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Compiler-specific Features
4.7.12 __fabsf
This intrinsic is a single-precision version of the __fabs intrinsic. It is functionally
equivalent to __fabs, except that:
• it takes an argument of type float instead of an argument of type double
• it returns a float value instead of a double value.
See also
• __fabs on page 4-83
• V{Q}ABS and V{Q}NEG on page 5-56 in the Assembler Guide.
4.7.13 __force_stores
This intrinsic causes all variables that are visible outside the current function, such as
variables that have pointers to them passed into or out of the function, to be written back
to memory if they have been changed.
This intrinsic also acts as a scheduling barrier.
Syntax
void __force_stores(void)
See also
• __memory_changed on page 4-88
• __schedule_barrier on page 4-96.
4.7.14 __ldrex
This intrinsic inserts an instruction of the form LDREX[size] into the instruction stream
generated by the compiler. It enables you to load data from memory in your C or C++
code using an LDREX instruction. size in LDREX[size] is B for byte stores or H for halfword
stores. If no size is specified, word stores are performed.
Syntax
unsigned int __ldrex(volatile void *ptr)
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