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Add intrinsic of MULX in BMI2 header

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llvm-svn: 165325
This commit is contained in:
Michael Liao 2012-10-05 18:50:09 +00:00
parent 8f06e7dea4
commit 4a7f8c23e0
2 changed files with 36 additions and 0 deletions
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19
clang/lib/Headers/bmi2intrin.h
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@ -70,6 +70,25 @@ _pext_u64(unsigned long long __X, unsigned long long __Y)
return __builtin_ia32_pext_di(__X, __Y);
}
static __inline__ unsigned long long __attribute__((__always_inline__, __nodebug__))
_mulx_u64 (unsigned long long __X, unsigned long long __Y,
unsigned long long *__P)
{
unsigned __int128 __res = (unsigned __int128) __X * __Y;
*__P = (unsigned long long) (__res >> 64);
return (unsigned long long) __res;
}
#else /* !__x86_64__ */
static __inline__ unsigned int __attribute__((__always_inline__, __nodebug__))
_mulx_u32 (unsigned int __X, unsigned int __Y, unsigned int *__P)
{
unsigned long long __res = (unsigned long long) __X * __Y;
*__P = (unsigned int) (__res >> 32);
return (unsigned int) __res;
}
#endif /* !__x86_64__ */
#endif /* __BMI2INTRIN_H */

17
clang/test/CodeGen/bmi2-builtins.c
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@ -1,4 +1,5 @@
// RUN: %clang_cc1 %s -O3 -triple=x86_64-apple-darwin -target-feature +bmi2 -emit-llvm -o - | FileCheck %s
// RUN: %clang_cc1 %s -O3 -triple=i386-apple-darwin -target-feature +bmi2 -emit-llvm -o - | FileCheck %s --check-prefix=B32
// Don't include mm_malloc.h, it's system specific.
#define __MM_MALLOC_H
@ -20,6 +21,15 @@ unsigned int test_pext_u32(unsigned int __X, unsigned int __Y) {
return _pext_u32(__X, __Y);
}
unsigned int test_mulx_u32(unsigned int __X, unsigned int __Y,
unsigned int *__P) {
// CHECK: @test_mulx_u32
// CHECK-NOT: mul i64
// B32: @test_mulx_u32
// B32: mul i64
return _mulx_u32(__X, __Y, __P);
}
unsigned long long test_bzhi_u64(unsigned long long __X, unsigned long long __Y) {
// CHECK: @llvm.x86.bmi.bzhi.64
return _bzhi_u64(__X, __Y);
@ -34,3 +44,10 @@ unsigned long long test_pext_u64(unsigned long long __X, unsigned long long __Y)
// CHECK: @llvm.x86.bmi.pext.64
return _pext_u64(__X, __Y);
}
unsigned long long test_mulx_u64(unsigned long long __X, unsigned long long __Y,
unsigned long long *__P) {
// CHECK: @test_mulx_u64
// CHECK: mul i128
return _mulx_u64(__X, __Y, __P);
}