diff options
| -rw-r--r-- | lib/Target/ARM/MCTargetDesc/ARMAsmBackend.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/Target/ARM/MCTargetDesc/ARMAsmBackend.cpp b/lib/Target/ARM/MCTargetDesc/ARMAsmBackend.cpp index adedc208d0..2a8f7c6dc4 100644 --- a/lib/Target/ARM/MCTargetDesc/ARMAsmBackend.cpp +++ b/lib/Target/ARM/MCTargetDesc/ARMAsmBackend.cpp @@ -180,8 +180,10 @@ bool ARMAsmBackend::fixupNeedsRelaxation(const MCFixup &Fixup, return Offset > 254 || Offset < -256; } case ARM::fixup_arm_thumb_cp: { + // If the immediate is negative, greater than 1020, or not a multiple + // of four, the wide version of the instruction must be used. int64_t Offset = int64_t(Value) - 4; - return Offset > 4095 || Offset < 0; + return Offset > 1020 || Offset < 0 || Offset & 3; } } llvm_unreachable("Invalid switch/cash!?"); |