[PULL 53/55] target/arm: Export bfdotadd from vec_helper.c

Maintainers: Cameron Esfahani <dirty@apple.com>, Roman Bolshakov <r.bolshakov@yadro.com>, Paolo Bonzini <pbonzini@redhat.com>, Riku Voipio <riku.voipio@iki.fi>, Richard Henderson <richard.henderson@linaro.org>, "Michael S. Tsirkin" <mst@redhat.com>, Ani Sinha <ani@anisinha.ca>, Dongjiu Geng <gengdongjiu1@gmail.com>, Igor Mammedov <imammedo@redhat.com>, Alistair Francis <alistair@alistair23.me>, "Edgar E. Iglesias" <edgar.iglesias@gmail.com>, Peter Maydell <peter.maydell@linaro.org>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Fam Zheng <fam@euphon.net>, Hannes Reinecke <hare@suse.com>, Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>, Artyom Tarasenko <atar4qemu@gmail.com>, Laurent Vivier <laurent@vivier.eu>, John Snow <jsnow@redhat.com>, Cleber Rosa <crosa@redhat.com>, Beraldo Leal <bleal@redhat.com>, Alexander Graf <agraf@csgraf.de>, Halil Pasic <pasic@linux.ibm.com>, Christian Borntraeger <borntraeger@linux.ibm.com>, Eric Farman <farman@linux.ibm.com>, Cornelia Huck <cohuck@redhat.com>, Thomas Huth <thuth@redhat.com>, David Hildenbrand <david@redhat.com>, Eduardo Habkost <eduardo@habkost.net>
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[PULL 53/55] target/arm: Export bfdotadd from vec_helper.c
Posted by Peter Maydell 2 years, 10 months ago
From: Richard Henderson <richard.henderson@linaro.org>

We will need this over in sme_helper.c.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220607203306.657998-19-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target/arm/vec_internal.h | 13 +++++++++++++
 target/arm/vec_helper.c   |  2 +-
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/target/arm/vec_internal.h b/target/arm/vec_internal.h
index 1d527fadac1..1f4ed80ff76 100644
--- a/target/arm/vec_internal.h
+++ b/target/arm/vec_internal.h
@@ -230,4 +230,17 @@ uint64_t pmull_h(uint64_t op1, uint64_t op2);
  */
 uint64_t pmull_w(uint64_t op1, uint64_t op2);
 
+/**
+ * bfdotadd:
+ * @sum: addend
+ * @e1, @e2: multiplicand vectors
+ *
+ * BFloat16 2-way dot product of @e1 & @e2, accumulating with @sum.
+ * The @e1 and @e2 operands correspond to the 32-bit source vector
+ * slots and contain two Bfloat16 values each.
+ *
+ * Corresponds to the ARM pseudocode function BFDotAdd.
+ */
+float32 bfdotadd(float32 sum, uint32_t e1, uint32_t e2);
+
 #endif /* TARGET_ARM_VEC_INTERNAL_H */
diff --git a/target/arm/vec_helper.c b/target/arm/vec_helper.c
index 26c373e522f..9a9c034e36f 100644
--- a/target/arm/vec_helper.c
+++ b/target/arm/vec_helper.c
@@ -2557,7 +2557,7 @@ DO_MMLA_B(gvec_usmmla_b, do_usmmla_b)
  * BFloat16 Dot Product
  */
 
-static float32 bfdotadd(float32 sum, uint32_t e1, uint32_t e2)
+float32 bfdotadd(float32 sum, uint32_t e1, uint32_t e2)
 {
     /* FPCR is ignored for BFDOT and BFMMLA. */
     float_status bf_status = {
-- 
2.25.1