Support the "target" encodings for the CB[N]Z instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121308 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMAsmBackend.cpp b/lib/Target/ARM/ARMAsmBackend.cpp
index 51191c7..1754870 100644
--- a/lib/Target/ARM/ARMAsmBackend.cpp
+++ b/lib/Target/ARM/ARMAsmBackend.cpp
@@ -145,6 +145,11 @@
// 'off by 4' is implicitly handled by the half-word ordering of the
// Thumb encoding, so we only need to adjust by 2 here.
return ((Value - 2) >> 2) & 0xff;
+ case ARM::fixup_arm_thumb_br: {
+ // Offset by 4 and don't encode the lower bit, which is always 0.
+ uint32_t Binary = (Value - 4) >> 1;
+ return ((Binary & 0x20) << 9) | ((Binary & 0x1f) << 3);
+ }
case ARM::fixup_arm_pcrel_10:
Value = Value - 6; // ARM fixups offset by an additional word and don't
// need to adjust for the half-word ordering.
@@ -258,6 +263,9 @@
case ARM::fixup_arm_thumb_cp:
return 1;
+ case ARM::fixup_arm_thumb_br:
+ return 2;
+
case ARM::fixup_arm_ldst_pcrel_12:
case ARM::fixup_arm_pcrel_10:
case ARM::fixup_arm_adr_pcrel_12: