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re PR bootstrap/41031 (ICE in insert_value_copy_on_edge preventing bootstrap on sparc64 and s390x, testcase on cris-elf)

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2009-08-12  Richard Sandiford  <rdsandiford@googlemail.com>

	PR tree-optimization/41031
	* tree-outof-ssa.c (insert_value_copy_on_edge): Use promote_decl_mode
	on the partition variable rather than promote_mode on the source
	type.  Assert that the partition variable's type has the same
	mode as the source value's.

From-SVN: r150701
This commit is contained in:
Richard Sandiford 2009-08-12 16:28:36 +00:00 committed by Paolo Bonzini
parent 666e3cebe1
commit b2a58473d7
2 changed files with 12 additions and 2 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
2009-08-12 Richard Sandiford <rdsandiford@googlemail.com>
PR tree-optimization/41031
* tree-outof-ssa.c (insert_value_copy_on_edge): Use promote_decl_mode
on the partition variable rather than promote_mode on the source
type. Assert that the partition variable's type has the same
mode as the source value's.
2009-08-12 Paolo Bonzini <bonzini@gnu.org>
* doc/tm.texi (TARGET_PROMOTE_FUNCTION_MODE): Add documentation

6
gcc/tree-outof-ssa.c
View File

@ -197,6 +197,7 @@ insert_value_copy_on_edge (edge e, int dest, tree src, source_location locus)
rtx seq, x;
enum machine_mode dest_mode, src_mode;
int unsignedp;
tree var;
if (dump_file && (dump_flags & TDF_DETAILS))
{
@ -217,9 +218,10 @@ insert_value_copy_on_edge (edge e, int dest, tree src, source_location locus)
start_sequence ();
var = SSA_NAME_VAR (partition_to_var (SA.map, dest));
src_mode = TYPE_MODE (TREE_TYPE (src));
unsignedp = TYPE_UNSIGNED (TREE_TYPE (src));
dest_mode = promote_mode (TREE_TYPE (src), src_mode, &unsignedp);
dest_mode = promote_decl_mode (var, &unsignedp);
gcc_assert (src_mode == TYPE_MODE (TREE_TYPE (var)));
gcc_assert (dest_mode == GET_MODE (SA.partition_to_pseudo[dest]));
if (src_mode != dest_mode)