Developer Guide and Reference

Contents

Conversions between Fvec and Ivec

Convert the lower double-precision floating-point value of
A
to a 32-bit integer with truncation.
int F64vec2ToInt(F64vec42 A);
r := (int)A0;
Convert the four floating-point values of
A
to two the two least significant double-precision floating-point values.
F64vec2 F32vec4ToF64vec2(F32vec4 A);
r0 := (double)A0;
r1 := (double)A1;
Convert the two double-precision floating-point values of
A
to two single-precision floating-point values.
F32vec4 F64vec2ToF32vec4(F64vec2 A);
r0 := (float)A0;
r1 := (float)A1;
Convert the signed
int
in
B
to a double-precision floating-point value and pass the upper double-precision value from
A
through to the result.
F64vec2 InttoF64vec2(F64vec2 A, int B);
r0 := (double)B;
r1 := A1;
Convert the lower floating-point value of
A
to a 32-bit integer with truncation.
int F32vec4ToInt(F32vec4 A);
r := (int)A0;
Convert the two lower floating-point values of
A
to two 32-bit integer with truncation, returning the integers in packed form.
Is32vec2 F32vec4ToIs32vec2 (F32vec4 A);
r0 := (int)A0;
r1 := (int)A1;
Convert the 32-bit integer value
B
to a floating-point value; the upper three floating-point values are passed through from
A
.
F32vec4 IntToF32vec4(F32vec4 A, int B);
r0 := (float)B;
r1 := A1;
r2 := A2;
r3 := A3;
Convert the two 32-bit integer values in packed form in
B
to two floating-point values; the upper two floating-point values are passed through from
A
.
F32vec4 Is32vec2ToF32vec4(F32vec4 A, Is32vec2 B);
r0 := (float)B0;
r1 := (float)B1;
r2 := A2;
r3 := A3;

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804