#endif /* __x86_64__ */
-// Move 64 bytes as direct store
+/*
+ * movdir64b - Move 64 bytes as direct store.
+ * The destination must be 64 byte aligned, and the store is atomic.
+ * The source address has no alignment requirement, and the load from
+ * the source address is not atomic.
+ */
static __inline__ void
__attribute__((__always_inline__, __nodebug__, __target__("movdir64b")))
-_movdir64b (void *__dst, const void *__src)
+_movdir64b (void *__dst __attribute__((align_value(64))), const void *__src)
{
__builtin_ia32_movdir64b(__dst, __src);
}
// RUN: %clang_cc1 -ffreestanding -Wall -pedantic -triple x86_64-unknown-unknown -target-feature +movdiri -target-feature +movdir64b %s -emit-llvm -o - | FileCheck %s --check-prefix=X86_64 --check-prefix=CHECK
-// RUN: %clang_cc1 -ffreestanding -Wall -pedantic -triple i386-unknown-unknown -target-feature +movdiri -target-feature +movdir64b %s -emit-llvm -o - | FileCheck %s --check-prefix=CHECK
+// RUN: %clang_cc1 -ffreestanding -Wall -pedantic -triple i386-unknown-unknown -target-feature +movdiri -target-feature +movdir64b %s -emit-llvm -o - | FileCheck %s --check-prefix=X86 --check-prefix=CHECK
#include <x86intrin.h>
#include <stdint.h>
void test_dir64b(void *dst, const void *src) {
// CHECK-LABEL: test_dir64b
+ // CHECK: [[PTRINT1:%.+]] = ptrtoint
+ // X86: [[MASKEDPTR1:%.+]] = and i32 [[PTRINT1]], 63
+ // X86: [[MASKCOND1:%.+]] = icmp eq i32 [[MASKEDPTR1]], 0
+ // X86_64: [[MASKEDPTR1:%.+]] = and i64 [[PTRINT1]], 63
+ // X86_64: [[MASKCOND1:%.+]] = icmp eq i64 [[MASKEDPTR1]], 0
// CHECK: call void @llvm.x86.movdir64b
_movdir64b(dst, src);
}