[llvm] r183914 - ARM: fix B decoding

[Amaury de la Vieuville]

Author: amaury.dlv
Date: Thu Jun 13 11:41:55 2013
New Revision: 183914

URL: http://llvm.org/viewvc/llvm-project?rev=183914&view=rev
Log:
ARM: fix B decoding

Modified:
    llvm/trunk/lib/Target/ARM/Disassembler/ARMDisassembler.cpp
    llvm/trunk/test/MC/Disassembler/ARM/thumb2.txt

Modified: llvm/trunk/lib/Target/ARM/Disassembler/ARMDisassembler.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/Disassembler/ARMDisassembler.cpp?rev=183914&r1=183913&r2=183914&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/Disassembler/ARMDisassembler.cpp (original)
+++ llvm/trunk/lib/Target/ARM/Disassembler/ARMDisassembler.cpp Thu Jun 13 11:41:55 2013
@@ -2104,7 +2104,7 @@ DecodeT2BInstruction(MCInst &Inst, unsig
   unsigned imm10 = fieldFromInstruction(Insn, 16, 10);
   unsigned imm11 = fieldFromInstruction(Insn, 0, 11);
   unsigned tmp = (S << 23) | (I1 << 22) | (I2 << 21) | (imm10 << 11) | imm11;
-  int imm32 = SignExtend32<24>(tmp << 1);
+  int imm32 = SignExtend32<25>(tmp << 1);
   if (!tryAddingSymbolicOperand(Address, Address + imm32 + 4,
                                 true, 4, Inst, Decoder))
     Inst.addOperand(MCOperand::CreateImm(imm32));

Modified: llvm/trunk/test/MC/Disassembler/ARM/thumb2.txt
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/Disassembler/ARM/thumb2.txt?rev=183914&r1=183913&r2=183914&view=diff
==============================================================================
--- llvm/trunk/test/MC/Disassembler/ARM/thumb2.txt (original)
+++ llvm/trunk/test/MC/Disassembler/ARM/thumb2.txt Thu Jun 13 11:41:55 2013
@@ -170,8 +170,10 @@
 0x13 0xf5 0xce 0xa9
 
 # CHECK: b.w   #208962
+# CHECK: b.w   #-16777216
 
 0x33 0xf0 0x21 0xb8 # rdar://12585795
+0x00 0xf4 0x00 0x90
 
 #------------------------------------------------------------------------------
 # BFC