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Revert "[X86] Add support for MS inp functions." #95890

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Revert "[X86] Add support for MS inp functions." #95890

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19 changes: 0 additions & 19 deletions clang/lib/Headers/intrin.h
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Original file line number Diff line number Diff line change
Expand Up @@ -329,25 +329,6 @@ static __inline__ void __DEFAULT_FN_ATTRS __stosq(unsigned __int64 *__dst,
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));
return ret;
}

static inline unsigned short _inpw(unsigned short port) {
unsigned short ret;
__asm__ volatile("inw %w1, %w0" : "=a"(ret) : "Nd"(port));
return ret;
}

static inline unsigned long _inpd(unsigned short port) {
unsigned long ret;
__asm__ volatile("inl %w1, %k0" : "=a"(ret) : "Nd"(port));
return ret;
}

#endif

#if defined(__i386__) || defined(__x86_64__) || defined(__aarch64__)
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25 changes: 0 additions & 25 deletions clang/test/CodeGen/X86/ms-x86-intrinsics.c
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Expand Up @@ -63,31 +63,6 @@ unsigned __int64 test__emulu(unsigned int a, unsigned int b) {
// CHECK: [[RES:%[0-9]+]] = mul nuw i64 [[Y]], [[X]]
// CHECK: ret i64 [[RES]]


int test_inp(unsigned short port) {
return _inp(port);
}
// CHECK-LABEL: i32 @test_inp(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]]

unsigned short test_inpw(unsigned short port) {
return _inpw(port);
}
// CHECK-LABEL: i16 @test_inpw(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);
}
// CHECK-LABEL: i32 @test_inpd(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]]

#if defined(__x86_64__)

char test__readgsbyte(unsigned long Offset) {
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