Zap the last two -Wself-assign warnings in llvm.

Simplify RALinScan::DowngradeRegister with TRI::getOverlaps while we are there.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122940 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 5 insertions, 8 deletions

diff --git a/lib/CodeGen/RegAllocLinearScan.cpp b/lib/CodeGen/RegAllocLinearScan.cpp
index b18f62be00..bbff424710 100644
--- a/lib/CodeGen/RegAllocLinearScan.cpp
+++ b/lib/CodeGen/RegAllocLinearScan.cpp
@@ -933,13 +933,9 @@ LiveInterval *RALinScan::hasNextReloadInterval(LiveInterval *cur) {
 }
 
 void RALinScan::DowngradeRegister(LiveInterval *li, unsigned Reg) {
-  bool isNew = DowngradedRegs.insert(Reg);
-  (void)isNew; // Silence compiler warning.
-  assert(isNew && "Multiple reloads holding the same register?");
-  DowngradeMap.insert(std::make_pair(li->reg, Reg));
-  for (const unsigned *AS = tri_->getAliasSet(Reg); *AS; ++AS) {
-    isNew = DowngradedRegs.insert(*AS);
-    isNew = isNew; // Silence compiler warning.
+  for (const unsigned *AS = tri_->getOverlaps(Reg); *AS; ++AS) {
+    bool isNew = DowngradedRegs.insert(*AS);
+    (void)isNew; // Silence compiler warning.
     assert(isNew && "Multiple reloads holding the same register?");
     DowngradeMap.insert(std::make_pair(li->reg, *AS));
   }
diff --git a/lib/Transforms/Scalar/SimplifyHalfPowrLibCalls.cpp b/lib/Transforms/Scalar/SimplifyHalfPowrLibCalls.cpp
index 87c9d63d58..70ff32e023 100644
--- a/lib/Transforms/Scalar/SimplifyHalfPowrLibCalls.cpp
+++ b/lib/Transforms/Scalar/SimplifyHalfPowrLibCalls.cpp
@@ -97,7 +97,8 @@ InlineHalfPowrs(const std::vector<Instruction *> &HalfPowrs,
 
     InlineFunctionInfo IFI(0, TD);
     bool B = InlineFunction(Call, IFI);
-    assert(B && "half_powr didn't inline?"); B=B;
+    assert(B && "half_powr didn't inline?");
+    (void)B;
 
     BasicBlock *NewBody = NewBlock->getSinglePredecessor();
     assert(NewBody);