Re: Failure to bootstrap gcc cvs HEAD 20031025 on cygwin: gcc/unwind-dw2-fde.c:762: internal compiler error: in emit_move_insn, at expr.c:2792

[Andrew Pinski <apinski at apple dot com>]

On Oct 24, 2003, at 10:25 PM, Eric Botcazou wrote:

> > /usr/local/src/trunk/gcc/gcc/unwind-dw2-fde.c:762: internal compiler
> > error: in emit_move_insn, at expr.c:2792 Please submit a full bug 
> > report,
> > with preprocessed source if appropriate.
> > See <URL:http://gcc.gnu.org/bugs.html> for instructions.
>
> Same failure on SPARC and SPARC64.


On powerpc-apple-darwin as reported by Keating's regression checker.

It is caused by this patch:

+2003-10-24  Zack Weinberg  <zack@codesourcery.com>
+
+	* genmodes.c (struct mode_data): Add contained and next_cont
+	fields.
+	(complete_mode): Maintain linked list of modes that have a
+	given component.
+	(emit_mode_unit_size): Delete.
+	(emit_mode_nunits): New.
+	(emit_insn_modes_c): Update to match.
+	(emit_mode_adjustments): Propagate size and alignment
+	adjustments from component modes to their containers.
+	* machmode.h (mode_unit_size): Delete.
+	(mode_nunits): New.
+	(GET_MODE_NUNITS): Just return the value in the table.
+	(GET_MODE_UNIT_SIZE): Compute using GET_MODE_INNER and
+	GET_MODE_SIZE.
+	* expmed.c (store_bit_field, extract_bit_field): Can use a
+	plain move instruction if bitsize >= GET_MODE_BITSIZE of
+	destination/source mode, respectively.
+	* varasm.c (assemble_real): Write out the full size of the
+	constant, not just its bitsize.
+	(output_constant): Honor TYPE_MODE of TREE_REAL_CSTs.


Thanks,
Andrew Pinski