[llvm-commits] [llvm] r111889 - /llvm/trunk/lib/Target/ARM/ARM.h

[Bill Wendling]

Author: void
Date: Mon Aug 23 20:11:30 2010
New Revision: 111889

URL: http://llvm.org/viewvc/llvm-project?rev=111889&view=rev
Log:
Add comments for what the condition code symbols mean.

Modified:
    llvm/trunk/lib/Target/ARM/ARM.h

Modified: llvm/trunk/lib/Target/ARM/ARM.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARM.h?rev=111889&r1=111888&r2=111889&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARM.h (original)
+++ llvm/trunk/lib/Target/ARM/ARM.h Mon Aug 23 20:11:30 2010
@@ -30,22 +30,22 @@
 namespace ARMCC {
   // The CondCodes constants map directly to the 4-bit encoding of the
   // condition field for predicated instructions.
-  enum CondCodes {
-    EQ,
-    NE,
-    HS,
-    LO,
-    MI,
-    PL,
-    VS,
-    VC,
-    HI,
-    LS,
-    GE,
-    LT,
-    GT,
-    LE,
-    AL
+  enum CondCodes { // Meaning (integer)          Meaning (floating-point)
+    EQ,            // Equal                      Equal
+    NE,            // Not equal                  Not equal, or unordered
+    HS,            // Carry set                  >, ==, or unordered
+    LO,            // Carry clear                Less than
+    MI,            // Minus, negative            Less than
+    PL,            // Plus, positive or zero     >, ==, or unordered
+    VS,            // Overflow                   Unordered
+    VC,            // No overflow                Not unordered
+    HI,            // Unsigned higher            Greater than, or unordered
+    LS,            // Unsigned lower or same     Less than or equal
+    GE,            // Greater than or equal      Greater than or equal
+    LT,            // Less than                  Less than, or unordered
+    GT,            // Greater than               Greater than
+    LE,            // Less than or equal         <, ==, or unordered
+    AL             // Always (unconditional)     Always (unconditional)
   };
 
   inline static CondCodes getOppositeCondition(CondCodes CC) {