[llvm-commits] [llvm] r159073 - /llvm/trunk/lib/Target/X86/X86InstrInfo.cpp
Craig Topper
craig.topper at gmail.com
Sat Jun 23 01:01:18 PDT 2012
Author: ctopper
Date: Sat Jun 23 03:01:18 2012
New Revision: 159073
URL: http://llvm.org/viewvc/llvm-project?rev=159073&view=rev
Log:
Compress flags in X86 op folding to reduce space in static tables.
Modified:
llvm/trunk/lib/Target/X86/X86InstrInfo.cpp
Modified: llvm/trunk/lib/Target/X86/X86InstrInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86InstrInfo.cpp?rev=159073&r1=159072&r2=159073&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86InstrInfo.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86InstrInfo.cpp Sat Jun 23 03:01:18 2012
@@ -55,39 +55,39 @@
enum {
// Select which memory operand is being unfolded.
- // (stored in bits 0 - 7)
+ // (stored in bits 0 - 3)
TB_INDEX_0 = 0,
TB_INDEX_1 = 1,
TB_INDEX_2 = 2,
TB_INDEX_3 = 3,
- TB_INDEX_MASK = 0xff,
-
- // Minimum alignment required for load/store.
- // Used for RegOp->MemOp conversion.
- // (stored in bits 8 - 15)
- TB_ALIGN_SHIFT = 8,
- TB_ALIGN_NONE = 0 << TB_ALIGN_SHIFT,
- TB_ALIGN_16 = 16 << TB_ALIGN_SHIFT,
- TB_ALIGN_32 = 32 << TB_ALIGN_SHIFT,
- TB_ALIGN_MASK = 0xff << TB_ALIGN_SHIFT,
+ TB_INDEX_MASK = 0xf,
// Do not insert the reverse map (MemOp -> RegOp) into the table.
// This may be needed because there is a many -> one mapping.
- TB_NO_REVERSE = 1 << 16,
+ TB_NO_REVERSE = 1 << 4,
// Do not insert the forward map (RegOp -> MemOp) into the table.
// This is needed for Native Client, which prohibits branch
// instructions from using a memory operand.
- TB_NO_FORWARD = 1 << 17,
+ TB_NO_FORWARD = 1 << 5,
- TB_FOLDED_LOAD = 1 << 18,
- TB_FOLDED_STORE = 1 << 19
+ TB_FOLDED_LOAD = 1 << 6,
+ TB_FOLDED_STORE = 1 << 7,
+
+ // Minimum alignment required for load/store.
+ // Used for RegOp->MemOp conversion.
+ // (stored in bits 8 - 15)
+ TB_ALIGN_SHIFT = 8,
+ TB_ALIGN_NONE = 0 << TB_ALIGN_SHIFT,
+ TB_ALIGN_16 = 16 << TB_ALIGN_SHIFT,
+ TB_ALIGN_32 = 32 << TB_ALIGN_SHIFT,
+ TB_ALIGN_MASK = 0xff << TB_ALIGN_SHIFT
};
struct X86OpTblEntry {
uint16_t RegOp;
uint16_t MemOp;
- uint32_t Flags;
+ uint16_t Flags;
};
X86InstrInfo::X86InstrInfo(X86TargetMachine &tm)
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