From 90bb7d7ab2ccd6b7c9c311867e319057b402a075 Mon Sep 17 00:00:00 2001 From: Richard Biener Date: Thu, 3 Jan 2013 12:34:34 +0000 Subject: [PATCH] re PR tree-optimization/55857 (ICE: verify_ssa failed) 2013-01-03 Richard Biener PR tree-optimization/55857 * tree-vect-stmts.c (vectorizable_load): Do not setup re-alignment for invariant loads. * gcc.dg/vect/pr55857-1.c: New testcase. * gcc.dg/vect/pr55857-2.c: Likewise. From-SVN: r194850 --- gcc/ChangeLog | 6 ++++++ gcc/testsuite/ChangeLog | 6 ++++++ gcc/testsuite/gcc.dg/vect/pr55857-1.c | 17 +++++++++++++++++ gcc/testsuite/gcc.dg/vect/pr55857-2.c | 21 +++++++++++++++++++++ gcc/tree-vect-stmts.c | 3 ++- 5 files changed, 52 insertions(+), 1 deletion(-) create mode 100644 gcc/testsuite/gcc.dg/vect/pr55857-1.c create mode 100644 gcc/testsuite/gcc.dg/vect/pr55857-2.c diff --git a/gcc/ChangeLog b/gcc/ChangeLog index da7cc295e71c..0680d238db32 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2013-01-03 Richard Biener + + PR tree-optimization/55857 + * tree-vect-stmts.c (vectorizable_load): Do not setup + re-alignment for invariant loads. + 2013-01-03 Richard Biener PR lto/55848 diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 0b77bdd0ba84..3beff10c13f5 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,9 @@ +2013-01-03 Richard Biener + + PR tree-optimization/55857 + * gcc.dg/vect/pr55857-1.c: New testcase. + * gcc.dg/vect/pr55857-2.c: Likewise. + 2013-01-03 Jakub Jelinek PR rtl-optimization/55838 diff --git a/gcc/testsuite/gcc.dg/vect/pr55857-1.c b/gcc/testsuite/gcc.dg/vect/pr55857-1.c new file mode 100644 index 000000000000..ad41d3043218 --- /dev/null +++ b/gcc/testsuite/gcc.dg/vect/pr55857-1.c @@ -0,0 +1,17 @@ +/* { dg-do compile } */ + +void +foo (int *data, unsigned len, const int qlp_coeff[], int lp, int residual[]) +{ + int i; + int sum; + for(i = 0; i < (int)len; i++) + { + sum = 0; + sum += qlp_coeff[1] * data[i-2]; + sum += qlp_coeff[0] * data[i-1]; + residual[i] = data[i] - (sum >> lp); + } +} + +/* { dg-final { cleanup-tree-dump "vect" } } */ diff --git a/gcc/testsuite/gcc.dg/vect/pr55857-2.c b/gcc/testsuite/gcc.dg/vect/pr55857-2.c new file mode 100644 index 000000000000..3bfff8247945 --- /dev/null +++ b/gcc/testsuite/gcc.dg/vect/pr55857-2.c @@ -0,0 +1,21 @@ +/* { dg-do compile } */ + +void foo (int *data, unsigned len, const int qlp_coeff[], + unsigned order, int lp, int residual[]) +{ + int i; + int sum; + if(order == 2) + for(i = 0; i < (int)len; i++) + { + sum = 0; + sum += qlp_coeff[1] * data[i-2]; + sum += qlp_coeff[0] * data[i-1]; + residual[i] = data[i] - (sum >> lp); + } + else + for(i = 0; i < (int)len; i++) + residual[i] = data[i] - ((qlp_coeff[0] * data[i-1]) >> lp); +} + +/* { dg-final { cleanup-tree-dump "vect" } } */ diff --git a/gcc/tree-vect-stmts.c b/gcc/tree-vect-stmts.c index da9f12b5c8cb..dfbce969fdb2 100644 --- a/gcc/tree-vect-stmts.c +++ b/gcc/tree-vect-stmts.c @@ -4927,7 +4927,8 @@ vectorizable_load (gimple stmt, gimple_stmt_iterator *gsi, gimple *vec_stmt, if ((alignment_support_scheme == dr_explicit_realign_optimized || alignment_support_scheme == dr_explicit_realign) - && !compute_in_loop) + && !compute_in_loop + && !integer_zerop (DR_STEP (dr))) { msq = vect_setup_realignment (first_stmt, gsi, &realignment_token, alignment_support_scheme, NULL_TREE, -- 2.43.5