[llvm-commits] [llvm] r129047 - in /llvm/trunk: lib/Target/ARM/Disassembler/ARMDisassemblerCore.cpp test/MC/Disassembler/ARM/neon-tests.txt

[Johnny Chen]

Author: johnny
Date: Wed Apr  6 20:05:52 2011
New Revision: 129047

URL: http://llvm.org/viewvc/llvm-project?rev=129047&view=rev
Log:
The ARM disassembler was not recognizing USADA8 instruction.  Need to add checking for register values
for USAD8 and USADA8.

rdar://problem/9247060

Modified:
    llvm/trunk/lib/Target/ARM/Disassembler/ARMDisassemblerCore.cpp
    llvm/trunk/test/MC/Disassembler/ARM/neon-tests.txt

Modified: llvm/trunk/lib/Target/ARM/Disassembler/ARMDisassemblerCore.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/Disassembler/ARMDisassemblerCore.cpp?rev=129047&r1=129046&r2=129047&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/Disassembler/ARMDisassemblerCore.cpp (original)
+++ llvm/trunk/lib/Target/ARM/Disassembler/ARMDisassemblerCore.cpp Wed Apr  6 20:05:52 2011
@@ -536,7 +536,7 @@
     return false;
   case ARM::MLA:     case ARM::MLS:     case ARM::SMLABB:  case ARM::SMLABT:
   case ARM::SMLATB:  case ARM::SMLATT:  case ARM::SMLAWB:  case ARM::SMLAWT:
-  case ARM::SMMLA:   case ARM::SMMLS:
+  case ARM::SMMLA:   case ARM::SMMLS:   case ARM::USADA8:
     if (R19_16 == 15 || R15_12 == 15 || R11_8 == 15 || R3_0 == 15)
       return true;
     return false;
@@ -545,6 +545,7 @@
   case ARM::SMUAD:   case ARM::SMUADX:
   // A8.6.167 SMLAD & A8.6.172 SMLSD
   case ARM::SMLAD:   case ARM::SMLADX:  case ARM::SMLSD:   case ARM::SMLSDX:
+  case ARM::USAD8:
     if (R19_16 == 15 || R11_8 == 15 || R3_0 == 15)
       return true;
     return false;
@@ -562,12 +563,13 @@
 
 // Multiply Instructions.
 // MLA, MLS, SMLABB, SMLABT, SMLATB, SMLATT, SMLAWB, SMLAWT, SMMLA, SMMLS,
-// SMLAD, SMLADX, SMLSD, SMLSDX:
+// SMLAD, SMLADX, SMLSD, SMLSDX, USADA8 (for convenience):
 //     Rd{19-16} Rn{3-0} Rm{11-8} Ra{15-12}
 // But note that register checking for {SMLAD, SMLADX, SMLSD, SMLSDX} is
 // only for {d, n, m}.
 //
-// MUL, SMMUL, SMULBB, SMULBT, SMULTB, SMULTT, SMULWB, SMULWT, SMUAD, SMUADX:
+// MUL, SMMUL, SMULBB, SMULBT, SMULTB, SMULTT, SMULWB, SMULWT, SMUAD, SMUADX,
+// USAD8 (for convenience):
 //     Rd{19-16} Rn{3-0} Rm{11-8}
 //
 // SMLAL, SMULL, UMAAL, UMLAL, UMULL, SMLALBB, SMLALBT, SMLALTB, SMLALTT,

Modified: llvm/trunk/test/MC/Disassembler/ARM/neon-tests.txt
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/Disassembler/ARM/neon-tests.txt?rev=129047&r1=129046&r2=129047&view=diff
==============================================================================
--- llvm/trunk/test/MC/Disassembler/ARM/neon-tests.txt (original)
+++ llvm/trunk/test/MC/Disassembler/ARM/neon-tests.txt Wed Apr  6 20:05:52 2011
@@ -77,3 +77,6 @@
 
 # CHECK:	vmov	r1, r0, d11
 0x1b 0x1b 0x50 0xec
+
+# CHECK:	usada8mi	r8, r9, r5, r9
+0x19 0x95 0x88 0x47