[ARM] Handle +t2dsp feature as an ArchExtKind in ARMTargetParser.def

Currently, the availability of DSP instructions (ACLE 6.4.7) is handled in
a hand-rolled tricky condition block in lib/Basic/Targets.cpp, with a FIXME:
attached.

http://reviews.llvm.org/D12937 moved the handling of +t2dsp over to
ARMTargetParser.def in LLVM, to be in line with other architecture extensions.

This is the corresponding patch to clang, to clear the FIXME: and update
the tests.

Differential Revision: http://reviews.llvm.org/D12938

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@248154 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Basic/Targets.cpp b/lib/Basic/Targets.cpp
index 2269c83d4966d22528477001e486299d78d50cde..148d07e5c3ba4a32848a2bd69479d109dfe804da 100644 (file)
--- a/lib/Basic/Targets.cpp
+++ b/lib/Basic/Targets.cpp
@@ -4121,6 +4121,7 @@ class ARMTargetInfo : public TargetInfo {
 
   unsigned CRC : 1;
   unsigned Crypto : 1;
+  unsigned T2DSP : 1;
   unsigned Unaligned : 1;
 
   enum {
@@ -4472,6 +4473,7 @@ public:
     FPU = 0;
     CRC = 0;
     Crypto = 0;
+    T2DSP = 0;
     Unaligned = 1;
     SoftFloat = SoftFloatABI = false;
     HWDiv = 0;
@@ -4507,6 +4509,8 @@ public:
         CRC = 1;
       } else if (Feature == "+crypto") {
         Crypto = 1;
+      } else if (Feature == "+t2dsp") {
+        T2DSP = 1;
       } else if (Feature == "+fp-only-sp") {
         HW_FP_remove |= HW_FP_DP | HW_FP_HP;
       } else if (Feature == "+strict-align") {
@@ -4743,11 +4747,7 @@ public:
 
     // ACLE 6.4.7 DSP instructions
     bool hasDSP = false;
-    bool is5EOrAbove = (ArchVersion >= 6 ||
-                       (ArchVersion == 5 && CPUAttr.count('E')));
-    // FIXME: We are not getting all 32-bit ARM architectures
-    bool is32Bit = (!isThumb() || supportsThumb2());
-    if (is5EOrAbove && is32Bit && (CPUProfile != "M" || CPUAttr  == "7EM")) {
+    if (T2DSP) {
       Builder.defineMacro("__ARM_FEATURE_DSP", "1");
       hasDSP = true;
     }

diff --git a/test/CodeGen/arm-target-features.c b/test/CodeGen/arm-target-features.c
index 6f8e248cd496fa0c162aed6632b0703e3d93d9ff..f35be73502b591add14e5166eeaf3b4dd6e62511 100644 (file)
--- a/test/CodeGen/arm-target-features.c
+++ b/test/CodeGen/arm-target-features.c
@@ -1,15 +1,15 @@
 // REQUIRES: arm-registered-target
 
 // RUN: %clang_cc1 -triple thumbv7-linux-gnueabihf -target-cpu cortex-a8 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP3
-// CHECK-VFP3: "target-features"="+neon,+vfp3"
+// CHECK-VFP3: "target-features"="+neon,+t2dsp,+vfp3"
 
 
 // RUN: %clang_cc1 -triple thumbv7-linux-gnueabi -target-cpu cortex-a9 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP3-FP16
-// CHECK-VFP3-FP16: "target-features"="+fp16,+neon,+vfp3"
+// CHECK-VFP3-FP16: "target-features"="+fp16,+neon,+t2dsp,+vfp3"
 
 
 // RUN: %clang_cc1 -triple thumbv7-linux-gnueabihf -target-cpu cortex-a5 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP4
-// CHECK-VFP4: "target-features"="+neon,+vfp4"
+// CHECK-VFP4: "target-features"="+neon,+t2dsp,+vfp4"
 
 
 // RUN: %clang_cc1 -triple thumbv7-linux-gnueabihf -target-cpu cortex-a7 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP4-DIV
@@ -18,39 +18,41 @@
 // RUN: %clang_cc1 -triple armv7-linux-gnueabihf -target-cpu cortex-a17 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP4-DIV
 // RUN: %clang_cc1 -triple thumbv7s-linux-gnueabi -target-cpu swift -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP4-DIV
 // RUN: %clang_cc1 -triple thumbv7-linux-gnueabihf -target-cpu krait -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP4-DIV
-// CHECK-VFP4-DIV: "target-features"="+hwdiv,+hwdiv-arm,+neon,+vfp4"
+// CHECK-VFP4-DIV: "target-features"="+hwdiv,+hwdiv-arm,+neon,+t2dsp,+vfp4"
 
 
 // RUN: %clang_cc1 -triple thumbv7s-apple-ios7.0 -target-cpu cyclone -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-BASIC-V8
 // RUN: %clang_cc1 -triple armv8-linux-gnueabi -target-cpu cortex-a53 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-BASIC-V8
 // RUN: %clang_cc1 -triple thumbv8-linux-gnueabihf -target-cpu cortex-a57 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-BASIC-V8
 // RUN: %clang_cc1 -triple thumbv8-linux-gnueabihf -target-cpu cortex-a72 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-BASIC-V8
-// CHECK-BASIC-V8: "target-features"="+crc,+crypto,+fp-armv8,+hwdiv,+hwdiv-arm,+neon"
+// CHECK-BASIC-V8: "target-features"="+crc,+crypto,+fp-armv8,+hwdiv,+hwdiv-arm,+neon,+t2dsp"
 
 
 // RUN: %clang_cc1 -triple thumbv7-linux-gnueabi -target-cpu cortex-r5 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP3-D16-DIV
-// CHECK-VFP3-D16-DIV: "target-features"="+d16,+hwdiv,+hwdiv-arm,+vfp3"
+// CHECK-VFP3-D16-DIV: "target-features"="+d16,+hwdiv,+hwdiv-arm,+t2dsp,+vfp3"
 
 
 // RUN: %clang_cc1 -triple armv7-linux-gnueabi -target-cpu cortex-r4f -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP3-D16-THUMB-DIV
-// CHECK-VFP3-D16-THUMB-DIV: "target-features"="+d16,+hwdiv,+vfp3"
+// CHECK-VFP3-D16-THUMB-DIV: "target-features"="+d16,+hwdiv,+t2dsp,+vfp3"
 
 
 // RUN: %clang_cc1 -triple thumbv7-linux-gnueabi -target-cpu cortex-r7 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP3-D16-FP16-DIV
-// CHECK-VFP3-D16-FP16-DIV: "target-features"="+d16,+fp16,+hwdiv,+hwdiv-arm,+vfp3"
+// CHECK-VFP3-D16-FP16-DIV: "target-features"="+d16,+fp16,+hwdiv,+hwdiv-arm,+t2dsp,+vfp3"
 
 
 // RUN: %clang_cc1 -triple thumbv7-linux-gnueabi -target-cpu cortex-m4 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP4-D16-SP-THUMB-DIV
-// CHECK-VFP4-D16-SP-THUMB-DIV: "target-features"="+d16,+fp-only-sp,+hwdiv,+vfp4"
+// CHECK-VFP4-D16-SP-THUMB-DIV: "target-features"="+d16,+fp-only-sp,+hwdiv,+t2dsp,+vfp4"
 
 
 // RUN: %clang_cc1 -triple thumbv7-linux-gnueabi -target-cpu cortex-m7 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-VFP5-D16-THUMB-DIV
-// CHECK-VFP5-D16-THUMB-DIV: "target-features"="+d16,+fp-armv8,+hwdiv"
+// CHECK-VFP5-D16-THUMB-DIV: "target-features"="+d16,+fp-armv8,+hwdiv,+t2dsp"
 
 
 // RUN: %clang_cc1 -triple armv7-linux-gnueabi -target-cpu cortex-r4 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-THUMB-DIV
-// RUN: %clang_cc1 -triple thumbv7-linux-gnueabi -target-cpu cortex-m3 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-THUMB-DIV
-// CHECK-THUMB-DIV: "target-features"="+hwdiv"
+// CHECK-THUMB-DIV: "target-features"="+hwdiv,+t2dsp"
+
+// RUN: %clang_cc1 -triple thumbv7-linux-gnueabi -target-cpu cortex-m3 -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK-THUMB-DIV-M3
+// CHECK-THUMB-DIV-M3: "target-features"="+hwdiv"
 
 
 void foo() {}