diff options
Diffstat (limited to 'test/Sema/inline-asm-validate-x86.c')
| -rw-r--r-- | test/Sema/inline-asm-validate-x86.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/test/Sema/inline-asm-validate-x86.c b/test/Sema/inline-asm-validate-x86.c index f21ef6940a6d..5ea20eec0599 100644 --- a/test/Sema/inline-asm-validate-x86.c +++ b/test/Sema/inline-asm-validate-x86.c @@ -1,5 +1,5 @@ // RUN: %clang_cc1 -triple i686 -fsyntax-only -verify %s -// RUN: %clang_cc1 -triple x86_64 -fsyntax-only -verify %s +// RUN: %clang_cc1 -triple x86_64 -fsyntax-only -verify -DAMD64 %s void I(int i, int j) { static const int BelowMin = -1; @@ -55,6 +55,7 @@ void K(int i, int j) { void L(int i, int j) { static const int Invalid1 = 1; static const int Invalid2 = 42; + static const int Invalid3 = 0; static const int Valid1 = 0xff; static const int Valid2 = 0xffff; static const int Valid3 = 0xffffffff; @@ -69,6 +70,9 @@ void L(int i, int j) { : "0"(i), "L"(Invalid2)); // expected-error{{value '42' out of range for constraint 'L'}} __asm__("xorl %0,%2" : "=r"(i) + : "0"(i), "L"(Invalid3)); // expected-error{{value '0' out of range for constraint 'L'}} + __asm__("xorl %0,%2" + : "=r"(i) : "0"(i), "L"(Valid1)); // expected-no-error __asm__("xorl %0,%2" : "=r"(i) @@ -129,3 +133,21 @@ void O(int i, int j) { : "0"(i), "O"(64)); // expected-no-error } +void pr40890(void) { + struct s { + int a, b; + }; + static struct s s; + // This null pointer can be used as an integer constant expression. + __asm__ __volatile__("\n#define S_A abcd%0\n" : : "n"(&((struct s*)0)->a)); + // This offset-from-null pointer can be used as an integer constant expression. + __asm__ __volatile__("\n#define S_B abcd%0\n" : : "n"(&((struct s*)0)->b)); + // This pointer cannot be used as an integer constant expression. + __asm__ __volatile__("\n#define GLOBAL_A abcd%0\n" : : "n"(&s.a)); // expected-error{{constraint 'n' expects an integer constant expression}} + // Floating-point is also not okay. + __asm__ __volatile__("\n#define PI abcd%0\n" : : "n"(3.14f)); // expected-error{{constraint 'n' expects an integer constant expression}} +#ifdef AMD64 + // This arbitrary pointer is fine. + __asm__ __volatile__("\n#define BEEF abcd%0\n" : : "n"((int*)0xdeadbeeeeeef)); +#endif +} |