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x86: Minor memory copy perf improvement.

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This was actually 270% -> 340% non-jit for pos-only verts.
This commit is contained in:
Unknown W. Brackets 2017-05-07 12:16:11 -07:00
parent b06e271ef3
commit 0fe927aaa7
1 changed files with 27 additions and 13 deletions
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40
GPU/Common/VertexDecoderX86.cpp
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@ -1221,12 +1221,19 @@ void VertexDecoderJitCache::Jit_NormalS16() {
}
void VertexDecoderJitCache::Jit_NormalFloat() {
MOV(32, R(tempReg1), MDisp(srcReg, dec_->nrmoff));
MOV(32, R(tempReg2), MDisp(srcReg, dec_->nrmoff + 4));
MOV(32, R(tempReg3), MDisp(srcReg, dec_->nrmoff + 8));
MOV(32, MDisp(dstReg, dec_->decFmt.nrmoff), R(tempReg1));
MOV(32, MDisp(dstReg, dec_->decFmt.nrmoff + 4), R(tempReg2));
MOV(32, MDisp(dstReg, dec_->decFmt.nrmoff + 8), R(tempReg3));
if (cpu_info.Mode64bit) {
MOV(64, R(tempReg1), MDisp(srcReg, dec_->nrmoff));
MOV(32, R(tempReg3), MDisp(srcReg, dec_->nrmoff + 8));
MOV(64, MDisp(dstReg, dec_->decFmt.posoff), R(tempReg1));
MOV(32, MDisp(dstReg, dec_->decFmt.posoff + 8), R(tempReg3));
} else {
MOV(32, R(tempReg1), MDisp(srcReg, dec_->nrmoff));
MOV(32, R(tempReg2), MDisp(srcReg, dec_->nrmoff + 4));
MOV(32, R(tempReg3), MDisp(srcReg, dec_->nrmoff + 8));
MOV(32, MDisp(dstReg, dec_->decFmt.nrmoff), R(tempReg1));
MOV(32, MDisp(dstReg, dec_->decFmt.nrmoff + 4), R(tempReg2));
MOV(32, MDisp(dstReg, dec_->decFmt.nrmoff + 8), R(tempReg3));
}
}
// This could be a bit shorter with AVX 3-operand instructions and FMA.
@ -1265,7 +1272,7 @@ void VertexDecoderJitCache::Jit_NormalFloatSkin() {
// Through expands into floats, always. Might want to look at changing this.
void VertexDecoderJitCache::Jit_PosS8Through() {
DEBUG_LOG_REPORT_ONCE(vertexS8Through, G3D, "Using S8 positions in throughmode");
// TODO: SIMD
// SIMD doesn't really matter since this isn't useful on hardware.
for (int i = 0; i < 3; i++) {
MOVSX(32, 8, tempReg1, MDisp(srcReg, dec_->posoff + i));
CVTSI2SS(fpScratchReg, R(tempReg1));
@ -1298,12 +1305,19 @@ void VertexDecoderJitCache::Jit_PosS16() {
// Just copy 12 bytes.
void VertexDecoderJitCache::Jit_PosFloat() {
MOV(32, R(tempReg1), MDisp(srcReg, dec_->posoff));
MOV(32, R(tempReg2), MDisp(srcReg, dec_->posoff + 4));
MOV(32, R(tempReg3), MDisp(srcReg, dec_->posoff + 8));
MOV(32, MDisp(dstReg, dec_->decFmt.posoff), R(tempReg1));
MOV(32, MDisp(dstReg, dec_->decFmt.posoff + 4), R(tempReg2));
MOV(32, MDisp(dstReg, dec_->decFmt.posoff + 8), R(tempReg3));
if (cpu_info.Mode64bit) {
MOV(64, R(tempReg1), MDisp(srcReg, dec_->posoff));
MOV(32, R(tempReg3), MDisp(srcReg, dec_->posoff + 8));
MOV(64, MDisp(dstReg, dec_->decFmt.posoff), R(tempReg1));
MOV(32, MDisp(dstReg, dec_->decFmt.posoff + 8), R(tempReg3));
} else {
MOV(32, R(tempReg1), MDisp(srcReg, dec_->posoff));
MOV(32, R(tempReg2), MDisp(srcReg, dec_->posoff + 4));
MOV(32, R(tempReg3), MDisp(srcReg, dec_->posoff + 8));
MOV(32, MDisp(dstReg, dec_->decFmt.posoff), R(tempReg1));
MOV(32, MDisp(dstReg, dec_->decFmt.posoff + 4), R(tempReg2));
MOV(32, MDisp(dstReg, dec_->decFmt.posoff + 8), R(tempReg3));
}
}
void VertexDecoderJitCache::Jit_PosS8Skin() {