[hexagon] Add {hvx,}hexagon_{protos,circ_brev...}

Add definitions for Hexagon, Hexagon circular/bit-reverse and HVX
intrinsics.

Author: androm3da

clang/lib/Headers/CMakeLists.txt

@@ -66,6 +66,10 @@ set(files
   fmaintrin.h
   fxsrintrin.h
   gfniintrin.h
+  hexagon_circ_brev_intrinsics.h
+  hexagon_protos.h
+  hexagon_types.h
+  hvx_hexagon_protos.h
   hresetintrin.h
   htmintrin.h
   htmxlintrin.h

clang/lib/Headers/hexagon_circ_brev_intrinsics.h

@@ -0,0 +1,36 @@
+// REQUIRES: hexagon-registered-target
+
+// RUN: %clang_cc1 -O0 -internal-isystem %S/../../lib/Headers/ \
+// RUN:   -target-cpu hexagonv67t -triple hexagon-unknown-elf \
+// RUN:   -emit-llvm %s -o - | FileCheck %s
+
+// RUN: %clang_cc1 -O0 -internal-isystem %S/../../lib/Headers/ \
+// RUN:   -target-cpu hexagonv67t -triple hexagon-unknown-elf -x c++ \
+// RUN:   -emit-llvm %s -o - | FileCheck %s
+
+// RUN: not %clang_cc1 -O0 -internal-isystem %S/../../lib/Headers/ \
+// RUN:   -target-cpu hexagonv68 -triple hexagon-unknown-elf -x c++ \
+// RUN:   -fsyntax-only %s 2>&1 | FileCheck --implicit-check-not='error:' \
+// RUN:   --check-prefix=CHECK-ERR-CXX %s
+
+// RUN: not %clang_cc1 -O0 -internal-isystem %S/../../lib/Headers/ \
+// RUN:   -target-cpu hexagonv68 -triple hexagon-unknown-elf -std=c99 \
+// RUN:   -Wimplicit-function-declaration -Werror -fsyntax-only %s 2>&1 | \
+// RUN: FileCheck --implicit-check-not='error:' --check-prefix=CHECK-ERR-C99 %s
+
+#include <hexagon_protos.h>
+
+void test_audio() {
+  unsigned int b;
+  unsigned long long c;
+
+  // CHECK-ERR-CXX: error: use of undeclared identifier 'Q6_R_clip_RI'
+  // CHECK-ERR-C99: error: implicit declaration of function 'Q6_R_clip_RI' is invalid in C99
+  // CHECK: call i32 @llvm.hexagon.A7.clip
+  b = Q6_R_clip_RI(b, 9);
+
+  // CHECK-ERR-CXX: error: use of undeclared identifier 'Q6_P_cround_PI'
+  // CHECK-ERR-C99: error: implicit declaration of function 'Q6_P_cround_PI' is invalid in C99
+  // CHECK: call i64 @llvm.hexagon.A7.cround
+  c = Q6_P_cround_PI(c, 12);
+}

clang/lib/Headers/hexagon_protos.h

@@ -0,0 +1,28 @@
+// REQUIRES: hexagon-registered-target
+
+// RUN: %clang_cc1 -O0 -internal-isystem %S/../../lib/Headers/ \
+// RUN:   -target-cpu hexagonv68 -triple hexagon-unknown-elf \
+// RUN:   -emit-llvm %s -o - | FileCheck %s
+
+// RUN: %clang_cc1 -O0 -internal-isystem %S/../../lib/Headers/ \
+// RUN:   -target-cpu hexagonv68 -triple hexagon-unknown-elf -x c++ \
+// RUN:   -emit-llvm %s -o - | FileCheck %s
+
+#include <hexagon_protos.h>
+
+// expected-no-diagnostics
+
+void test_protos(float a, unsigned int b) {
+  unsigned char c;
+  // CHECK: call i64 @llvm.hexagon.A2.absp
+  b = Q6_P_abs_P(b);
+}
+
+void test_dma() {
+  unsigned int b;
+
+  // CHECK: call i32 @llvm.hexagon.Y6.dmpoll
+  b = Q6_R_dmpoll();
+  // CHECK: call i32 @llvm.hexagon.Y6.dmpause
+  b = Q6_R_dmpause();
+}

clang/lib/Headers/hexagon_types.h

@@ -0,0 +1,37 @@
+// REQUIRES: hexagon-registered-target
+
+// RUN: %clang_cc1 -O0 -internal-isystem %S/../../lib/Headers/ \
+// RUN:   -target-cpu hexagonv68 -triple hexagon-unknown-elf \
+// RUN:   -target-feature +hvx-length128b -target-feature +hvxv68 \
+// RUN:   -emit-llvm %s -o - | FileCheck --check-prefix=CHECK %s
+
+// RUN: %clang_cc1 -O0 -internal-isystem %S/../../lib/Headers/ \
+// RUN:   -target-cpu hexagonv68 -triple hexagon-unknown-elf -DDIRECT \
+// RUN:   -target-feature +hvx-length128b -target-feature +hvxv68 \
+// RUN:   -emit-llvm %s -o - | FileCheck --check-prefix=CHECK %s
+
+// RUN: %clang_cc1 -O0 -internal-isystem %S/../../lib/Headers/ \
+// RUN:   -target-cpu hexagonv68 -triple hexagon-unknown-elf -x c++ \
+// RUN:   -target-feature +hvx-length128b -target-feature +hvxv68 \
+// RUN:   -emit-llvm %s -o - | FileCheck --check-prefix=CHECK %s
+
+// RUN: %clang_cc1 -O0 -internal-isystem %S/../../lib/Headers/ \
+// RUN:   -target-cpu hexagonv68 -triple hexagon-unknown-elf \
+// RUN:   -target-feature +hvx-length64b -target-feature +hvxv68 \
+// RUN:   -emit-llvm %s -o - | FileCheck --check-prefix=CHECK-64 %s
+
+#ifdef DIRECT
+#include <hvx_hexagon_protos.h>
+#else
+#include <hexagon_protos.h>
+#endif
+#include <hexagon_types.h>
+
+// expected-no-diagnostics
+
+void test_hvx_protos(float a, unsigned int b) {
+  HVX_VectorPair c;
+  // CHECK-64: call <32 x i32> @llvm.hexagon.V6.v6mpyhubs10
+  // CHECK:    call <64 x i32> @llvm.hexagon.V6.v6mpyhubs10.128B
+  c = Q6_Ww_v6mpy_WubWbI_h(c, c, 12);
+}