RegisterPressure: Remove support for recede()/advance() at MBB boundaries

[oota-llvm.git] / include / llvm / CodeGen / ISDOpcodes.h

diff --git a/include/llvm/CodeGen/ISDOpcodes.h b/include/llvm/CodeGen/ISDOpcodes.h
index 90e4432b8fb655b7bd986d4bfb024abb41876461..aaf08e14f57d7c0267a625e5e08456b37227f575 100644 (file)
--- a/include/llvm/CodeGen/ISDOpcodes.h
+++ b/include/llvm/CodeGen/ISDOpcodes.h
@@ -336,7 +336,7 @@ namespace ISD {
     SHL, SRA, SRL, ROTL, ROTR,
 
     /// Byte Swap and Counting operators.
-    BSWAP, CTTZ, CTLZ, CTPOP,
+    BSWAP, CTTZ, CTLZ, CTPOP, BITREVERSE,
 
     /// [SU]ABSDIFF - Signed/Unsigned absolute difference of two input integer
     /// vector. These nodes are generated from llvm.*absdiff* intrinsics.
@@ -372,9 +372,14 @@ namespace ISD {
     /// then the result type must also be a vector type.
     SETCC,
 
+    /// Like SetCC, ops #0 and #1 are the LHS and RHS operands to compare, but
+    /// op #2 is a *carry value*. This operator checks the result of
+    /// "LHS - RHS - Carry", and can be used to compare two wide integers:
+    /// (setcce lhshi rhshi (subc lhslo rhslo) cc). Only valid for integers.
+    SETCCE,
+
     /// SHL_PARTS/SRA_PARTS/SRL_PARTS - These operators are used for expanded
-    /// integer shift operations, just like ADD/SUB_PARTS.  The operation
-    /// ordering is:
+    /// integer shift operations.  The operation ordering is:
     ///       [Lo,Hi] = op [LoLHS,HiLHS], Amt
     SHL_PARTS, SRA_PARTS, SRL_PARTS,
 
@@ -591,8 +596,16 @@ namespace ISD {
     /// take a chain as input and return a chain.
     EH_LABEL,
 
+    /// CATCHPAD - Represents a catchpad instruction.
+    CATCHPAD,
+
+    /// CATCHRET - Represents a return from a catch block funclet. Used for
+    /// MSVC compatible exception handling. Takes a chain operand and a
+    /// destination basic block operand.
     CATCHRET,
 
+    /// CLEANUPRET - Represents a return from a cleanup block funclet.  Used for
+    /// MSVC compatible exception handling. Takes only a chain operand.
     CLEANUPRET,
 
     /// STACKSAVE - STACKSAVE has one operand, an input chain.  It produces a
@@ -638,9 +651,11 @@ namespace ISD {
     PCMARKER,
 
     /// READCYCLECOUNTER - This corresponds to the readcyclecounter intrinsic.
-    /// The only operand is a chain and a value and a chain are produced.  The
-    /// value is the contents of the architecture specific cycle counter like
-    /// register (or other high accuracy low latency clock source)
+    /// It produces a chain and one i64 value. The only operand is a chain.
+    /// If i64 is not legal, the result will be expanded into smaller values.
+    /// Still, it returns an i64, so targets should set legality for i64.
+    /// The result is the content of the architecture-specific cycle
+    /// counter-like register (or other high accuracy low latency clock source).
     READCYCLECOUNTER,
 
     /// HANDLENODE node - Used as a handle for various purposes.