Set appropriate FPU default for Linux on v8

Change-Id: If9b649c92e7196e3e791948545dc80901a0761eb

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@193365 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index bb64a035e967e1b595bc62ea665d9df0701dd57f..2294688bdfe5464f2426225c17cb5686de87a286 100644 (file)
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -5986,6 +5986,8 @@ void gnutools::Assemble::ConstructJob(Compilation &C, const JobAction &JA,
     StringRef MArch = getToolChain().getArchName();
     if (MArch == "armv7" || MArch == "armv7a" || MArch == "armv7-a")
       CmdArgs.push_back("-mfpu=neon");
+    if (MArch == "armv8" || MArch == "armv8a" || MArch == "armv8-a")
+      CmdArgs.push_back("-mfpu=crypto-neon-fp-armv8");
 
     StringRef ARMFloatABI = getARMFloatABI(getToolChain().getDriver(), Args,
                                            getToolChain().getTriple());

diff --git a/test/Driver/linux-as.c b/test/Driver/linux-as.c
index d17f90ab10bd2fc7c70c085a642f786f3762ba34..a449b7b6538058fa11050925dbcb3c24c86b2206 100644 (file)
--- a/test/Driver/linux-as.c
+++ b/test/Driver/linux-as.c
@@ -30,6 +30,11 @@
 // RUN:   | FileCheck -check-prefix=CHECK-ARM-TARGET %s
 // CHECK-ARM-TARGET: as{{(.exe)?}}" "-mfpu=neon" "-mfloat-abi=soft" "-mcpu=cortex-a8"
 //
+// RUN: %clang -target armv8-linux -mcpu=cortex-a53 -### \
+// RUN:   -no-integrated-as -c %s 2>&1 \
+// RUN:   | FileCheck -check-prefix=CHECK-ARM-TARGET-V8 %s
+// CHECK-ARM-TARGET-V8: as{{(.exe)?}}" "-mfpu=crypto-neon-fp-armv8" "-mfloat-abi=soft" "-mcpu=cortex-a53"
+//
 // RUN: %clang -target arm-linux -mfloat-abi=hard -### \
 // RUN:   -no-integrated-as -c %s 2>&1 \
 // RUN:   | FileCheck -check-prefix=CHECK-ARM-MFLOAT-ABI %s