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target/112280 - properly guard permute query

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The following adds guards avoiding code generation to
expand_perm_as_a_vlbr_vstbr_candidate when d.testing_p.

	PR target/112280
	* config/s390/s390.cc (expand_perm_as_a_vlbr_vstbr_candidate):
	Do not generate code when d.testing_p.
This commit is contained in:
Richard Biener 2024-01-11 14:55:50 +01:00
parent cc9cac9f07
commit 655b6cb1ea
1 changed files with 24 additions and 12 deletions
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36
gcc/config/s390/s390.cc
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@ -17867,33 +17867,45 @@ expand_perm_as_a_vlbr_vstbr_candidate (const struct expand_vec_perm_d &d)
if (memcmp (d.perm, perm[0], MAX_VECT_LEN) == 0)
{
rtx target = gen_rtx_SUBREG (V8HImode, d.target, 0);
rtx op0 = gen_rtx_SUBREG (V8HImode, d.op0, 0);
emit_insn (gen_bswapv8hi (target, op0));
if (!d.testing_p)
{
rtx target = gen_rtx_SUBREG (V8HImode, d.target, 0);
rtx op0 = gen_rtx_SUBREG (V8HImode, d.op0, 0);
emit_insn (gen_bswapv8hi (target, op0));
}
return true;
}
if (memcmp (d.perm, perm[1], MAX_VECT_LEN) == 0)
{
rtx target = gen_rtx_SUBREG (V4SImode, d.target, 0);
rtx op0 = gen_rtx_SUBREG (V4SImode, d.op0, 0);
emit_insn (gen_bswapv4si (target, op0));
if (!d.testing_p)
{
rtx target = gen_rtx_SUBREG (V4SImode, d.target, 0);
rtx op0 = gen_rtx_SUBREG (V4SImode, d.op0, 0);
emit_insn (gen_bswapv4si (target, op0));
}
return true;
}
if (memcmp (d.perm, perm[2], MAX_VECT_LEN) == 0)
{
rtx target = gen_rtx_SUBREG (V2DImode, d.target, 0);
rtx op0 = gen_rtx_SUBREG (V2DImode, d.op0, 0);
emit_insn (gen_bswapv2di (target, op0));
if (!d.testing_p)
{
rtx target = gen_rtx_SUBREG (V2DImode, d.target, 0);
rtx op0 = gen_rtx_SUBREG (V2DImode, d.op0, 0);
emit_insn (gen_bswapv2di (target, op0));
}
return true;
}
if (memcmp (d.perm, perm[3], MAX_VECT_LEN) == 0)
{
rtx target = gen_rtx_SUBREG (V1TImode, d.target, 0);
rtx op0 = gen_rtx_SUBREG (V1TImode, d.op0, 0);
emit_insn (gen_bswapv1ti (target, op0));
if (!d.testing_p)
{
rtx target = gen_rtx_SUBREG (V1TImode, d.target, 0);
rtx op0 = gen_rtx_SUBREG (V1TImode, d.op0, 0);
emit_insn (gen_bswapv1ti (target, op0));
}
return true;
}