SimplifyLibCalls: Use default globals address space when building new global strings.

Writing a test for this  transitively exposed a number of places in BuildLibCalls where
we were failing to propagate address spaces properly, which are additionally fixed.

Author: resistor

llvm/include/llvm/Transforms/Utils/BuildLibCalls.h

@@ -247,7 +247,7 @@ namespace llvm {
 
   /// Emit a call to the malloc function.
   Value *emitMalloc(Value *Num, IRBuilderBase &B, const DataLayout &DL,
-                    const TargetLibraryInfo *TLI);
+                    const TargetLibraryInfo *TLI, unsigned AddrSpace);
 
   /// Emit a call to the calloc function.
   Value *emitCalloc(Value *Num, Value *Size, IRBuilderBase &B,
@@ -256,24 +256,27 @@ namespace llvm {
   /// Emit a call to the hot/cold operator new function.
   Value *emitHotColdNew(Value *Num, IRBuilderBase &B,
                         const TargetLibraryInfo *TLI, LibFunc NewFunc,
-                        uint8_t HotCold);
+                        uint8_t HotCold, unsigned AddrSpace);
   Value *emitHotColdNewNoThrow(Value *Num, Value *NoThrow, IRBuilderBase &B,
                                const TargetLibraryInfo *TLI, LibFunc NewFunc,
-                               uint8_t HotCold);
+                               uint8_t HotCold, unsigned AddrSpace);
   Value *emitHotColdNewAligned(Value *Num, Value *Align, IRBuilderBase &B,
                                const TargetLibraryInfo *TLI, LibFunc NewFunc,
-                               uint8_t HotCold);
+                               uint8_t HotCold, unsigned AddrSpace);
   Value *emitHotColdNewAlignedNoThrow(Value *Num, Value *Align, Value *NoThrow,
                                       IRBuilderBase &B,
                                       const TargetLibraryInfo *TLI,
-                                      LibFunc NewFunc, uint8_t HotCold);
+                                      LibFunc NewFunc, uint8_t HotCold,
+                                      unsigned AddrSpace);
   Value *emitHotColdSizeReturningNew(Value *Num, IRBuilderBase &B,
                                      const TargetLibraryInfo *TLI,
-                                     LibFunc NewFunc, uint8_t HotCold);
+                                     LibFunc NewFunc, uint8_t HotCold,
+                                     unsigned AddrSpace);
   Value *emitHotColdSizeReturningNewAligned(Value *Num, Value *Align,
                                             IRBuilderBase &B,
                                             const TargetLibraryInfo *TLI,
-                                            LibFunc NewFunc, uint8_t HotCold);
+                                            LibFunc NewFunc, uint8_t HotCold,
+                                            unsigned AddrSpace);
 }
 
 #endif