This revision was automatically updated to reflect the committed changes.
Closed by commit rL273401: [Clang][bmi][intrinsics] Adding _mm_tzcnt_64
_mm_tzcnt_32 intrinsics to clang. (authored by mzuckerm).
Changed prior to commit:
http://reviews.llvm.org/D21373?vs=61351&id=61536#toc
Repository:
rL LLVM
http://reviews.llvm.org/D21373
Files:
cfe/trunk/lib/Headers/bmiintrin.h
cfe/trunk/test/CodeGen/bmi-builtins.c
Index: cfe/trunk/test/CodeGen/bmi-builtins.c
===================================================================
--- cfe/trunk/test/CodeGen/bmi-builtins.c
+++ cfe/trunk/test/CodeGen/bmi-builtins.c
@@ -64,6 +64,13 @@
return __tzcnt_u32(__X);
}
+int test_mm_tzcnt_32(unsigned int __X) {
+ // CHECK-LABEL: test_mm_tzcnt_32
+ // CHECK: icmp ne i32 %{{.*}}, 0
+ // CHECK: i32 @llvm.cttz.i32(i32 %{{.*}}, i1 true)
+ return _mm_tzcnt_32(__X);
+}
+
unsigned long long test__andn_u64(unsigned long __X, unsigned long __Y) {
// CHECK-LABEL: test__andn_u64
// CHECK: xor i64 %{{.*}}, -1
@@ -105,6 +112,13 @@
return __tzcnt_u64(__X);
}
+long long test_mm_tzcnt_64(unsigned long long __X) {
+ // CHECK-LABEL: test_mm_tzcnt_64
+ // CHECK: icmp ne i64 %{{.*}}, 0
+ // CHECK: i64 @llvm.cttz.i64(i64 %{{.*}}, i1 true)
+ return _mm_tzcnt_64(__X);
+}
+
// Intel intrinsics
unsigned short test_tzcnt_u16(unsigned short __X) {
Index: cfe/trunk/lib/Headers/bmiintrin.h
===================================================================
--- cfe/trunk/lib/Headers/bmiintrin.h
+++ cfe/trunk/lib/Headers/bmiintrin.h
@@ -287,6 +287,22 @@
return __X ? __builtin_ctz(__X) : 32;
}
+/// \brief Counts the number of trailing zero bits in the operand.
+///
+/// \headerfile <x86intrin.h>
+///
+/// This intrinsic corresponds to the \c TZCNT instruction.
+///
+/// \param __X
+/// An unsigned 32-bit integer whose trailing zeros are to be counted.
+/// \returns An 32-bit integer containing the number of trailing zero
+/// bits in the operand.
+static __inline__ int __RELAXED_FN_ATTRS
+_mm_tzcnt_32(unsigned int __X)
+{
+ return __X ? __builtin_ctz(__X) : 32;
+}
+
#ifdef __x86_64__
/// \brief Performs a bitwise AND of the second operand with the one's
@@ -508,6 +524,22 @@
return __X ? __builtin_ctzll(__X) : 64;
}
+/// \brief Counts the number of trailing zero bits in the operand.
+///
+/// \headerfile <x86intrin.h>
+///
+/// This intrinsic corresponds to the \c TZCNT instruction.
+///
+/// \param __X
+/// An unsigned 64-bit integer whose trailing zeros are to be counted.
+/// \returns An 64-bit integer containing the number of trailing zero
+/// bits in the operand.
+static __inline__ long long __RELAXED_FN_ATTRS
+_mm_tzcnt_64(unsigned long long __X)
+{
+ return __X ? __builtin_ctzll(__X) : 64;
+}
+
#endif /* __x86_64__ */
#undef __DEFAULT_FN_ATTRS
Index: cfe/trunk/test/CodeGen/bmi-builtins.c
===================================================================
--- cfe/trunk/test/CodeGen/bmi-builtins.c
+++ cfe/trunk/test/CodeGen/bmi-builtins.c
@@ -64,6 +64,13 @@
return __tzcnt_u32(__X);
}
+int test_mm_tzcnt_32(unsigned int __X) {
+ // CHECK-LABEL: test_mm_tzcnt_32
+ // CHECK: icmp ne i32 %{{.*}}, 0
+ // CHECK: i32 @llvm.cttz.i32(i32 %{{.*}}, i1 true)
+ return _mm_tzcnt_32(__X);
+}
+
unsigned long long test__andn_u64(unsigned long __X, unsigned long __Y) {
// CHECK-LABEL: test__andn_u64
// CHECK: xor i64 %{{.*}}, -1
@@ -105,6 +112,13 @@
return __tzcnt_u64(__X);
}
+long long test_mm_tzcnt_64(unsigned long long __X) {
+ // CHECK-LABEL: test_mm_tzcnt_64
+ // CHECK: icmp ne i64 %{{.*}}, 0
+ // CHECK: i64 @llvm.cttz.i64(i64 %{{.*}}, i1 true)
+ return _mm_tzcnt_64(__X);
+}
+
// Intel intrinsics
unsigned short test_tzcnt_u16(unsigned short __X) {
Index: cfe/trunk/lib/Headers/bmiintrin.h
===================================================================
--- cfe/trunk/lib/Headers/bmiintrin.h
+++ cfe/trunk/lib/Headers/bmiintrin.h
@@ -287,6 +287,22 @@
return __X ? __builtin_ctz(__X) : 32;
}
+/// \brief Counts the number of trailing zero bits in the operand.
+///
+/// \headerfile <x86intrin.h>
+///
+/// This intrinsic corresponds to the \c TZCNT instruction.
+///
+/// \param __X
+/// An unsigned 32-bit integer whose trailing zeros are to be counted.
+/// \returns An 32-bit integer containing the number of trailing zero
+/// bits in the operand.
+static __inline__ int __RELAXED_FN_ATTRS
+_mm_tzcnt_32(unsigned int __X)
+{
+ return __X ? __builtin_ctz(__X) : 32;
+}
+
#ifdef __x86_64__
/// \brief Performs a bitwise AND of the second operand with the one's
@@ -508,6 +524,22 @@
return __X ? __builtin_ctzll(__X) : 64;
}
+/// \brief Counts the number of trailing zero bits in the operand.
+///
+/// \headerfile <x86intrin.h>
+///
+/// This intrinsic corresponds to the \c TZCNT instruction.
+///
+/// \param __X
+/// An unsigned 64-bit integer whose trailing zeros are to be counted.
+/// \returns An 64-bit integer containing the number of trailing zero
+/// bits in the operand.
+static __inline__ long long __RELAXED_FN_ATTRS
+_mm_tzcnt_64(unsigned long long __X)
+{
+ return __X ? __builtin_ctzll(__X) : 64;
+}
+
#endif /* __x86_64__ */
#undef __DEFAULT_FN_ATTRS
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