From 38a664976f4416537b96beac9f9840f49c8724e0 Mon Sep 17 00:00:00 2001 From: spop Date: Wed, 27 Jul 2011 16:53:09 +0000 Subject: [PATCH] Fix PR49471: canonicalize_loop_ivs should not generate unsigned types. 2011-07-27 Sebastian Pop PR tree-optimization/49471 * tree-ssa-loop-manip.c (canonicalize_loop_ivs): Build an unsigned iv only when the largest type is unsigned. Do not call lang_hooks.types.type_for_size. * testsuite/libgomp.graphite/force-parallel-1.c: Un-xfail. * testsuite/libgomp.graphite/force-parallel-2.c: Adjust pattern. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@176838 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/ChangeLog | 7 +++++++ gcc/tree-ssa-loop-manip.c | 24 +++++++++++++++++++--- libgomp/ChangeLog | 5 +++++ .../testsuite/libgomp.graphite/force-parallel-1.c | 2 +- .../testsuite/libgomp.graphite/force-parallel-2.c | 2 +- 5 files changed, 35 insertions(+), 5 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 46e8c0e..b07d494 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,12 @@ 2011-07-27 Sebastian Pop + PR tree-optimization/49471 + * tree-ssa-loop-manip.c (canonicalize_loop_ivs): Build an unsigned + iv only when the largest type is unsigned. Do not call + lang_hooks.types.type_for_size. + +2011-07-27 Sebastian Pop + PR middle-end/45450 * graphite-poly.c (apply_poly_transforms): Disable legality check after an openscop read. diff --git a/gcc/tree-ssa-loop-manip.c b/gcc/tree-ssa-loop-manip.c index 8176ed8..0cec787 100644 --- a/gcc/tree-ssa-loop-manip.c +++ b/gcc/tree-ssa-loop-manip.c @@ -1200,18 +1200,36 @@ canonicalize_loop_ivs (struct loop *loop, tree *nit, bool bump_in_latch) gimple stmt; edge exit = single_dom_exit (loop); gimple_seq stmts; + enum machine_mode mode; + bool unsigned_p = false; for (psi = gsi_start_phis (loop->header); !gsi_end_p (psi); gsi_next (&psi)) { gimple phi = gsi_stmt (psi); tree res = PHI_RESULT (phi); + bool uns; - if (is_gimple_reg (res) && TYPE_PRECISION (TREE_TYPE (res)) > precision) - precision = TYPE_PRECISION (TREE_TYPE (res)); + type = TREE_TYPE (res); + if (!is_gimple_reg (res) + || (!INTEGRAL_TYPE_P (type) + && !POINTER_TYPE_P (type)) + || TYPE_PRECISION (type) < precision) + continue; + + uns = POINTER_TYPE_P (type) | TYPE_UNSIGNED (type); + + if (TYPE_PRECISION (type) > precision) + unsigned_p = uns; + else + unsigned_p |= uns; + + precision = TYPE_PRECISION (type); } - type = lang_hooks.types.type_for_size (precision, 1); + mode = smallest_mode_for_size (precision, MODE_INT); + precision = GET_MODE_PRECISION (mode); + type = build_nonstandard_integer_type (precision, unsigned_p); if (original_precision != precision) { diff --git a/libgomp/ChangeLog b/libgomp/ChangeLog index c6d9ffd..b9455b4 100644 --- a/libgomp/ChangeLog +++ b/libgomp/ChangeLog @@ -1,3 +1,8 @@ +2011-07-23 Sebastian Pop + + * testsuite/libgomp.graphite/force-parallel-1.c: Un-xfail. + * testsuite/libgomp.graphite/force-parallel-2.c: Adjust pattern. + 2011-07-25 Rainer Orth PR libgomp/45351 diff --git a/libgomp/testsuite/libgomp.graphite/force-parallel-1.c b/libgomp/testsuite/libgomp.graphite/force-parallel-1.c index 71ed332..7f043d8 100644 --- a/libgomp/testsuite/libgomp.graphite/force-parallel-1.c +++ b/libgomp/testsuite/libgomp.graphite/force-parallel-1.c @@ -23,7 +23,7 @@ int main(void) } /* Check that parallel code generation part make the right answer. */ -/* { dg-final { scan-tree-dump-times "1 loops carried no dependency" 2 "graphite" { xfail *-*-* } } } */ +/* { dg-final { scan-tree-dump-times "1 loops carried no dependency" 2 "graphite" } } */ /* { dg-final { cleanup-tree-dump "graphite" } } */ /* { dg-final { scan-tree-dump-times "loopfn" 5 "optimized" } } */ /* { dg-final { cleanup-tree-dump "parloops" } } */ diff --git a/libgomp/testsuite/libgomp.graphite/force-parallel-2.c b/libgomp/testsuite/libgomp.graphite/force-parallel-2.c index 1ce0feb..03d8236 100644 --- a/libgomp/testsuite/libgomp.graphite/force-parallel-2.c +++ b/libgomp/testsuite/libgomp.graphite/force-parallel-2.c @@ -23,7 +23,7 @@ int main(void) } /* Check that parallel code generation part make the right answer. */ -/* { dg-final { scan-tree-dump-times "2 loops carried no dependency" 1 "graphite" } } */ +/* { dg-final { scan-tree-dump-times "2 loops carried no dependency" 2 "graphite" } } */ /* { dg-final { cleanup-tree-dump "graphite" } } */ /* { dg-final { scan-tree-dump-times "loopfn" 5 "optimized" } } */ /* { dg-final { cleanup-tree-dump "parloops" } } */ -- 2.7.4