diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/AArch64/AArch64FastISel.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/llvm/lib/Target/AArch64/AArch64FastISel.cpp b/llvm/lib/Target/AArch64/AArch64FastISel.cpp index 5527213c89d..01b2dee2612 100644 --- a/llvm/lib/Target/AArch64/AArch64FastISel.cpp +++ b/llvm/lib/Target/AArch64/AArch64FastISel.cpp @@ -1084,7 +1084,7 @@ unsigned AArch64FastISel::emitAddSub(bool UseAdd, MVT RetVT, const Value *LHS, RetVT.SimpleTy = std::max(RetVT.SimpleTy, MVT::i32); // Canonicalize immediates to the RHS first. - if (UseAdd && isa<ConstantInt>(LHS) && !isa<ConstantInt>(RHS)) + if (UseAdd && isa<Constant>(LHS) && !isa<Constant>(RHS)) std::swap(LHS, RHS); // Canonicalize mul by power of 2 to the RHS. @@ -1118,7 +1118,11 @@ unsigned AArch64FastISel::emitAddSub(bool UseAdd, MVT RetVT, const Value *LHS, else ResultReg = emitAddSub_ri(UseAdd, RetVT, LHSReg, LHSIsKill, Imm, SetFlags, WantResult); - } + } else if (const auto *C = dyn_cast<Constant>(RHS)) + if (C->isNullValue()) + ResultReg = emitAddSub_ri(UseAdd, RetVT, LHSReg, LHSIsKill, 0, SetFlags, + WantResult); + if (ResultReg) return ResultReg; |
