Hi All,
This patch makes the Dot Product extension mandatory on Armv8.4-A.
Regtested on aarch64-none-elf and no regressions.
gcc/
2018-01-09 Tamar Christina <tamar.christ...@arm.com>
* config/aarch64/aarch64.h
(AARCH64_FL_FOR_ARCH8_4): Add AARCH64_FL_DOTPROD.
gcc/testsuite/
2018-01-09 Tamar Christina <tamar.christ...@arm.com>
* gcc.target/aarch64/advsimd-intrinsics/vdot-compile-2.c: New.
Ok for trunk?
Thanks,
Tamar
--
diff --git a/gcc/config/aarch64/aarch64.h b/gcc/config/aarch64/aarch64.h
index 20cef53079c955733db105331b7f1bd3bdb03005..02546e278ed860f0e42fa1423ceb39f1d4cb5e9b 100644
--- a/gcc/config/aarch64/aarch64.h
+++ b/gcc/config/aarch64/aarch64.h
@@ -171,7 +171,7 @@ extern unsigned aarch64_architecture_version;
#define AARCH64_FL_FOR_ARCH8_3 \
(AARCH64_FL_FOR_ARCH8_2 | AARCH64_FL_V8_3)
#define AARCH64_FL_FOR_ARCH8_4 \
- (AARCH64_FL_FOR_ARCH8_3 | AARCH64_FL_V8_4)
+ (AARCH64_FL_FOR_ARCH8_3 | AARCH64_FL_V8_4 | AARCH64_FL_DOTPROD)
/* Macros to test ISA flags. */
diff --git a/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vdot-compile-2.c b/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vdot-compile-2.c
new file mode 100644
index 0000000000000000000000000000000000000000..7d8d641bcf0f4cc31b9df51b0c0c499bc8dedfce
--- /dev/null
+++ b/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vdot-compile-2.c
@@ -0,0 +1,73 @@
+/* { dg-do compile { target { aarch64*-*-* } } } */
+/* { dg-additional-options "-O3 -march=armv8.4-a" } */
+
+#include <arm_neon.h>
+
+/* Unsigned Dot Product instructions. */
+
+uint32x2_t ufoo (uint32x2_t r, uint8x8_t x, uint8x8_t y)
+{
+ return vdot_u32 (r, x, y);
+}
+
+uint32x4_t ufooq (uint32x4_t r, uint8x16_t x, uint8x16_t y)
+{
+ return vdotq_u32 (r, x, y);
+}
+
+uint32x2_t ufoo_lane (uint32x2_t r, uint8x8_t x, uint8x8_t y)
+{
+ return vdot_lane_u32 (r, x, y, 0);
+}
+
+uint32x2_t ufoo_laneq (uint32x2_t r, uint8x8_t x, uint8x16_t y)
+{
+ return vdot_laneq_u32 (r, x, y, 0);
+}
+
+uint32x4_t ufooq_lane (uint32x4_t r, uint8x16_t x, uint8x8_t y)
+{
+ return vdotq_lane_u32 (r, x, y, 0);
+}
+
+uint32x4_t ufooq_laneq (uint32x4_t r, uint8x16_t x, uint8x16_t y)
+{
+ return vdotq_laneq_u32 (r, x, y, 0);
+}
+
+/* Signed Dot Product instructions. */
+
+int32x2_t sfoo (int32x2_t r, int8x8_t x, int8x8_t y)
+{
+ return vdot_s32 (r, x, y);
+}
+
+int32x4_t sfooq (int32x4_t r, int8x16_t x, int8x16_t y)
+{
+ return vdotq_s32 (r, x, y);
+}
+
+int32x2_t sfoo_lane (int32x2_t r, int8x8_t x, int8x8_t y)
+{
+ return vdot_lane_s32 (r, x, y, 0);
+}
+
+int32x2_t sfoo_laneq (int32x2_t r, int8x8_t x, int8x16_t y)
+{
+ return vdot_laneq_s32 (r, x, y, 0);
+}
+
+int32x4_t sfooq_lane (int32x4_t r, int8x16_t x, int8x8_t y)
+{
+ return vdotq_lane_s32 (r, x, y, 0);
+}
+
+int32x4_t sfooq_laneq (int32x4_t r, int8x16_t x, int8x16_t y)
+{
+ return vdotq_laneq_s32 (r, x, y, 0);
+}
+
+/* { dg-final { scan-assembler-times {[us]dot\tv[0-9]+\.2s, v[0-9]+\.8b, v[0-9]+\.8b} 2 } } */
+/* { dg-final { scan-assembler-times {[us]dot\tv[0-9]+\.2s, v[0-9]+\.8b, v[0-9]+\.4b\[[0-9]+\]} 4 } } */
+/* { dg-final { scan-assembler-times {[us]dot\tv[0-9]+\.4s, v[0-9]+\.16b, v[0-9]+\.16b} 2 } } */
+/* { dg-final { scan-assembler-times {[us]dot\tv[0-9]+\.4s, v[0-9]+\.16b, v[0-9]+\.4b\[[0-9]+\]} 4 } } */
