Update llvm and clang to release_38 branch r261684.

2 files changed, 11 insertions, 5 deletions

diff --git a/contrib/llvm/tools/clang/lib/CodeGen/TargetInfo.cpp b/contrib/llvm/tools/clang/lib/CodeGen/TargetInfo.cpp
index cdb325f..3d1ddef 100644
--- a/contrib/llvm/tools/clang/lib/CodeGen/TargetInfo.cpp
+++ b/contrib/llvm/tools/clang/lib/CodeGen/TargetInfo.cpp
@@ -3475,6 +3475,7 @@ public:
 
 Address PPC32_SVR4_ABIInfo::EmitVAArg(CodeGenFunction &CGF, Address VAList,
                                       QualType Ty) const {
+  const unsigned OverflowLimit = 8;
   if (const ComplexType *CTy = Ty->getAs<ComplexType>()) {
     // TODO: Implement this. For now ignore.
     (void)CTy;
@@ -3517,7 +3518,7 @@ Address PPC32_SVR4_ABIInfo::EmitVAArg(CodeGenFunction &CGF, Address VAList,
   }
 
   llvm::Value *CC =
-      Builder.CreateICmpULT(NumRegs, Builder.getInt8(8), "cond");
+      Builder.CreateICmpULT(NumRegs, Builder.getInt8(OverflowLimit), "cond");
 
   llvm::BasicBlock *UsingRegs = CGF.createBasicBlock("using_regs");
   llvm::BasicBlock *UsingOverflow = CGF.createBasicBlock("using_overflow");
@@ -3569,6 +3570,8 @@ Address PPC32_SVR4_ABIInfo::EmitVAArg(CodeGenFunction &CGF, Address VAList,
   {
     CGF.EmitBlock(UsingOverflow);
 
+    Builder.CreateStore(Builder.getInt8(OverflowLimit), NumRegsAddr);
+
     // Everything in the overflow area is rounded up to a size of at least 4.
     CharUnits OverflowAreaAlign = CharUnits::fromQuantity(4);
 
diff --git a/contrib/llvm/tools/clang/lib/Sema/SemaExpr.cpp b/contrib/llvm/tools/clang/lib/Sema/SemaExpr.cpp
index ebf7981..5a2eb60 100644
--- a/contrib/llvm/tools/clang/lib/Sema/SemaExpr.cpp
+++ b/contrib/llvm/tools/clang/lib/Sema/SemaExpr.cpp
@@ -1365,10 +1365,13 @@ Sema::CreateGenericSelectionExpr(SourceLocation KeyLoc,
 
   // Decay and strip qualifiers for the controlling expression type, and handle
   // placeholder type replacement. See committee discussion from WG14 DR423.
-  ExprResult R = DefaultFunctionArrayLvalueConversion(ControllingExpr);
-  if (R.isInvalid())
-    return ExprError();
-  ControllingExpr = R.get();
+  {
+    EnterExpressionEvaluationContext Unevaluated(*this, Sema::Unevaluated);
+    ExprResult R = DefaultFunctionArrayLvalueConversion(ControllingExpr);
+    if (R.isInvalid())
+      return ExprError();
+    ControllingExpr = R.get();
+  }
 
   // The controlling expression is an unevaluated operand, so side effects are
   // likely unintended.