Since
https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=2e7abd09621a4401d44f4513adf126bce4b4828b
we only allow VLSmodes with size <= TARGET_MIN_VLEN * TARGET_MAX_LMUL.
So when -march=rv64gcv default LMUL = 1, we don't have VLS modes of
256/512/1024 vectors.
Disable them in vect test which fixes the following FAILs in the regression:
FAIL: gcc.dg/vect/bb-slp-pr65935.c -flto -ffat-lto-objects
scan-tree-dump-times slp1 "optimized: basic block" 11
FAIL: gcc.dg/vect/bb-slp-pr65935.c scan-tree-dump-times slp1 "optimized: basic
block" 11
FAIL: gcc.dg/vect/bb-slp-subgroups-2.c -flto -ffat-lto-objects
scan-tree-dump-times slp2 "optimized: basic block" 1
FAIL: gcc.dg/vect/bb-slp-subgroups-2.c scan-tree-dump-times slp2 "optimized:
basic block" 1
gcc/testsuite/ChangeLog:
* lib/target-supports.exp: Remove 256/512/1024 vectors.
---
gcc/testsuite/lib/target-supports.exp | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/gcc/testsuite/lib/target-supports.exp
b/gcc/testsuite/lib/target-supports.exp
index 370df10978d..7f13ff0ca56 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -9033,7 +9033,7 @@ proc available_vector_sizes { } {
lappend result 4096 2048 1024 512 256 128 64 32 16 8 4 2
} elseif { [istarget riscv*-*-*] } {
if { [check_effective_target_riscv_v] } {
- lappend result 0 32 64 128 256 512 1024
+ lappend result 0 32 64 128
}
lappend result 128
} else {
--
2.36.3
