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[x64] Support constant src1 for Int32 VECTOR_SHL_V128/VECTOR_SHR_V128.

This commit is contained in:
gibbed 2018-11-23 09:33:30 -06:00
parent b24936d248
commit 996093e499
1 changed files with 29 additions and 10 deletions
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39
src/xenia/cpu/backend/x64/x64_sequences.cc
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@ -5691,6 +5691,15 @@ struct VECTOR_SHL_V128
return _mm_load_si128(reinterpret_cast<__m128i*>(value));
}
static void EmitInt32(X64Emitter& e, const EmitArgType& i) {
Xmm src1;
if (i.src1.is_constant) {
src1 = e.xmm2;
e.LoadConstantXmm(src1, i.src1.constant());
}
else {
src1 = i.src1;
}
if (i.src2.is_constant) {
const auto& shamt = i.src2.constant();
bool all_same = true;
@ -5702,7 +5711,7 @@ struct VECTOR_SHL_V128
}
if (all_same) {
// Every count is the same, so we can use vpslld.
e.vpslld(i.dest, i.src1, shamt.u8[0] & 0x1F);
e.vpslld(i.dest, src1, shamt.u8[0] & 0x1F);
return;
}
}
@ -5716,13 +5725,13 @@ struct VECTOR_SHL_V128
masked.u32[n] &= 0x1F;
}
e.LoadConstantXmm(e.xmm0, masked);
e.vpsllvd(i.dest, i.src1, e.xmm0);
e.vpsllvd(i.dest, src1, e.xmm0);
} else {
// Fully variable shift.
// src shift mask may have values >31, and x86 sets to zero when
// that happens so we mask.
e.vandps(e.xmm0, i.src2, e.GetXmmConstPtr(XMMShiftMaskPS));
e.vpsllvd(i.dest, i.src1, e.xmm0);
e.vpsllvd(i.dest, src1, e.xmm0);
}
} else {
// Shift 4 words in src1 by amount specified in src2.
@ -5740,7 +5749,8 @@ struct VECTOR_SHL_V128
e.mov(e.rax, 0x1F);
e.vmovq(e.xmm1, e.rax);
e.vpand(e.xmm0, e.xmm0, e.xmm1);
e.vpslld(i.dest, i.src1, e.xmm0);
e.vpslld(i.dest, src1, e.xmm0);
e.jmp(end);
}
@ -5752,7 +5762,7 @@ struct VECTOR_SHL_V128
} else {
e.lea(e.r9, e.StashXmm(1, i.src2));
}
e.lea(e.r8, e.StashXmm(0, i.src1));
e.lea(e.r8, e.StashXmm(0, src1));
e.CallNativeSafe(reinterpret_cast<void*>(EmulateVectorShlI32));
e.vmovaps(i.dest, e.xmm0);
@ -5877,6 +5887,15 @@ struct VECTOR_SHR_V128
return _mm_load_si128(reinterpret_cast<__m128i*>(value));
}
static void EmitInt32(X64Emitter& e, const EmitArgType& i) {
Xmm src1;
if (i.src1.is_constant) {
src1 = e.xmm2;
e.LoadConstantXmm(src1, i.src1.constant());
}
else {
src1 = i.src1;
}
if (i.src2.is_constant) {
const auto& shamt = i.src2.constant();
bool all_same = true;
@ -5888,7 +5907,7 @@ struct VECTOR_SHR_V128
}
if (all_same) {
// Every count is the same, so we can use vpsrld.
e.vpsrld(i.dest, i.src1, shamt.u8[0] & 0x1F);
e.vpsrld(i.dest, src1, shamt.u8[0] & 0x1F);
return;
} else {
if (e.IsFeatureEnabled(kX64EmitAVX2)) {
@ -5898,7 +5917,7 @@ struct VECTOR_SHR_V128
masked.u32[n] &= 0x1F;
}
e.LoadConstantXmm(e.xmm0, masked);
e.vpsrlvd(i.dest, i.src1, e.xmm0);
e.vpsrlvd(i.dest, src1, e.xmm0);
return;
}
}
@ -5909,7 +5928,7 @@ struct VECTOR_SHR_V128
// src shift mask may have values >31, and x86 sets to zero when
// that happens so we mask.
e.vandps(e.xmm0, i.src2, e.GetXmmConstPtr(XMMShiftMaskPS));
e.vpsrlvd(i.dest, i.src1, e.xmm0);
e.vpsrlvd(i.dest, src1, e.xmm0);
} else {
// Shift 4 words in src1 by amount specified in src2.
Xbyak::Label emu, end;
@ -5926,7 +5945,7 @@ struct VECTOR_SHR_V128
e.mov(e.rax, 0x1F);
e.vmovq(e.xmm1, e.rax);
e.vpand(e.xmm0, e.xmm0, e.xmm1);
e.vpsrld(i.dest, i.src1, e.xmm0);
e.vpsrld(i.dest, src1, e.xmm0);
e.jmp(end);
}
@ -5938,7 +5957,7 @@ struct VECTOR_SHR_V128
} else {
e.lea(e.r9, e.StashXmm(1, i.src2));
}
e.lea(e.r8, e.StashXmm(0, i.src1));
e.lea(e.r8, e.StashXmm(0, src1));
e.CallNativeSafe(reinterpret_cast<void*>(EmulateVectorShrI32));
e.vmovaps(i.dest, e.xmm0);