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cpu: Work around gcc 4.9 issues with Num_OpClasses

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This patch fixes a recent issue with gcc 4.9 (and possibly more) being
convinced that indices outside the array bounds are used when
initialising the FUPool members.
This commit is contained in:
Andreas Hansson 2015-05-05 03:22:19 -04:00
parent eb1a9977bf
commit d0d933facc
4 changed files with 40 additions and 42 deletions
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2
src/cpu/minor/execute.cc
View file

@ -150,7 +150,7 @@ Execute::Execute(const std::string &name_,
}
/** Check that there is a functional unit for all operation classes */
for (int op_class = No_OpClass + 1; op_class < Num_OpClass; op_class++) {
for (int op_class = No_OpClass + 1; op_class < Num_OpClasses; op_class++) {
bool found_fu = false;
unsigned int fu_index = 0;

6
src/cpu/o3/fu_pool.cc
View file

@ -87,10 +87,8 @@ FUPool::FUPool(const Params *p)
funcUnits.clear();
for (int i = 0; i < Num_OpClasses; ++i) {
maxOpLatencies[i] = Cycles(0);
pipelined[i] = true;
}
maxOpLatencies.fill(Cycles(0));
pipelined.fill(true);
//
// Iterate through the list of FUDescData structures

5
src/cpu/o3/fu_pool.hh
View file

@ -43,6 +43,7 @@
#ifndef __CPU_O3_FU_POOL_HH__
#define __CPU_O3_FU_POOL_HH__
#include <array>
#include <bitset>
#include <list>
#include <string>
@ -71,9 +72,9 @@ class FUPool : public SimObject
{
private:
/** Maximum op execution latencies, per op class. */
Cycles maxOpLatencies[Num_OpClasses];
std::array<Cycles, Num_OpClasses> maxOpLatencies;
/** Whether op is pipelined or not. */
bool pipelined[Num_OpClasses];
std::array<bool, Num_OpClasses> pipelined;
/** Bitvector listing capabilities of this FU pool. */
std::bitset<Num_OpClasses> capabilityList;

69
src/cpu/op_class.hh
View file

@ -51,41 +51,40 @@
*/
using Enums::OpClass;
using Enums::No_OpClass;
using Enums::Num_OpClass;
const OpClass IntAluOp = Enums::IntAlu;
const OpClass IntMultOp = Enums::IntMult;
const OpClass IntDivOp = Enums::IntDiv;
const OpClass FloatAddOp = Enums::FloatAdd;
const OpClass FloatCmpOp = Enums::FloatCmp;
const OpClass FloatCvtOp = Enums::FloatCvt;
const OpClass FloatMultOp = Enums::FloatMult;
const OpClass FloatDivOp = Enums::FloatDiv;
const OpClass FloatSqrtOp = Enums::FloatSqrt;
const OpClass SimdAddOp = Enums::SimdAdd;
const OpClass SimdAddAccOp = Enums::SimdAddAcc;
const OpClass SimdAluOp = Enums::SimdAlu;
const OpClass SimdCmpOp = Enums::SimdCmp;
const OpClass SimdCvtOp = Enums::SimdCvt;
const OpClass SimdMiscOp = Enums::SimdMisc;
const OpClass SimdMultOp = Enums::SimdMult;
const OpClass SimdMultAccOp = Enums::SimdMultAcc;
const OpClass SimdShiftOp = Enums::SimdShift;
const OpClass SimdShiftAccOp = Enums::SimdShiftAcc;
const OpClass SimdSqrtOp = Enums::SimdSqrt;
const OpClass SimdFloatAddOp = Enums::SimdFloatAdd;
const OpClass SimdFloatAluOp = Enums::SimdFloatAlu;
const OpClass SimdFloatCmpOp = Enums::SimdFloatCmp;
const OpClass SimdFloatCvtOp = Enums::SimdFloatCvt;
const OpClass SimdFloatDivOp = Enums::SimdFloatDiv;
const OpClass SimdFloatMiscOp = Enums::SimdFloatMisc;
const OpClass SimdFloatMultOp = Enums::SimdFloatMult;
const OpClass SimdFloatMultAccOp = Enums::SimdFloatMultAcc;
const OpClass SimdFloatSqrtOp = Enums::SimdFloatSqrt;
const OpClass MemReadOp = Enums::MemRead;
const OpClass MemWriteOp = Enums::MemWrite;
const OpClass IprAccessOp = Enums::IprAccess;
const OpClass InstPrefetchOp = Enums::InstPrefetch;
const OpClass Num_OpClasses = Num_OpClass;
static const OpClass IntAluOp = Enums::IntAlu;
static const OpClass IntMultOp = Enums::IntMult;
static const OpClass IntDivOp = Enums::IntDiv;
static const OpClass FloatAddOp = Enums::FloatAdd;
static const OpClass FloatCmpOp = Enums::FloatCmp;
static const OpClass FloatCvtOp = Enums::FloatCvt;
static const OpClass FloatMultOp = Enums::FloatMult;
static const OpClass FloatDivOp = Enums::FloatDiv;
static const OpClass FloatSqrtOp = Enums::FloatSqrt;
static const OpClass SimdAddOp = Enums::SimdAdd;
static const OpClass SimdAddAccOp = Enums::SimdAddAcc;
static const OpClass SimdAluOp = Enums::SimdAlu;
static const OpClass SimdCmpOp = Enums::SimdCmp;
static const OpClass SimdCvtOp = Enums::SimdCvt;
static const OpClass SimdMiscOp = Enums::SimdMisc;
static const OpClass SimdMultOp = Enums::SimdMult;
static const OpClass SimdMultAccOp = Enums::SimdMultAcc;
static const OpClass SimdShiftOp = Enums::SimdShift;
static const OpClass SimdShiftAccOp = Enums::SimdShiftAcc;
static const OpClass SimdSqrtOp = Enums::SimdSqrt;
static const OpClass SimdFloatAddOp = Enums::SimdFloatAdd;
static const OpClass SimdFloatAluOp = Enums::SimdFloatAlu;
static const OpClass SimdFloatCmpOp = Enums::SimdFloatCmp;
static const OpClass SimdFloatCvtOp = Enums::SimdFloatCvt;
static const OpClass SimdFloatDivOp = Enums::SimdFloatDiv;
static const OpClass SimdFloatMiscOp = Enums::SimdFloatMisc;
static const OpClass SimdFloatMultOp = Enums::SimdFloatMult;
static const OpClass SimdFloatMultAccOp = Enums::SimdFloatMultAcc;
static const OpClass SimdFloatSqrtOp = Enums::SimdFloatSqrt;
static const OpClass MemReadOp = Enums::MemRead;
static const OpClass MemWriteOp = Enums::MemWrite;
static const OpClass IprAccessOp = Enums::IprAccess;
static const OpClass InstPrefetchOp = Enums::InstPrefetch;
static const OpClass Num_OpClasses = Enums::Num_OpClass;
#endif // __CPU__OP_CLASS_HH__