we need to disable or adjust some tests where clang behaves slightly different from GCC: * slight difference in __FILE__ behaviour * difference (to less useful vs GCC) in computed #include * difference in __builtin_constant_p * attribute(weak, alias) isn't supported by clang on MacOS (though it could be, as Mach-O has the capabilities for this) * the built-in assembler of clang is mediocre this was all checked with Apple LLVM version 10.0.1 (clang-1001.0.46.4)
Unified · Split
| @@ -64,7 +64,13 @@ typedef __SIZE_TYPE__ uintptr_t; · 63 unmodified lines | ||
| 64 | 64 | #define INC(name) <tests/name.h> |
| 65 | 65 | #define funnyname 42test.h |
| 66 | 66 | #define incdir tests/ |
| 67 | +#ifdef __clang__ | |
| 68 | +/* clang's preprocessor is broken in this regard and adds spaces | |
| 69 | + to the tokens 'incdir' and 'funnyname' when expanding */ | |
| 70 | +#define incname <tests/42test.h> | |
| 71 | +#else | |
| 67 | 72 | #define incname < incdir funnyname > |
| 73 | +#endif | |
| 68 | 74 | #define __stringify(x) #x |
| 69 | 75 | #define stringify(x) __stringify(x) |
| 70 | 76 | #include INC(42test) |
| @@ -411,10 +417,17 @@ comment · 340 unmodified lines | ||
| 411 | 417 | comment. */ |
| 412 | 418 | TEST2 /* the comment */ (); |
| 413 | 419 | |
| 414 | − printf("%s\n", get_basefile_from_header()); | |
| 415 | − printf("%s\n", __BASE_FILE__); | |
| 416 | − printf("%s\n", get_file_from_header()); | |
| 417 | − printf("%s\n", __FILE__); | |
| 420 | + printf("basefromheader %s\n", get_basefile_from_header()); | |
| 421 | + printf("base %s\n", __BASE_FILE__); | |
| 422 | + { | |
| 423 | + /* Some compilers (clang) prepend './' to __FILE__ from included | |
| 424 | + files. */ | |
| 425 | + const char *fn = get_file_from_header(); | |
| 426 | + if (fn[0] == '.' && fn[1] == '/') | |
| 427 | + fn += 2; | |
| 428 | + printf("filefromheader %s\n", fn); | |
| 429 | + } | |
| 430 | + printf("file %s\n", __FILE__); | |
| 418 | 431 | |
| 419 | 432 | /* Check that funnily named include was in fact included */ |
| 420 | 433 | have_included_42test_h = 1; |
| @@ -3330,6 +3343,8 @@ static __inline__ void sigdelset1(unsigned int *set, int _sig) · 2909 unmodified lines | ||
| 3330 | 3343 | asm("btrl %1,%0" : "=m"(*set) : "Ir"(_sig - 1) : "cc", "flags"); |
| 3331 | 3344 | } |
| 3332 | 3345 | |
| 3346 | +#ifndef __APPLE__ | |
| 3347 | +/* clang's inline asm is uncapable of 'xchgb %b0,%h0' */ | |
| 3333 | 3348 | static __inline__ __const__ unsigned int swab32(unsigned int x) |
| 3334 | 3349 | { |
| 3335 | 3350 | __asm__("xchgb %b0,%h0\n\t" /* swap lower bytes */ |
| @@ -3339,6 +3354,7 @@ static __inline__ __const__ unsigned int swab32(unsigned int x) · 3 unmodified lines | ||
| 3339 | 3354 | : "0" (x)); |
| 3340 | 3355 | return x; |
| 3341 | 3356 | } |
| 3357 | +#endif | |
| 3342 | 3358 | |
| 3343 | 3359 | static __inline__ unsigned long long mul64(unsigned int a, unsigned int b) |
| 3344 | 3360 | { |
| @@ -3415,6 +3431,7 @@ void base_func(void) · 70 unmodified lines | ||
| 3415 | 3431 | printf ("asmc: base\n"); |
| 3416 | 3432 | } |
| 3417 | 3433 | |
| 3434 | +#ifndef __APPLE__ | |
| 3418 | 3435 | extern void override_func1 (void); |
| 3419 | 3436 | extern void override_func2 (void); |
| 3420 | 3437 | |
| @@ -3482,6 +3499,7 @@ void asm_local_label_diff (void) · 61 unmodified lines | ||
| 3482 | 3499 | { |
| 3483 | 3500 | printf ("asm_local_label_diff: %d %d\n", alld_stuff[0], alld_stuff[1]); |
| 3484 | 3501 | } |
| 3502 | +#endif | |
| 3485 | 3503 | |
| 3486 | 3504 | /* This checks that static local variables are available from assembler. */ |
| 3487 | 3505 | void asm_local_statics (void) |
| @@ -3630,8 +3648,10 @@ void test_asm_call(void) · 142 unmodified lines | ||
| 3630 | 3648 | tested here). */ |
| 3631 | 3649 | /* two pushes so stack remains aligned */ |
| 3632 | 3650 | asm volatile ("push %%rdi; push %%rdi; mov %0, %%rdi;" |
| 3633 | −#if 1 && !defined(__TINYC__) && (defined(__PIC__) || defined(__PIE__)) | |
| 3651 | +#if 1 && !defined(__TINYC__) && (defined(__PIC__) || defined(__PIE__)) && !defined(__APPLE__) | |
| 3634 | 3652 | "call getenv@plt;" |
| 3653 | +#elif defined(__APPLE__) && !defined(__TINYC__) | |
| 3654 | + "call _getenv;" | |
| 3635 | 3655 | #else |
| 3636 | 3656 | "call getenv;" |
| 3637 | 3657 | #endif |
| @@ -3656,21 +3676,31 @@ void asm_dot_test(void) · 18 unmodified lines | ||
| 3656 | 3676 | case 1: |
| 3657 | 3677 | asm(".text; lea S"RX",%eax; lea ."RX",%ecx; sub %ecx,%eax; S=.; jmp p0"); |
| 3658 | 3678 | case 2: |
| 3679 | +#ifndef __APPLE__ | |
| 3680 | + /* clangs internal assembler is broken */ | |
| 3659 | 3681 | asm(".text; jmp .+6; .int 123; mov .-4"RX",%eax; jmp p0"); |
| 3682 | +#else | |
| 3683 | + asm(".text; mov $0, %eax; jmp p0"); | |
| 3684 | +#endif | |
| 3660 | 3685 | case 3: |
| 3661 | −#ifndef _WIN32 | |
| 3686 | +#if !defined(_WIN32) && !defined(__APPLE__) | |
| 3662 | 3687 | asm(".pushsection \".data\"; Y=.; .int 999; X=Y; .int 456; X=.-4; .popsection"); |
| 3663 | 3688 | #else |
| 3664 | 3689 | asm(".data; Y=.; .int 999; X=Y; .int 456; X=.-4; .text"); |
| 3665 | 3690 | #endif |
| 3666 | 3691 | asm(".text; mov X"RX",%eax; jmp p0"); |
| 3667 | 3692 | case 4: |
| 3693 | +#ifdef __APPLE__ | |
| 3694 | + /* Bah! Clang! Doesn't want to redefine 'X' */ | |
| 3695 | + asm(".text; mov $123,%eax; jmp p0"); | |
| 3696 | +#else | |
| 3668 | 3697 | #ifndef _WIN32 |
| 3669 | 3698 | asm(".data; X=.; .int 789; Y=.; .int 999; .previous"); |
| 3670 | 3699 | #else |
| 3671 | 3700 | asm(".data; X=.; .int 789; Y=.; .int 999; .text"); |
| 3672 | 3701 | #endif |
| 3673 | 3702 | asm(".text; mov X"RX",%eax; X=Y; jmp p0"); |
| 3703 | +#endif | |
| 3674 | 3704 | case 0: |
| 3675 | 3705 | asm(".text; p0=.; mov %%eax,%0;" : "=m"(r)); break; |
| 3676 | 3706 | } |
| @@ -3731,8 +3761,11 @@ void asm_test(void) · 54 unmodified lines | ||
| 3731 | 3761 | __asm__("btsl %1,%0" : "=m"(set) : "Ir"(20) : "cc"); |
| 3732 | 3762 | printf("set=0x%x\n", set); |
| 3733 | 3763 | val = 0x01020304; |
| 3764 | +#ifndef __APPLE__ | |
| 3734 | 3765 | printf("swab32(0x%08x) = 0x%0x\n", val, swab32(val)); |
| 3766 | +#endif | |
| 3735 | 3767 | #ifndef _WIN32 |
| 3768 | +#ifndef __APPLE__ | |
| 3736 | 3769 | override_func1(); |
| 3737 | 3770 | override_func2(); |
| 3738 | 3771 | /* The base_func ref from the following inline asm should find |
| @@ -3741,13 +3774,17 @@ void asm_test(void) · 2 unmodified lines | ||
| 3741 | 3774 | override_func3(); |
| 3742 | 3775 | printf("asmstr: %s\n", get_asm_string()); |
| 3743 | 3776 | asm_local_label_diff(); |
| 3777 | +#endif | |
| 3744 | 3778 | asm_local_statics(); |
| 3745 | 3779 | #endif |
| 3780 | +#ifndef __APPLE__ | |
| 3781 | + /* clang can't deal with the type change */ | |
| 3746 | 3782 | /* Check that we can also load structs of appropriate layout |
| 3747 | 3783 | into registers. */ |
| 3748 | 3784 | asm volatile("" : "=r" (asmret) : "0"(s2)); |
| 3749 | 3785 | if (asmret != s2.addr) |
| 3750 | 3786 | printf("asmstr: failed\n"); |
| 3787 | +#endif | |
| 3751 | 3788 | #ifdef BOOL_ISOC99 |
| 3752 | 3789 | /* Check that the typesize correctly sets the register size to |
| 3753 | 3790 | 8 bit. */ |
| @@ -3809,14 +3846,19 @@ void builtin_test(void) · 55 unmodified lines | ||
| 3809 | 3846 | /* space is needed because tcc preprocessor introduces a space between each token */ |
| 3810 | 3847 | COMPAT_TYPE(char * *, void *); |
| 3811 | 3848 | #endif |
| 3812 | − printf("res = %d\n", __builtin_constant_p(1)); | |
| 3813 | − printf("res = %d\n", __builtin_constant_p(1 + 2)); | |
| 3814 | − printf("res = %d\n", __builtin_constant_p(&constant_p_var)); | |
| 3815 | − printf("res = %d\n", __builtin_constant_p(constant_p_var)); | |
| 3816 | − printf("res = %d\n", __builtin_constant_p(100000 / constant_p_var)); | |
| 3817 | − printf("res = %d\n", __builtin_constant_p(i && 0)); | |
| 3818 | − printf("res = %d\n", __builtin_constant_p(i && 1)); | |
| 3819 | − printf("res = %d\n", __builtin_constant_p(i && 0 ? i : 34)); | |
| 3849 | + printf("res1 = %d\n", __builtin_constant_p(1)); | |
| 3850 | + printf("res2 = %d\n", __builtin_constant_p(1 + 2)); | |
| 3851 | + printf("res3 = %d\n", __builtin_constant_p(&constant_p_var)); | |
| 3852 | + printf("res4 = %d\n", __builtin_constant_p(constant_p_var)); | |
| 3853 | + printf("res5 = %d\n", __builtin_constant_p(100000 / constant_p_var)); | |
| 3854 | +#ifndef __APPLE__ | |
| 3855 | + /* clang doesn't regard this as constant expression */ | |
| 3856 | + printf("res6 = %d\n", __builtin_constant_p(i && 0)); | |
| 3857 | +#endif | |
| 3858 | + printf("res7 = %d\n", __builtin_constant_p(i && 1)); | |
| 3859 | +#ifndef __APPLE__ | |
| 3860 | + printf("res8 = %d\n", __builtin_constant_p(i && 0 ? i : 34)); | |
| 3861 | +#endif | |
| 3820 | 3862 | s = 1; |
| 3821 | 3863 | ll = 2; |
| 3822 | 3864 | i = __builtin_choose_expr (1 != 0, ll, s); |
| @@ -3850,14 +3892,18 @@ extern int weak_asm_v1 asm("weak_asm_v1x") __attribute · 27 unmodified lines | ||
| 3850 | 3892 | extern int __attribute((weak)) weak_asm_v2 asm("weak_asm_v2x") ; |
| 3851 | 3893 | extern int __attribute((weak)) weak_asm_v3(void) asm("weak_asm_v3x") __attribute((weak)); |
| 3852 | 3894 | |
| 3895 | +#ifndef __APPLE__ | |
| 3853 | 3896 | static const size_t dummy = 0; |
| 3854 | 3897 | extern __typeof(dummy) weak_dummy1 __attribute__((weak, alias("dummy"))); |
| 3855 | 3898 | extern __typeof(dummy) __attribute__((weak, alias("dummy"))) weak_dummy2; |
| 3856 | 3899 | extern __attribute__((weak, alias("dummy"))) __typeof(dummy) weak_dummy3; |
| 3900 | +#endif | |
| 3857 | 3901 | |
| 3858 | 3902 | int some_lib_func(void); |
| 3859 | 3903 | int dummy_impl_of_slf(void) { return 444; } |
| 3904 | +#ifndef __APPLE__ | |
| 3860 | 3905 | int some_lib_func(void) __attribute__((weak, alias("dummy_impl_of_slf"))); |
| 3906 | +#endif | |
| 3861 | 3907 | |
| 3862 | 3908 | int weak_toolate() __attribute__((weak)); |
| 3863 | 3909 | int weak_toolate() { return 0; } |
| @@ -3881,7 +3927,9 @@ void __attribute__((weak)) weak_test(void) · 17 unmodified lines | ||
| 3881 | 3927 | printf("weak_asm_v1=%d\n",&weak_asm_v1 != NULL); |
| 3882 | 3928 | printf("weak_asm_v2=%d\n",&weak_asm_v2 != NULL); |
| 3883 | 3929 | printf("weak_asm_v3=%d\n",&weak_asm_v3 != NULL); |
| 3930 | +#ifndef __APPLE__ | |
| 3884 | 3931 | printf("some_lib_func=%d\n", &some_lib_func ? some_lib_func() : 0); |
| 3932 | +#endif | |
| 3885 | 3933 | } |
| 3886 | 3934 | |
| 3887 | 3935 | int __attribute__((weak)) weak_f2() { return 222; } |