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| author | Richard Biener <rguenther@suse.de> | 2025-07-11 13:14:13 +0200 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2025-07-11 14:38:16 +0200 |
| commit | f451ef41bdcbf6d86397f734e1227c94b01cae17 (patch) | |
| tree | b73d4085314dd510cc1ee71bc1dc6fe2f5d731fb /gcc/testsuite | |
| parent | dc503631a5086d20e633638d8631334385f9cf13 (diff) | |
| download | gcc-f451ef41bdcbf6d86397f734e1227c94b01cae17.zip gcc-f451ef41bdcbf6d86397f734e1227c94b01cae17.tar.gz gcc-f451ef41bdcbf6d86397f734e1227c94b01cae17.tar.bz2 | |
tree-optimization/121034 - fix reduction vectorization
The following fixes the loop following the reduction chain to
properly visit all SLP nodes involved and makes the stmt info
and the SLP node we track match.
PR tree-optimization/121034
* tree-vect-loop.cc (vectorizable_reduction): Cleanup
reduction chain following code.
* gcc.dg/vect/pr121034.c: New testcase.
Diffstat (limited to 'gcc/testsuite')
| -rw-r--r-- | gcc/testsuite/gcc.dg/vect/pr121034.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/vect/pr121034.c b/gcc/testsuite/gcc.dg/vect/pr121034.c new file mode 100644 index 0000000..de20781 --- /dev/null +++ b/gcc/testsuite/gcc.dg/vect/pr121034.c @@ -0,0 +1,17 @@ +/* { dg-do compile } */ +/* { dg-additional-options "-O3" } */ + +int b, e; +char c, d; +unsigned g; +int abs(int); +void f() { + char *a = &d; + int h; + for (; e; e++) { + h = 0; + for (; h < 16; h++) + g += __builtin_abs(a[h] - c); + a += b; + } +} |