Author: sjoerdmeijer
Date: Tue Mar 13 15:11:06 2018
New Revision: 327455
URL: http://llvm.org/viewvc/llvm-project?rev=327455&view=rev
Log:
[ARM] ACLE FP16 feature test macros
This is a partial recommit of r327189 that was reverted
due to test issues. I.e., this recommits minimal functional
change, the FP16 feature test macros, and adds tests that
were missing in the original commit.
Modified:
cfe/trunk/lib/Basic/Targets/ARM.cpp
cfe/trunk/lib/Basic/Targets/ARM.h
cfe/trunk/test/Preprocessor/arm-target-features.c
Modified: cfe/trunk/lib/Basic/Targets/ARM.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Basic/Targets/ARM.cpp?rev=327455&r1=327454&r2=327455&view=diff
==============================================================================
--- cfe/trunk/lib/Basic/Targets/ARM.cpp (original)
+++ cfe/trunk/lib/Basic/Targets/ARM.cpp Tue Mar 13 15:11:06 2018
@@ -379,6 +379,7 @@ bool ARMTargetInfo::handleTargetFeatures
Unaligned = 1;
SoftFloat = SoftFloatABI = false;
HWDiv = 0;
+ HasFullFP16 = 0;
// This does not diagnose illegal cases like having both
// "+vfpv2" and "+vfpv3" or having "+neon" and "+fp-only-sp".
@@ -419,6 +420,8 @@ bool ARMTargetInfo::handleTargetFeatures
Unaligned = 0;
} else if (Feature == "+fp16") {
HW_FP |= HW_FP_HP;
+ } else if (Feature == "+fullfp16") {
+ HasFullFP16 = 1;
}
}
HW_FP &= ~HW_FP_remove;
@@ -710,6 +713,15 @@ void ARMTargetInfo::getTargetDefines(con
if (Opts.UnsafeFPMath)
Builder.defineMacro("__ARM_FP_FAST", "1");
+ // Armv8.2-A FP16 vector intrinsic
+ if ((FPU & NeonFPU) && HasFullFP16)
+ Builder.defineMacro("__ARM_FEATURE_FP16_VECTOR_ARITHMETIC", "1");
+
+ // Armv8.2-A FP16 scalar intrinsics
+ if (HasFullFP16)
+ Builder.defineMacro("__ARM_FEATURE_FP16_SCALAR_ARITHMETIC", "1");
+
+
switch (ArchKind) {
default:
break;
Modified: cfe/trunk/lib/Basic/Targets/ARM.h
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Basic/Targets/ARM.h?rev=327455&r1=327454&r2=327455&view=diff
==============================================================================
--- cfe/trunk/lib/Basic/Targets/ARM.h (original)
+++ cfe/trunk/lib/Basic/Targets/ARM.h Tue Mar 13 15:11:06 2018
@@ -69,6 +69,7 @@ class LLVM_LIBRARY_VISIBILITY ARMTargetI
unsigned Crypto : 1;
unsigned DSP : 1;
unsigned Unaligned : 1;
+ unsigned HasFullFP16 : 1;
enum {
LDREX_B = (1 << 0), /// byte (8-bit)
Modified: cfe/trunk/test/Preprocessor/arm-target-features.c
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Preprocessor/arm-target-features.c?rev=327455&r1=327454&r2=327455&view=diff
==============================================================================
--- cfe/trunk/test/Preprocessor/arm-target-features.c (original)
+++ cfe/trunk/test/Preprocessor/arm-target-features.c Tue Mar 13 15:11:06 2018
@@ -19,6 +19,18 @@
// CHECK-V8A-ALLOW-FP-INSTR: #define __ARM_FP16_ARGS 1
// CHECK-V8A-ALLOW-FP-INSTR: #define __ARM_FP16_FORMAT_IEEE 1
+// 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
+// CHECK-FULLFP16-VECTOR-SCALAR: #define __ARM_FEATURE_FP16_VECTOR_ARITHMETIC 1
+// CHECK-FULLFP16-VECTOR-SCALAR: #define __ARM_FP 0xe
+// CHECK-FULLFP16-VECTOR-SCALAR: #define __ARM_FP16_FORMAT_IEEE 1
+
+// RUN: %clang -target arm-none-linux-gnueabi -march=armv8.2a+fp16 -mfpu=vfp4
-x c -E -dM %s -o - | FileCheck -match-full-lines
--check-prefix=CHECK-FULLFP16-SCALAR %s
+// CHECK-FULLFP16-SCALAR: #define __ARM_FEATURE_FP16_SCALAR_ARITHMETIC 1
+// 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 armv8r-none-linux-gnu -x c -E -dM %s -o - | FileCheck
-match-full-lines --check-prefix=CHECK-V8R %s
// CHECK-V8R: #define __ARMEL__ 1
// CHECK-V8R: #define __ARM_ARCH 8
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