[cleanup] Remove dead {CommuteCondition} helper.

R=sigurds@chromium.org

Change-Id: Ib024d099946d4351bfce9de8eb61be1dba5e1ce5
Reviewed-on: https://chromium-review.googlesource.com/1186415
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55351}

src/arm/constants-arm.h

@@ -105,31 +105,6 @@ inline Condition NegateCondition(Condition cond) {
 }
 
 
-// Commute a condition such that {a cond b == b cond' a}.
-inline Condition CommuteCondition(Condition cond) {
-  switch (cond) {
-    case lo:
-      return hi;
-    case hi:
-      return lo;
-    case hs:
-      return ls;
-    case ls:
-      return hs;
-    case lt:
-      return gt;
-    case gt:
-      return lt;
-    case ge:
-      return le;
-    case le:
-      return ge;
-    default:
-      return cond;
-  }
-}
-
-
 // -----------------------------------------------------------------------------
 // Instructions encoding.
 

src/arm64/constants-arm64.h

@@ -329,35 +329,6 @@ inline Condition NegateCondition(Condition cond) {
   return static_cast<Condition>(cond ^ 1);
 }
 
-// Commute a condition such that {a cond b == b cond' a}.
-inline Condition CommuteCondition(Condition cond) {
-  switch (cond) {
-    case lo:
-      return hi;
-    case hi:
-      return lo;
-    case hs:
-      return ls;
-    case ls:
-      return hs;
-    case lt:
-      return gt;
-    case gt:
-      return lt;
-    case ge:
-      return le;
-    case le:
-      return ge;
-    case eq:
-      return eq;
-    default:
-      // In practice this function is only used with a condition coming from
-      // binary operations. Any other condition is invalid as it doesn't
-      // necessary make sense to reverse it (consider 'mi' for instance).
-      UNREACHABLE();
-  }
-}
-
 enum FlagsUpdate {
   SetFlags   = 1,
   LeaveFlags = 0

src/ia32/assembler-ia32.h

@@ -198,31 +198,6 @@ inline Condition NegateCondition(Condition cc) {
 }
 
 
-// Commute a condition such that {a cond b == b cond' a}.
-inline Condition CommuteCondition(Condition cc) {
-  switch (cc) {
-    case below:
-      return above;
-    case above:
-      return below;
-    case above_equal:
-      return below_equal;
-    case below_equal:
-      return above_equal;
-    case less:
-      return greater;
-    case greater:
-      return less;
-    case greater_equal:
-      return less_equal;
-    case less_equal:
-      return greater_equal;
-    default:
-      return cc;
-  }
-}
-
-
 enum RoundingMode {
   kRoundToNearest = 0x0,
   kRoundDown = 0x1,

src/mips/constants-mips.h

@@ -1120,30 +1120,6 @@ enum MSABranchDF {
   MSA_BRANCH_V
 };
 
-// Commute a condition such that {a cond b == b cond' a}.
-inline Condition CommuteCondition(Condition cc) {
-  switch (cc) {
-    case Uless:
-      return Ugreater;
-    case Ugreater:
-      return Uless;
-    case Ugreater_equal:
-      return Uless_equal;
-    case Uless_equal:
-      return Ugreater_equal;
-    case less:
-      return greater;
-    case greater:
-      return less;
-    case greater_equal:
-      return less_equal;
-    case less_equal:
-      return greater_equal;
-    default:
-      return cc;
-  }
-}
-
 
 // ----- Coprocessor conditions.
 enum FPUCondition {

src/mips64/constants-mips64.h

@@ -1154,30 +1154,6 @@ enum MSABranchDF {
   MSA_BRANCH_V
 };
 
-// Commute a condition such that {a cond b == b cond' a}.
-inline Condition CommuteCondition(Condition cc) {
-  switch (cc) {
-    case Uless:
-      return Ugreater;
-    case Ugreater:
-      return Uless;
-    case Ugreater_equal:
-      return Uless_equal;
-    case Uless_equal:
-      return Ugreater_equal;
-    case less:
-      return greater;
-    case greater:
-      return less;
-    case greater_equal:
-      return less_equal;
-    case less_equal:
-      return greater_equal;
-    default:
-      return cc;
-  }
-}
-
 
 // ----- Coprocessor conditions.
 enum FPUCondition {

src/ppc/constants-ppc.h

@@ -88,22 +88,6 @@ inline Condition NegateCondition(Condition cond) {
 }
 
 
-// Commute a condition such that {a cond b == b cond' a}.
-inline Condition CommuteCondition(Condition cond) {
-  switch (cond) {
-    case lt:
-      return gt;
-    case gt:
-      return lt;
-    case ge:
-      return le;
-    case le:
-      return ge;
-    default:
-      return cond;
-  }
-}
-
 // -----------------------------------------------------------------------------
 // Instructions encoding.
 

src/s390/constants-s390.h

@@ -141,27 +141,6 @@ inline Condition NegateCondition(Condition cond) {
   return al;
 }
 
-// Commute a condition such that {a cond b == b cond' a}.
-inline Condition CommuteCondition(Condition cond) {
-  switch (cond) {
-    case lt:
-      return gt;
-    case gt:
-      return lt;
-    case ge:
-      return le;
-    case le:
-      return ge;
-    case eq:
-      return eq;
-    case ne:
-      return ne;
-    default:
-      DCHECK(false);
-      return cond;
-  }
-}
-
 // -----------------------------------------------------------------------------
 // Instructions encoding.
 

src/x64/assembler-x64.h

@@ -267,31 +267,6 @@ inline Condition NegateCondition(Condition cc) {
 }
 
 
-// Commute a condition such that {a cond b == b cond' a}.
-inline Condition CommuteCondition(Condition cc) {
-  switch (cc) {
-    case below:
-      return above;
-    case above:
-      return below;
-    case above_equal:
-      return below_equal;
-    case below_equal:
-      return above_equal;
-    case less:
-      return greater;
-    case greater:
-      return less;
-    case greater_equal:
-      return less_equal;
-    case less_equal:
-      return greater_equal;
-    default:
-      return cc;
-  }
-}
-
-
 enum RoundingMode {
   kRoundToNearest = 0x0,
   kRoundDown = 0x1,