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Fix miscompile of 416.gamess.

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2010-07-29  Sebastian Pop  <sebastian.pop@amd.com>

	* graphite-sese-to-poly.c (rewrite_close_phi_out_of_ssa): Add back
	the case removed in the previous patch, when the only phi argument
	is defined in the same loop as the phi node itself.  Handle it
	separately from the invariant case by both propagating it outside
	the region and replacing the phi node with an assign.

From-SVN: r163169
This commit is contained in:
Sebastian Pop 2010-08-11 20:31:24 +00:00 committed by Sebastian Pop
parent 974335d63c
commit 9707eeb0cf
3 changed files with 26 additions and 0 deletions
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8
gcc/ChangeLog
View File

@ -1,3 +1,11 @@
2010-08-02 Sebastian Pop <sebastian.pop@amd.com>
* graphite-sese-to-poly.c (rewrite_close_phi_out_of_ssa): Add back
the case removed in the previous patch, when the only phi argument
is defined in the same loop as the phi node itself. Handle it
separately from the invariant case by both propagating it outside
the region and replacing the phi node with an assign.
2010-08-02 Sebastian Pop <sebastian.pop@amd.com>
* graphite-sese-to-poly.c (rewrite_close_phi_out_of_ssa): The only

8
gcc/ChangeLog.graphite
View File

@ -1,3 +1,11 @@
2010-07-29 Sebastian Pop <sebastian.pop@amd.com>
* graphite-sese-to-poly.c (rewrite_close_phi_out_of_ssa): Add back
the case removed in the previous patch, when the only phi argument
is defined in the same loop as the phi node itself. Handle it
separately from the invariant case by both propagating it outside
the region and replacing the phi node with an assign.
2010-07-28 Sebastian Pop <sebastian.pop@amd.com>
* graphite-sese-to-poly.c (rewrite_close_phi_out_of_ssa): The only

10
gcc/graphite-sese-to-poly.c
View File

@ -2249,6 +2249,16 @@ rewrite_close_phi_out_of_ssa (gimple_stmt_iterator *psi, sese region)
return;
}
else if (gimple_bb (SSA_NAME_DEF_STMT (arg))->loop_father == bb->loop_father)
{
propagate_expr_outside_region (res, arg, region);
stmt = gimple_build_assign (res, arg);
remove_phi_node (psi, false);
gsi_insert_before (&gsi, stmt, GSI_NEW_STMT);
SSA_NAME_DEF_STMT (res) = stmt;
return;
}
/* If res is scev analyzable and is not a scalar value, it is safe
to ignore the close phi node: it will be code generated in the
out of Graphite pass. */