RealView Compilation Tools Compiler Reference Guide - ARM ...

Compiler-specific Features
4.6.20 #pragma [no_]softfp_linkage
This pragma controls software floating-point linkage.
#pragma softfp_linkage asserts that all function declarations up to the next #pragma
no_softfp_linkage describe functions that use software floating-point linkage.
Note
This pragma has the keyword equivalent __softfp.
Usage
This pragma can be useful when applied to an entire interface specification, located in
the header file, without altering that file.
Default
The default is #pragma no_softfp_linkage.
See also
• __softfp on page 4-15
• Floating-point linkage on page 4-33 in the Compiler User Guide.
4.6.21 #pragma unroll [(n)]
This pragma instructs the compiler to unroll a loop by n interations.
Note
Both vectorized and non vectorized loops can be unrolled using #pragma unroll [(n)].
That is, #pragma unroll [(n)] applies to both --vectorize and --no_vectorize.
Syntax
#pragma unroll
#pragma unroll (n)
Where:
n
is an optional value indicating the number of iterations to unroll.
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