Glossary
Glossary-1
arithmetic control (AC)
register
For processors with on-chip floating-point support, the
register that contains the floating-point exception flags,
floating-point exception masks, and rounding-mode bits.
For processors without on-chip floating-point support, the
AC register is implemented as a predefined variable
(
fpem_CA_AC).
basic block
An assembly language sequence of code that has one entry
point and one exit point.
calling convention
The rules that specify the use of registers and the stack for
parameter passing and return values in function calls.
command-option file
DOS command-line file, containing command-line options,
input filenames, and comments, to be specified on the
command line.
common subexpression
elimination (CSE)
Avoid recomputing an expression if the compiler can reuse
a previously computed value of the same expression.
conditional compilation
Compiling only part of the source code, depending on the
preprocessor's evaluation of conditions you specify.
constant folding
Deducing at compile time that the value of an expression is
a constant and using the constant in place of the
expression.
constant propagation
Replacing use of variables known to have a constant value
with the constant value.
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