diff options
Diffstat (limited to 'llvm/lib/Transforms')
| -rw-r--r-- | llvm/lib/Transforms/LevelRaise.cpp | 24 |
1 files changed, 11 insertions, 13 deletions
diff --git a/llvm/lib/Transforms/LevelRaise.cpp b/llvm/lib/Transforms/LevelRaise.cpp index 19325b065c2..c35b5c67308 100644 --- a/llvm/lib/Transforms/LevelRaise.cpp +++ b/llvm/lib/Transforms/LevelRaise.cpp @@ -51,7 +51,6 @@ static inline bool isReinterpretingCast(const CastInst *CI) { -#if 0 // Unneccesary code, handled by convert exprs // Peephole optimize the following instructions: // %t1 = cast ? to x * // %t2 = add x * %SP, %t1 ;; Constant must be 2nd operand @@ -117,8 +116,7 @@ static bool HandleCastToPointer(BasicBlock::iterator BI, OtherPtr = C; } - GetElementPtrInst *GEP = new GetElementPtrInst(OtherPtr, Indices, - I->getName()); + GetElementPtrInst *GEP = new GetElementPtrInst(OtherPtr, Indices); PRINT_PEEPHOLE1("cast-add-to-gep:i", I); @@ -128,7 +126,6 @@ static bool HandleCastToPointer(BasicBlock::iterator BI, } return true; } -#endif // Peephole optimize the following instructions: // %t1 = cast ulong <const int> to {<...>} * @@ -269,16 +266,17 @@ static bool PeepholeOptimize(BasicBlock *BB, BasicBlock::iterator &BI) { #endif return true; } -#if 0 - // Otherwise find out it this cast is a cast to a pointer type, which is - // then added to some other pointer, then loaded or stored through. If - // so, convert the add into a getelementptr instruction... - // - if (const PointerType *DestPTy = dyn_cast<PointerType>(DestTy)) { - if (HandleCastToPointer(BI, DestPTy)) - return true; + } + + // Otherwise find out it this cast is a cast to a pointer type, which is + // then added to some other pointer, then loaded or stored through. If + // so, convert the add into a getelementptr instruction... + // + if (const PointerType *DestPTy = dyn_cast<PointerType>(DestTy)) { + if (HandleCastToPointer(BI, DestPTy)) { + BI = BB->begin(); // Rescan basic block. BI might be invalidated. + return true; } -#endif } // Check to see if we are casting from a structure pointer to a pointer to |
