[llvm-commits] [llvm] r163594 - in /llvm/trunk: lib/Target/X86/Disassembler/X86Disassembler.h lib/Target/X86/Disassembler/X86DisassemblerDecoder.h utils/TableGen/X86DisassemblerTables.cpp

[Craig Topper]

Author: ctopper
Date: Mon Sep 10 23:19:21 2012
New Revision: 163594

URL: http://llvm.org/viewvc/llvm-project?rev=163594&view=rev
Log:
Change unsigned to a uint16_t in static disassembler tables to reduce the table size.

Modified:
    llvm/trunk/lib/Target/X86/Disassembler/X86Disassembler.h
    llvm/trunk/lib/Target/X86/Disassembler/X86DisassemblerDecoder.h
    llvm/trunk/utils/TableGen/X86DisassemblerTables.cpp

Modified: llvm/trunk/lib/Target/X86/Disassembler/X86Disassembler.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/Disassembler/X86Disassembler.h?rev=163594&r1=163593&r2=163594&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/Disassembler/X86Disassembler.h (original)
+++ llvm/trunk/lib/Target/X86/Disassembler/X86Disassembler.h Mon Sep 10 23:19:21 2012
@@ -78,7 +78,7 @@
   uint16_t operands;
 
 #define INSTRUCTION_IDS               \
-  unsigned instructionIDs;
+  uint16_t instructionIDs;
 
 #include "X86DisassemblerDecoderCommon.h"
 

Modified: llvm/trunk/lib/Target/X86/Disassembler/X86DisassemblerDecoder.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/Disassembler/X86DisassemblerDecoder.h?rev=163594&r1=163593&r2=163594&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/Disassembler/X86DisassemblerDecoder.h (original)
+++ llvm/trunk/lib/Target/X86/Disassembler/X86DisassemblerDecoder.h Mon Sep 10 23:19:21 2012
@@ -24,7 +24,7 @@
   uint16_t operands;
 
 #define INSTRUCTION_IDS     \
-  unsigned instructionIDs;
+  uint16_t instructionIDs;
 
 #include "X86DisassemblerDecoderCommon.h"
 

Modified: llvm/trunk/utils/TableGen/X86DisassemblerTables.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/utils/TableGen/X86DisassemblerTables.cpp?rev=163594&r1=163593&r2=163594&view=diff
==============================================================================
--- llvm/trunk/utils/TableGen/X86DisassemblerTables.cpp (original)
+++ llvm/trunk/utils/TableGen/X86DisassemblerTables.cpp Mon Sep 10 23:19:21 2012
@@ -366,6 +366,10 @@
       break;
   }
 
+  // We assume that the index can fit into uint16_t.
+  assert(sEntryNumber < 65536U &&
+         "Index into ModRMDecision is too large for uint16_t!");
+
   ++sTableNumber;
 }