[llvm-commits] [llvm] r42230 - /llvm/trunk/docs/ExtendingLLVM.html

[Bill Wendling]

Author: void
Date: Sat Sep 22 05:07:00 2007
New Revision: 42230

URL: http://llvm.org/viewvc/llvm-project?rev=42230&view=rev
Log:
Validation fixes

Modified:
    llvm/trunk/docs/ExtendingLLVM.html

Modified: llvm/trunk/docs/ExtendingLLVM.html
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/docs/ExtendingLLVM.html?rev=42230&r1=42229&r2=42230&view=diff

==============================================================================
--- llvm/trunk/docs/ExtendingLLVM.html (original)
+++ llvm/trunk/docs/ExtendingLLVM.html Sat Sep 22 05:07:00 2007
@@ -107,19 +107,17 @@
 <dt>Add support to the C backend in <tt>lib/Target/CBackend/</tt></dt>
 
 <dd>Depending on the intrinsic, there are a few ways to implement this.  For
-most intrinsics, it makes sense to add code to lower your intrinsic in 
-<tt>LowerIntrinsicCall</tt> in <tt>lib/CodeGen/IntrinsicLowering.cpp</tt>.
-Second, if it makes sense to lower the intrinsic to an expanded sequence of C 
-code in all cases, just emit the expansion in <tt>visitCallInst</tt> in
-<tt>Writer.cpp</tt>.  If the intrinsic has some way to express it with GCC 
-(or any other compiler) extensions, it can be conditionally supported based on 
-the compiler compiling the CBE output (see <tt>llvm.prefetch</tt> for an 
-example).  
-Third, if the intrinsic really has no way to be lowered, just have the code 
-generator emit code that prints an error message and calls abort if executed.
-</dd>
+    most intrinsics, it makes sense to add code to lower your intrinsic in
+    <tt>LowerIntrinsicCall</tt> in <tt>lib/CodeGen/IntrinsicLowering.cpp</tt>.
+    Second, if it makes sense to lower the intrinsic to an expanded sequence of
+    C code in all cases, just emit the expansion in <tt>visitCallInst</tt> in
+    <tt>Writer.cpp</tt>.  If the intrinsic has some way to express it with GCC
+    (or any other compiler) extensions, it can be conditionally supported based
+    on the compiler compiling the CBE output (see <tt>llvm.prefetch</tt> for an
+    example).  Third, if the intrinsic really has no way to be lowered, just
+    have the code generator emit code that prints an error message and calls
+    abort if executed.</dd>
 
-<dl>
 <dt>Add support to the .td file for the target(s) of your choice in 
    <tt>lib/Target/*/*.td</tt>.</dt>
 
@@ -127,6 +125,7 @@
     the intrinsic, though it may obviously require adding the instructions you
     want to generate as well.  There are lots of examples in the PowerPC and X86
     backend to follow.</dd>
+</dl>
 
 </div>