** [bootstrap] Error 2
> + '[' -s gcc/.bad_compare ']'
> + exit 1

This is almost definitely caused by:
+2004-07-23  Diego Novillo  <dnovillo@redhat.com>
+
+	PR tree-optimization/16688
+	PR tree-optimization/16689
+	* tree-ssa-alias.c (setup_pointers_and_addressables): Remove
+	unnecessary initialization of 'tag'.
+	(get_tmt_for): Check that the new type tag has the same alias
+	set as the pointed-to type.
+	(group_aliases): Only regular variables need to be removed
+	from the alias set of a name tag.
+	* tree-ssa-copy.c (may_propagate_copy): Do not allow copy
+	propagation if the two types are not compatible.
+	(merge_alias_info): Rename from replace_ssa_names_ann.
+	Add more checking.
+	(replace_exp_1): If both arguments are SSA_NAMEs, check that
+	the propagation can be done.
+	Only call merge_alias_info on pointers.
+	(propagate_value): Likewise.
+	* tree-ssa-copyrename.c: Include langhooks.h.
+	(copy_rename_partition_coalesce): Call replace_ssa_name_symbol
+	to do the merging.
+	Do not coalesce variables with incompatible types.
+	(rename_ssa_copies): Call replace_ssa_name_symbol.
+	* tree-ssa.c (verify_ssa_name): Verify that the SSA_NAME has
+	the same type as the underlying _DECL.
+	* tree-ssanames.c (replace_ssa_name_symbol): New function.
+	* tree.h (replace_ssa_name_symbol): Declare.

Please fix right away otherwise

Andrew PInski