diff options
| -rw-r--r-- | lib/Target/CBackend/CBackend.cpp | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/Target/CBackend/CBackend.cpp b/lib/Target/CBackend/CBackend.cpp index 7b5ab6effe..c3554f6b57 100644 --- a/lib/Target/CBackend/CBackend.cpp +++ b/lib/Target/CBackend/CBackend.cpp @@ -1454,6 +1454,17 @@ std::string CWriter::GetValueName(const Value *Operand) { /// writeInstComputationInline - Emit the computation for the specified /// instruction inline, with no destination provided. void CWriter::writeInstComputationInline(Instruction &I) { + // We can't currently support integer types other than 1, 8, 16, 32, 64. + // Validate this. + const Type *Ty = I.getType(); + if (Ty->isInteger() && (Ty!=Type::Int1Ty && Ty!=Type::Int8Ty && + Ty!=Type::Int16Ty && Ty!=Type::Int32Ty && Ty!=Type::Int64Ty)) { + cerr << "The C backend does not currently support integer " + << "types of widths other than 1, 8, 16, 32, 64.\n"; + cerr << "This is being tracked as PR 4158.\n"; + abort(); + } + // If this is a non-trivial bool computation, make sure to truncate down to // a 1 bit value. This is important because we want "add i1 x, y" to return // "0" when x and y are true, not "2" for example. |