Commit 7edd9ddc authored by Peter Maydell's avatar Peter Maydell Committed by Michael Tokarev
Browse files

tests/test-int128: Don't use __noclone__ attribute on clang 



clang doesn't support the __noclone__ attribute and emits a warning about
it. Fortunately clang also implements a mechanism for asking if a particular
attribute is implemented; use it. We assume that if the compiler doesn't
support __has_attribute() then it must be GCC and must support __noclone__.

Signed-off-by: default avatarPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: default avatarMichael Tokarev <mjt@tls.msk.ru>
parent 8ead6018

tests/test-int128.c

+14 −1
Original line number Diff line number Diff line
@@ -11,6 +11,19 @@ 
#include "qemu/int128.h"

#include "qemu/osdep.h"



/* clang doesn't support __noclone__ but it does have a mechanism for

 * telling us this. We assume that if we don't have __has_attribute()

 * then this is GCC and that GCC always supports __noclone__.

 */

#if defined(__has_attribute)

#if !__has_attribute(__noclone__)

#define ATTRIBUTE_NOCLONE

#endif

#endif

#ifndef ATTRIBUTE_NOCLONE

#define ATTRIBUTE_NOCLONE __attribute__((__noclone__))

#endif



static uint32_t tests[8] = {

    0x00000000, 0x00000001, 0x7FFFFFFE, 0x7FFFFFFF,

    0x80000000, 0x80000001, 0xFFFFFFFE, 0xFFFFFFFF,
@@ -164,7 +177,7 @@ static void test_gt(void) 


/* Make sure to test undefined behavior at runtime! */



static void __attribute__((__noinline__, __noclone__))

static void __attribute__((__noinline__)) ATTRIBUTE_NOCLONE

test_rshift_one(uint32_t x, int n, uint64_t h, uint64_t l)

{

    Int128 a = expand(x);