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Extend Equals/StartsWith auto-vectorization for OrdinalIgnoreCase #66095

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merged 10 commits into from
Mar 9, 2022
Merged

Extend Equals/StartsWith auto-vectorization for OrdinalIgnoreCase #66095

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d9beb1a
Add OrdinalIgnoreCase support for importer_vectorization.cpp
EgorBo Mar 2, 2022
fbec407
Optimize SWAR cases with XORs
EgorBo Mar 2, 2022
68d0f61
Merge branch 'main' of https://github.com/dotnet/runtime into unroll-…
EgorBo Mar 2, 2022
cc90fb8
Clean up
EgorBo Mar 2, 2022
d83ae01
Merge branch 'main' of https://github.com/dotnet/runtime into unroll-…
EgorBo Mar 2, 2022
b001e8c
fix assert
EgorBo Mar 2, 2022
61e4020
Merge branch 'main' of https://github.com/dotnet/runtime into unroll-…
EgorBo Mar 3, 2022
e0356ed
Merge branch 'main' of https://github.com/dotnet/runtime into unroll-…
EgorBo Mar 8, 2022
99e63c4
Merge branch 'main' of https://github.com/dotnet/runtime into unroll-…
EgorBo Mar 8, 2022
ab637c9
Clean up
EgorBo Mar 8, 2022
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38 changes: 29 additions & 9 deletions src/coreclr/jit/compiler.h
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Original file line number Diff line number Diff line change
Expand Up @@ -4413,17 +4413,37 @@ class Compiler
void impResetLeaveBlock(BasicBlock* block, unsigned jmpAddr);
GenTree* impTypeIsAssignable(GenTree* typeTo, GenTree* typeFrom);

// Mirrors StringComparison.cs
enum StringComparison
{
Ordinal = 4,
OrdinalIgnoreCase = 5
};
enum StringComparisonJoint
{
Eq, // (d1 == cns1) && (s2 == cns2)
Xor, // (d1 ^ cns1) | (s2 ^ cns2)
};
GenTree* impStringEqualsOrStartsWith(bool startsWith, CORINFO_SIG_INFO* sig, unsigned methodFlags);
GenTree* impSpanEqualsOrStartsWith(bool startsWith, CORINFO_SIG_INFO* sig, unsigned methodFlags);
GenTree* impExpandHalfConstEquals(GenTreeLclVar* data,
GenTree* lengthFld,
bool checkForNull,
bool startsWith,
WCHAR* cnsData,
int len,
int dataOffset);
GenTree* impExpandHalfConstEqualsSWAR(GenTreeLclVar* data, WCHAR* cns, int len, int dataOffset);
GenTree* impExpandHalfConstEqualsSIMD(GenTreeLclVar* data, WCHAR* cns, int len, int dataOffset);
GenTree* impExpandHalfConstEquals(GenTreeLclVar* data,
GenTree* lengthFld,
bool checkForNull,
bool startsWith,
WCHAR* cnsData,
int len,
int dataOffset,
StringComparison cmpMode);
GenTree* impCreateCompareInd(GenTreeLclVar* obj,
var_types type,
ssize_t offset,
ssize_t value,
StringComparison ignoreCase,
StringComparisonJoint joint = Eq);
GenTree* impExpandHalfConstEqualsSWAR(
GenTreeLclVar* data, WCHAR* cns, int len, int dataOffset, StringComparison cmpMode);
GenTree* impExpandHalfConstEqualsSIMD(
GenTreeLclVar* data, WCHAR* cns, int len, int dataOffset, StringComparison cmpMode);
GenTreeStrCon* impGetStrConFromSpan(GenTree* span);

GenTree* impIntrinsic(GenTree* newobjThis,
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