commit a7ad9f3932b4576815b35d599b75fe4fa3a7611f
author Eli Friedman <eli.friedman@gmail.com> Thu Oct 13 23:36:06 2011 +0000
committer Eli Friedman <eli.friedman@gmail.com> Thu Oct 13 23:36:06 2011 +0000
tree 26ed02cb5f56f5182379d059fcb7eceb7f17be3e
parent 31ce793a0bab8f6f7b99a2763cb27eaf40e3ceb9

Fix undefined shift.  Patch by Ahmed Charles.

llvm-svn: 141914

llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp

diff --git a/llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp b/llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp
index 702a794..2c30353 100644
--- a/llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp
+++ b/llvm/lib/Target/ARM/Disassembler/ARMDisassembler.cpp
@@ -1011,7 +1011,7 @@
                                uint64_t Address, const void *Decoder) {
   uint32_t imm = Val & 0xFF;
   uint32_t rot = (Val & 0xF00) >> 7;
-  uint32_t rot_imm = (imm >> rot) | (imm << (32-rot));
+  uint32_t rot_imm = (imm >> rot) | (imm << ((32-rot) & 0x1F));
   Inst.addOperand(MCOperand::CreateImm(rot_imm));
   return MCDisassembler::Success;
 }