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JitArm64: Encode logical immediates at compile-time where possible

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Manually encoding and decoding logical immediates is error-prone.
Using ORRI2R and friends lets us avoid doing the work manually,
but in exchange, there is a runtime performance penalty. It's
probably rather small, but still, it would be nice if we could
let the compiler do the work at compile-time. And that's exactly
what this commit does, so now I have no excuse for trying to
manually write logical immediates anymore.
This commit is contained in:
JosJuice
2021-07-06 16:53:04 +02:00
parent 10861ed8ce
commit 9e80db123f
9 changed files with 67 additions and 67 deletions
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4
Source/Core/VideoCommon/VertexLoaderARM64.cpp
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@ -244,7 +244,7 @@ void VertexLoaderARM64::ReadColor(VertexComponentFormat attribute, ColorFormat f
LDR(IndexType::Unsigned, scratch2_reg, src_reg, offset);
if (format != ColorFormat::RGBA8888)
ORRI2R(scratch2_reg, scratch2_reg, 0xFF000000);
ORR(scratch2_reg, scratch2_reg, LogicalImm(0xFF000000, 32));
STR(IndexType::Unsigned, scratch2_reg, dst_reg, m_dst_ofs);
load_bytes = format == ColorFormat::RGB888 ? 3 : 4;
break;
@ -279,7 +279,7 @@ void VertexLoaderARM64::ReadColor(VertexComponentFormat attribute, ColorFormat f
ORR(scratch1_reg, scratch1_reg, scratch2_reg, ArithOption(scratch2_reg, ShiftType::LSR, 2));
// A
ORRI2R(scratch1_reg, scratch1_reg, 0xFF000000);
ORR(scratch1_reg, scratch1_reg, LogicalImm(0xFF000000, 32));
STR(IndexType::Unsigned, scratch1_reg, dst_reg, m_dst_ofs);
load_bytes = 2;