Disable NEON generation on armhf (Closes: #841474, #842142)

Thanks to Pauli for the fix

debian/changelog

@@ -1,3 +1,10 @@
+llvm-toolchain-3.9 (1:3.9-7) UNRELEASED; urgency=medium
+
+  * Disable NEON generation on armhf (Closes: #841474, #842142)
+    Thanks to Pauli for the fix
+
+ -- Sylvestre Ledru <sylvestre@debian.org>  Sun, 13 Nov 2016 13:40:59 +0100
+
 llvm-toolchain-3.9 (1:3.9-6) unstable; urgency=medium
 
   * Fix segfaults in the memory sanitizers (Closes: #842642)

debian/patches/clang-arm-default-vfp3-on-armv7a.patch

@@ -0,0 +1,13 @@
+Index: llvm-toolchain-3.9-3.9/include/llvm/Support/ARMTargetParser.def
+===================================================================
+--- llvm-toolchain-3.9-3.9.orig/include/llvm/Support/ARMTargetParser.def
++++ llvm-toolchain-3.9-3.9/include/llvm/Support/ARMTargetParser.def
+@@ -75,7 +75,7 @@ ARM_ARCH("armv6kz", AK_ARMV6KZ, "6KZ", "
+ ARM_ARCH("armv6-m", AK_ARMV6M, "6-M", "v6m", ARMBuildAttrs::CPUArch::v6_M,
+           FK_NONE, ARM::AEK_NONE)
+ ARM_ARCH("armv7-a", AK_ARMV7A, "7-A", "v7", ARMBuildAttrs::CPUArch::v7,
+-          FK_NEON, ARM::AEK_DSP)
++          FK_VFPV3 /* Hard float */, ARM::AEK_DSP)
+ ARM_ARCH("armv7-r", AK_ARMV7R, "7-R", "v7r", ARMBuildAttrs::CPUArch::v7,
+           FK_NONE, (ARM::AEK_HWDIV | ARM::AEK_DSP))
+ ARM_ARCH("armv7-m", AK_ARMV7M, "7-M", "v7m", ARMBuildAttrs::CPUArch::v7,

debian/patches/series

@@ -44,3 +44,4 @@ lldb-addversion-suffix-to-llvm-server-exec.patch
 upstream-msan-prevent-initialization-failure.diff
 upstream-asan-msan-fix-reallocation-logic.diff
 lit-force-lang.diff
+clang-arm-default-vfp3-on-armv7a.patch