commit 8702c5b7c0b9eba29c7839b62d15f7cc90e14aec
author Craig Topper <craig.topper@gmail.com> Tue Sep 11 04:19:21 2012 +0000
committer Craig Topper <craig.topper@gmail.com> Tue Sep 11 04:19:21 2012 +0000
tree ccf152c6e312e8c4e44692fadc0fea7796734b4a
parent 7419c5fb456f37fc748e4838c8ef8871c472388b

Change unsigned to a uint16_t in static disassembler tables to reduce the table size.

llvm-svn: 163594

llvm/lib/Target/X86/Disassembler/X86Disassembler.h

diff --git a/llvm/lib/Target/X86/Disassembler/X86Disassembler.h b/llvm/lib/Target/X86/Disassembler/X86Disassembler.h
index 0dbfa26..981701f 100644
--- a/llvm/lib/Target/X86/Disassembler/X86Disassembler.h
+++ b/llvm/lib/Target/X86/Disassembler/X86Disassembler.h
@@ -78,7 +78,7 @@
   uint16_t operands;
 
 #define INSTRUCTION_IDS               \
-  unsigned instructionIDs;
+  uint16_t instructionIDs;
 
 #include "X86DisassemblerDecoderCommon.h"
 

llvm/lib/Target/X86/Disassembler/X86DisassemblerDecoder.h

diff --git a/llvm/lib/Target/X86/Disassembler/X86DisassemblerDecoder.h b/llvm/lib/Target/X86/Disassembler/X86DisassemblerDecoder.h
index 05cbb4c..407ead3 100644
--- a/llvm/lib/Target/X86/Disassembler/X86DisassemblerDecoder.h
+++ b/llvm/lib/Target/X86/Disassembler/X86DisassemblerDecoder.h
@@ -24,7 +24,7 @@
   uint16_t operands;
 
 #define INSTRUCTION_IDS     \
-  unsigned instructionIDs;
+  uint16_t instructionIDs;
 
 #include "X86DisassemblerDecoderCommon.h"
 

llvm/utils/TableGen/X86DisassemblerTables.cpp

diff --git a/llvm/utils/TableGen/X86DisassemblerTables.cpp b/llvm/utils/TableGen/X86DisassemblerTables.cpp
index f3bd373..8526621 100644
--- a/llvm/utils/TableGen/X86DisassemblerTables.cpp
+++ b/llvm/utils/TableGen/X86DisassemblerTables.cpp
@@ -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;
 }