diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/FastISel.cpp | 15 | ||||
| -rw-r--r-- | lib/Target/ARM/ARMFastISel.cpp | 9 | ||||
| -rw-r--r-- | lib/Target/PowerPC/PPCFastISel.cpp | 9 | ||||
| -rw-r--r-- | lib/Target/X86/X86FastISel.cpp | 9 |
4 files changed, 21 insertions, 21 deletions
diff --git a/lib/CodeGen/SelectionDAG/FastISel.cpp b/lib/CodeGen/SelectionDAG/FastISel.cpp index fb798c1..a6f7461 100644 --- a/lib/CodeGen/SelectionDAG/FastISel.cpp +++ b/lib/CodeGen/SelectionDAG/FastISel.cpp @@ -1571,4 +1571,19 @@ bool FastISel::tryToFoldLoad(const LoadInst *LI, const Instruction *FoldInst) { return tryToFoldLoadIntoMI(User, RI.getOperandNo(), LI); } +bool FastISel::canFoldAddIntoGEP(const User *GEP, const Value *Add) { + // Must be an add. + if (!isa<AddOperator>(Add)) + return false; + // Type size needs to match. + if (TD.getTypeSizeInBits(GEP->getType()) != + TD.getTypeSizeInBits(Add->getType())) + return false; + // Must be in the same basic block. + if (isa<Instruction>(Add) && + FuncInfo.MBBMap[cast<Instruction>(Add)->getParent()] != FuncInfo.MBB) + return false; + // Must have a constant operand. + return isa<ConstantInt>(cast<AddOperator>(Add)->getOperand(1)); +} diff --git a/lib/Target/ARM/ARMFastISel.cpp b/lib/Target/ARM/ARMFastISel.cpp index f3a74c7..a4004f3 100644 --- a/lib/Target/ARM/ARMFastISel.cpp +++ b/lib/Target/ARM/ARMFastISel.cpp @@ -900,13 +900,8 @@ bool ARMFastISel::ARMComputeAddress(const Value *Obj, Address &Addr) { TmpOffset += CI->getSExtValue() * S; break; } - if (isa<AddOperator>(Op) && - (!isa<Instruction>(Op) || - FuncInfo.MBBMap[cast<Instruction>(Op)->getParent()] - == FuncInfo.MBB) && - isa<ConstantInt>(cast<AddOperator>(Op)->getOperand(1))) { - // An add (in the same block) with a constant operand. Fold the - // constant. + if (canFoldAddIntoGEP(U, Op)) { + // A compatible add with a constant operand. Fold the constant. ConstantInt *CI = cast<ConstantInt>(cast<AddOperator>(Op)->getOperand(1)); TmpOffset += CI->getSExtValue() * S; diff --git a/lib/Target/PowerPC/PPCFastISel.cpp b/lib/Target/PowerPC/PPCFastISel.cpp index 4f8e6c1..09117e7 100644 --- a/lib/Target/PowerPC/PPCFastISel.cpp +++ b/lib/Target/PowerPC/PPCFastISel.cpp @@ -336,13 +336,8 @@ bool PPCFastISel::PPCComputeAddress(const Value *Obj, Address &Addr) { TmpOffset += CI->getSExtValue() * S; break; } - if (isa<AddOperator>(Op) && - (!isa<Instruction>(Op) || - FuncInfo.MBBMap[cast<Instruction>(Op)->getParent()] - == FuncInfo.MBB) && - isa<ConstantInt>(cast<AddOperator>(Op)->getOperand(1))) { - // An add (in the same block) with a constant operand. Fold the - // constant. + if (canFoldAddIntoGEP(U, Op)) { + // A compatible add with a constant operand. Fold the constant. ConstantInt *CI = cast<ConstantInt>(cast<AddOperator>(Op)->getOperand(1)); TmpOffset += CI->getSExtValue() * S; diff --git a/lib/Target/X86/X86FastISel.cpp b/lib/Target/X86/X86FastISel.cpp index 928dea9..97f96ab 100644 --- a/lib/Target/X86/X86FastISel.cpp +++ b/lib/Target/X86/X86FastISel.cpp @@ -561,13 +561,8 @@ redo_gep: Disp += CI->getSExtValue() * S; break; } - if (isa<AddOperator>(Op) && - (!isa<Instruction>(Op) || - FuncInfo.MBBMap[cast<Instruction>(Op)->getParent()] - == FuncInfo.MBB) && - isa<ConstantInt>(cast<AddOperator>(Op)->getOperand(1))) { - // An add (in the same block) with a constant operand. Fold the - // constant. + if (canFoldAddIntoGEP(U, Op)) { + // A compatible add with a constant operand. Fold the constant. ConstantInt *CI = cast<ConstantInt>(cast<AddOperator>(Op)->getOperand(1)); Disp += CI->getSExtValue() * S; |