Recommit r351160 "[X86] Make _xgetbv/_xsetbv on non-windows platforms"

V8 has been fixed now.

llvm-svn: 351391

9 files changed, 160 insertions, 16 deletions

diff --git a/clang/include/clang/Basic/BuiltinsX86.def b/clang/include/clang/Basic/BuiltinsX86.def
index b3564b957e99..38be45700120 100644
--- a/clang/include/clang/Basic/BuiltinsX86.def
+++ b/clang/include/clang/Basic/BuiltinsX86.def
@@ -693,6 +693,10 @@ TARGET_BUILTIN(__builtin_ia32_fxsave, "vv*", "n", "fxsr")
 // XSAVE
 TARGET_BUILTIN(__builtin_ia32_xsave, "vv*ULLi", "n", "xsave")
 TARGET_BUILTIN(__builtin_ia32_xrstor, "vv*ULLi", "n", "xsave")
+TARGET_BUILTIN(__builtin_ia32_xgetbv, "ULLiUi", "n", "xsave")
+TARGET_HEADER_BUILTIN(_xgetbv, "UWiUi", "nh", "immintrin.h", ALL_MS_LANGUAGES, "")
+TARGET_BUILTIN(__builtin_ia32_xsetbv, "vUiULLi", "n", "xsave")
+TARGET_HEADER_BUILTIN(_xsetbv, "vUiUWi", "nh", "immintrin.h", ALL_MS_LANGUAGES, "")
 TARGET_BUILTIN(__builtin_ia32_xsaveopt, "vv*ULLi", "n", "xsaveopt")
 TARGET_BUILTIN(__builtin_ia32_xrstors, "vv*ULLi", "n", "xsaves")
 TARGET_BUILTIN(__builtin_ia32_xsavec, "vv*ULLi", "n", "xsavec")
diff --git a/clang/lib/CodeGen/CGBuiltin.cpp b/clang/lib/CodeGen/CGBuiltin.cpp
index d6752b2412ae..02807bac5f4c 100644
--- a/clang/lib/CodeGen/CGBuiltin.cpp
+++ b/clang/lib/CodeGen/CGBuiltin.cpp
@@ -9833,7 +9833,9 @@ Value *CodeGenFunction::EmitX86BuiltinExpr(unsigned BuiltinID,
   case X86::BI__builtin_ia32_xsavec:
   case X86::BI__builtin_ia32_xsavec64:
   case X86::BI__builtin_ia32_xsaves:
-  case X86::BI__builtin_ia32_xsaves64: {
+  case X86::BI__builtin_ia32_xsaves64:
+  case X86::BI__builtin_ia32_xsetbv:
+  case X86::BI_xsetbv: {
     Intrinsic::ID ID;
 #define INTRINSIC_X86_XSAVE_ID(NAME) \
     case X86::BI__builtin_ia32_##NAME: \
@@ -9853,6 +9855,10 @@ Value *CodeGenFunction::EmitX86BuiltinExpr(unsigned BuiltinID,
     INTRINSIC_X86_XSAVE_ID(xsavec64);
     INTRINSIC_X86_XSAVE_ID(xsaves);
     INTRINSIC_X86_XSAVE_ID(xsaves64);
+    INTRINSIC_X86_XSAVE_ID(xsetbv);
+    case X86::BI_xsetbv:
+      ID = Intrinsic::x86_xsetbv;
+      break;
     }
 #undef INTRINSIC_X86_XSAVE_ID
     Value *Mhi = Builder.CreateTrunc(
@@ -9862,6 +9868,9 @@ Value *CodeGenFunction::EmitX86BuiltinExpr(unsigned BuiltinID,
     Ops.push_back(Mlo);
     return Builder.CreateCall(CGM.getIntrinsic(ID), Ops);
   }
+  case X86::BI__builtin_ia32_xgetbv:
+  case X86::BI_xgetbv:
+    return Builder.CreateCall(CGM.getIntrinsic(Intrinsic::x86_xgetbv), Ops);
   case X86::BI__builtin_ia32_storedqudi128_mask:
   case X86::BI__builtin_ia32_storedqusi128_mask:
   case X86::BI__builtin_ia32_storedquhi128_mask:
diff --git a/clang/lib/Headers/immintrin.h b/clang/lib/Headers/immintrin.h
index 7d0722ec7652..19edd4ac4a49 100644
--- a/clang/lib/Headers/immintrin.h
+++ b/clang/lib/Headers/immintrin.h
@@ -378,9 +378,8 @@ _storebe_i64(void * __P, long long __D) {
 #include <fxsrintrin.h>
 #endif
 
-#if !defined(_MSC_VER) || __has_feature(modules) || defined(__XSAVE__)
+/* No feature check desired due to internal MSC_VER checks */
 #include <xsaveintrin.h>
-#endif
 
 #if !defined(_MSC_VER) || __has_feature(modules) || defined(__XSAVEOPT__)
 #include <xsaveoptintrin.h>
diff --git a/clang/lib/Headers/intrin.h b/clang/lib/Headers/intrin.h
index c86f41faeb88..acc08abaf034 100644
--- a/clang/lib/Headers/intrin.h
+++ b/clang/lib/Headers/intrin.h
@@ -200,10 +200,7 @@ __attribute__((__deprecated__("use other intrinsics or C++11 atomics instead")))
 _WriteBarrier(void);
 unsigned __int32 xbegin(void);
 void _xend(void);
-static __inline__
 #define _XCR_XFEATURE_ENABLED_MASK 0
-unsigned __int64 __cdecl _xgetbv(unsigned int);
-void __cdecl _xsetbv(unsigned int, unsigned __int64);
 
 /* These additional intrinsics are turned on in x64/amd64/x86_64 mode. */
 #ifdef __x86_64__
@@ -539,12 +536,6 @@ __cpuidex(int __info[4], int __level, int __ecx) {
   __asm__ ("cpuid" : "=a"(__info[0]), "=b" (__info[1]), "=c"(__info[2]), "=d"(__info[3])
                    : "a"(__level), "c"(__ecx));
 }
-static __inline__ unsigned __int64 __cdecl __DEFAULT_FN_ATTRS
-_xgetbv(unsigned int __xcr_no) {
-  unsigned int __eax, __edx;
-  __asm__ ("xgetbv" : "=a" (__eax), "=d" (__edx) : "c" (__xcr_no));
-  return ((unsigned __int64)__edx << 32) | __eax;
-}
 static __inline__ void __DEFAULT_FN_ATTRS
 __halt(void) {
   __asm__ volatile ("hlt");
diff --git a/clang/lib/Headers/xsaveintrin.h b/clang/lib/Headers/xsaveintrin.h
index 16f3a78d3f5b..788f9e000b52 100644
--- a/clang/lib/Headers/xsaveintrin.h
+++ b/clang/lib/Headers/xsaveintrin.h
@@ -28,6 +28,10 @@
 #ifndef __XSAVEINTRIN_H
 #define __XSAVEINTRIN_H
 
+#ifndef _MSC_VER
+#define _XCR_XFEATURE_ENABLED_MASK 0
+#endif
+
 /* Define the default attributes for the functions in this file. */
 #define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__,  __target__("xsave")))
 
@@ -41,6 +45,20 @@ _xrstor(void *__p, unsigned long long __m) {
   __builtin_ia32_xrstor(__p, __m);
 }
 
+#ifndef _MSC_VER
+#define _xgetbv(A) __builtin_ia32_xgetbv((long long)(A))
+#define _xsetbv(A, B) __builtin_ia32_xsetbv((unsigned int)(A), (unsigned long long)(B));
+#else
+#ifdef __cplusplus
+extern "C" {
+#endif
+unsigned __int64 __cdecl _xgetbv(unsigned int);
+void __cdecl _xsetbv(unsigned int, unsigned __int64);
+#ifdef __cplusplus
+}
+#endif
+#endif /* _MSC_VER */
+
 #ifdef __x86_64__
 static __inline__ void __DEFAULT_FN_ATTRS
 _xsave64(void *__p, unsigned long long __m) {
@@ -51,6 +69,7 @@ static __inline__ void __DEFAULT_FN_ATTRS
 _xrstor64(void *__p, unsigned long long __m) {
   __builtin_ia32_xrstor64(__p, __m);
 }
+
 #endif
 
 #undef __DEFAULT_FN_ATTRS
diff --git a/clang/test/CodeGen/builtins-x86.c b/clang/test/CodeGen/builtins-x86.c
index fd99dd2be31f..e237bc2d12b8 100644
--- a/clang/test/CodeGen/builtins-x86.c
+++ b/clang/test/CodeGen/builtins-x86.c
@@ -281,6 +281,8 @@ void f0() {
 
   (void)__builtin_ia32_xsave(tmp_vp, tmp_ULLi);
   (void)__builtin_ia32_xsave64(tmp_vp, tmp_ULLi);
+  tmp_ULLi = __builtin_ia32_xgetbv(tmp_Ui);
+  (void)__builtin_ia32_xsetbv(tmp_Ui, tmp_ULLi);
   (void)__builtin_ia32_xrstor(tmp_vp, tmp_ULLi);
   (void)__builtin_ia32_xrstor64(tmp_vp, tmp_ULLi);
   (void)__builtin_ia32_xsaveopt(tmp_vp, tmp_ULLi);
diff --git a/clang/test/CodeGen/x86_32-xsave.c b/clang/test/CodeGen/x86_32-xsave.c
index f5d84e2d920a..e1acdff12407 100644
--- a/clang/test/CodeGen/x86_32-xsave.c
+++ b/clang/test/CodeGen/x86_32-xsave.c
@@ -1,6 +1,9 @@
 // RUN: %clang_cc1 %s -DTEST_XSAVE -O0 -triple=i686-unknown-unknown -target-feature +xsave -emit-llvm -o - -Wall -Werror | FileCheck %s --check-prefix=XSAVE
 // RUN: %clang_cc1 %s -DTEST_XSAVE -O0 -triple=i686-unknown-unknown -target-feature +xsave -fno-signed-char -emit-llvm -o - -Wall -Werror | FileCheck %s --check-prefix=XSAVE
 
+// RUN: %clang_cc1 %s -DTEST_XGETBV -O0 -triple=i686-unknown-unknown -target-feature +xsave -emit-llvm -o - -Wall -Werror | FileCheck %s --check-prefix=XGETBV
+// RUN: %clang_cc1 %s -DTEST_XSETBV -O0 -triple=i686-unknown-unknown -target-feature +xsave -emit-llvm -o - -Wall -Werror | FileCheck %s --check-prefix=XSETBV
+
 // RUN: %clang_cc1 %s -DTEST_XSAVEOPT -O0 -triple=i686-unknown-unknown -target-feature +xsave -target-feature +xsaveopt -emit-llvm -o - -Wall -Werror | FileCheck %s --check-prefix=XSAVEOPT
 // RUN: %clang_cc1 %s -DTEST_XSAVEOPT -O0 -triple=i686-unknown-unknown -target-feature +xsave -target-feature +xsaveopt -fno-signed-char -emit-llvm -o - -Wall -Werror | FileCheck %s --check-prefix=XSAVEOPT
 
@@ -10,9 +13,15 @@
 // RUN: %clang_cc1 %s -DTEST_XSAVES -O0 -triple=i686-unknown-unknown -target-feature +xsave -target-feature +xsaves -emit-llvm -o - -Wall -Werror | FileCheck %s --check-prefix=XSAVES
 // RUN: %clang_cc1 %s -DTEST_XSAVES -O0 -triple=i686-unknown-unknown -target-feature +xsave -target-feature +xsaves -fno-signed-char -emit-llvm -o - -Wall -Werror | FileCheck %s --check-prefix=XSAVES
 
+// Don't include mm_malloc.h, it's system specific.
+#define __MM_MALLOC_H
+#include <x86intrin.h>
+
 void test() {
-  unsigned long long tmp_ULLi = 0;
-  void*              tmp_vp = 0;
+  unsigned long long tmp_ULLi;
+  unsigned int       tmp_Ui;
+  void*              tmp_vp;
+  tmp_ULLi = 0; tmp_Ui = 0; tmp_vp = 0;
 
 #ifdef TEST_XSAVE
 // XSAVE: [[tmp_vp_1:%[0-9a-zA-Z]+]] = load i8*, i8** %tmp_vp, align 4
@@ -30,6 +39,12 @@ void test() {
 // XSAVE: [[low32_3:%[0-9a-zA-Z]+]] = trunc i64 [[tmp_ULLi_3]] to i32
 // XSAVE: call void @llvm.x86.xrstor(i8* [[tmp_vp_3]], i32 [[high32_3]], i32 [[low32_3]])
   (void)__builtin_ia32_xrstor(tmp_vp, tmp_ULLi);
+  
+// XSAVE: call void @llvm.x86.xsave
+  (void)_xsave(tmp_vp, tmp_ULLi);
+  
+// XSAVE: call void @llvm.x86.xrstor
+  (void)_xrstor(tmp_vp, tmp_ULLi);
 #endif
 
 #ifdef TEST_XSAVEOPT
@@ -40,6 +55,9 @@ void test() {
 // XSAVEOPT: [[low32_1:%[0-9a-zA-Z]+]] = trunc i64 [[tmp_ULLi_1]] to i32
 // XSAVEOPT: call void @llvm.x86.xsaveopt(i8* [[tmp_vp_1]], i32 [[high32_1]], i32 [[low32_1]])
   (void)__builtin_ia32_xsaveopt(tmp_vp, tmp_ULLi);
+  
+// XSAVEOPT: call void @llvm.x86.xsaveopt
+  (void)_xsaveopt(tmp_vp, tmp_ULLi);
 #endif
 
 #ifdef TEST_XSAVEC
@@ -50,6 +68,9 @@ void test() {
 // XSAVEC: [[low32_1:%[0-9a-zA-Z]+]] = trunc i64 [[tmp_ULLi_1]] to i32
 // XSAVEC: call void @llvm.x86.xsavec(i8* [[tmp_vp_1]], i32 [[high32_1]], i32 [[low32_1]])
   (void)__builtin_ia32_xsavec(tmp_vp, tmp_ULLi);
+ 
+// XSAVEC: call void @llvm.x86.xsavec 
+  (void)_xsavec(tmp_vp, tmp_ULLi);
 #endif
 
 #ifdef TEST_XSAVES
@@ -68,5 +89,34 @@ void test() {
 // XSAVES: [[low32_3:%[0-9a-zA-Z]+]] = trunc i64 [[tmp_ULLi_3]] to i32
 // XSAVES: call void @llvm.x86.xrstors(i8* [[tmp_vp_3]], i32 [[high32_3]], i32 [[low32_3]])
   (void)__builtin_ia32_xrstors(tmp_vp, tmp_ULLi);
+  
+// XSAVES: call void @llvm.x86.xsaves
+  (void)_xsaves(tmp_vp, tmp_ULLi); 
+
+// XSAVES: call void @llvm.x86.xrstors
+  (void)_xrstors(tmp_vp, tmp_ULLi);
+#endif
+
+#ifdef TEST_XGETBV
+// XGETBV: [[tmp_Ui:%[0-9a-zA-z]+]] = load i32, i32* %tmp_Ui, align 4
+// XGETBV: call i64 @llvm.x86.xgetbv(i32 [[tmp_Ui]])
+  tmp_ULLi = __builtin_ia32_xgetbv(tmp_Ui);
+  
+// XGETBV: call i64 @llvm.x86.xgetbv
+  tmp_ULLi = _xgetbv(tmp_Ui);
+#endif
+
+#ifdef TEST_XSETBV
+// XSETBV: [[tmp_Ui:%[0-9a-zA-z]+]] = load i32, i32* %tmp_Ui, align 4
+// XSETBV: [[tmp_ULLi_3:%[0-9a-zA-z]+]] = load i64, i64* %tmp_ULLi, align 8
+// XSETBV: [[high64_3:%[0-9a-zA-z]+]] = lshr i64 [[tmp_ULLi_3]], 32
+// XSETBV: [[high32_3:%[0-9a-zA-z]+]] = trunc i64 [[high64_3]] to i32
+// XSETBV: [[low32_3:%[0-9a-zA-z]+]] = trunc i64 [[tmp_ULLi_3]] to i32
+// XSETBV: call void @llvm.x86.xsetbv(i32 [[tmp_Ui]], i32 [[high32_3]], i32 [[low32_3]])
+  (void)__builtin_ia32_xsetbv(tmp_Ui, tmp_ULLi);
+  
+  // XSETBV: call void @llvm.x86.xsetbv
+  (void)_xsetbv(tmp_Ui, tmp_ULLi);
 #endif
+
 }
diff --git a/clang/test/CodeGen/x86_64-xsave.c b/clang/test/CodeGen/x86_64-xsave.c
index beb775c0e47f..cfc33cb06721 100644
--- a/clang/test/CodeGen/x86_64-xsave.c
+++ b/clang/test/CodeGen/x86_64-xsave.c
@@ -1,6 +1,9 @@
 // RUN: %clang_cc1 %s -DTEST_XSAVE -O0 -triple=x86_64-unknown-unknown -target-feature +xsave -emit-llvm -o - -Wall -Werror | FileCheck %s --check-prefix=XSAVE
 // RUN: %clang_cc1 %s -DTEST_XSAVE -O0 -triple=x86_64-unknown-unknown -target-feature +xsave -fno-signed-char -emit-llvm -o - -Wall -Werror | FileCheck %s --check-prefix=XSAVE
 
+// RUN: %clang_cc1 %s -DTEST_XGETBV -O0 -triple=x86_64-unknown-unknown -target-feature +xsave -emit-llvm -o - -Wall -Werror | FileCheck %s --check-prefix=XGETBV
+// RUN: %clang_cc1 %s -DTEST_XSETBV -O0 -triple=x86_64-unknown-unknown -target-feature +xsave -fno-signed-char -emit-llvm -o - -Wall -Werror | FileCheck %s --check-prefix=XSETBV
+
 // RUN: %clang_cc1 %s -DTEST_XSAVEOPT -O0 -triple=x86_64-unknown-unknown -target-feature +xsave -target-feature +xsaveopt -emit-llvm -o - -Wall -Werror | FileCheck %s --check-prefix=XSAVEOPT
 // RUN: %clang_cc1 %s -DTEST_XSAVEOPT -O0 -triple=x86_64-unknown-unknown -target-feature +xsave -target-feature +xsaveopt -fno-signed-char -emit-llvm -o - -Wall -Werror | FileCheck %s --check-prefix=XSAVEOPT
 
@@ -10,9 +13,16 @@
 // RUN: %clang_cc1 %s -DTEST_XSAVES -O0 -triple=x86_64-unknown-unknown -target-feature +xsave -target-feature +xsaves -emit-llvm -o - -Wall -Werror | FileCheck %s --check-prefix=XSAVES
 // RUN: %clang_cc1 %s -DTEST_XSAVES -O0 -triple=x86_64-unknown-unknown -target-feature +xsave -target-feature +xsaves -fno-signed-char -emit-llvm -o - -Wall -Werror | FileCheck %s --check-prefix=XSAVES
 
+// Don't include mm_malloc.h, it's system specific.
+#define __MM_MALLOC_H
+#include <x86intrin.h>
+
+
 void test() {
-  unsigned long long tmp_ULLi = 0;
-  void*              tmp_vp = 0;
+  unsigned long long tmp_ULLi;
+  unsigned int       tmp_Ui;
+  void*              tmp_vp;
+  tmp_ULLi = 0; tmp_Ui = 0; tmp_vp = 0;
 
 #ifdef TEST_XSAVE
 // XSAVE: [[tmp_vp_1:%[0-9a-zA-Z]+]] = load i8*, i8** %tmp_vp, align 8
@@ -46,6 +56,18 @@ void test() {
 // XSAVE: [[low32_4:%[0-9a-zA-Z]+]] = trunc i64 [[tmp_ULLi_4]] to i32
 // XSAVE: call void @llvm.x86.xrstor64(i8* [[tmp_vp_4]], i32 [[high32_4]], i32 [[low32_4]])
   (void)__builtin_ia32_xrstor64(tmp_vp, tmp_ULLi);
+  
+// XSAVE: call void @llvm.x86.xsave
+  (void)_xsave(tmp_vp, tmp_ULLi);
+  
+// XSAVE: call void @llvm.x86.xsave64
+  (void)_xsave64(tmp_vp, tmp_ULLi);
+  
+// XSAVE: call void @llvm.x86.xrstor
+  (void)_xrstor(tmp_vp, tmp_ULLi);
+  
+// XSAVE: call void @llvm.x86.xrstor64
+  (void)_xrstor64(tmp_vp, tmp_ULLi);
 #endif
 
 #ifdef TEST_XSAVEOPT
@@ -64,6 +86,12 @@ void test() {
 // XSAVEOPT: [[low32_2:%[0-9a-zA-Z]+]] = trunc i64 [[tmp_ULLi_2]] to i32
 // XSAVEOPT: call void @llvm.x86.xsaveopt64(i8* [[tmp_vp_2]], i32 [[high32_2]], i32 [[low32_2]])
   (void)__builtin_ia32_xsaveopt64(tmp_vp, tmp_ULLi);
+  
+// XSAVEOPT: call void @llvm.x86.xsaveopt
+  (void)_xsaveopt(tmp_vp, tmp_ULLi);
+  
+// XSAVEOPT: call void @llvm.x86.xsaveopt64
+  (void)_xsaveopt64(tmp_vp, tmp_ULLi);
 #endif
 
 #ifdef TEST_XSAVEC
@@ -82,6 +110,12 @@ void test() {
 // XSAVEC: [[low32_2:%[0-9a-zA-Z]+]] = trunc i64 [[tmp_ULLi_2]] to i32
 // XSAVEC: call void @llvm.x86.xsavec64(i8* [[tmp_vp_2]], i32 [[high32_2]], i32 [[low32_2]])
   (void)__builtin_ia32_xsavec64(tmp_vp, tmp_ULLi);
+  
+// XSAVEC: call void @llvm.x86.xsavec 
+  (void)_xsavec(tmp_vp, tmp_ULLi);
+  
+// XSAVEC: call void @llvm.x86.xsavec64
+  (void)_xsavec64(tmp_vp, tmp_ULLi);
 #endif
 
 #ifdef TEST_XSAVES
@@ -116,5 +150,39 @@ void test() {
 // XSAVES: [[low32_4:%[0-9a-zA-Z]+]] = trunc i64 [[tmp_ULLi_4]] to i32
 // XSAVES: call void @llvm.x86.xrstors64(i8* [[tmp_vp_4]], i32 [[high32_4]], i32 [[low32_4]])
   (void)__builtin_ia32_xrstors64(tmp_vp, tmp_ULLi);
+  
+// XSAVES: call void @llvm.x86.xsaves
+  (void)_xsaves(tmp_vp, tmp_ULLi); 
+  
+// XSAVES: call void @llvm.x86.xsaves64
+  (void)_xsaves64(tmp_vp, tmp_ULLi); 
+
+// XSAVES: call void @llvm.x86.xrstors
+  (void)_xrstors(tmp_vp, tmp_ULLi);
+  
+// XSAVES: call void @llvm.x86.xrstors64
+  (void)_xrstors64(tmp_vp, tmp_ULLi);
+#endif
+
+#ifdef TEST_XGETBV
+// XGETBV: [[tmp_Ui:%[0-9a-zA-z]+]] = load i32, i32* %tmp_Ui, align 4
+// XGETBV: call i64 @llvm.x86.xgetbv(i32 [[tmp_Ui]])
+  tmp_ULLi = __builtin_ia32_xgetbv(tmp_Ui);
+  
+// XGETBV: call i64 @llvm.x86.xgetbv
+  tmp_ULLi = _xgetbv(tmp_Ui);
+#endif
+
+#ifdef TEST_XSETBV
+// XSETBV: [[tmp_Ui:%[0-9a-zA-z]+]] = load i32, i32* %tmp_Ui, align 4
+// XSETBV: [[tmp_ULLi_3:%[0-9a-zA-z]+]] = load i64, i64* %tmp_ULLi, align 8
+// XSETBV: [[high64_3:%[0-9a-zA-z]+]] = lshr i64 [[tmp_ULLi_3]], 32
+// XSETBV: [[high32_3:%[0-9a-zA-z]+]] = trunc i64 [[high64_3]] to i32
+// XSETBV: [[low32_3:%[0-9a-zA-z]+]] = trunc i64 [[tmp_ULLi_3]] to i32
+// XSETBV: call void @llvm.x86.xsetbv(i32 [[tmp_Ui]], i32 [[high32_3]], i32 [[low32_3]])
+  (void)__builtin_ia32_xsetbv(tmp_Ui, tmp_ULLi);
+  
+  // XSETBV: call void @llvm.x86.xsetbv
+  (void)_xsetbv(tmp_Ui, tmp_ULLi);
 #endif
 }
diff --git a/clang/test/Headers/ms-intrin.cpp b/clang/test/Headers/ms-intrin.cpp
index b0fef9cc06a7..18bb79820378 100644
--- a/clang/test/Headers/ms-intrin.cpp
+++ b/clang/test/Headers/ms-intrin.cpp
@@ -49,7 +49,9 @@ void f() {
   int info[4];
   __cpuid(info, 0);
   __cpuidex(info, 0, 0);
+#if defined(_M_X64) || defined(_M_IX86)
   _xgetbv(0);
+#endif
   __halt();
   __nop();
   __readmsr(0);