Encoding of destination fixup for ARM branch and conditional branch
instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118801 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMAsmBackend.cpp b/lib/Target/ARM/ARMAsmBackend.cpp
index be3c711..54cd1ae 100644
--- a/lib/Target/ARM/ARMAsmBackend.cpp
+++ b/lib/Target/ARM/ARMAsmBackend.cpp
@@ -138,12 +138,13 @@
}
};
-static unsigned getFixupKindLog2Size(unsigned Kind) {
+static unsigned getFixupKindNumBytes(unsigned Kind) {
switch (Kind) {
default: llvm_unreachable("Unknown fixup kind!");
- case FK_Data_4: return 2;
+ case FK_Data_4: return 4;
case ARM::fixup_arm_pcrel_12: return 2;
case ARM::fixup_arm_vfp_pcrel_12: return 1;
+ case ARM::fixup_arm_branch: return 3;
}
}
@@ -156,16 +157,17 @@
case ARM::fixup_arm_pcrel_12:
// ARM PC-relative values are offset by 8.
return Value - 8;
+ case ARM::fixup_arm_branch:
case ARM::fixup_arm_vfp_pcrel_12:
- // The VFP ld/st immediate value doesn't encode the low two bits since
- // they're always zero. Offset by 8 just as above.
+ // These values don't encode the low two bits since they're always zero.
+ // Offset by 8 just as above.
return (Value - 8) >> 2;
}
}
void DarwinARMAsmBackend::ApplyFixup(const MCFixup &Fixup, MCDataFragment &DF,
- uint64_t Value) const {
- unsigned NumBytes = getFixupKindLog2Size(Fixup.getKind());
+ uint64_t Value) const {
+ unsigned NumBytes = getFixupKindNumBytes(Fixup.getKind());
Value = adjustFixupValue(Fixup.getKind(), Value);
assert(Fixup.getOffset() + NumBytes <= DF.getContents().size() &&