Re-apply "InstrProf: Add unit tests for the profile reader and writer"

[oota-llvm.git] / docs / CodeGenerator.rst

diff --git a/docs/CodeGenerator.rst b/docs/CodeGenerator.rst
index facedc32a4f7f8bf7dba0459623a10f7176c447e..7e5b6eb76392ac7374cc0f809dc7aca7a32ce849 100644 (file)
--- a/docs/CodeGenerator.rst
+++ b/docs/CodeGenerator.rst
@@ -290,10 +290,10 @@ the opcode, the number of operands, the list of implicit register uses and defs,
 whether the instruction has certain target-independent properties (accesses
 memory, is commutable, etc), and holds any target-specific flags.
 
-The ``TargetFrameInfo`` class
------------------------------
+The ``TargetFrameLowering`` class
+---------------------------------
 
-The ``TargetFrameInfo`` class is used to provide information about the stack
+The ``TargetFrameLowering`` class is used to provide information about the stack
 frame layout of the target. It holds the direction of stack growth, the known
 stack alignment on entry to each function, and the offset to the local area.
 The offset to the local area is the offset from the stack pointer on function
@@ -464,7 +464,7 @@ code:
   mov %EAX, %EDX
   sar %EDX, 31
   idiv %ECX
-  ret 
+  ret
 
 This approach is extremely general (if it can handle the X86 architecture, it
 can handle anything!) and allows all of the target specific knowledge about the
@@ -848,6 +848,10 @@ is based on the final SelectionDAG, with nodes that must be scheduled together
 bundled into a single scheduling-unit node, and with immediate operands and
 other nodes that aren't relevant for scheduling omitted.
 
+The option ``-filter-view-dags`` allows to select the name of the basic block
+that you are interested to visualize and filters all the previous
+``view-*-dags`` options.
+
 .. _Build initial DAG:
 
 Initial SelectionDAG Construction