diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/ARM64/ARM64TargetTransformInfo.cpp | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/llvm/lib/Target/ARM64/ARM64TargetTransformInfo.cpp b/llvm/lib/Target/ARM64/ARM64TargetTransformInfo.cpp index f12d1be81a1..cc8cc806ec7 100644 --- a/llvm/lib/Target/ARM64/ARM64TargetTransformInfo.cpp +++ b/llvm/lib/Target/ARM64/ARM64TargetTransformInfo.cpp @@ -154,7 +154,7 @@ unsigned ARM64TTI::getIntImmCost(const APInt &Imm, Type *Ty) const { assert(Ty->isIntegerTy()); unsigned BitSize = Ty->getPrimitiveSizeInBits(); - if (BitSize == 0 || BitSize > 128) + if (BitSize == 0) return ~0U; // Sign-extend all constants to a multiple of 64-bit. @@ -179,8 +179,10 @@ unsigned ARM64TTI::getIntImmCost(unsigned Opcode, unsigned Idx, assert(Ty->isIntegerTy()); unsigned BitSize = Ty->getPrimitiveSizeInBits(); - if (BitSize == 0 || BitSize > 128) - return ~0U; + // There is no cost model for constants with a bit size of 0. Return TCC_Free + // here, so that constant hoisting will ignore this constant. + if (BitSize == 0) + return TCC_Free; unsigned ImmIdx = ~0U; switch (Opcode) { @@ -238,8 +240,10 @@ unsigned ARM64TTI::getIntImmCost(Intrinsic::ID IID, unsigned Idx, assert(Ty->isIntegerTy()); unsigned BitSize = Ty->getPrimitiveSizeInBits(); - if (BitSize == 0 || BitSize > 128) - return ~0U; + // There is no cost model for constants with a bit size of 0. Return TCC_Free + // here, so that constant hoisting will ignore this constant. + if (BitSize == 0) + return TCC_Free; switch (IID) { default: |
