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encourage loads from memory directly into SSE registers where appropriate

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This commit is contained in:
Joel Dice 2009-11-30 02:17:08 +00:00
parent 1c61c1f421
commit 79d281f7fa
2 changed files with 13 additions and 3 deletions
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6
src/compiler.cpp
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@ -3447,6 +3447,10 @@ maybeMove(Context* c, BinaryOperation type, unsigned srcSize,
c->arch->planSource(type, dstSize, &srcTypeMask, &srcRegisterMask,
dstSize, &thunk);
if (src->type == ValueGeneral) {
srcRegisterMask &= c->arch->generalRegisterMask();
}
assert(c, thunk == 0);
assert(c, dstMask.typeMask & srcTypeMask & (1 << RegisterOperand));
@ -6013,7 +6017,7 @@ class MyCompiler: public Compiler {
virtual void push(unsigned footprint UNUSED) {
assert(&c, footprint == 1);
Value* v = value(&c, ValueFloat);
Value* v = value(&c, ValueGeneral);
Stack* s = local::stack(&c, v, c.stack);
v->home = frameIndex(&c, s->index + c.localFootprint);

10
src/x86.cpp
View File

@ -946,6 +946,9 @@ void
sseMoveRR(Context* c, unsigned aSize, Assembler::Register* a,
unsigned bSize UNUSED, Assembler::Register* b)
{
assert(c, aSize >= 4);
assert(c, aSize == bSize);
if (floatReg(a) and floatReg(b)) {
if (aSize == 4) {
opcode(c, 0xf3);
@ -1090,6 +1093,9 @@ void
sseMoveMR(Context* c, unsigned aSize, Assembler::Memory* a,
unsigned bSize UNUSED, Assembler::Register* b)
{
assert(c, aSize >= 4);
assert(c, aSize == bSize);
if (BytesPerWord == 4 and aSize == 8) {
opcode(c, 0xf3);
opcode(c, 0x0f, 0x7e);
@ -1165,6 +1171,7 @@ void
sseMoveRM(Context* c, unsigned aSize, Assembler::Register* a,
UNUSED unsigned bSize, Assembler::Memory* b)
{
assert(c, aSize >= 4);
assert(c, aSize == bSize);
if (BytesPerWord == 4 and aSize == 8) {
@ -2942,8 +2949,7 @@ class MyArchitecture: public Assembler::Architecture {
case Move:
*aTypeMask = (1 << RegisterOperand) | (1 << MemoryOperand);
*aRegisterMask = GeneralRegisterMask
| (static_cast<uint64_t>(GeneralRegisterMask) << 32);
*aRegisterMask = ~static_cast<uint64_t>(0);
if (BytesPerWord == 4) {
if (aSize == 4 and bSize == 8) {