Author: Malay Sanghi Date: 2024-06-21T13:09:47+08:00 New Revision: 348240362f9673c824c0ad22fd9e13ae3f937864
URL: https://github.com/llvm/llvm-project/commit/348240362f9673c824c0ad22fd9e13ae3f937864 DIFF: https://github.com/llvm/llvm-project/commit/348240362f9673c824c0ad22fd9e13ae3f937864.diff LOG: [X86]Add support for __outbyte/word/dword and __inbyte/word/dword (#93774) A previous commit implemented _inp/w/d and renaming that to __inbyte/word/dword These intrinsics were declared in the header but never implemented. Added: Modified: clang/lib/Headers/intrin.h clang/test/CodeGen/X86/ms-x86-intrinsics.c Removed: ################################################################################ diff --git a/clang/lib/Headers/intrin.h b/clang/lib/Headers/intrin.h index 1227f45d5432b..d2250926ce5e1 100644 --- a/clang/lib/Headers/intrin.h +++ b/clang/lib/Headers/intrin.h @@ -330,24 +330,35 @@ static __inline__ void __DEFAULT_FN_ATTRS __halt(void) { __asm__ volatile("hlt"); } -static inline int _inp(unsigned short port) { - int ret; - __asm__ volatile("inb %w1, %b0" : "=a"(ret) : "Nd"(port)); +static inline unsigned char __inbyte(unsigned short port) { + unsigned char ret; + __asm__ __volatile__("inb %w1, %b0" : "=a"(ret) : "Nd"(port)); return ret; } -static inline unsigned short _inpw(unsigned short port) { +static inline unsigned short __inword(unsigned short port) { unsigned short ret; - __asm__ volatile("inw %w1, %w0" : "=a"(ret) : "Nd"(port)); + __asm__ __volatile__("inw %w1, %w0" : "=a"(ret) : "Nd"(port)); return ret; } -static inline unsigned long _inpd(unsigned short port) { +static inline unsigned long __indword(unsigned short port) { unsigned long ret; - __asm__ volatile("inl %w1, %k0" : "=a"(ret) : "Nd"(port)); + __asm__ __volatile__("inl %w1, %k0" : "=a"(ret) : "Nd"(port)); return ret; } +static inline void __outbyte(unsigned short port, unsigned char data) { + __asm__ __volatile__("outb %b0, %w1" : : "a"(data), "Nd"(port)); +} + +static inline void __outword(unsigned short port, unsigned short data) { + __asm__ __volatile__("outw %w0, %w1" : : "a"(data), "Nd"(port)); +} + +static inline void __outdword(unsigned short port, unsigned long data) { + __asm__ __volatile__("outl %k0, %w1" : : "a"(data), "Nd"(port)); +} #endif #if defined(__i386__) || defined(__x86_64__) || defined(__aarch64__) diff --git a/clang/test/CodeGen/X86/ms-x86-intrinsics.c b/clang/test/CodeGen/X86/ms-x86-intrinsics.c index 9566951b44d2d..b90e2679e26d2 100644 --- a/clang/test/CodeGen/X86/ms-x86-intrinsics.c +++ b/clang/test/CodeGen/X86/ms-x86-intrinsics.c @@ -64,30 +64,54 @@ unsigned __int64 test__emulu(unsigned int a, unsigned int b) { // CHECK: ret i64 [[RES]] -int test_inp(unsigned short port) { - return _inp(port); +unsigned char test_inbyte(unsigned short port) { + return __inbyte(port); } -// CHECK-LABEL: i32 @test_inp(i16 noundef +// CHECK-LABEL: i8 @test_inbyte(i16 noundef // CHECK-SAME: [[PORT:%.*]]) -// CHECK: [[TMP0:%.*]] = tail call i32 asm sideeffect "inb ${1:w}, ${0:b}", "={ax},N{dx},~{dirflag},~{fpsr},~{flags}"(i16 [[PORT]]) -// CHECK-NEXT: ret i32 [[TMP0]] +// CHECK: [[TMP0:%.*]] = tail call i8 asm sideeffect "inb ${1:w}, ${0:b}", "={ax},N{dx},~{dirflag},~{fpsr},~{flags}"(i16 [[PORT]]) +// CHECK-NEXT: ret i8 [[TMP0]] -unsigned short test_inpw(unsigned short port) { - return _inpw(port); +unsigned short test_inword(unsigned short port) { + return __inword(port); } -// CHECK-LABEL: i16 @test_inpw(i16 noundef +// CHECK-LABEL: i16 @test_inword(i16 noundef // CHECK-SAME: [[PORT:%.*]]) // CHECK: [[TMP0:%.*]] = tail call i16 asm sideeffect "inw ${1:w}, ${0:w}", "={ax},N{dx},~{dirflag},~{fpsr},~{flags}"(i16 [[PORT]]) // CHECK-NEXT: ret i16 [[TMP0]] -unsigned long test_inpd(unsigned short port) { - return _inpd(port); +unsigned long test_indword(unsigned short port) { + return __indword(port); } -// CHECK-LABEL: i32 @test_inpd(i16 noundef +// CHECK-LABEL: i32 @test_indword(i16 noundef // CHECK-SAME: [[PORT:%.*]]) // CHECK: [[TMP0:%.*]] = tail call i32 asm sideeffect "inl ${1:w}, ${0:k}", "={ax},N{dx},~{dirflag},~{fpsr},~{flags}"(i16 [[PORT]]) // CHECK-NEXT: ret i32 [[TMP0]] +void test_outbyte(unsigned short port, unsigned char data) { + return __outbyte(port, data); +} +// CHECK-LABEL: void @test_outbyte( +// CHECK-SAME: [[PORT:%.*]], +// CHECK-SAME: [[DATA:%.*]]) +// CHECK: tail call void asm sideeffect "outb ${0:b}, ${1:w}", "{ax},N{dx},~{dirflag},~{fpsr},~{flags}"(i8 [[DATA]], i16 [[PORT]]) + +void test_outword(unsigned short port, unsigned short data) { + return __outword(port, data); +} +// CHECK-LABEL: void @test_outword( +// CHECK-SAME: [[PORT:%.*]], +// CHECK-SAME: [[DATA:%.*]]) +// CHECK: tail call void asm sideeffect "outw ${0:w}, ${1:w}", "{ax},N{dx},~{dirflag},~{fpsr},~{flags}"(i16 [[DATA]], i16 [[PORT]]) + +void test_outdword(unsigned short port, unsigned long data) { + return __outdword(port, data); +} +// CHECK-LABEL: void @test_outdword( +// CHECK-SAME: [[PORT:%.*]], +// CHECK-SAME: [[DATA:%.*]]) +// CHECK: tail call void asm sideeffect "outl ${0:k}, ${1:w}", "{ax},N{dx},~{dirflag},~{fpsr},~{flags}"(i32 [[DATA]], i16 [[PORT]]) + #if defined(__x86_64__) char test__readgsbyte(unsigned long Offset) { _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
