Import Clang's r280672 into our devel/llvm39 port

This revision is what's needed to make Clang work for CloudABI on ARMv6.
By pulling in this change, the ARMv6 cross compiler set up by the
cloudabi-toolchain port seems functional.

In the process, I did have to replace some ${RMDIR}s by ${RM} -rf, as it
tried to delete nonexistent directories. Brooks, do you know what's up
with that?

Submitted by:	ed
Differential Revision:	https://reviews.freebsd.org/D8078

2 files changed, 43 insertions, 2 deletions

diff --git a/devel/llvm39/Makefile b/devel/llvm39/Makefile
index db3ced2b7dc4..9a8bca0b44fe 100644
--- a/devel/llvm39/Makefile
+++ b/devel/llvm39/Makefile
@@ -2,6 +2,7 @@
 
 PORTNAME=	llvm
 DISTVERSION=	3.9.0
+PORTREVISION=	1
 CATEGORIES=	devel lang
 MASTER_SITES=	http://llvm.org/${PRE_}releases/${LLVM_RELEASE}/${RCDIR}
 DISTNAME=	${PORTNAME}-${DISTVERSION}.src
@@ -51,6 +52,7 @@ PLIST_FILES=
 
 CLANG_DESC=	Build clang
 CLANG_EXTRA_PATCHES= \
+	${PATCHDIR}/clang-patch-svn-r280672 \
 	${PATCHDIR}/clang-patch-fformat_extensions.diff \
 	${PATCHDIR}/clang-patch-fopenmp.diff \
 	${PATCHDIR}/clang-patch-tools_clang_lib_Headers_CMakeLists.txt \
@@ -320,7 +322,7 @@ post-build-COMPILER_RT-on:
 	${MAKE_ENV} ${MAKE_CMD}
 
 post-install:
-	${RMDIR} ${STAGEDIR}${LLVM_PREFIX}/include/llvm/MC/MCAnalysis
+	${RM} -r ${STAGEDIR}${LLVM_PREFIX}/include/llvm/MC/MCAnalysis
 	${INSTALL_SCRIPT} ${WRKDIR}/llvm-wrapper.sh \
 	    ${STAGEDIR}${PREFIX}/bin/${FIRST_COMMAND}${LLVM_SUFFIX}
 .for command in ${COMMANDS:C/^/XXXX/1:NXXXX*}
@@ -350,7 +352,7 @@ post-install-DOCS-off:
 
 post-install-LLDB-on:
 	${RM} ${STAGEDIR}${LLVM_PREFIX}/lib/python*/site-packages/lib
-	${RMDIR} ${STAGEDIR}${LLVM_PREFIX}/include/lldb/Host/windows/getopt
+	${RM} -r ${STAGEDIR}${LLVM_PREFIX}/include/lldb/Host/windows/getopt
 
 post-install-CLANG-on:
 	${LN} -f ${STAGEDIR}${LLVM_PREFIX}/bin/clang \
diff --git a/devel/llvm39/files/clang-patch-svn-r280672 b/devel/llvm39/files/clang-patch-svn-r280672
new file mode 100644
index 000000000000..0c6df7b175f0
--- /dev/null
+++ b/devel/llvm39/files/clang-patch-svn-r280672
@@ -0,0 +1,39 @@
+------------------------------------------------------------------------
+r280672 | ed | 2016-09-05 18:38:34 +0000 (Mon, 05 Sep 2016) | 6 lines
+
+Add support for targeting armv6-unknown-cloudabi-eabihf.
+
+I'm in the progress of adding ARMv6 support to CloudABI. On the compiler
+side, everything seems to work properly with this tiny change applied.
+
+
+------------------------------------------------------------------------
+Index: test/Preprocessor/init.c
+===================================================================
+--- tools/clang/test/Preprocessor/init.c	(revision 280671)
++++ tools/clang/test/Preprocessor/init.c	(revision 280672)
+@@ -1975,6 +1975,11 @@
+ // ARMEABIHARDFP:#define __arm 1
+ // ARMEABIHARDFP:#define __arm__ 1
+ 
++// RUN: %clang_cc1 -E -dM -ffreestanding -triple=armv6-unknown-cloudabi-eabihf < /dev/null | FileCheck -match-full-lines -check-prefix ARMV6-CLOUDABI %s
++//
++// ARMV6-CLOUDABI:#define __CloudABI__ 1
++// ARMV6-CLOUDABI:#define __arm__ 1
++
+ // RUN: %clang_cc1 -E -dM -ffreestanding -triple=arm-netbsd-eabi < /dev/null | FileCheck -match-full-lines -check-prefix ARM-NETBSD %s
+ //
+ // ARM-NETBSD-NOT:#define _LP64
+Index: lib/Basic/Targets.cpp
+===================================================================
+--- tools/clang/lib/Basic/Targets.cpp	(revision 280671)
++++ tools/clang/lib/Basic/Targets.cpp	(revision 280672)
+@@ -8261,6 +8261,8 @@
+       return new DarwinARMTargetInfo(Triple, Opts);
+ 
+     switch (os) {
++    case llvm::Triple::CloudABI:
++      return new CloudABITargetInfo<ARMleTargetInfo>(Triple, Opts);
+     case llvm::Triple::Linux:
+       return new LinuxTargetInfo<ARMleTargetInfo>(Triple, Opts);
+     case llvm::Triple::FreeBSD: