[PATCH] D51093: [ARM] Set __ARM_FEATURE_SIMD32 for +dsp cores

[Sam Parker via Phabricator via cfe-commits]

samparker created this revision.
samparker added reviewers: erichkeane, t.p.northover, SjoerdMeijer.
Herald added a reviewer: javed.absar.
Herald added subscribers: chrib, kristof.beyls.

__ARM_FEATURE_DSP is already set for targets with the +dsp feature. In the backend, this target feature is also used to represent the availability of the of the instructions that the ACLE guard through the __ARM_FEATURE_SIMD32 macro. So set this macro for cores later than V6 and that the target parser, or user, reports that the 'dsp' instructions are supported.


https://reviews.llvm.org/D51093

Files:
  lib/Basic/Targets/ARM.cpp
  test/Preprocessor/arm-acle-6.4.c


Index: test/Preprocessor/arm-acle-6.4.c
===================================================================
--- test/Preprocessor/arm-acle-6.4.c
+++ test/Preprocessor/arm-acle-6.4.c
@@ -174,10 +174,13 @@
 // CHECK-V7M:     __ARM_FEATURE_SAT 1
 // CHECK-V7M:     __ARM_FEATURE_UNALIGNED 1
 
-// RUN: %clang -target arm-none-linux-eabi -march=armv7e-m -x c -E -dM %s -o - | FileCheck %s -check-prefix CHECK-V7EM
+// RUN: %clang -target arm-none-linux-eabi -march=armv7e-m -x c -E -dM %s -o - | FileCheck %s -check-prefix CHECK-M-DSP
+// RUN: %clang --target=arm-arm-none-eabi -mcpu=cortex-m4 -x c -E -dM %s -o - | FileCheck %s -check-prefix CHECK-M-DSP
+// RUN: %clang --target=arm-arm-none-eabi -mcpu=cortex-m7 -x c -E -dM %s -o - | FileCheck %s -check-prefix CHECK-M-DSP
+// RUN: %clang --target=arm-arm-none-eabi -mcpu=cortex-m33 -x c -E -dM %s -o - | FileCheck %s -check-prefix CHECK-M-DSP
 
-// CHECK-V7EM: __ARM_FEATURE_DSP 1
-// CHECK-V7EM: __ARM_FEATURE_SIMD32 1
+// CHECK-M-DSP: __ARM_FEATURE_DSP 1
+// CHECK-M-DSP: __ARM_FEATURE_SIMD32 1
 
 // RUN: %clang -target arm-none-linux-eabi -march=armv8-a -x c -E -dM %s -o - | FileCheck %s -check-prefix CHECK-V8A
 
Index: lib/Basic/Targets/ARM.cpp
===================================================================
--- lib/Basic/Targets/ARM.cpp
+++ lib/Basic/Targets/ARM.cpp
@@ -661,7 +661,7 @@
   }
 
   // ACLE 6.4.9 32-bit SIMD instructions
-  if (ArchVersion >= 6 && (CPUProfile != "M" || CPUAttr == "7EM"))
+  if ((ArchVersion >= 6 && DSP))
     Builder.defineMacro("__ARM_FEATURE_SIMD32", "1");
 
   // ACLE 6.4.10 Hardware Integer Divide


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