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| author | Richard Henderson <richard.henderson@linaro.org> | 2025-07-04 08:20:36 -0600 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2025-07-04 15:52:22 +0100 |
| commit | 56ddef77944b4441f199b5e15c8fc1a058fd3335 (patch) | |
| tree | f3b20e950e95f358726fb8d4736583e2363f7bb5 | |
| parent | 91afd009bab55b0b479e6fb0aadc9366e9bd6209 (diff) | |
| download | qemu-56ddef77944b4441f199b5e15c8fc1a058fd3335.zip qemu-56ddef77944b4441f199b5e15c8fc1a058fd3335.tar.gz qemu-56ddef77944b4441f199b5e15c8fc1a058fd3335.tar.bz2 | |
target/arm: Split out do_whilel from helper_sve_whilel
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250704142112.1018902-74-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| -rw-r--r-- | target/arm/tcg/sve_helper.c | 26 |
1 files changed, 16 insertions, 10 deletions
diff --git a/target/arm/tcg/sve_helper.c b/target/arm/tcg/sve_helper.c index a62a647..741d043 100644 --- a/target/arm/tcg/sve_helper.c +++ b/target/arm/tcg/sve_helper.c @@ -4107,19 +4107,14 @@ static uint32_t pred_count_test(uint32_t elements, uint32_t count, bool invert) return flags; } -uint32_t HELPER(sve_whilel)(void *vd, uint32_t count, uint32_t pred_desc) +/* D must be cleared on entry. */ +static void do_whilel(ARMPredicateReg *d, uint64_t esz_mask, + uint32_t count, uint32_t oprbits) { - intptr_t oprsz = FIELD_EX32(pred_desc, PREDDESC, OPRSZ); - intptr_t esz = FIELD_EX32(pred_desc, PREDDESC, ESZ); - uint64_t esz_mask = pred_esz_masks[esz]; - ARMPredicateReg *d = vd; - intptr_t i, oprbits = oprsz * 8; - tcg_debug_assert(count <= oprbits); - - /* Begin with a zero predicate register. */ - memset(d, 0, sizeof(*d)); if (count) { + uint32_t i; + /* Set all of the requested bits. */ for (i = 0; i < count / 64; ++i) { d->p[i] = esz_mask; @@ -4128,7 +4123,18 @@ uint32_t HELPER(sve_whilel)(void *vd, uint32_t count, uint32_t pred_desc) d->p[i] = MAKE_64BIT_MASK(0, count & 63) & esz_mask; } } +} + +uint32_t HELPER(sve_whilel)(void *vd, uint32_t count, uint32_t pred_desc) +{ + uint32_t oprsz = FIELD_EX32(pred_desc, PREDDESC, OPRSZ); + uint32_t esz = FIELD_EX32(pred_desc, PREDDESC, ESZ); + uint32_t oprbits = oprsz * 8; + uint64_t esz_mask = pred_esz_masks[esz]; + ARMPredicateReg *d = vd; + memset(d, 0, sizeof(*d)); + do_whilel(d, esz_mask, count, oprbits); return pred_count_test(oprbits, count, false); } |