diff options
| author | Richard Biener <rguenther@suse.de> | 2024-06-17 14:36:56 +0200 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2024-06-17 14:39:30 +0200 |
| commit | 65e72b95c63a5501cf1482f3814ae8c8e672bf06 (patch) | |
| tree | e1810710b38c8697b31c3bab67bf70dabac9e716 /gcc | |
| parent | 95bfc6abf378a32e502dca0e2938f94d5b0ab094 (diff) | |
| download | gcc-65e72b95c63a5501cf1482f3814ae8c8e672bf06.zip gcc-65e72b95c63a5501cf1482f3814ae8c8e672bf06.tar.gz gcc-65e72b95c63a5501cf1482f3814ae8c8e672bf06.tar.bz2 | |
tree-optimization/115508 - fix ICE with SLP scheduling and extern vector
When there's a permute after an extern vector we can run into a case
that didn't consider the scheduled node being a permute which lacks
a representative.
PR tree-optimization/115508
* tree-vect-slp.cc (vect_schedule_slp_node): Guard check on
representative.
* gcc.target/i386/pr115508.c: New testcase.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/testsuite/gcc.target/i386/pr115508.c | 15 | ||||
| -rw-r--r-- | gcc/tree-vect-slp.cc | 1 |
2 files changed, 16 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/i386/pr115508.c b/gcc/testsuite/gcc.target/i386/pr115508.c new file mode 100644 index 0000000..a97b200 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pr115508.c @@ -0,0 +1,15 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -march=znver1" } */ + +typedef long long v4di __attribute__((vector_size(4 * sizeof (long long)))); + +v4di vec_var; +extern long long array1[]; +long long g(void) +{ + int total_error_4 = 0; + total_error_4 += array1 [0] + array1 [1] + array1 [2] + array1 [3]; + v4di t = vec_var; + long long iorvar = t [1] | t [0] | t [2] | t [3]; + return iorvar + total_error_4; +} diff --git a/gcc/tree-vect-slp.cc b/gcc/tree-vect-slp.cc index 7e3d010..7d18b5b 100644 --- a/gcc/tree-vect-slp.cc +++ b/gcc/tree-vect-slp.cc @@ -9669,6 +9669,7 @@ vect_schedule_slp_node (vec_info *vinfo, si = gsi_after_labels (vinfo->bbs[0]); } else if (is_a <bb_vec_info> (vinfo) + && SLP_TREE_CODE (node) != VEC_PERM_EXPR && gimple_bb (last_stmt) != gimple_bb (stmt_info->stmt) && gimple_could_trap_p (stmt_info->stmt)) { |