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rename numQword as stackSizeByte

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MITSUNARI Shigeo 2013-04-17 06:12:31 +09:00
parent a233ab985e
commit 57910b2920
2 changed files with 17 additions and 10 deletions
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4
test/sf_test.cpp
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@ -81,7 +81,7 @@ struct Code : public Xbyak::CodeGenerator {
void gen9()
{
StackFrame sf(this, 4, 3 | UseRCX | UseRDX, 4);
StackFrame sf(this, 4, 3 | UseRCX | UseRDX, 32);
xor_(rcx, rcx);
xor_(rdx, rdx);
mov(sf.t(0), 1);
@ -98,7 +98,7 @@ struct Code : public Xbyak::CodeGenerator {
void gen10()
{
StackFrame sf(this, 4, 8 | UseRCX | UseRDX, 4);
StackFrame sf(this, 4, 8 | UseRCX | UseRDX, 32);
xor_(rcx, rcx);
xor_(rdx, rdx);
for (int i = 0; i < 8; i++) {

23
xbyak/xbyak_util.h
View file

@ -267,17 +267,20 @@ public:
/*
make stack frame
@param sf [in] this
@param pNum [in] num of global parameter
@param tNum [in] num of temporary register
@param numQword [in] local stack size
@param useReg [in] reserve rcx, rdx if necessary
@param pNum [in] num of function parameter(0 <= pNum <= 4)
@param tNum [in] num of temporary register(0 <= tNum <= 10, with UseRCX, UseRDX)
@param stackSizeByte [in] local stack size
@param makeEpilog [in] automatically call close() if true
you can use
rax
gp0, ..., gp(pNum - 1)
gt0, ..., gt(tNum-1)
rsp[0..8 * numQrod - 1]
rcx if tNum & UseRCX
rdx if tNum & UseRDX
rsp[0..stackSizeByte - 1]
*/
StackFrame(Xbyak::CodeGenerator *code, int pNum, int tNum = 0, int numQword = 0, bool makeEpilog = true)
StackFrame(Xbyak::CodeGenerator *code, int pNum, int tNum = 0, int stackSizeByte = 0, bool makeEpilog = true)
: code_(code)
, pNum_(pNum)
, tNum_(tNum & ~(UseRCX | UseRDX))
@ -295,8 +298,8 @@ public:
const AddressFrame& ptr = code->ptr;
saveNum_ = (std::max)(0, allRegNum - noSaveNum);
const int *tbl = getOrderTbl() + noSaveNum;
P_ = saveNum_ + numQword;
if (P_ > 0 && (P_ & 1) == 0) P_++; // ensure (rsp % 16) == 0
P_ = saveNum_ + (stackSizeByte + 7) / 8;
if (P_ > 0 && (P_ & 1) == 0) P_++; // here (rsp % 16) == 8, then increment P_ for 16 byte alignment
P_ *= 8;
if (P_ > 0) code->sub(rsp, P_);
#ifdef XBYAK64_WIN
@ -319,6 +322,10 @@ public:
tTbl_[i] = Xbyak::Reg64(getRegIdx(pos));
}
}
/*
make epilog manually
@param callRet [in] call ret() if true
*/
void close(bool callRet = true)
{
using namespace Xbyak;