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Updating the x64 casting behavior to be IEEE 754 compliant and to use saturation for overflow #61761

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Updating the x64 casting behavior to be IEEE 754 compliant and to use saturation for overflow #61761

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188f44b
Updating the RyuJIT casting behavior to be IEEE 754 compliant and to …
tannergooding Feb 19, 2022
1e61a40
Updating Mono casting behavior to be IEEE 754 compliant and to satura…
tannergooding Feb 19, 2022
f20d0f3
Fixing the mono interp to assign locals as gint32
tannergooding Mar 2, 2022
5d972fb
Ensure that lowering can take advantage of baseline hardware intrinsi…
tannergooding Mar 4, 2022
b4d8630
Ensure mono_try_trunc_u1 correctly handles assigning its out parameter
tannergooding Mar 6, 2022
391daaf
Merge remote-tracking branch 'dotnet/main' into fp-casting
tannergooding Mar 11, 2022
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28 changes: 18 additions & 10 deletions docs/design/coreclr/botr/readytorun-format.md
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Expand Up @@ -743,8 +743,8 @@ enum ReadyToRunHelper
READYTORUN_HELPER_LLsh = 0xC7,
READYTORUN_HELPER_LRsh = 0xC8,
READYTORUN_HELPER_LRsz = 0xC9,
READYTORUN_HELPER_Lng2Dbl = 0xCA,
READYTORUN_HELPER_ULng2Dbl = 0xCB,
READYTORUN_HELPER_Int64ToDouble = 0xCA,
READYTORUN_HELPER_UInt64ToDouble = 0xCB,

// 32-bit division helpers
READYTORUN_HELPER_Div = 0xCC,
Expand All @@ -753,14 +753,22 @@ enum ReadyToRunHelper
READYTORUN_HELPER_UMod = 0xCF,

// Floating point conversions
READYTORUN_HELPER_Dbl2Int = 0xD0,
READYTORUN_HELPER_Dbl2IntOvf = 0xD1,
READYTORUN_HELPER_Dbl2Lng = 0xD2,
READYTORUN_HELPER_Dbl2LngOvf = 0xD3,
READYTORUN_HELPER_Dbl2UInt = 0xD4,
READYTORUN_HELPER_Dbl2UIntOvf = 0xD5,
READYTORUN_HELPER_Dbl2ULng = 0xD6,
READYTORUN_HELPER_Dbl2ULngOvf = 0xD7,
READYTORUN_HELPER_DoubleToInt32 = 0xD0,
READYTORUN_HELPER_DoubleToInt32Ovf = 0xD1,
READYTORUN_HELPER_DoubleToInt64 = 0xD2,
READYTORUN_HELPER_DoubleToInt64Ovf = 0xD3,
READYTORUN_HELPER_DoubleToUInt32 = 0xD4,
READYTORUN_HELPER_DoubleToUInt32Ovf = 0xD5,
READYTORUN_HELPER_DoubleToUInt64 = 0xD6,
READYTORUN_HELPER_DoubleToUInt64Ovf = 0xD7,
READYTORUN_HELPER_DoubleToInt8 = 0xD8,
READYTORUN_HELPER_DoubleToInt8Ovf = 0xD9,
READYTORUN_HELPER_DoubleToInt16 = 0xDA,
READYTORUN_HELPER_DoubleToInt16Ovf = 0xDB,
READYTORUN_HELPER_DoubleToUInt8 = 0xDC,
READYTORUN_HELPER_DoubleToUInt8Ovf = 0xDD,
READYTORUN_HELPER_DoubleToUInt16 = 0xDE,
READYTORUN_HELPER_DoubleToUInt16Ovf = 0xDF,

// Floating point ops
READYTORUN_HELPER_DblRem = 0xE0,
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28 changes: 18 additions & 10 deletions src/coreclr/inc/corinfo.h
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Expand Up @@ -384,16 +384,24 @@ enum CorInfoHelpFunc
CORINFO_HELP_LMOD,
CORINFO_HELP_ULDIV,
CORINFO_HELP_ULMOD,
CORINFO_HELP_LNG2DBL, // Convert a signed int64 to a double
CORINFO_HELP_ULNG2DBL, // Convert a unsigned int64 to a double
CORINFO_HELP_DBL2INT,
CORINFO_HELP_DBL2INT_OVF,
CORINFO_HELP_DBL2LNG,
CORINFO_HELP_DBL2LNG_OVF,
CORINFO_HELP_DBL2UINT,
CORINFO_HELP_DBL2UINT_OVF,
CORINFO_HELP_DBL2ULNG,
CORINFO_HELP_DBL2ULNG_OVF,
CORINFO_HELP_Int64ToDouble,
CORINFO_HELP_UInt64ToDouble,
CORINFO_HELP_DoubleToInt8,
CORINFO_HELP_DoubleToInt8_OVF,
CORINFO_HELP_DoubleToInt16,
CORINFO_HELP_DoubleToInt16_OVF,
CORINFO_HELP_DoubleToInt32,
CORINFO_HELP_DoubleToInt32_OVF,
CORINFO_HELP_DoubleToInt64,
CORINFO_HELP_DoubleToInt64_OVF,
CORINFO_HELP_DoubleToUInt8,
CORINFO_HELP_DoubleToUInt8_OVF,
CORINFO_HELP_DoubleToUInt16,
CORINFO_HELP_DoubleToUInt16_OVF,
CORINFO_HELP_DoubleToUInt32,
CORINFO_HELP_DoubleToUInt32_OVF,
CORINFO_HELP_DoubleToUInt64,
CORINFO_HELP_DoubleToUInt64_OVF,
CORINFO_HELP_FLTREM,
CORINFO_HELP_DBLREM,
CORINFO_HELP_FLTROUND,
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52 changes: 29 additions & 23 deletions src/coreclr/inc/jithelpers.h
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Expand Up @@ -35,8 +35,6 @@
JITHELPER(CORINFO_HELP_UDIV, JIT_UDiv, CORINFO_HELP_SIG_8_STACK)
JITHELPER(CORINFO_HELP_UMOD, JIT_UMod, CORINFO_HELP_SIG_8_STACK)

// CORINFO_HELP_DBL2INT, CORINFO_HELP_DBL2UINT, and CORINFO_HELP_DBL2LONG get
// patched for CPUs that support SSE2 (P4 and above).
#ifndef TARGET_64BIT
JITHELPER(CORINFO_HELP_LLSH, JIT_LLsh, CORINFO_HELP_SIG_REG_ONLY)
JITHELPER(CORINFO_HELP_LRSH, JIT_LRsh, CORINFO_HELP_SIG_REG_ONLY)
Expand All @@ -46,27 +44,35 @@
JITHELPER(CORINFO_HELP_LRSH, NULL, CORINFO_HELP_SIG_CANNOT_USE_ALIGN_STUB)
JITHELPER(CORINFO_HELP_LRSZ, NULL, CORINFO_HELP_SIG_CANNOT_USE_ALIGN_STUB)
#endif // TARGET_64BIT
JITHELPER(CORINFO_HELP_LMUL, JIT_LMul, CORINFO_HELP_SIG_16_STACK)
JITHELPER(CORINFO_HELP_LMUL_OVF, JIT_LMulOvf, CORINFO_HELP_SIG_16_STACK)
JITHELPER(CORINFO_HELP_ULMUL_OVF, JIT_ULMulOvf, CORINFO_HELP_SIG_16_STACK)
JITHELPER(CORINFO_HELP_LDIV, JIT_LDiv, CORINFO_HELP_SIG_16_STACK)
JITHELPER(CORINFO_HELP_LMOD, JIT_LMod, CORINFO_HELP_SIG_16_STACK)
JITHELPER(CORINFO_HELP_ULDIV, JIT_ULDiv, CORINFO_HELP_SIG_16_STACK)
JITHELPER(CORINFO_HELP_ULMOD, JIT_ULMod, CORINFO_HELP_SIG_16_STACK)
JITHELPER(CORINFO_HELP_LNG2DBL, JIT_Lng2Dbl, CORINFO_HELP_SIG_8_STACK)
JITHELPER(CORINFO_HELP_ULNG2DBL, JIT_ULng2Dbl, CORINFO_HELP_SIG_8_STACK)
DYNAMICJITHELPER(CORINFO_HELP_DBL2INT, JIT_Dbl2Lng, CORINFO_HELP_SIG_8_STACK)
JITHELPER(CORINFO_HELP_DBL2INT_OVF, JIT_Dbl2IntOvf, CORINFO_HELP_SIG_8_STACK)
DYNAMICJITHELPER(CORINFO_HELP_DBL2LNG, JIT_Dbl2Lng, CORINFO_HELP_SIG_8_STACK)
JITHELPER(CORINFO_HELP_DBL2LNG_OVF, JIT_Dbl2LngOvf, CORINFO_HELP_SIG_8_STACK)
DYNAMICJITHELPER(CORINFO_HELP_DBL2UINT, JIT_Dbl2Lng, CORINFO_HELP_SIG_8_STACK)
JITHELPER(CORINFO_HELP_DBL2UINT_OVF, JIT_Dbl2UIntOvf, CORINFO_HELP_SIG_8_STACK)
JITHELPER(CORINFO_HELP_DBL2ULNG, JIT_Dbl2ULng, CORINFO_HELP_SIG_8_STACK)
JITHELPER(CORINFO_HELP_DBL2ULNG_OVF, JIT_Dbl2ULngOvf, CORINFO_HELP_SIG_8_STACK)
JITHELPER(CORINFO_HELP_FLTREM, JIT_FltRem, CORINFO_HELP_SIG_8_STACK)
JITHELPER(CORINFO_HELP_DBLREM, JIT_DblRem, CORINFO_HELP_SIG_16_STACK)
JITHELPER(CORINFO_HELP_FLTROUND, JIT_FloatRound, CORINFO_HELP_SIG_8_STACK)
JITHELPER(CORINFO_HELP_DBLROUND, JIT_DoubleRound, CORINFO_HELP_SIG_16_STACK)
JITHELPER(CORINFO_HELP_LMUL, JIT_LMul, CORINFO_HELP_SIG_16_STACK)
JITHELPER(CORINFO_HELP_LMUL_OVF, JIT_LMulOvf, CORINFO_HELP_SIG_16_STACK)
JITHELPER(CORINFO_HELP_ULMUL_OVF, JIT_ULMulOvf, CORINFO_HELP_SIG_16_STACK)
JITHELPER(CORINFO_HELP_LDIV, JIT_LDiv, CORINFO_HELP_SIG_16_STACK)
JITHELPER(CORINFO_HELP_LMOD, JIT_LMod, CORINFO_HELP_SIG_16_STACK)
JITHELPER(CORINFO_HELP_ULDIV, JIT_ULDiv, CORINFO_HELP_SIG_16_STACK)
JITHELPER(CORINFO_HELP_ULMOD, JIT_ULMod, CORINFO_HELP_SIG_16_STACK)
JITHELPER(CORINFO_HELP_Int64ToDouble, JIT_Int64ToDouble, CORINFO_HELP_SIG_8_STACK)
JITHELPER(CORINFO_HELP_UInt64ToDouble, JIT_UInt64ToDouble, CORINFO_HELP_SIG_8_STACK)
JITHELPER(CORINFO_HELP_DoubleToInt8, JIT_DoubleToInt8, CORINFO_HELP_SIG_8_STACK)
JITHELPER(CORINFO_HELP_DoubleToInt8_OVF, JIT_DoubleToInt8Ovf, CORINFO_HELP_SIG_8_STACK)
JITHELPER(CORINFO_HELP_DoubleToInt16, JIT_DoubleToInt16, CORINFO_HELP_SIG_8_STACK)
JITHELPER(CORINFO_HELP_DoubleToInt16_OVF, JIT_DoubleToInt16Ovf, CORINFO_HELP_SIG_8_STACK)
JITHELPER(CORINFO_HELP_DoubleToInt32, JIT_DoubleToInt32, CORINFO_HELP_SIG_8_STACK)
JITHELPER(CORINFO_HELP_DoubleToInt32_OVF, JIT_DoubleToInt32Ovf, CORINFO_HELP_SIG_8_STACK)
JITHELPER(CORINFO_HELP_DoubleToInt64, JIT_DoubleToInt64, CORINFO_HELP_SIG_8_STACK)
JITHELPER(CORINFO_HELP_DoubleToInt64_OVF, JIT_DoubleToInt64Ovf, CORINFO_HELP_SIG_8_STACK)
JITHELPER(CORINFO_HELP_DoubleToUInt8, JIT_DoubleToUInt8, CORINFO_HELP_SIG_8_STACK)
JITHELPER(CORINFO_HELP_DoubleToUInt8_OVF, JIT_DoubleToUInt8Ovf, CORINFO_HELP_SIG_8_STACK)
JITHELPER(CORINFO_HELP_DoubleToUInt16, JIT_DoubleToUInt16, CORINFO_HELP_SIG_8_STACK)
JITHELPER(CORINFO_HELP_DoubleToUInt16_OVF, JIT_DoubleToUInt16Ovf, CORINFO_HELP_SIG_8_STACK)
JITHELPER(CORINFO_HELP_DoubleToUInt32, JIT_DoubleToUInt32, CORINFO_HELP_SIG_8_STACK)
JITHELPER(CORINFO_HELP_DoubleToUInt32_OVF, JIT_DoubleToUInt32Ovf, CORINFO_HELP_SIG_8_STACK)
JITHELPER(CORINFO_HELP_DoubleToUInt64, JIT_DoubleToUInt64, CORINFO_HELP_SIG_8_STACK)
JITHELPER(CORINFO_HELP_DoubleToUInt64_OVF, JIT_DoubleToUInt64Ovf, CORINFO_HELP_SIG_8_STACK)
JITHELPER(CORINFO_HELP_FLTREM, JIT_FltRem, CORINFO_HELP_SIG_8_STACK)
JITHELPER(CORINFO_HELP_DBLREM, JIT_DblRem, CORINFO_HELP_SIG_16_STACK)
JITHELPER(CORINFO_HELP_FLTROUND, JIT_FloatRound, CORINFO_HELP_SIG_8_STACK)
JITHELPER(CORINFO_HELP_DBLROUND, JIT_DoubleRound, CORINFO_HELP_SIG_16_STACK)

// Allocating a new object
JITHELPER(CORINFO_HELP_NEWFAST, JIT_New, CORINFO_HELP_SIG_REG_ONLY)
Expand Down
28 changes: 18 additions & 10 deletions src/coreclr/inc/readytorun.h
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Expand Up @@ -320,8 +320,8 @@ enum ReadyToRunHelper
READYTORUN_HELPER_LLsh = 0xC7,
READYTORUN_HELPER_LRsh = 0xC8,
READYTORUN_HELPER_LRsz = 0xC9,
READYTORUN_HELPER_Lng2Dbl = 0xCA,
READYTORUN_HELPER_ULng2Dbl = 0xCB,
READYTORUN_HELPER_Int64ToDouble = 0xCA,
READYTORUN_HELPER_UInt64ToDouble = 0xCB,

// 32-bit division helpers
READYTORUN_HELPER_Div = 0xCC,
Expand All @@ -330,14 +330,22 @@ enum ReadyToRunHelper
READYTORUN_HELPER_UMod = 0xCF,

// Floating point conversions
READYTORUN_HELPER_Dbl2Int = 0xD0,
READYTORUN_HELPER_Dbl2IntOvf = 0xD1,
READYTORUN_HELPER_Dbl2Lng = 0xD2,
READYTORUN_HELPER_Dbl2LngOvf = 0xD3,
READYTORUN_HELPER_Dbl2UInt = 0xD4,
READYTORUN_HELPER_Dbl2UIntOvf = 0xD5,
READYTORUN_HELPER_Dbl2ULng = 0xD6,
READYTORUN_HELPER_Dbl2ULngOvf = 0xD7,
READYTORUN_HELPER_DoubleToInt32 = 0xD0,
READYTORUN_HELPER_DoubleToInt32Ovf = 0xD1,
READYTORUN_HELPER_DoubleToInt64 = 0xD2,
READYTORUN_HELPER_DoubleToInt64Ovf = 0xD3,
READYTORUN_HELPER_DoubleToUInt32 = 0xD4,
READYTORUN_HELPER_DoubleToUInt32Ovf = 0xD5,
READYTORUN_HELPER_DoubleToUInt64 = 0xD6,
READYTORUN_HELPER_DoubleToUInt64Ovf = 0xD7,
READYTORUN_HELPER_DoubleToInt8 = 0xD8,
READYTORUN_HELPER_DoubleToInt8Ovf = 0xD9,
READYTORUN_HELPER_DoubleToInt16 = 0xDA,
READYTORUN_HELPER_DoubleToInt16Ovf = 0xDB,
READYTORUN_HELPER_DoubleToUInt8 = 0xDC,
READYTORUN_HELPER_DoubleToUInt8Ovf = 0xDD,
READYTORUN_HELPER_DoubleToUInt16 = 0xDE,
READYTORUN_HELPER_DoubleToUInt16Ovf = 0xDF,

// Floating point ops
READYTORUN_HELPER_DblRem = 0xE0,
Expand Down
28 changes: 18 additions & 10 deletions src/coreclr/inc/readytorunhelpers.h
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Expand Up @@ -65,22 +65,30 @@ HELPER(READYTORUN_HELPER_ULMod, CORINFO_HELP_ULMOD,
HELPER(READYTORUN_HELPER_LLsh, CORINFO_HELP_LLSH, )
HELPER(READYTORUN_HELPER_LRsh, CORINFO_HELP_LRSH, )
HELPER(READYTORUN_HELPER_LRsz, CORINFO_HELP_LRSZ, )
HELPER(READYTORUN_HELPER_Lng2Dbl, CORINFO_HELP_LNG2DBL, )
HELPER(READYTORUN_HELPER_ULng2Dbl, CORINFO_HELP_ULNG2DBL, )
HELPER(READYTORUN_HELPER_Int64ToDouble, CORINFO_HELP_Int64ToDouble, )
HELPER(READYTORUN_HELPER_UInt64ToDouble, CORINFO_HELP_UInt64ToDouble, )

HELPER(READYTORUN_HELPER_Div, CORINFO_HELP_DIV, )
HELPER(READYTORUN_HELPER_Mod, CORINFO_HELP_MOD, )
HELPER(READYTORUN_HELPER_UDiv, CORINFO_HELP_UDIV, )
HELPER(READYTORUN_HELPER_UMod, CORINFO_HELP_UMOD, )

HELPER(READYTORUN_HELPER_Dbl2Int, CORINFO_HELP_DBL2INT, )
HELPER(READYTORUN_HELPER_Dbl2IntOvf, CORINFO_HELP_DBL2INT_OVF, )
HELPER(READYTORUN_HELPER_Dbl2Lng, CORINFO_HELP_DBL2LNG, )
HELPER(READYTORUN_HELPER_Dbl2LngOvf, CORINFO_HELP_DBL2LNG_OVF, )
HELPER(READYTORUN_HELPER_Dbl2UInt, CORINFO_HELP_DBL2UINT, )
HELPER(READYTORUN_HELPER_Dbl2UIntOvf, CORINFO_HELP_DBL2UINT_OVF, )
HELPER(READYTORUN_HELPER_Dbl2ULng, CORINFO_HELP_DBL2ULNG, )
HELPER(READYTORUN_HELPER_Dbl2ULngOvf, CORINFO_HELP_DBL2ULNG_OVF, )
HELPER(READYTORUN_HELPER_DoubleToInt32, CORINFO_HELP_DoubleToInt32, )
HELPER(READYTORUN_HELPER_DoubleToInt32Ovf, CORINFO_HELP_DoubleToInt32_OVF, )
HELPER(READYTORUN_HELPER_DoubleToInt64, CORINFO_HELP_DoubleToInt64, )
HELPER(READYTORUN_HELPER_DoubleToInt64Ovf, CORINFO_HELP_DoubleToInt64_OVF, )
HELPER(READYTORUN_HELPER_DoubleToUInt32, CORINFO_HELP_DoubleToUInt32, )
HELPER(READYTORUN_HELPER_DoubleToUInt32Ovf, CORINFO_HELP_DoubleToUInt32_OVF, )
HELPER(READYTORUN_HELPER_DoubleToUInt64, CORINFO_HELP_DoubleToUInt64, )
HELPER(READYTORUN_HELPER_DoubleToUInt64Ovf, CORINFO_HELP_DoubleToUInt64_OVF, )
HELPER(READYTORUN_HELPER_DoubleToInt8, CORINFO_HELP_DoubleToInt8, )
HELPER(READYTORUN_HELPER_DoubleToInt8Ovf, CORINFO_HELP_DoubleToInt8_OVF, )
HELPER(READYTORUN_HELPER_DoubleToInt16, CORINFO_HELP_DoubleToInt16, )
HELPER(READYTORUN_HELPER_DoubleToInt16Ovf, CORINFO_HELP_DoubleToInt16_OVF, )
HELPER(READYTORUN_HELPER_DoubleToUInt8, CORINFO_HELP_DoubleToUInt8, )
HELPER(READYTORUN_HELPER_DoubleToUInt8Ovf, CORINFO_HELP_DoubleToUInt8_OVF, )
HELPER(READYTORUN_HELPER_DoubleToUInt16, CORINFO_HELP_DoubleToUInt16, )
HELPER(READYTORUN_HELPER_DoubleToUInt16Ovf, CORINFO_HELP_DoubleToUInt16_OVF, )

HELPER(READYTORUN_HELPER_FltRem, CORINFO_HELP_FLTREM, )
HELPER(READYTORUN_HELPER_DblRem, CORINFO_HELP_DBLREM, )
Expand Down