maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

[ARM] Add __ARM_FEATURE_DOTPROD pre-defined macro 

This adds a pre-defined macro to test if the compiler has support for the
v8.2-A dot rpoduct intrinsics in AArch32 mode.

The AAcrh64 equivalent has already been added by rL330229.

The ACLE spec which describes this macro hasn't been published yet, but this is
based on the final internal draft, and GCC has already implemented this.

Differential revision: https://reviews.llvm.org/D46108

llvm-svn: 331038
This commit is contained in:
Oliver Stannard 2018-04-27 13:56:02 +00:00
parent f3fea0f11f
commit 39ee9de64c
3 changed files with 12 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
clang/lib/Basic/Targets/ARM.cpp
View File

@ -390,6 +390,7 @@ bool ARMTargetInfo::handleTargetFeatures(std::vector<std::string> &Features,
Unaligned = 1;
SoftFloat = SoftFloatABI = false;
HWDiv = 0;
DotProd = 0;
// This does not diagnose illegal cases like having both
// "+vfpv2" and "+vfpv3" or having "+neon" and "+fp-only-sp".
@ -432,6 +433,8 @@ bool ARMTargetInfo::handleTargetFeatures(std::vector<std::string> &Features,
HW_FP |= HW_FP_HP;
} else if (Feature == "+fullfp16") {
HasLegalHalfType = true;
} else if (Feature == "+dotprod") {
DotProd = true;
}
}
HW_FP &= ~HW_FP_remove;
@ -731,6 +734,9 @@ void ARMTargetInfo::getTargetDefines(const LangOptions &Opts,
if (HasLegalHalfType)
Builder.defineMacro("__ARM_FEATURE_FP16_SCALAR_ARITHMETIC", "1");
// Armv8.2-A dot product intrinsics
if (DotProd)
Builder.defineMacro("__ARM_FEATURE_DOTPROD", "1");
switch (ArchKind) {
default:

1
clang/lib/Basic/Targets/ARM.h
View File

@ -69,6 +69,7 @@ class LLVM_LIBRARY_VISIBILITY ARMTargetInfo : public TargetInfo {
unsigned Crypto : 1;
unsigned DSP : 1;
unsigned Unaligned : 1;
unsigned DotProd : 1;
enum {
LDREX_B = (1 << 0), /// byte (8-bit)

5
clang/test/Preprocessor/arm-target-features.c
View File

@ -6,6 +6,7 @@
// CHECK-V8A: #define __ARM_FEATURE_DIRECTED_ROUNDING 1
// CHECK-V8A: #define __ARM_FEATURE_NUMERIC_MAXMIN 1
// CHECK-V8A-NOT: #define __ARM_FP 0x
// CHECK-V8A-NOT: #define __ARM_FEATURE_DOTPROD
// RUN: %clang -target armv8a-none-linux-gnueabi -x c -E -dM %s -o - | FileCheck -match-full-lines --check-prefix=CHECK-V8A-ALLOW-FP-INSTR %s
// RUN: %clang -target armv8a-none-linux-gnueabihf -x c -E -dM %s -o - | FileCheck -match-full-lines --check-prefix=CHECK-V8A-ALLOW-FP-INSTR %s
@ -18,6 +19,7 @@
// CHECK-V8A-ALLOW-FP-INSTR: #define __ARM_FP 0xe
// CHECK-V8A-ALLOW-FP-INSTR: #define __ARM_FP16_ARGS 1
// CHECK-V8A-ALLOW-FP-INSTR: #define __ARM_FP16_FORMAT_IEEE 1
// CHECK-V8A-ALLOW-FP-INSTR-V8A-NOT: #define __ARM_FEATURE_DOTPROD
// RUN: %clang -target arm-none-linux-gnueabi -march=armv8.2a+fp16 -x c -E -dM %s -o - | FileCheck -match-full-lines --check-prefix=CHECK-FULLFP16-VECTOR-SCALAR %s
// CHECK-FULLFP16-VECTOR-SCALAR: #define __ARM_FEATURE_FP16_SCALAR_ARITHMETIC 1
@ -30,6 +32,9 @@
// CHECK-FULLFP16-SCALAR-NOT: #define __ARM_FEATURE_FP16_VECTOR_ARITHMETIC 1
// CHECK-FULLFP16-SCALAR: #define __ARM_FP 0xe
// CHECK-FULLFP16-SCALAR: #define __ARM_FP16_FORMAT_IEEE 1
//
// RUN: %clang -target arm-none-linux-gnueabi -march=armv8.2a+dotprod -x c -E -dM %s -o - | FileCheck -match-full-lines --check-prefix=CHECK-DOTPROD %s
// CHECK-DOTPROD: #define __ARM_FEATURE_DOTPROD 1
// RUN: %clang -target armv8r-none-linux-gnu -x c -E -dM %s -o - | FileCheck -match-full-lines --check-prefix=CHECK-V8R %s
// CHECK-V8R: #define __ARMEL__ 1