From 72c25e24e9b164401e4858751e7e396b94dfcbd6 Mon Sep 17 00:00:00 2001 From: Dimitry Andric Date: Sun, 25 May 2014 19:28:34 +0000 Subject: [PATCH] Add the clang patch for r266674. --- ...h-r266674-clang-r209489-fix-xmmintrin.diff | 49 +++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 contrib/llvm/patches/patch-r266674-clang-r209489-fix-xmmintrin.diff diff --git a/contrib/llvm/patches/patch-r266674-clang-r209489-fix-xmmintrin.diff b/contrib/llvm/patches/patch-r266674-clang-r209489-fix-xmmintrin.diff new file mode 100644 index 000000000000..78473aa26a1f --- /dev/null +++ b/contrib/llvm/patches/patch-r266674-clang-r209489-fix-xmmintrin.diff @@ -0,0 +1,49 @@ +Pull in r209489 from upstream clang trunk (by Akira Hatanaka): + + Fix a bug in xmmintrin.h. + + The last step of _mm_cvtps_pi16 should use _mm_packs_pi32, which is a function + that reads two __m64 values and packs four 32-bit values into four 16-bit + values. + + + +Pull in r209559 from upstream clang trunk (by Akira Hatanaka): + + Recommit r209532 with -ffreestanding. + + This is a test case for r209489. + +Introduced here: http://svnweb.freebsd.org/changeset/base/266674 + +Index: tools/clang/lib/Headers/xmmintrin.h +=================================================================== +--- tools/clang/lib/Headers/xmmintrin.h ++++ tools/clang/lib/Headers/xmmintrin.h +@@ -903,7 +903,7 @@ _mm_cvtps_pi16(__m128 __a) + __a = _mm_movehl_ps(__a, __a); + __c = _mm_cvtps_pi32(__a); + +- return _mm_packs_pi16(__b, __c); ++ return _mm_packs_pi32(__b, __c); + } + + static __inline__ __m64 __attribute__((__always_inline__, __nodebug__)) +Index: tools/clang/test/Headers/xmmintrin.c +=================================================================== +--- tools/clang/test/Headers/xmmintrin.c ++++ tools/clang/test/Headers/xmmintrin.c +@@ -0,0 +1,13 @@ ++// RUN: %clang_cc1 %s -ffreestanding -triple x86_64-apple-macosx10.9.0 -emit-llvm -o - | FileCheck %s ++ ++#include ++ ++// Make sure the last step of _mm_cvtps_pi16 converts <4 x i32> to <4 x i16> by ++// checking that clang emits PACKSSDW instead of PACKSSWB. ++ ++// CHECK: define i64 @test_mm_cvtps_pi16 ++// CHECK: call x86_mmx @llvm.x86.mmx.packssdw ++ ++__m64 test_mm_cvtps_pi16(__m128 a) { ++ return _mm_cvtps_pi16(a); ++}