diff options
| author | gdkchan <gab.dark.100@gmail.com> | 2024-04-09 14:34:14 -0300 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-04-09 14:34:14 -0300 |
| commit | 543d75a587ee2197b83762dba393c1d525c601fc (patch) | |
| tree | 34ec413e4aaaebaba0d8499e7afdcf883478a368 /src | |
| parent | 338ff79e1e962250110047be781e069b4dccba01 (diff) | |
CPU: Produce non-inf results for RSQRTE instruction with subnormal inputs (#6634)1.1.1272
* CPU: Produce non-inf results for RSQRTE instruction with subnormal inputs
* PPTC version bump
Diffstat (limited to 'src')
| -rw-r--r-- | src/ARMeilleure/Instructions/InstEmitSimdArithmetic.cs | 12 | ||||
| -rw-r--r-- | src/ARMeilleure/Translation/PTC/Ptc.cs | 2 |
2 files changed, 11 insertions, 3 deletions
diff --git a/src/ARMeilleure/Instructions/InstEmitSimdArithmetic.cs b/src/ARMeilleure/Instructions/InstEmitSimdArithmetic.cs index 543aab02..13d9fac6 100644 --- a/src/ARMeilleure/Instructions/InstEmitSimdArithmetic.cs +++ b/src/ARMeilleure/Instructions/InstEmitSimdArithmetic.cs @@ -2426,7 +2426,11 @@ namespace ARMeilleure.Instructions } else if (Optimizations.FastFP && Optimizations.UseSse41 && sizeF == 0) { - Operand res = EmitSse41Round32Exp8OpF(context, context.AddIntrinsic(Intrinsic.X86Rsqrtss, GetVec(op.Rn)), scalar: true); + // RSQRTSS handles subnormals as zero, which differs from Arm, so we can't use it here. + + Operand res = context.AddIntrinsic(Intrinsic.X86Sqrtss, GetVec(op.Rn)); + res = context.AddIntrinsic(Intrinsic.X86Rcpss, res); + res = EmitSse41Round32Exp8OpF(context, res, scalar: true); context.Copy(GetVec(op.Rd), context.VectorZeroUpper96(res)); } @@ -2451,7 +2455,11 @@ namespace ARMeilleure.Instructions } else if (Optimizations.FastFP && Optimizations.UseSse41 && sizeF == 0) { - Operand res = EmitSse41Round32Exp8OpF(context, context.AddIntrinsic(Intrinsic.X86Rsqrtps, GetVec(op.Rn)), scalar: false); + // RSQRTPS handles subnormals as zero, which differs from Arm, so we can't use it here. + + Operand res = context.AddIntrinsic(Intrinsic.X86Sqrtps, GetVec(op.Rn)); + res = context.AddIntrinsic(Intrinsic.X86Rcpps, res); + res = EmitSse41Round32Exp8OpF(context, res, scalar: false); if (op.RegisterSize == RegisterSize.Simd64) { diff --git a/src/ARMeilleure/Translation/PTC/Ptc.cs b/src/ARMeilleure/Translation/PTC/Ptc.cs index f987284f..58f06534 100644 --- a/src/ARMeilleure/Translation/PTC/Ptc.cs +++ b/src/ARMeilleure/Translation/PTC/Ptc.cs @@ -29,7 +29,7 @@ namespace ARMeilleure.Translation.PTC private const string OuterHeaderMagicString = "PTCohd\0\0"; private const string InnerHeaderMagicString = "PTCihd\0\0"; - private const uint InternalVersion = 6613; //! To be incremented manually for each change to the ARMeilleure project. + private const uint InternalVersion = 6634; //! To be incremented manually for each change to the ARMeilleure project. private const string ActualDir = "0"; private const string BackupDir = "1"; |