mcgrathr created this revision. mcgrathr added reviewers: phosek, leonardchan. Herald added a project: clang. Herald added a subscriber: cfe-commits. mcgrathr requested review of this revision.
This header has long lacked a standard multiple inclusion guard like other headers have, for no apparent reason. The GCC header of the same name likewise lacks one up through release 10.1, but trunk GCC (release 11, and perhaps future 10.x) has fixed it (see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96238). Repository: rG LLVM Github Monorepo https://reviews.llvm.org/D91226 Files: clang/lib/Headers/cpuid.h clang/test/Headers/cpuid.c Index: clang/test/Headers/cpuid.c =================================================================== --- clang/test/Headers/cpuid.c +++ clang/test/Headers/cpuid.c @@ -2,6 +2,7 @@ // RUN: %clang_cc1 %s -ffreestanding -triple i386 -emit-llvm -o - | FileCheck %s --check-prefix=CHECK-32 #include <cpuid.h> +#include <cpuid.h> // Make sure multiple inclusion protection works. // CHECK-64: {{.*}} call { i32, i32, i32, i32 } asm " xchgq %rbx,${1:q}\0A cpuid\0A xchgq %rbx,${1:q}", "={ax},=r,={cx},={dx},0,~{dirflag},~{fpsr},~{flags}"(i32 %{{[a-z0-9]+}}) // CHECK-64: {{.*}} call { i32, i32, i32, i32 } asm " xchgq %rbx,${1:q}\0A cpuid\0A xchgq %rbx,${1:q}", "={ax},=r,={cx},={dx},0,2,~{dirflag},~{fpsr},~{flags}"(i32 %{{[a-z0-9]+}}, i32 %{{[a-z0-9]+}}) Index: clang/lib/Headers/cpuid.h =================================================================== --- clang/lib/Headers/cpuid.h +++ clang/lib/Headers/cpuid.h @@ -7,6 +7,9 @@ *===-----------------------------------------------------------------------=== */ +#ifndef __CPUID_H +#define __CPUID_H + #if !(__x86_64__ || __i386__) #error this header is for x86 only #endif @@ -312,3 +315,5 @@ __cpuid_count(__leaf, __subleaf, *__eax, *__ebx, *__ecx, *__edx); return 1; } + +#endif /* __CPUID_H */
Index: clang/test/Headers/cpuid.c =================================================================== --- clang/test/Headers/cpuid.c +++ clang/test/Headers/cpuid.c @@ -2,6 +2,7 @@ // RUN: %clang_cc1 %s -ffreestanding -triple i386 -emit-llvm -o - | FileCheck %s --check-prefix=CHECK-32 #include <cpuid.h> +#include <cpuid.h> // Make sure multiple inclusion protection works. // CHECK-64: {{.*}} call { i32, i32, i32, i32 } asm " xchgq %rbx,${1:q}\0A cpuid\0A xchgq %rbx,${1:q}", "={ax},=r,={cx},={dx},0,~{dirflag},~{fpsr},~{flags}"(i32 %{{[a-z0-9]+}}) // CHECK-64: {{.*}} call { i32, i32, i32, i32 } asm " xchgq %rbx,${1:q}\0A cpuid\0A xchgq %rbx,${1:q}", "={ax},=r,={cx},={dx},0,2,~{dirflag},~{fpsr},~{flags}"(i32 %{{[a-z0-9]+}}, i32 %{{[a-z0-9]+}}) Index: clang/lib/Headers/cpuid.h =================================================================== --- clang/lib/Headers/cpuid.h +++ clang/lib/Headers/cpuid.h @@ -7,6 +7,9 @@ *===-----------------------------------------------------------------------=== */ +#ifndef __CPUID_H +#define __CPUID_H + #if !(__x86_64__ || __i386__) #error this header is for x86 only #endif @@ -312,3 +315,5 @@ __cpuid_count(__leaf, __subleaf, *__eax, *__ebx, *__ecx, *__edx); return 1; } + +#endif /* __CPUID_H */
_______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits