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<h4 class="subsection">3.17.11 FRV Options</h4>

<p><a name="index-FRV-Options-1214"></a>
     <dl>
<dt><code>-mgpr-32</code><dd><a name="index-mgpr_002d32-1215"></a>
Only use the first 32 general purpose registers.

     <br><dt><code>-mgpr-64</code><dd><a name="index-mgpr_002d64-1216"></a>
Use all 64 general purpose registers.

     <br><dt><code>-mfpr-32</code><dd><a name="index-mfpr_002d32-1217"></a>
Use only the first 32 floating point registers.

     <br><dt><code>-mfpr-64</code><dd><a name="index-mfpr_002d64-1218"></a>
Use all 64 floating point registers

     <br><dt><code>-mhard-float</code><dd><a name="index-mhard_002dfloat-1219"></a>
Use hardware instructions for floating point operations.

     <br><dt><code>-msoft-float</code><dd><a name="index-msoft_002dfloat-1220"></a>
Use library routines for floating point operations.

     <br><dt><code>-malloc-cc</code><dd><a name="index-malloc_002dcc-1221"></a>
Dynamically allocate condition code registers.

     <br><dt><code>-mfixed-cc</code><dd><a name="index-mfixed_002dcc-1222"></a>
Do not try to dynamically allocate condition code registers, only
use <code>icc0</code> and <code>fcc0</code>.

     <br><dt><code>-mdword</code><dd><a name="index-mdword-1223"></a>
Change ABI to use double word insns.

     <br><dt><code>-mno-dword</code><dd><a name="index-mno_002ddword-1224"></a>
Do not use double word instructions.

     <br><dt><code>-mdouble</code><dd><a name="index-mdouble-1225"></a>
Use floating point double instructions.

     <br><dt><code>-mno-double</code><dd><a name="index-mno_002ddouble-1226"></a>
Do not use floating point double instructions.

     <br><dt><code>-mmedia</code><dd><a name="index-mmedia-1227"></a>
Use media instructions.

     <br><dt><code>-mno-media</code><dd><a name="index-mno_002dmedia-1228"></a>
Do not use media instructions.

     <br><dt><code>-mmuladd</code><dd><a name="index-mmuladd-1229"></a>
Use multiply and add/subtract instructions.

     <br><dt><code>-mno-muladd</code><dd><a name="index-mno_002dmuladd-1230"></a>
Do not use multiply and add/subtract instructions.

     <br><dt><code>-mfdpic</code><dd><a name="index-mfdpic-1231"></a>
Select the FDPIC ABI, that uses function descriptors to represent
pointers to functions.  Without any PIC/PIE-related options, it
implies <samp><span class="option">-fPIE</span></samp>.  With <samp><span class="option">-fpic</span></samp> or <samp><span class="option">-fpie</span></samp>, it
assumes GOT entries and small data are within a 12-bit range from the
GOT base address; with <samp><span class="option">-fPIC</span></samp> or <samp><span class="option">-fPIE</span></samp>, GOT offsets
are computed with 32 bits. 
With a &lsquo;<samp><span class="samp">bfin-elf</span></samp>&rsquo; target, this option implies <samp><span class="option">-msim</span></samp>.

     <br><dt><code>-minline-plt</code><dd><a name="index-minline_002dplt-1232"></a>
Enable inlining of PLT entries in function calls to functions that are
not known to bind locally.  It has no effect without <samp><span class="option">-mfdpic</span></samp>. 
It's enabled by default if optimizing for speed and compiling for
shared libraries (i.e., <samp><span class="option">-fPIC</span></samp> or <samp><span class="option">-fpic</span></samp>), or when an
optimization option such as <samp><span class="option">-O3</span></samp> or above is present in the
command line.

     <br><dt><code>-mTLS</code><dd><a name="index-mTLS-1233"></a>
Assume a large TLS segment when generating thread-local code.

     <br><dt><code>-mtls</code><dd><a name="index-mtls-1234"></a>
Do not assume a large TLS segment when generating thread-local code.

     <br><dt><code>-mgprel-ro</code><dd><a name="index-mgprel_002dro-1235"></a>
Enable the use of <code>GPREL</code> relocations in the FDPIC ABI for data
that is known to be in read-only sections.  It's enabled by default,
except for <samp><span class="option">-fpic</span></samp> or <samp><span class="option">-fpie</span></samp>: even though it may help
make the global offset table smaller, it trades 1 instruction for 4. 
With <samp><span class="option">-fPIC</span></samp> or <samp><span class="option">-fPIE</span></samp>, it trades 3 instructions for 4,
one of which may be shared by multiple symbols, and it avoids the need
for a GOT entry for the referenced symbol, so it's more likely to be a
win.  If it is not, <samp><span class="option">-mno-gprel-ro</span></samp> can be used to disable it.

     <br><dt><code>-multilib-library-pic</code><dd><a name="index-multilib_002dlibrary_002dpic-1236"></a>
Link with the (library, not FD) pic libraries.  It's implied by
<samp><span class="option">-mlibrary-pic</span></samp>, as well as by <samp><span class="option">-fPIC</span></samp> and
<samp><span class="option">-fpic</span></samp> without <samp><span class="option">-mfdpic</span></samp>.  You should never have to use
it explicitly.

     <br><dt><code>-mlinked-fp</code><dd><a name="index-mlinked_002dfp-1237"></a>
Follow the EABI requirement of always creating a frame pointer whenever
a stack frame is allocated.  This option is enabled by default and can
be disabled with <samp><span class="option">-mno-linked-fp</span></samp>.

     <br><dt><code>-mlong-calls</code><dd><a name="index-mlong_002dcalls-1238"></a>
Use indirect addressing to call functions outside the current
compilation unit.  This allows the functions to be placed anywhere
within the 32-bit address space.

     <br><dt><code>-malign-labels</code><dd><a name="index-malign_002dlabels-1239"></a>
Try to align labels to an 8-byte boundary by inserting nops into the
previous packet.  This option only has an effect when VLIW packing
is enabled.  It doesn't create new packets; it merely adds nops to
existing ones.

     <br><dt><code>-mlibrary-pic</code><dd><a name="index-mlibrary_002dpic-1240"></a>
Generate position-independent EABI code.

     <br><dt><code>-macc-4</code><dd><a name="index-macc_002d4-1241"></a>
Use only the first four media accumulator registers.

     <br><dt><code>-macc-8</code><dd><a name="index-macc_002d8-1242"></a>
Use all eight media accumulator registers.

     <br><dt><code>-mpack</code><dd><a name="index-mpack-1243"></a>
Pack VLIW instructions.

     <br><dt><code>-mno-pack</code><dd><a name="index-mno_002dpack-1244"></a>
Do not pack VLIW instructions.

     <br><dt><code>-mno-eflags</code><dd><a name="index-mno_002deflags-1245"></a>
Do not mark ABI switches in e_flags.

     <br><dt><code>-mcond-move</code><dd><a name="index-mcond_002dmove-1246"></a>
Enable the use of conditional-move instructions (default).

     <p>This switch is mainly for debugging the compiler and will likely be removed
in a future version.

     <br><dt><code>-mno-cond-move</code><dd><a name="index-mno_002dcond_002dmove-1247"></a>
Disable the use of conditional-move instructions.

     <p>This switch is mainly for debugging the compiler and will likely be removed
in a future version.

     <br><dt><code>-mscc</code><dd><a name="index-mscc-1248"></a>
Enable the use of conditional set instructions (default).

     <p>This switch is mainly for debugging the compiler and will likely be removed
in a future version.

     <br><dt><code>-mno-scc</code><dd><a name="index-mno_002dscc-1249"></a>
Disable the use of conditional set instructions.

     <p>This switch is mainly for debugging the compiler and will likely be removed
in a future version.

     <br><dt><code>-mcond-exec</code><dd><a name="index-mcond_002dexec-1250"></a>
Enable the use of conditional execution (default).

     <p>This switch is mainly for debugging the compiler and will likely be removed
in a future version.

     <br><dt><code>-mno-cond-exec</code><dd><a name="index-mno_002dcond_002dexec-1251"></a>
Disable the use of conditional execution.

     <p>This switch is mainly for debugging the compiler and will likely be removed
in a future version.

     <br><dt><code>-mvliw-branch</code><dd><a name="index-mvliw_002dbranch-1252"></a>
Run a pass to pack branches into VLIW instructions (default).

     <p>This switch is mainly for debugging the compiler and will likely be removed
in a future version.

     <br><dt><code>-mno-vliw-branch</code><dd><a name="index-mno_002dvliw_002dbranch-1253"></a>
Do not run a pass to pack branches into VLIW instructions.

     <p>This switch is mainly for debugging the compiler and will likely be removed
in a future version.

     <br><dt><code>-mmulti-cond-exec</code><dd><a name="index-mmulti_002dcond_002dexec-1254"></a>
Enable optimization of <code>&amp;&amp;</code> and <code>||</code> in conditional execution
(default).

     <p>This switch is mainly for debugging the compiler and will likely be removed
in a future version.

     <br><dt><code>-mno-multi-cond-exec</code><dd><a name="index-mno_002dmulti_002dcond_002dexec-1255"></a>
Disable optimization of <code>&amp;&amp;</code> and <code>||</code> in conditional execution.

     <p>This switch is mainly for debugging the compiler and will likely be removed
in a future version.

     <br><dt><code>-mnested-cond-exec</code><dd><a name="index-mnested_002dcond_002dexec-1256"></a>
Enable nested conditional execution optimizations (default).

     <p>This switch is mainly for debugging the compiler and will likely be removed
in a future version.

     <br><dt><code>-mno-nested-cond-exec</code><dd><a name="index-mno_002dnested_002dcond_002dexec-1257"></a>
Disable nested conditional execution optimizations.

     <p>This switch is mainly for debugging the compiler and will likely be removed
in a future version.

     <br><dt><code>-moptimize-membar</code><dd><a name="index-moptimize_002dmembar-1258"></a>
This switch removes redundant <code>membar</code> instructions from the
compiler generated code.  It is enabled by default.

     <br><dt><code>-mno-optimize-membar</code><dd><a name="index-mno_002doptimize_002dmembar-1259"></a>
This switch disables the automatic removal of redundant <code>membar</code>
instructions from the generated code.

     <br><dt><code>-mtomcat-stats</code><dd><a name="index-mtomcat_002dstats-1260"></a>
Cause gas to print out tomcat statistics.

     <br><dt><code>-mcpu=</code><var>cpu</var><dd><a name="index-mcpu-1261"></a>
Select the processor type for which to generate code.  Possible values are
&lsquo;<samp><span class="samp">frv</span></samp>&rsquo;, &lsquo;<samp><span class="samp">fr550</span></samp>&rsquo;, &lsquo;<samp><span class="samp">tomcat</span></samp>&rsquo;, &lsquo;<samp><span class="samp">fr500</span></samp>&rsquo;, &lsquo;<samp><span class="samp">fr450</span></samp>&rsquo;,
&lsquo;<samp><span class="samp">fr405</span></samp>&rsquo;, &lsquo;<samp><span class="samp">fr400</span></samp>&rsquo;, &lsquo;<samp><span class="samp">fr300</span></samp>&rsquo; and &lsquo;<samp><span class="samp">simple</span></samp>&rsquo;.

 </dl>

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