The ARM disassembler was confused with the 16-bit tSTMIA instruction.
According to A8.6.189 STM/STMIA/STMEA (Encoding T1), there's only tSTMIA_UPD available.
Ignore tSTMIA for the decoder emitter and add a test case for that.
llvm-svn: 128246
diff --git a/llvm/utils/TableGen/ARMDecoderEmitter.cpp b/llvm/utils/TableGen/ARMDecoderEmitter.cpp
index b174fa9..728e669 100644
--- a/llvm/utils/TableGen/ARMDecoderEmitter.cpp
+++ b/llvm/utils/TableGen/ARMDecoderEmitter.cpp
@@ -1615,6 +1615,11 @@
if (!thumbInstruction(Form))
return false;
+ // A8.6.189 STM / STMIA / STMEA -- Encoding T1
+ // There's only STMIA_UPD for Thumb1.
+ if (Name == "tSTMIA")
+ return false;
+
// On Darwin R9 is call-clobbered. Ignore the non-Darwin counterparts.
if (Name == "tBL" || Name == "tBLXi" || Name == "tBLXr")
return false;