Powerpc Altivec Built-In Functions - Red Hat ENTERPRISE LINUX 4 Manual

Chapter 6. Extensions to the C Language Family
v2sf __builtin_ia32_pfmax (v2sf, v2sf)
v2sf __builtin_ia32_pfmin (v2sf, v2sf)
v2sf __builtin_ia32_pfmul (v2sf, v2sf)
v2sf __builtin_ia32_pfrcp (v2sf)
v2sf __builtin_ia32_pfrcpit1 (v2sf, v2sf)
v2sf __builtin_ia32_pfrcpit2 (v2sf, v2sf)
v2sf __builtin_ia32_pfrsqrt (v2sf)
v2sf __builtin_ia32_pfrsqrtit1 (v2sf, v2sf)
v2sf __builtin_ia32_pfsub (v2sf, v2sf)
v2sf __builtin_ia32_pfsubr (v2sf, v2sf)
v2sf __builtin_ia32_pi2fd (v2si)
v4hi __builtin_ia32_pmulhrw (v4hi, v4hi)
The following built-in functions are available when both
of them generate the machine instruction that is part of the name.
v2si __builtin_ia32_pf2iw (v2sf)
v2sf __builtin_ia32_pfnacc (v2sf, v2sf)
v2sf __builtin_ia32_pfpnacc (v2sf, v2sf)
v2sf __builtin_ia32_pi2fw (v2si)
v2sf __builtin_ia32_pswapdsf (v2sf)
v2si __builtin_ia32_pswapdsi (v2si)

6.46.2. PowerPC AltiVec Built-in Functions

GCC provides an interface for the PowerPC family of processors to access the AltiVec operations
described in Motorola's AltiVec Programming Interface Manual. The interface is made available by
including
altivec.h
following vector types.
vector unsigned char
vector signed char
vector bool char
vector unsigned short
vector signed short
vector bool short
vector pixel
vector unsigned int
vector signed int
vector bool int
vector float
GCC's implementation of the high-level language interface available from C and C++ code differs
from Motorola's documentation in several ways.
A vector constant is a list of constant expressions within curly braces.
•
A vector initializer requires no cast if the vector constant is of the same type as the variable it is
•
initializing.
and using
-maltivec
and
-m3dnow -march=athlon
and
-mabi=altivec
are used. All
. The interface supports the
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