Index: src/utils.h |
=================================================================== |
--- src/utils.h (revision 11420) |
+++ src/utils.h (working copy) |
@@ -85,32 +85,6 @@ |
} |
-// Magic numbers for integer division. |
-// These are kind of 2's complement reciprocal of the divisors. |
-// Details and proofs can be found in: |
-// - Hacker's Delight, Henry S. Warren, Jr. |
-// - The PowerPC Compiler Writer’s Guide |
-// and probably many others. |
-// See details in the implementation of the algorithm in |
-// lithium-codegen-arm.cc : LCodeGen::TryEmitSignedIntegerDivisionByConstant(). |
-struct DivMagicNumbers { |
- unsigned M; |
- unsigned s; |
-}; |
- |
-const DivMagicNumbers InvalidDivMagicNumber= {0, 0}; |
-const DivMagicNumbers DivMagicNumberFor3 = {0x55555556, 0}; |
-const DivMagicNumbers DivMagicNumberFor5 = {0x66666667, 1}; |
-const DivMagicNumbers DivMagicNumberFor7 = {0x92492493, 2}; |
-const DivMagicNumbers DivMagicNumberFor9 = {0x38e38e39, 1}; |
-const DivMagicNumbers DivMagicNumberFor11 = {0x2e8ba2e9, 1}; |
-const DivMagicNumbers DivMagicNumberFor25 = {0x51eb851f, 3}; |
-const DivMagicNumbers DivMagicNumberFor125 = {0x10624dd3, 3}; |
-const DivMagicNumbers DivMagicNumberFor625 = {0x68db8bad, 8}; |
- |
-const DivMagicNumbers DivMagicNumberFor(int32_t divisor); |
- |
- |
// The C++ standard leaves the semantics of '>>' undefined for |
// negative signed operands. Most implementations do the right thing, |
// though. |