Hi!
My patch from yesterday apparently broke some V32HImode permutations
as the testcase shows.
The first function assumed it would never be called in d->testing_p mode
and so went right away into emitting the code.
And the second one assumed V32HImode would never reach it, which now
can for the !TARGET_AVX512BW case. We don't have a instruction
in that case though.
Fixed thusly, bootstrapped/regtested on x86_64-linux and i686-linux, ok for
trunk?
2021-08-12 Jakub Jelinek <ja...@redhat.com>
PR target/101860
* config/i386/i386-expand.c (ix86_expand_vec_one_operand_perm_avx512):
If d->testing_p, return true after performing checks instead of
actually expanding the insn.
(expand_vec_perm_broadcast_1): Handle V32HImode - assert
!TARGET_AVX512BW and return false.
* gcc.target/i386/avx512f-pr101860.c: New test.
--- gcc/config/i386/i386-expand.c.jj 2021-08-10 12:37:53.867159317 +0200
+++ gcc/config/i386/i386-expand.c 2021-08-11 11:02:03.994908828 +0200
@@ -18116,6 +18116,9 @@ ix86_expand_vec_one_operand_perm_avx512
return false;
}
+ if (d->testing_p)
+ return true;
+
target = d->target;
op0 = d->op0;
for (int i = 0; i < d->nelt; ++i)
@@ -20481,6 +20484,10 @@ expand_vec_perm_broadcast_1 (struct expa
gcc_assert (!TARGET_AVX2 || d->perm[0]);
return false;
+ case E_V32HImode:
+ gcc_assert (!TARGET_AVX512BW);
+ return false;
+
default:
gcc_unreachable ();
}
--- gcc/testsuite/gcc.target/i386/avx512f-pr101860.c.jj 2021-08-11
11:05:28.090072461 +0200
+++ gcc/testsuite/gcc.target/i386/avx512f-pr101860.c 2021-08-11
11:05:17.157224399 +0200
@@ -0,0 +1,5 @@
+/* PR target/101860 */
+/* { dg-do compile } */
+/* { dg-options "-O2 -mavx512f -mno-avx512bw" } */
+
+#include "../../gcc.dg/torture/vshuf-v32hi.c"
Jakub
