diff options
Diffstat (limited to 'lib/CodeGen/SimpleRegisterCoalescing.cpp')
| -rw-r--r-- | lib/CodeGen/SimpleRegisterCoalescing.cpp | 19 |
1 files changed, 2 insertions, 17 deletions
diff --git a/lib/CodeGen/SimpleRegisterCoalescing.cpp b/lib/CodeGen/SimpleRegisterCoalescing.cpp index 430df54081..f8784f60f5 100644 --- a/lib/CodeGen/SimpleRegisterCoalescing.cpp +++ b/lib/CodeGen/SimpleRegisterCoalescing.cpp @@ -1861,21 +1861,6 @@ bool SimpleRegisterCoalescing::RangeIsDefinedByCopyFromReg(LiveInterval &li, return false; } - -/// ValueLiveAt - Return true if the LiveRange pointed to by the given -/// iterator, or any subsequent range with the same value number, -/// is live at the given point. -bool SimpleRegisterCoalescing::ValueLiveAt(LiveInterval::iterator LRItr, - LiveIndex defPoint) const { - for (const VNInfo *valno = LRItr->valno; LRItr->valno == valno; ++LRItr) { - if (LRItr->contains(defPoint)) - return true; - } - - return false; -} - - /// SimpleJoin - Attempt to joint the specified interval into this one. The /// caller of this method must guarantee that the RHS only contains a single /// value number and that the RHS is not defined by a copy from this @@ -1922,7 +1907,7 @@ bool SimpleRegisterCoalescing::SimpleJoin(LiveInterval &LHS, LiveInterval &RHS){ if (!RangeIsDefinedByCopyFromReg(LHS, LHSIt, RHS.reg)) return false; // Nope, bail out. - if (ValueLiveAt(LHSIt, RHSIt->valno->def)) + if (LHSIt->contains(RHSIt->valno->def)) // Here is an interesting situation: // BB1: // vr1025 = copy vr1024 @@ -1960,7 +1945,7 @@ bool SimpleRegisterCoalescing::SimpleJoin(LiveInterval &LHS, LiveInterval &RHS){ // Otherwise, if this is a copy from the RHS, mark it as being merged // in. if (RangeIsDefinedByCopyFromReg(LHS, LHSIt, RHS.reg)) { - if (ValueLiveAt(LHSIt, RHSIt->valno->def)) + if (LHSIt->contains(RHSIt->valno->def)) // Here is an interesting situation: // BB1: // vr1025 = copy vr1024 |