Add partial support for building/testing/benchmarking XNNPACK on Hexa…

…gon. Additional work would need to be done to get this fully working in the Bazel build (notably, connecting to a Qualcomm SDK) but this extends the basic build rules enough to add specializations for Hexagon to XNNPACK.

PiperOrigin-RevId: 625361939

BUILD.bazel

@@ -2937,6 +2937,14 @@ xnnpack_cc_library(
     wasmsimd_srcs = WASM32_ASM_MICROKERNEL_SRCS,
 )
 
+xnnpack_cc_library(
+    name = "hvx_microkernels",
+    gcc_copts = xnnpack_gcc_std_copts(),
+    hvx_srcs = ALL_HEXAGON_MICROKERNEL_SRCS,
+    msvc_copts = xnnpack_msvc_std_copts(),
+    deps = [":microkernels_h"],
+)
+
 xnnpack_cc_library(
     name = "log_level_default",
     defines = select({
@@ -3087,6 +3095,7 @@ xnnpack_aggregate_library(
         ":avxvnni_enabled": [":avxvnni_bench_microkernels"],
         "//conditions:default": [],
     }),
+    hvx_deps = [":hvx_microkernels"],
     wasm_deps = [
         ":wasm_bench_microkernels",
         ":asm_microkernels",
@@ -3195,6 +3204,7 @@ xnnpack_aggregate_library(
         ":avx512fp16_enabled": [":avx512fp16_prod_microkernels"],
         "//conditions:default": [],
     }),
+    hvx_deps = [":hvx_microkernels"],
     wasm_deps = [
         ":wasm_prod_microkernels",
         ":asm_microkernels",
@@ -3310,6 +3320,7 @@ xnnpack_aggregate_library(
         ":avx512fp16_enabled": [":avx512fp16_test_microkernels"],
         "//conditions:default": [],
     }),
+    hvx_deps = [":hvx_microkernels"],
     wasm_deps = [
         ":wasm_test_microkernels",
         ":asm_microkernels",

build_defs.bzl

@@ -26,6 +26,10 @@ def xnnpack_std_cxxopts():
     """Compiler flags to specify language standard for C++ sources."""
     return ["-std=gnu++14"]
 
+def xnnpack_gunit_deps_for_library():
+    """Depencies needed for a library to use gunit."""
+    return ["@com_google_googletest//:gtest_main"]
+
 def xnnpack_optional_ruy_copts():
     """Compiler flags to optionally enable Ruy benchmarks."""
     return []
@@ -73,6 +77,7 @@ def xnnpack_cc_library(
         x86_srcs = [],
         aarch32_srcs = [],
         aarch64_srcs = [],
+        hvx_srcs = [],
         riscv_srcs = [],
         wasm_srcs = [],
         wasmsimd_srcs = [],
@@ -88,6 +93,7 @@ def xnnpack_cc_library(
         msvc_x86_64_copts = [],
         aarch32_copts = [],
         aarch64_copts = [],
+        hvx_copts = [],
         riscv_copts = [],
         wasm_copts = [],
         wasmsimd_copts = [],
@@ -110,6 +116,7 @@ def xnnpack_cc_library(
       x86_srcs: The list of x86-specific source files.
       aarch32_srcs: The list of AArch32-specific source files.
       aarch64_srcs: The list of AArch64-specific source files.
+      hvx_srcs: The list of HVX-specific source files.
       riscv_srcs: The list of RISC-V-specific source files.
       wasm_srcs: The list of WebAssembly 1.0-specific source files.
       wasmsimd_srcs: The list of WebAssembly SIMD-specific source files.
@@ -131,6 +138,7 @@ def xnnpack_cc_library(
                          builds.
       aarch32_copts: The list of compiler flags to use in AArch32 builds.
       aarch64_copts: The list of compiler flags to use in AArch64 builds.
+      hvx_copts: The list of compiler flags to use in HVX builds.
       riscv_copts: The list of compiler flags to use in RISC-V builds.
       wasm_copts: The list of compiler flags to use in WebAssembly 1.0 builds.
       wasmsimd_copts: The list of compiler flags to use in WebAssembly SIMD
@@ -226,6 +234,7 @@ def xnnpack_aggregate_library(
         x86_deps = [],
         aarch32_deps = [],
         aarch64_deps = [],
+        hvx_deps = [],
         riscv_deps = [],
         wasm_deps = [],
         wasmsimd_deps = [],
@@ -240,6 +249,7 @@ def xnnpack_aggregate_library(
       x86_deps: The list of libraries to link in x86 and x86-64 builds.
       aarch32_deps: The list of libraries to link in AArch32 builds.
       aarch64_deps: The list of libraries to link in AArch64 builds.
+      hvx_deps: The list of libraries to link in HVX builds.
       riscv_deps: The list of libraries to link in RISC-V builds.
       wasm_deps: The list of libraries to link in WebAssembly 1.0 builds.
       wasmsimd_deps: The list of libraries to link in WebAssembly SIMD builds.

eval/BUILD.bazel

@@ -7,6 +7,7 @@ load(
     "//:build_defs.bzl",
     "xnnpack_benchmark",
     "xnnpack_cc_library",
+    "xnnpack_gunit_deps_for_library",
     "xnnpack_unit_test",
 )
 
@@ -226,14 +227,13 @@ xnnpack_cc_library(
     testonly = True,
     srcs = ["math-evaluation-tester.cc"],
     hdrs = ["math-evaluation-tester.h"],
-    deps = [
+    deps = xnnpack_gunit_deps_for_library() + [
         "@FP16",
         "//:aligned_allocator",
         "//:common",
         "//:math",
         "//:math_stubs",
         "@pthreadpool",
-        "@com_google_googletest//:gtest_main",
     ],
 )