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 <a name="M32R_002fD-Options"></a>
 <div class="header">
 <p>
 Next: <a href="M680x0-Options.html#M680x0-Options" accesskey="n" rel="next">M680x0 Options</a>, Previous: <a href="M32C-Options.html#M32C-Options" accesskey="p" rel="prev">M32C Options</a>, Up: <a href="Submodel-Options.html#Submodel-Options" accesskey="u" rel="up">Submodel Options</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p>
 </div>
 <hr>
 <a name="M32R_002fD-Options-1"></a>
 <h4 class="subsection">3.17.22 M32R/D Options</h4>
 <a name="index-M32R_002fD-options"></a>

 <p>These <samp>-m</samp> options are defined for Renesas M32R/D architectures:
 </p>
 <dl compact="compact">
 <dt><code>-m32r2</code></dt>
 <dd><a name="index-m32r2"></a>
 <p>Generate code for the M32R/2.
 </p>
 </dd>
 <dt><code>-m32rx</code></dt>
 <dd><a name="index-m32rx"></a>
 <p>Generate code for the M32R/X.
 </p>
 </dd>
 <dt><code>-m32r</code></dt>
 <dd><a name="index-m32r"></a>
 <p>Generate code for the M32R.  This is the default.
 </p>
 </dd>
 <dt><code>-mmodel=small</code></dt>
 <dd><a name="index-mmodel_003dsmall"></a>
 <p>Assume all objects live in the lower 16MB of memory (so that their addresses
 can be loaded with the <code>ld24</code> instruction), and assume all subroutines
 are reachable with the <code>bl</code> instruction.
 This is the default.
 </p>
 <p>The addressability of a particular object can be set with the
 <code>model</code> attribute.
 </p>
 </dd>
 <dt><code>-mmodel=medium</code></dt>
 <dd><a name="index-mmodel_003dmedium"></a>
 <p>Assume objects may be anywhere in the 32-bit address space (the compiler
 generates <code>seth/add3</code> instructions to load their addresses), and
 assume all subroutines are reachable with the <code>bl</code> instruction.
 </p>
 </dd>
 <dt><code>-mmodel=large</code></dt>
 <dd><a name="index-mmodel_003dlarge"></a>
 <p>Assume objects may be anywhere in the 32-bit address space (the compiler
 generates <code>seth/add3</code> instructions to load their addresses), and
 assume subroutines may not be reachable with the <code>bl</code> instruction
 (the compiler generates the much slower <code>seth/add3/jl</code>
 instruction sequence).
 </p>
 </dd>
 <dt><code>-msdata=none</code></dt>
 <dd><a name="index-msdata_003dnone-1"></a>
 <p>Disable use of the small data area.  Variables are put into
 one of &lsquo;<samp>.data</samp>&rsquo;, &lsquo;<samp>.bss</samp>&rsquo;, or &lsquo;<samp>.rodata</samp>&rsquo; (unless the
 <code>section</code> attribute has been specified).
 This is the default.
 </p>
 <p>The small data area consists of sections &lsquo;<samp>.sdata</samp>&rsquo; and &lsquo;<samp>.sbss</samp>&rsquo;.
 Objects may be explicitly put in the small data area with the
 <code>section</code> attribute using one of these sections.
 </p>
 </dd>
 <dt><code>-msdata=sdata</code></dt>
 <dd><a name="index-msdata_003dsdata"></a>
 <p>Put small global and static data in the small data area, but do not
 generate special code to reference them.
 </p>
 </dd>
 <dt><code>-msdata=use</code></dt>
 <dd><a name="index-msdata_003duse"></a>
 <p>Put small global and static data in the small data area, and generate
 special instructions to reference them.
 </p>
 </dd>
 <dt><code>-G <var>num</var></code></dt>
 <dd><a name="index-G"></a>
 <a name="index-smaller-data-references"></a>
 <p>Put global and static objects less than or equal to <var>num</var> bytes
 into the small data or BSS sections instead of the normal data or BSS
 sections.  The default value of <var>num</var> is 8.
 The <samp>-msdata</samp> option must be set to one of &lsquo;<samp>sdata</samp>&rsquo; or &lsquo;<samp>use</samp>&rsquo;
 for this option to have any effect.
 </p>
 <p>All modules should be compiled with the same <samp>-G <var>num</var></samp> value.
 Compiling with different values of <var>num</var> may or may not work; if it
 doesn&rsquo;t the linker gives an error message&mdash;incorrect code is not
 generated.
 </p>
 </dd>
 <dt><code>-mdebug</code></dt>
 <dd><a name="index-mdebug"></a>
 <p>Makes the M32R-specific code in the compiler display some statistics
 that might help in debugging programs.
 </p>
 </dd>
 <dt><code>-malign-loops</code></dt>
 <dd><a name="index-malign_002dloops"></a>
 <p>Align all loops to a 32-byte boundary.
 </p>
 </dd>
 <dt><code>-mno-align-loops</code></dt>
 <dd><a name="index-mno_002dalign_002dloops"></a>
 <p>Do not enforce a 32-byte alignment for loops.  This is the default.
 </p>
 </dd>
 <dt><code>-missue-rate=<var>number</var></code></dt>
 <dd><a name="index-missue_002drate_003dnumber"></a>
 <p>Issue <var>number</var> instructions per cycle.  <var>number</var> can only be 1
 or 2.
 </p>
 </dd>
 <dt><code>-mbranch-cost=<var>number</var></code></dt>
 <dd><a name="index-mbranch_002dcost_003dnumber"></a>
 <p><var>number</var> can only be 1 or 2.  If it is 1 then branches are
 preferred over conditional code, if it is 2, then the opposite applies.
 </p>
 </dd>
 <dt><code>-mflush-trap=<var>number</var></code></dt>
 <dd><a name="index-mflush_002dtrap_003dnumber"></a>
 <p>Specifies the trap number to use to flush the cache.  The default is
 12.  Valid numbers are between 0 and 15 inclusive.
 </p>
 </dd>
 <dt><code>-mno-flush-trap</code></dt>
 <dd><a name="index-mno_002dflush_002dtrap"></a>
 <p>Specifies that the cache cannot be flushed by using a trap.
 </p>
 </dd>
 <dt><code>-mflush-func=<var>name</var></code></dt>
 <dd><a name="index-mflush_002dfunc_003dname"></a>
 <p>Specifies the name of the operating system function to call to flush
 the cache.  The default is <em>_flush_cache</em>, but a function call
 is only used if a trap is not available.
 </p>
 </dd>
 <dt><code>-mno-flush-func</code></dt>
 <dd><a name="index-mno_002dflush_002dfunc"></a>
 <p>Indicates that there is no OS function for flushing the cache.
 </p>
 </dd>
 </dl>

 <hr>
 <div class="header">
 <p>
 Next: <a href="M680x0-Options.html#M680x0-Options" accesskey="n" rel="next">M680x0 Options</a>, Previous: <a href="M32C-Options.html#M32C-Options" accesskey="p" rel="prev">M32C Options</a>, Up: <a href="Submodel-Options.html#Submodel-Options" accesskey="u" rel="up">Submodel Options</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p>
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	<a name="M32R_002fD-Options"></a>
	<div class="header">
	<p>
	Next: <a href="M680x0-Options.html#M680x0-Options" accesskey="n" rel="next">M680x0 Options</a>, Previous: <a href="M32C-Options.html#M32C-Options" accesskey="p" rel="prev">M32C Options</a>, Up: <a href="Submodel-Options.html#Submodel-Options" accesskey="u" rel="up">Submodel Options</a>   [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p>
	</div>
	<hr>
	<a name="M32R_002fD-Options-1"></a>
	<h4 class="subsection">3.17.22 M32R/D Options</h4>
	<a name="index-M32R_002fD-options"></a>

	<p>These <samp>-m</samp> options are defined for Renesas M32R/D architectures:
	</p>
	<dl compact="compact">
	<dt><code>-m32r2</code></dt>
	<dd><a name="index-m32r2"></a>
	<p>Generate code for the M32R/2.
	</p>
	</dd>
	<dt><code>-m32rx</code></dt>
	<dd><a name="index-m32rx"></a>
	<p>Generate code for the M32R/X.
	</p>
	</dd>
	<dt><code>-m32r</code></dt>
	<dd><a name="index-m32r"></a>
	<p>Generate code for the M32R. This is the default.
	</p>
	</dd>
	<dt><code>-mmodel=small</code></dt>
	<dd><a name="index-mmodel_003dsmall"></a>
	<p>Assume all objects live in the lower 16MB of memory (so that their addresses
	can be loaded with the <code>ld24</code> instruction), and assume all subroutines
	are reachable with the <code>bl</code> instruction.
	This is the default.
	</p>
	<p>The addressability of a particular object can be set with the
	<code>model</code> attribute.
	</p>
	</dd>
	<dt><code>-mmodel=medium</code></dt>
	<dd><a name="index-mmodel_003dmedium"></a>
	<p>Assume objects may be anywhere in the 32-bit address space (the compiler
	generates <code>seth/add3</code> instructions to load their addresses), and
	assume all subroutines are reachable with the <code>bl</code> instruction.
	</p>
	</dd>
	<dt><code>-mmodel=large</code></dt>
	<dd><a name="index-mmodel_003dlarge"></a>
	<p>Assume objects may be anywhere in the 32-bit address space (the compiler
	generates <code>seth/add3</code> instructions to load their addresses), and
	assume subroutines may not be reachable with the <code>bl</code> instruction
	(the compiler generates the much slower <code>seth/add3/jl</code>
	instruction sequence).
	</p>
	</dd>
	<dt><code>-msdata=none</code></dt>
	<dd><a name="index-msdata_003dnone-1"></a>
	<p>Disable use of the small data area. Variables are put into
	one of ‘<samp>.data</samp>’, ‘<samp>.bss</samp>’, or ‘<samp>.rodata</samp>’ (unless the
	<code>section</code> attribute has been specified).
	This is the default.
	</p>
	<p>The small data area consists of sections ‘<samp>.sdata</samp>’ and ‘<samp>.sbss</samp>’.
	Objects may be explicitly put in the small data area with the
	<code>section</code> attribute using one of these sections.
	</p>
	</dd>
	<dt><code>-msdata=sdata</code></dt>
	<dd><a name="index-msdata_003dsdata"></a>
	<p>Put small global and static data in the small data area, but do not
	generate special code to reference them.
	</p>
	</dd>
	<dt><code>-msdata=use</code></dt>
	<dd><a name="index-msdata_003duse"></a>
	<p>Put small global and static data in the small data area, and generate
	special instructions to reference them.
	</p>
	</dd>
	<dt><code>-G <var>num</var></code></dt>
	<dd><a name="index-G"></a>
	<a name="index-smaller-data-references"></a>
	<p>Put global and static objects less than or equal to <var>num</var> bytes
	into the small data or BSS sections instead of the normal data or BSS
	sections. The default value of <var>num</var> is 8.
	The <samp>-msdata</samp> option must be set to one of ‘<samp>sdata</samp>’ or ‘<samp>use</samp>’
	for this option to have any effect.
	</p>
	<p>All modules should be compiled with the same <samp>-G <var>num</var></samp> value.
	Compiling with different values of <var>num</var> may or may not work; if it
	doesn’t the linker gives an error message—incorrect code is not
	generated.
	</p>
	</dd>
	<dt><code>-mdebug</code></dt>
	<dd><a name="index-mdebug"></a>
	<p>Makes the M32R-specific code in the compiler display some statistics
	that might help in debugging programs.
	</p>
	</dd>
	<dt><code>-malign-loops</code></dt>
	<dd><a name="index-malign_002dloops"></a>
	<p>Align all loops to a 32-byte boundary.
	</p>
	</dd>
	<dt><code>-mno-align-loops</code></dt>
	<dd><a name="index-mno_002dalign_002dloops"></a>
	<p>Do not enforce a 32-byte alignment for loops. This is the default.
	</p>
	</dd>
	<dt><code>-missue-rate=<var>number</var></code></dt>
	<dd><a name="index-missue_002drate_003dnumber"></a>
	<p>Issue <var>number</var> instructions per cycle. <var>number</var> can only be 1
	or 2.
	</p>
	</dd>
	<dt><code>-mbranch-cost=<var>number</var></code></dt>
	<dd><a name="index-mbranch_002dcost_003dnumber"></a>
	<p><var>number</var> can only be 1 or 2. If it is 1 then branches are
	preferred over conditional code, if it is 2, then the opposite applies.
	</p>
	</dd>
	<dt><code>-mflush-trap=<var>number</var></code></dt>
	<dd><a name="index-mflush_002dtrap_003dnumber"></a>
	<p>Specifies the trap number to use to flush the cache. The default is
	12. Valid numbers are between 0 and 15 inclusive.
	</p>
	</dd>
	<dt><code>-mno-flush-trap</code></dt>
	<dd><a name="index-mno_002dflush_002dtrap"></a>
	<p>Specifies that the cache cannot be flushed by using a trap.
	</p>
	</dd>
	<dt><code>-mflush-func=<var>name</var></code></dt>
	<dd><a name="index-mflush_002dfunc_003dname"></a>
	<p>Specifies the name of the operating system function to call to flush
	the cache. The default is <em>_flush_cache</em>, but a function call
	is only used if a trap is not available.
	</p>
	</dd>
	<dt><code>-mno-flush-func</code></dt>
	<dd><a name="index-mno_002dflush_002dfunc"></a>
	<p>Indicates that there is no OS function for flushing the cache.
	</p>
	</dd>
	</dl>

	<hr>
	<div class="header">
	<p>
	Next: <a href="M680x0-Options.html#M680x0-Options" accesskey="n" rel="next">M680x0 Options</a>, Previous: <a href="M32C-Options.html#M32C-Options" accesskey="p" rel="prev">M32C Options</a>, Up: <a href="Submodel-Options.html#Submodel-Options" accesskey="u" rel="up">Submodel Options</a>   [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p>
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