V.2.00 and Later Versions (Compatibility with Versions between 1.00 and 1.02)

11.4.2 V.2.00 and Later Versions (Compatibility with Versions between 1.00 and 1.02)

(1)	Restriction That Applies to Operation of the Linkage Editor When the -merge_files Option of the Compiler Has been Used

When an object module file created by the compiler with the -merge_files option specified is to be linked, correct operation is not guaranteed if the -delete, -rename, or -replace option is specified.

(2)	Note on Generation of Code That Corresponds to if Statements When optimize=0

In this version of this compiler, if statements where the conditional expression has a constant value and statements that will accordingly never be executed are not reflected in the output code whether or not optimize=0 is specified.

In the examples below, lines marked [Deleted] are not reflected at the time of code generation.

Examples 1.

Expression that produces a constant value

int a,b,c;

void func01(void)

    if (1+2) {   /* [Deleted] */

        /* Executed */

        a = b;

    } else {

        /* Never executed */

        a++;     /* [Deleted] */

        b = c;   /* [Deleted] */

Examples 2.

Constant expressions that include symbolic addresses are also treated as constant expressions.

void f1(void),f2(void);

void func02(void)

    if (f1==0) {  /* [Deleted] */

        /* Never executed */

        f2();     /* [Deleted] */

    } else {

        /* Executed */

        f1();

(3)	Differences in Assembly Source Code Output by -show=source

There are the following differences in the assembly source code to be output by this version of this compiler when -show=source is specified.

-	.LINE is not displayed unless -debug has been specified.

-	#include statements are not expanded.

-	The instruction that corresponds to source code that follows #line may be incorrect.