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[release/9.0] JIT: don't create vector constants from relocatable constants #107500

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merged 3 commits into from
Sep 11, 2024
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[release/9.0] JIT: don't create vector constants from relocatable constants #107500

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4af5ec1
JIT: don't create vector constants from relocatable constants
AndyAyersMS Sep 6, 2024
b1b9713
Merge branch 'release/9.0' into backport/pr-107491-to-release/9.0
jeffschwMSFT Sep 11, 2024
c51beac
Merge branch 'release/9.0' into backport/pr-107491-to-release/9.0
jeffschwMSFT Sep 11, 2024
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12 changes: 11 additions & 1 deletion src/coreclr/jit/lower.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -8823,12 +8823,22 @@ void Lowering::LowerStoreIndirCoalescing(GenTreeIndir* ind)
assert(prevData.IsStore());
assert(currData.IsStore());

// For now, only constants are supported for data.
// For now, only non-relocatable constants are supported for data.
if (!prevData.value->OperIsConst() || !currData.value->OperIsConst())
{
return;
}

if (prevData.value->IsCnsIntOrI() && prevData.value->AsIntCon()->ImmedValNeedsReloc(comp))
{
return;
}

if (currData.value->IsCnsIntOrI() && currData.value->AsIntCon()->ImmedValNeedsReloc(comp))
{
return;
}

// Otherwise, the difference between two offsets has to match the size of the type.
// We don't support overlapping stores.
if (abs(prevData.offset - currData.offset) != (int)genTypeSize(prevData.targetType))
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