[Openmp-commits] [openmp] 4fb0aaf - [OpenMP] Changes to enable MSVC ARM64 build of libomp
via Openmp-commits
openmp-commits at lists.llvm.org
Tue May 11 13:03:59 PDT 2021
Author: Christopher Pulido
Date: 2021-05-11T23:03:12+03:00
New Revision: 4fb0aaf03381473ec8af727edb4b5d59b64b0d60
URL: https://github.com/llvm/llvm-project/commit/4fb0aaf03381473ec8af727edb4b5d59b64b0d60
DIFF: https://github.com/llvm/llvm-project/commit/4fb0aaf03381473ec8af727edb4b5d59b64b0d60.diff
LOG: [OpenMP] Changes to enable MSVC ARM64 build of libomp
This is the first in a series of changes to the OpenMP runtime
that have been done internally by Microsoft. This patch makes
the necessary changes to enable libomp.dll to build with
the MSVC compiler targeting ARM64.
Differential Revision: https://reviews.llvm.org/D101173
Added:
Modified:
openmp/runtime/src/CMakeLists.txt
openmp/runtime/src/dllexports
openmp/runtime/src/kmp.h
openmp/runtime/src/kmp_atomic.cpp
openmp/runtime/src/kmp_os.h
openmp/runtime/src/kmp_platform.h
openmp/runtime/src/z_Windows_NT-586_util.cpp
Removed:
################################################################################
diff --git a/openmp/runtime/src/CMakeLists.txt b/openmp/runtime/src/CMakeLists.txt
index 822f9ca2b8251..f075c67778fc8 100644
--- a/openmp/runtime/src/CMakeLists.txt
+++ b/openmp/runtime/src/CMakeLists.txt
@@ -93,7 +93,9 @@ else()
# Windows specific files
libomp_append(LIBOMP_CXXFILES z_Windows_NT_util.cpp)
libomp_append(LIBOMP_CXXFILES z_Windows_NT-586_util.cpp)
- libomp_append(LIBOMP_ASMFILES z_Windows_NT-586_asm.asm) # Windows assembly file
+ if(${LIBOMP_ARCH} STREQUAL "i386" OR ${LIBOMP_ARCH} STREQUAL "x86_64")
+ libomp_append(LIBOMP_ASMFILES z_Windows_NT-586_asm.asm) # Windows assembly file
+ endif()
else()
# Unix specific files
libomp_append(LIBOMP_CXXFILES z_Linux_util.cpp)
diff --git a/openmp/runtime/src/dllexports b/openmp/runtime/src/dllexports
index c6be679494cec..473746887574f 100644
--- a/openmp/runtime/src/dllexports
+++ b/openmp/runtime/src/dllexports
@@ -792,7 +792,9 @@ kmp_set_disp_num_buffers 890
%endif
+ # These are specific to x86 and x64
%ifndef arch_64
+ %ifndef arch_aarch64
# ATOMIC extensions for OpenMP 3.1 spec (x86 and x64 only)
@@ -1196,6 +1198,7 @@ kmp_set_disp_num_buffers 890
__kmpc_atomic_float10_div_cpt_rev_fp
%endif
+ %endif # arch_aarch64
%endif # arch_64
%ifdef HAVE_QUAD
diff --git a/openmp/runtime/src/kmp.h b/openmp/runtime/src/kmp.h
index 470344aa817eb..327ebbeae1e9a 100644
--- a/openmp/runtime/src/kmp.h
+++ b/openmp/runtime/src/kmp.h
@@ -3457,7 +3457,7 @@ extern void __kmp_check_stack_overlap(kmp_info_t *thr);
extern void __kmp_expand_host_name(char *buffer, size_t size);
extern void __kmp_expand_file_name(char *result, size_t rlen, char *pattern);
-#if KMP_ARCH_X86 || KMP_ARCH_X86_64
+#if KMP_ARCH_X86 || KMP_ARCH_X86_64 || (KMP_OS_WINDOWS && KMP_ARCH_AARCH64)
extern void
__kmp_initialize_system_tick(void); /* Initialize timer tick value */
#endif
diff --git a/openmp/runtime/src/kmp_atomic.cpp b/openmp/runtime/src/kmp_atomic.cpp
index a71a1b33ae380..fcc06216a4fa5 100644
--- a/openmp/runtime/src/kmp_atomic.cpp
+++ b/openmp/runtime/src/kmp_atomic.cpp
@@ -832,6 +832,39 @@ static inline kmp_cmplx128_a16_t operator/(kmp_cmplx128_a16_t &lhs,
// end of the first part of the workaround for C78287
#endif // USE_CMPXCHG_FIX
+#if KMP_OS_WINDOWS && KMP_ARCH_AARCH64
+// Undo explicit type casts to get MSVC ARM64 to build. Uses
+// OP_CMPXCHG_WORKAROUND definition for OP_CMPXCHG
+#undef OP_CMPXCHG
+#define OP_CMPXCHG(TYPE, BITS, OP) \
+ { \
+ struct _sss { \
+ TYPE cmp; \
+ kmp_int##BITS *vvv; \
+ }; \
+ struct _sss old_value, new_value; \
+ old_value.vvv = (kmp_int##BITS *)&old_value.cmp; \
+ new_value.vvv = (kmp_int##BITS *)&new_value.cmp; \
+ *old_value.vvv = *(volatile kmp_int##BITS *)lhs; \
+ new_value.cmp = old_value.cmp OP rhs; \
+ while (!KMP_COMPARE_AND_STORE_ACQ##BITS( \
+ (kmp_int##BITS *)lhs, *VOLATILE_CAST(kmp_int##BITS *) old_value.vvv, \
+ *VOLATILE_CAST(kmp_int##BITS *) new_value.vvv)) { \
+ KMP_DO_PAUSE; \
+ \
+ *old_value.vvv = *(volatile kmp_int##BITS *)lhs; \
+ new_value.cmp = old_value.cmp OP rhs; \
+ } \
+ }
+
+#undef OP_UPDATE_CRITICAL
+#define OP_UPDATE_CRITICAL(TYPE, OP, LCK_ID) \
+ __kmp_acquire_atomic_lock(&ATOMIC_LOCK##LCK_ID, gtid); \
+ (*lhs) = (*lhs)OP rhs; \
+ __kmp_release_atomic_lock(&ATOMIC_LOCK##LCK_ID, gtid);
+
+#endif // KMP_OS_WINDOWS && KMP_ARCH_AARCH64
+
#if KMP_ARCH_X86 || KMP_ARCH_X86_64
// ------------------------------------------------------------------------
diff --git a/openmp/runtime/src/kmp_os.h b/openmp/runtime/src/kmp_os.h
index fe02ccfae06ff..011c517f34b13 100644
--- a/openmp/runtime/src/kmp_os.h
+++ b/openmp/runtime/src/kmp_os.h
@@ -139,7 +139,7 @@ typedef struct kmp_struct64 kmp_uint64;
#undef KMP_USE_X87CONTROL
#define KMP_USE_X87CONTROL 1
#endif
-#if KMP_ARCH_X86_64
+#if KMP_ARCH_X86_64 || KMP_ARCH_AARCH64
#define KMP_INTPTR 1
typedef __int64 kmp_intptr_t;
typedef unsigned __int64 kmp_uintptr_t;
@@ -463,8 +463,13 @@ inline kmp_real32 KMP_XCHG_REAL32(volatile kmp_real32 *p, kmp_real32 v) {
return *(kmp_real32 *)&tmp;
}
-// Routines that we still need to implement in assembly.
-extern kmp_int8 __kmp_test_then_add8(volatile kmp_int8 *p, kmp_int8 v);
+#define KMP_TEST_THEN_OR8(p, v) __kmp_test_then_or8((p), (v))
+#define KMP_TEST_THEN_AND8(p, v) __kmp_test_then_and8((p), (v))
+#define KMP_TEST_THEN_OR32(p, v) __kmp_test_then_or32((p), (v))
+#define KMP_TEST_THEN_AND32(p, v) __kmp_test_then_and32((p), (v))
+#define KMP_TEST_THEN_OR64(p, v) __kmp_test_then_or64((p), (v))
+#define KMP_TEST_THEN_AND64(p, v) __kmp_test_then_and64((p), (v))
+
extern kmp_int8 __kmp_test_then_or8(volatile kmp_int8 *p, kmp_int8 v);
extern kmp_int8 __kmp_test_then_and8(volatile kmp_int8 *p, kmp_int8 v);
extern kmp_int32 __kmp_test_then_add32(volatile kmp_int32 *p, kmp_int32 v);
@@ -474,6 +479,113 @@ extern kmp_int64 __kmp_test_then_add64(volatile kmp_int64 *p, kmp_int64 v);
extern kmp_uint64 __kmp_test_then_or64(volatile kmp_uint64 *p, kmp_uint64 v);
extern kmp_uint64 __kmp_test_then_and64(volatile kmp_uint64 *p, kmp_uint64 v);
+#if KMP_ARCH_AARCH64 && KMP_COMPILER_MSVC && !KMP_COMPILER_CLANG
+#define KMP_TEST_THEN_INC64(p) _InterlockedExchangeAdd64((p), 1LL)
+#define KMP_TEST_THEN_INC_ACQ64(p) _InterlockedExchangeAdd64_acq((p), 1LL)
+#define KMP_TEST_THEN_ADD4_64(p) _InterlockedExchangeAdd64((p), 4LL)
+// #define KMP_TEST_THEN_ADD4_ACQ64(p) _InterlockedExchangeAdd64_acq((p), 4LL)
+// #define KMP_TEST_THEN_DEC64(p) _InterlockedExchangeAdd64((p), -1LL)
+// #define KMP_TEST_THEN_DEC_ACQ64(p) _InterlockedExchangeAdd64_acq((p), -1LL)
+// #define KMP_TEST_THEN_ADD8(p, v) _InterlockedExchangeAdd8((p), (v))
+#define KMP_TEST_THEN_ADD64(p, v) _InterlockedExchangeAdd64((p), (v))
+
+#define KMP_COMPARE_AND_STORE_ACQ8(p, cv, sv) \
+ __kmp_compare_and_store_acq8((p), (cv), (sv))
+#define KMP_COMPARE_AND_STORE_REL8(p, cv, sv) \
+ __kmp_compare_and_store_rel8((p), (cv), (sv))
+#define KMP_COMPARE_AND_STORE_ACQ16(p, cv, sv) \
+ __kmp_compare_and_store_acq16((p), (cv), (sv))
+// #define KMP_COMPARE_AND_STORE_REL16(p, cv, sv) \
+// __kmp_compare_and_store_rel16((p), (cv), (sv))
+#define KMP_COMPARE_AND_STORE_ACQ32(p, cv, sv) \
+ __kmp_compare_and_store_acq32((volatile kmp_int32 *)(p), (kmp_int32)(cv), \
+ (kmp_int32)(sv))
+#define KMP_COMPARE_AND_STORE_REL32(p, cv, sv) \
+ __kmp_compare_and_store_rel32((volatile kmp_int32 *)(p), (kmp_int32)(cv), \
+ (kmp_int32)(sv))
+#define KMP_COMPARE_AND_STORE_ACQ64(p, cv, sv) \
+ __kmp_compare_and_store_acq64((volatile kmp_int64 *)(p), (kmp_int64)(cv), \
+ (kmp_int64)(sv))
+#define KMP_COMPARE_AND_STORE_REL64(p, cv, sv) \
+ __kmp_compare_and_store_rel64((volatile kmp_int64 *)(p), (kmp_int64)(cv), \
+ (kmp_int64)(sv))
+#define KMP_COMPARE_AND_STORE_PTR(p, cv, sv) \
+ __kmp_compare_and_store_ptr((void *volatile *)(p), (void *)(cv), (void *)(sv))
+
+// KMP_COMPARE_AND_STORE expects this order: pointer, compare, exchange
+// _InterlockedCompareExchange expects this order: pointer, exchange, compare
+// KMP_COMPARE_AND_STORE also returns a bool indicating a successful write. A
+// write is successful if the return value of _InterlockedCompareExchange is the
+// same as the compare value.
+inline kmp_int8 __kmp_compare_and_store_acq8(volatile kmp_int8 *p, kmp_int8 cv,
+ kmp_int8 sv) {
+ return _InterlockedCompareExchange8_acq(p, sv, cv) == cv;
+}
+
+inline kmp_int8 __kmp_compare_and_store_rel8(volatile kmp_int8 *p, kmp_int8 cv,
+ kmp_int8 sv) {
+ return _InterlockedCompareExchange8_rel(p, sv, cv) == cv;
+}
+
+inline kmp_int16 __kmp_compare_and_store_acq16(volatile kmp_int16 *p,
+ kmp_int16 cv, kmp_int16 sv) {
+ return _InterlockedCompareExchange16_acq(p, sv, cv) == cv;
+}
+
+inline kmp_int16 __kmp_compare_and_store_rel16(volatile kmp_int16 *p,
+ kmp_int16 cv, kmp_int16 sv) {
+ return _InterlockedCompareExchange16_rel(p, sv, cv) == cv;
+}
+
+inline kmp_int32 __kmp_compare_and_store_acq32(volatile kmp_int32 *p,
+ kmp_int32 cv, kmp_int32 sv) {
+ return _InterlockedCompareExchange_acq((volatile long *)p, sv, cv) == cv;
+}
+
+inline kmp_int32 __kmp_compare_and_store_rel32(volatile kmp_int32 *p,
+ kmp_int32 cv, kmp_int32 sv) {
+ return _InterlockedCompareExchange_rel((volatile long *)p, sv, cv) == cv;
+}
+
+inline kmp_int32 __kmp_compare_and_store_acq64(volatile kmp_int64 *p,
+ kmp_int64 cv, kmp_int64 sv) {
+ return _InterlockedCompareExchange64_acq(p, sv, cv) == cv;
+}
+
+inline kmp_int32 __kmp_compare_and_store_rel64(volatile kmp_int64 *p,
+ kmp_int64 cv, kmp_int64 sv) {
+ return _InterlockedCompareExchange64_rel(p, sv, cv) == cv;
+}
+
+inline kmp_int32 __kmp_compare_and_store_ptr(void *volatile *p, void *cv,
+ void *sv) {
+ return _InterlockedCompareExchangePointer(p, sv, cv) == cv;
+}
+
+// The _RET versions return the value instead of a bool
+// #define KMP_COMPARE_AND_STORE_RET8(p, cv, sv) \
+// _InterlockedCompareExchange8((p), (sv), (cv))
+// #define KMP_COMPARE_AND_STORE_RET16(p, cv, sv) \
+// _InterlockedCompareExchange16((p), (sv), (cv))
+#define KMP_COMPARE_AND_STORE_RET64(p, cv, sv) \
+ _InterlockedCompareExchange64((volatile kmp_int64 *)(p), (kmp_int64)(sv), \
+ (kmp_int64)(cv))
+
+// #define KMP_XCHG_FIXED8(p, v) \
+// _InterlockedExchange8((volatile kmp_int8 *)(p), (kmp_int8)(v));
+// #define KMP_XCHG_FIXED16(p, v) _InterlockedExchange16((p), (v));
+// #define KMP_XCHG_REAL64(p, v) __kmp_xchg_real64((p), (v)));
+
+// inline kmp_real64 __kmp_xchg_real64(volatile kmp_real64 *p, kmp_real64 v) {
+// kmp_int64 tmp = _InterlockedExchange64((volatile kmp_int64 *)p, *(kmp_int64
+// *)&v); return *(kmp_real64 *)&tmp;
+// }
+
+#else // !KMP_ARCH_AARCH64
+
+// Routines that we still need to implement in assembly.
+extern kmp_int8 __kmp_test_then_add8(volatile kmp_int8 *p, kmp_int8 v);
+
extern kmp_int8 __kmp_compare_and_store8(volatile kmp_int8 *p, kmp_int8 cv,
kmp_int8 sv);
extern kmp_int16 __kmp_compare_and_store16(volatile kmp_int16 *p, kmp_int16 cv,
@@ -514,12 +626,6 @@ extern kmp_real64 __kmp_xchg_real64(volatile kmp_real64 *p, kmp_real64 v);
#define KMP_TEST_THEN_ADD8(p, v) __kmp_test_then_add8((p), (v))
#define KMP_TEST_THEN_ADD64(p, v) __kmp_test_then_add64((p), (v))
-#define KMP_TEST_THEN_OR8(p, v) __kmp_test_then_or8((p), (v))
-#define KMP_TEST_THEN_AND8(p, v) __kmp_test_then_and8((p), (v))
-#define KMP_TEST_THEN_OR32(p, v) __kmp_test_then_or32((p), (v))
-#define KMP_TEST_THEN_AND32(p, v) __kmp_test_then_and32((p), (v))
-#define KMP_TEST_THEN_OR64(p, v) __kmp_test_then_or64((p), (v))
-#define KMP_TEST_THEN_AND64(p, v) __kmp_test_then_and64((p), (v))
#define KMP_COMPARE_AND_STORE_ACQ8(p, cv, sv) \
__kmp_compare_and_store8((p), (cv), (sv))
@@ -567,6 +673,7 @@ extern kmp_real64 __kmp_xchg_real64(volatile kmp_real64 *p, kmp_real64 v);
//#define KMP_XCHG_FIXED64(p, v) __kmp_xchg_fixed64((p), (v));
//#define KMP_XCHG_REAL32(p, v) __kmp_xchg_real32((p), (v));
#define KMP_XCHG_REAL64(p, v) __kmp_xchg_real64((p), (v));
+#endif
#elif (KMP_ASM_INTRINS && KMP_OS_UNIX) || !(KMP_ARCH_X86 || KMP_ARCH_X86_64)
@@ -885,8 +992,13 @@ extern kmp_real64 __kmp_xchg_real64(volatile kmp_real64 *p, kmp_real64 v);
#if KMP_ARCH_PPC64 || KMP_ARCH_ARM || KMP_ARCH_AARCH64 || KMP_ARCH_MIPS || \
KMP_ARCH_MIPS64 || KMP_ARCH_RISCV64
+#if KMP_OS_WINDOWS
+#undef KMP_MB
+#define KMP_MB() std::atomic_thread_fence(std::memory_order_seq_cst)
+#else /* !KMP_OS_WINDOWS */
#define KMP_MB() __sync_synchronize()
#endif
+#endif
#ifndef KMP_MB
#define KMP_MB() /* nothing to do */
diff --git a/openmp/runtime/src/kmp_platform.h b/openmp/runtime/src/kmp_platform.h
index 4dbc0158880ea..bbbd72dd6951f 100644
--- a/openmp/runtime/src/kmp_platform.h
+++ b/openmp/runtime/src/kmp_platform.h
@@ -97,6 +97,9 @@
#if defined(_M_AMD64) || defined(__x86_64)
#undef KMP_ARCH_X86_64
#define KMP_ARCH_X86_64 1
+#elif defined(__aarch64__) || defined(_M_ARM64)
+#undef KMP_ARCH_AARCH64
+#define KMP_ARCH_AARCH64 1
#else
#undef KMP_ARCH_X86
#define KMP_ARCH_X86 1
diff --git a/openmp/runtime/src/z_Windows_NT-586_util.cpp b/openmp/runtime/src/z_Windows_NT-586_util.cpp
index b3728a5d975f4..991943c1b2b57 100644
--- a/openmp/runtime/src/z_Windows_NT-586_util.cpp
+++ b/openmp/runtime/src/z_Windows_NT-586_util.cpp
@@ -12,7 +12,7 @@
#include "kmp.h"
-#if (KMP_ARCH_X86 || KMP_ARCH_X86_64)
+#if (KMP_ARCH_X86 || KMP_ARCH_X86_64 || KMP_ARCH_AARCH64)
/* Only 32-bit "add-exchange" instruction on IA-32 architecture causes us to
use compare_and_store for these routines */
@@ -22,7 +22,7 @@ kmp_int8 __kmp_test_then_or8(volatile kmp_int8 *p, kmp_int8 d) {
old_value = TCR_1(*p);
new_value = old_value | d;
- while (!__kmp_compare_and_store8(p, old_value, new_value)) {
+ while (!KMP_COMPARE_AND_STORE_REL8(p, old_value, new_value)) {
KMP_CPU_PAUSE();
old_value = TCR_1(*p);
new_value = old_value | d;
@@ -36,7 +36,7 @@ kmp_int8 __kmp_test_then_and8(volatile kmp_int8 *p, kmp_int8 d) {
old_value = TCR_1(*p);
new_value = old_value & d;
- while (!__kmp_compare_and_store8(p, old_value, new_value)) {
+ while (!KMP_COMPARE_AND_STORE_REL8(p, old_value, new_value)) {
KMP_CPU_PAUSE();
old_value = TCR_1(*p);
new_value = old_value & d;
@@ -50,8 +50,8 @@ kmp_uint32 __kmp_test_then_or32(volatile kmp_uint32 *p, kmp_uint32 d) {
old_value = TCR_4(*p);
new_value = old_value | d;
- while (!__kmp_compare_and_store32((volatile kmp_int32 *)p, old_value,
- new_value)) {
+ while (!KMP_COMPARE_AND_STORE_REL32((volatile kmp_int32 *)p, old_value,
+ new_value)) {
KMP_CPU_PAUSE();
old_value = TCR_4(*p);
new_value = old_value | d;
@@ -65,8 +65,8 @@ kmp_uint32 __kmp_test_then_and32(volatile kmp_uint32 *p, kmp_uint32 d) {
old_value = TCR_4(*p);
new_value = old_value & d;
- while (!__kmp_compare_and_store32((volatile kmp_int32 *)p, old_value,
- new_value)) {
+ while (!KMP_COMPARE_AND_STORE_REL32((volatile kmp_int32 *)p, old_value,
+ new_value)) {
KMP_CPU_PAUSE();
old_value = TCR_4(*p);
new_value = old_value & d;
@@ -74,6 +74,7 @@ kmp_uint32 __kmp_test_then_and32(volatile kmp_uint32 *p, kmp_uint32 d) {
return old_value;
}
+#if KMP_ARCH_X86 || KMP_ARCH_X86_64
kmp_int8 __kmp_test_then_add8(volatile kmp_int8 *p, kmp_int8 d) {
kmp_int64 old_value, new_value;
@@ -101,14 +102,15 @@ kmp_int64 __kmp_test_then_add64(volatile kmp_int64 *p, kmp_int64 d) {
return old_value;
}
#endif /* KMP_ARCH_X86 */
+#endif /* KMP_ARCH_X86 || KMP_ARCH_X86_64 */
kmp_uint64 __kmp_test_then_or64(volatile kmp_uint64 *p, kmp_uint64 d) {
kmp_uint64 old_value, new_value;
old_value = TCR_8(*p);
new_value = old_value | d;
- while (!__kmp_compare_and_store64((volatile kmp_int64 *)p, old_value,
- new_value)) {
+ while (!KMP_COMPARE_AND_STORE_REL64((volatile kmp_int64 *)p, old_value,
+ new_value)) {
KMP_CPU_PAUSE();
old_value = TCR_8(*p);
new_value = old_value | d;
@@ -122,8 +124,8 @@ kmp_uint64 __kmp_test_then_and64(volatile kmp_uint64 *p, kmp_uint64 d) {
old_value = TCR_8(*p);
new_value = old_value & d;
- while (!__kmp_compare_and_store64((volatile kmp_int64 *)p, old_value,
- new_value)) {
+ while (!KMP_COMPARE_AND_STORE_REL64((volatile kmp_int64 *)p, old_value,
+ new_value)) {
KMP_CPU_PAUSE();
old_value = TCR_8(*p);
new_value = old_value & d;
@@ -132,4 +134,57 @@ kmp_uint64 __kmp_test_then_and64(volatile kmp_uint64 *p, kmp_uint64 d) {
return old_value;
}
-#endif /* KMP_ARCH_X86 || KMP_ARCH_X86_64 */
+#if KMP_ARCH_AARCH64
+int __kmp_invoke_microtask(microtask_t pkfn, int gtid, int tid, int argc,
+ void *p_argv[]
+#if OMPT_SUPPORT
+ ,
+ void **exit_frame_ptr
+#endif
+) {
+#if OMPT_SUPPORT
+ *exit_frame_ptr = OMPT_GET_FRAME_ADDRESS(0);
+#endif
+
+ switch (argc) {
+ case 0:
+ (*pkfn)(>id, &tid);
+ break;
+ case 1:
+ (*pkfn)(>id, &tid, p_argv[0]);
+ break;
+ case 2:
+ (*pkfn)(>id, &tid, p_argv[0], p_argv[1]);
+ break;
+ case 3:
+ (*pkfn)(>id, &tid, p_argv[0], p_argv[1], p_argv[2]);
+ break;
+ case 4:
+ (*pkfn)(>id, &tid, p_argv[0], p_argv[1], p_argv[2], p_argv[3]);
+ break;
+ case 5:
+ (*pkfn)(>id, &tid, p_argv[0], p_argv[1], p_argv[2], p_argv[3], p_argv[4]);
+ break;
+ default: {
+ // p_argv[6] and onwards must be passed on the stack since 8 registers are
+ // already used.
+ size_t len = (argc - 6) * sizeof(void *);
+ void *argbuf = alloca(len);
+ memcpy(argbuf, &p_argv[6], len);
+ }
+ [[fallthrough]];
+ case 6:
+ (*pkfn)(>id, &tid, p_argv[0], p_argv[1], p_argv[2], p_argv[3], p_argv[4],
+ p_argv[5]);
+ break;
+ }
+
+#if OMPT_SUPPORT
+ *exit_frame_ptr = 0;
+#endif
+
+ return 1;
+}
+#endif
+
+#endif /* KMP_ARCH_X86 || KMP_ARCH_X86_64 || KMP_ARCH_AARCH64 */
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