[llvm-commits] CVS: llvm/lib/Target/PowerPC/PPC32ISelPattern.cpp

[Chris Lattner]

Changes in directory llvm/lib/Target/PowerPC:

PPC32ISelPattern.cpp updated: 1.111 -> 1.112
---
Log message:

This hunk accidentally got dropped.  Patch by Jim Laskey


---
Diffs of the changes:  (+0 -67)

 PPC32ISelPattern.cpp |   67 ---------------------------------------------------
 1 files changed, 67 deletions(-)


Index: llvm/lib/Target/PowerPC/PPC32ISelPattern.cpp
diff -u llvm/lib/Target/PowerPC/PPC32ISelPattern.cpp:1.111 llvm/lib/Target/PowerPC/PPC32ISelPattern.cpp:1.112
--- llvm/lib/Target/PowerPC/PPC32ISelPattern.cpp:1.111	Tue Aug  2 14:25:03 2005
+++ llvm/lib/Target/PowerPC/PPC32ISelPattern.cpp	Tue Aug  2 14:30:55 2005
@@ -601,73 +601,6 @@
   } 
 };
 
-/// ExactLog2 - This function solves for (Val == 1 << (N-1)) and returns N.  It
-/// returns zero when the input is not exactly a power of two.
-static unsigned ExactLog2(unsigned Val) {
-  if (Val == 0 || (Val & (Val-1))) return 0;
-  unsigned Count = 0;
-  while (Val != 1) {
-    Val >>= 1;
-    ++Count;
-  }
-  return Count;
-}
-
-// IsRunOfOnes - returns true if Val consists of one contiguous run of 1's with
-// any number of 0's on either side.  the 1's are allowed to wrap from LSB to
-// MSB.  so 0x000FFF0, 0x0000FFFF, and 0xFF0000FF are all runs.  0x0F0F0000 is
-// not, since all 1's are not contiguous.
-static bool IsRunOfOnes(unsigned Val, unsigned &MB, unsigned &ME) {
-  bool isRun = true;
-  MB = 0;
-  ME = 0;
-
-  // look for first set bit
-  int i = 0;
-  for (; i < 32; i++) {
-    if ((Val & (1 << (31 - i))) != 0) {
-      MB = i;
-      ME = i;
-      break;
-    }
-  }
-
-  // look for last set bit
-  for (; i < 32; i++) {
-    if ((Val & (1 << (31 - i))) == 0)
-      break;
-    ME = i;
-  }
-
-  // look for next set bit
-  for (; i < 32; i++) {
-    if ((Val & (1 << (31 - i))) != 0)
-      break;
-  }
-
-  // if we exhausted all the bits, we found a match at this point for 0*1*0*
-  if (i == 32)
-    return true;
-
-  // since we just encountered more 1's, if it doesn't wrap around to the
-  // most significant bit of the word, then we did not find a match to 1*0*1* so
-  // exit.
-  if (MB != 0)
-    return false;
-
-  // look for last set bit
-  for (MB = i; i < 32; i++) {
-    if ((Val & (1 << (31 - i))) == 0)
-      break;
-  }
-
-  // if we exhausted all the bits, then we found a match for 1*0*1*, otherwise,
-  // the value is not a run of ones.
-  if (i == 32)
-    return true;
-  return false;
-}
-
 /// getImmediateForOpcode - This method returns a value indicating whether
 /// the ConstantSDNode N can be used as an immediate to Opcode.  The return
 /// values are either 0, 1 or 2.  0 indicates that either N is not a