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Ensure mini-amd64 correctly handles CMP_GT and CMP_GE for OP_XCOMPARE_FP #104206

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merged 3 commits into from
Jul 3, 2024
Merged

Ensure mini-amd64 correctly handles CMP_GT and CMP_GE for OP_XCOMPARE_FP #104206

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44d9c6b
Ensure mini-amd64 correctly handles CMP_GT and CMP_GE for OP_XCOMPARE_FP
tannergooding Jun 30, 2024
9a8dc5c
Re-enable the tests disabled due to #97176
tannergooding Jun 30, 2024
a829446
Merge remote-tracking branch 'dotnet/main' into mono-xcompare-fp
tannergooding Jul 2, 2024
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2 changes: 0 additions & 2 deletions src/libraries/System.Runtime.Intrinsics/tests/Vectors/Vector128Tests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -4826,7 +4826,6 @@ private static void TestCreateSequence<T>(T start, T step)

[Theory]
[MemberData(nameof(VectorTestMemberData.ExpDouble), MemberType = typeof(VectorTestMemberData))]
[SkipOnMono("https://github.com/dotnet/runtime/issues/97176")]
public void ExpDoubleTest(double value, double expectedResult, double variance)
{
Vector128<double> actualResult = Vector128.Exp(Vector128.Create(value));
Expand All @@ -4835,7 +4834,6 @@ public void ExpDoubleTest(double value, double expectedResult, double variance)

[Theory]
[MemberData(nameof(VectorTestMemberData.ExpSingle), MemberType = typeof(VectorTestMemberData))]
[SkipOnMono("https://github.com/dotnet/runtime/issues/97176")]
public void ExpSingleTest(float value, float expectedResult, float variance)
{
Vector128<float> actualResult = Vector128.Exp(Vector128.Create(value));
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2 changes: 0 additions & 2 deletions src/libraries/System.Runtime.Intrinsics/tests/Vectors/Vector256Tests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -5841,7 +5841,6 @@ private static void TestCreateSequence<T>(T start, T step)

[Theory]
[MemberData(nameof(VectorTestMemberData.ExpDouble), MemberType = typeof(VectorTestMemberData))]
[SkipOnMono("https://github.com/dotnet/runtime/issues/97176")]
public void ExpDoubleTest(double value, double expectedResult, double variance)
{
Vector256<double> actualResult = Vector256.Exp(Vector256.Create(value));
Expand All @@ -5850,7 +5849,6 @@ public void ExpDoubleTest(double value, double expectedResult, double variance)

[Theory]
[MemberData(nameof(VectorTestMemberData.ExpSingle), MemberType = typeof(VectorTestMemberData))]
[SkipOnMono("https://github.com/dotnet/runtime/issues/97176")]
public void ExpSingleTest(float value, float expectedResult, float variance)
{
Vector256<float> actualResult = Vector256.Exp(Vector256.Create(value));
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2 changes: 0 additions & 2 deletions src/libraries/System.Runtime.Intrinsics/tests/Vectors/Vector512Tests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -5274,7 +5274,6 @@ private static void TestCreateSequence<T>(T start, T step)

[Theory]
[MemberData(nameof(VectorTestMemberData.ExpDouble), MemberType = typeof(VectorTestMemberData))]
[SkipOnMono("https://github.com/dotnet/runtime/issues/97176")]
public void ExpDoubleTest(double value, double expectedResult, double variance)
{
Vector512<double> actualResult = Vector512.Exp(Vector512.Create(value));
Expand All @@ -5283,7 +5282,6 @@ public void ExpDoubleTest(double value, double expectedResult, double variance)

[Theory]
[MemberData(nameof(VectorTestMemberData.ExpSingle), MemberType = typeof(VectorTestMemberData))]
[SkipOnMono("https://github.com/dotnet/runtime/issues/97176")]
public void ExpSingleTest(float value, float expectedResult, float variance)
{
Vector512<float> actualResult = Vector512.Exp(Vector512.Create(value));
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22 changes: 20 additions & 2 deletions src/mono/mono/mini/mini-amd64.c
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Original file line number Diff line number Diff line change
Expand Up @@ -4072,8 +4072,26 @@ mono_arch_lowering_pass (MonoCompile *cfg, MonoBasicBlock *bb)
case CMP_NE: ins->inst_c0 = 4; break;
case CMP_LT: ins->inst_c0 = 1; break;
case CMP_LE: ins->inst_c0 = 2; break;
case CMP_GT: ins->inst_c0 = 6; break;
case CMP_GE: ins->inst_c0 = 5; break;
case CMP_GT: {
// CMPNLT (5) is not the same as CMPGT due to NaN
// as such, we want to emit CMPLT (1) with swapped
// operands instead, ensuring we get correct handling
int tmp = ins->sreg1;
ins->sreg1 = ins->sreg2;
ins->sreg2 = tmp;
ins->inst_c0 = 1;
break;
}
case CMP_GE: {
// CMPNLE (6) is not the same as CMPGE due to NaN
// as such, we want to emit CMPLE (2) with swapped
// operands instead, ensuring we get correct handling
int tmp = ins->sreg1;
ins->sreg1 = ins->sreg2;
ins->sreg2 = tmp;
ins->inst_c0 = 2;
break;
}
default:
g_assert_not_reached();
break;
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