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[llvm] Change fp128 lowering to use f128 functions by default #76558

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[llvm] Change fp128 lowering to use f128 functions by default #76558

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d82f053
[IR] Add a test for `f128` libcall lowering (NFC)
tgross35 Aug 12, 2023
a1f0183
[IR] Change `fp128` lowering to use `f128` functions by default
tgross35 Dec 28, 2023
553bb3a
Update tests
tgross35 Apr 27, 2025
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37 changes: 19 additions & 18 deletions llvm/include/llvm/Analysis/TargetTransformInfoImpl.h
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Original file line number Diff line number Diff line change
Expand Up @@ -189,27 +189,28 @@ class TargetTransformInfoImplBase {

// These will all likely lower to a single selection DAG node.
// clang-format off
if (Name == "copysign" || Name == "copysignf" || Name == "copysignl" ||
Name == "fabs" || Name == "fabsf" || Name == "fabsl" ||
Name == "fmin" || Name == "fminf" || Name == "fminl" ||
Name == "fmax" || Name == "fmaxf" || Name == "fmaxl" ||
Name == "sin" || Name == "sinf" || Name == "sinl" ||
Name == "cos" || Name == "cosf" || Name == "cosl" ||
Name == "tan" || Name == "tanf" || Name == "tanl" ||
Name == "asin" || Name == "asinf" || Name == "asinl" ||
Name == "acos" || Name == "acosf" || Name == "acosl" ||
Name == "atan" || Name == "atanf" || Name == "atanl" ||
Name == "atan2" || Name == "atan2f" || Name == "atan2l"||
Name == "sinh" || Name == "sinhf" || Name == "sinhl" ||
Name == "cosh" || Name == "coshf" || Name == "coshl" ||
Name == "tanh" || Name == "tanhf" || Name == "tanhl" ||
Name == "sqrt" || Name == "sqrtf" || Name == "sqrtl" ||
Name == "exp10" || Name == "exp10l" || Name == "exp10f")
if (Name == "copysign" || Name == "copysignf" || Name == "copysignl" || Name == "copysignf128" ||
Name == "fabs" || Name == "fabsf" || Name == "fabsl" || Name == "fabsf128" ||
Name == "fmin" || Name == "fminf" || Name == "fminl" || Name == "fminf128" ||
Name == "fmax" || Name == "fmaxf" || Name == "fmaxl" || Name == "fmaxf128" ||
Name == "sin" || Name == "sinf" || Name == "sinl" || Name == "sinf128" ||
Name == "cos" || Name == "cosf" || Name == "cosl" || Name == "cosf128" ||
Name == "tan" || Name == "tanf" || Name == "tanl" || Name == "tanf128" ||
Name == "asin" || Name == "asinf" || Name == "asinl" || Name == "asinf128" ||
Name == "acos" || Name == "acosf" || Name == "acosl" || Name == "acosf128" ||
Name == "atan" || Name == "atanf" || Name == "atanl" || Name == "atanf128" ||
Name == "atan2" || Name == "atan2f" || Name == "atan2l" || Name == "atan2f128"||
Name == "sinh" || Name == "sinhf" || Name == "sinhl" || Name == "sinhf128" ||
Name == "cosh" || Name == "coshf" || Name == "coshl" || Name == "coshf128" ||
Name == "tanh" || Name == "tanhf" || Name == "tanhl" || Name == "tanhf128" ||
Name == "sqrt" || Name == "sqrtf" || Name == "sqrtl" || Name == "sqrtf128" ||
Name == "exp10" || Name == "exp10l" || Name == "exp10f" || Name == "exp10f128")
Comment on lines +192 to +207
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I'm not sure what the effects of this change are, but it seemed unusual that long double and f128 would be treated differently here.

return false;
// clang-format on
// These are all likely to be optimized into something smaller.
if (Name == "pow" || Name == "powf" || Name == "powl" || Name == "exp2" ||
Name == "exp2l" || Name == "exp2f" || Name == "floor" ||
if (Name == "pow" || Name == "powf" || Name == "powl" ||
Name == "powf128" || Name == "exp2" || Name == "exp2f" ||
Name == "exp2l" || Name == "exp2f128" || Name == "floor" ||
Name == "floorf" || Name == "ceil" || Name == "round" ||
Name == "ffs" || Name == "ffsl" || Name == "abs" || Name == "labs" ||
Name == "llabs")
Expand Down
101 changes: 51 additions & 50 deletions llvm/include/llvm/IR/RuntimeLibcalls.def
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Original file line number Diff line number Diff line change
Expand Up @@ -89,7 +89,8 @@ HANDLE_LIBCALL(CTPOP_I32, "__popcountsi2")
HANDLE_LIBCALL(CTPOP_I64, "__popcountdi2")
HANDLE_LIBCALL(CTPOP_I128, "__popcountti2")

// Floating-point
// Floating-point. Note that new fp128 math routines should also be added to
// setF128LibcallFormat in RuntimeLibcalls.cpp.
HANDLE_LIBCALL(ADD_F32, "__addsf3")
HANDLE_LIBCALL(ADD_F64, "__adddf3")
HANDLE_LIBCALL(ADD_F80, "__addxf3")
Expand All @@ -113,12 +114,12 @@ HANDLE_LIBCALL(DIV_PPCF128, "__gcc_qdiv")
HANDLE_LIBCALL(REM_F32, "fmodf")
HANDLE_LIBCALL(REM_F64, "fmod")
HANDLE_LIBCALL(REM_F80, "fmodl")
HANDLE_LIBCALL(REM_F128, "fmodl")
HANDLE_LIBCALL(REM_F128, "fmodf128")
HANDLE_LIBCALL(REM_PPCF128, "fmodl")
HANDLE_LIBCALL(FMA_F32, "fmaf")
HANDLE_LIBCALL(FMA_F64, "fma")
HANDLE_LIBCALL(FMA_F80, "fmal")
HANDLE_LIBCALL(FMA_F128, "fmal")
HANDLE_LIBCALL(FMA_F128, "fmaf128")
HANDLE_LIBCALL(FMA_PPCF128, "fmal")
HANDLE_LIBCALL(POWI_F32, "__powisf2")
HANDLE_LIBCALL(POWI_F64, "__powidf2")
Expand All @@ -128,117 +129,117 @@ HANDLE_LIBCALL(POWI_PPCF128, "__powitf2")
HANDLE_LIBCALL(SQRT_F32, "sqrtf")
HANDLE_LIBCALL(SQRT_F64, "sqrt")
HANDLE_LIBCALL(SQRT_F80, "sqrtl")
HANDLE_LIBCALL(SQRT_F128, "sqrtl")
HANDLE_LIBCALL(SQRT_F128, "sqrtf128")
HANDLE_LIBCALL(SQRT_PPCF128, "sqrtl")
HANDLE_LIBCALL(CBRT_F32, "cbrtf")
HANDLE_LIBCALL(CBRT_F64, "cbrt")
HANDLE_LIBCALL(CBRT_F80, "cbrtl")
HANDLE_LIBCALL(CBRT_F128, "cbrtl")
HANDLE_LIBCALL(CBRT_F128, "cbrtf128")
HANDLE_LIBCALL(CBRT_PPCF128, "cbrtl")
HANDLE_LIBCALL(LOG_F32, "logf")
HANDLE_LIBCALL(LOG_F64, "log")
HANDLE_LIBCALL(LOG_F80, "logl")
HANDLE_LIBCALL(LOG_F128, "logl")
HANDLE_LIBCALL(LOG_F128, "logf128")
HANDLE_LIBCALL(LOG_PPCF128, "logl")
HANDLE_LIBCALL(LOG_FINITE_F32, "__logf_finite")
HANDLE_LIBCALL(LOG_FINITE_F64, "__log_finite")
HANDLE_LIBCALL(LOG_FINITE_F80, "__logl_finite")
HANDLE_LIBCALL(LOG_FINITE_F128, "__logl_finite")
HANDLE_LIBCALL(LOG_FINITE_F128, "__logf128_finite")
HANDLE_LIBCALL(LOG_FINITE_PPCF128, "__logl_finite")
HANDLE_LIBCALL(LOG2_F32, "log2f")
HANDLE_LIBCALL(LOG2_F64, "log2")
HANDLE_LIBCALL(LOG2_F80, "log2l")
HANDLE_LIBCALL(LOG2_F128, "log2l")
HANDLE_LIBCALL(LOG2_F128, "log2f128")
HANDLE_LIBCALL(LOG2_PPCF128, "log2l")
HANDLE_LIBCALL(LOG2_FINITE_F32, "__log2f_finite")
HANDLE_LIBCALL(LOG2_FINITE_F64, "__log2_finite")
HANDLE_LIBCALL(LOG2_FINITE_F80, "__log2l_finite")
HANDLE_LIBCALL(LOG2_FINITE_F128, "__log2l_finite")
HANDLE_LIBCALL(LOG2_FINITE_F128, "__log2f128_finite")
HANDLE_LIBCALL(LOG2_FINITE_PPCF128, "__log2l_finite")
HANDLE_LIBCALL(LOG10_F32, "log10f")
HANDLE_LIBCALL(LOG10_F64, "log10")
HANDLE_LIBCALL(LOG10_F80, "log10l")
HANDLE_LIBCALL(LOG10_F128, "log10l")
HANDLE_LIBCALL(LOG10_F128, "log10f128")
HANDLE_LIBCALL(LOG10_PPCF128, "log10l")
HANDLE_LIBCALL(LOG10_FINITE_F32, "__log10f_finite")
HANDLE_LIBCALL(LOG10_FINITE_F64, "__log10_finite")
HANDLE_LIBCALL(LOG10_FINITE_F80, "__log10l_finite")
HANDLE_LIBCALL(LOG10_FINITE_F128, "__log10l_finite")
HANDLE_LIBCALL(LOG10_FINITE_F128, "__log10f128_finite")
HANDLE_LIBCALL(LOG10_FINITE_PPCF128, "__log10l_finite")
HANDLE_LIBCALL(EXP_F32, "expf")
HANDLE_LIBCALL(EXP_F64, "exp")
HANDLE_LIBCALL(EXP_F80, "expl")
HANDLE_LIBCALL(EXP_F128, "expl")
HANDLE_LIBCALL(EXP_F128, "expf128")
HANDLE_LIBCALL(EXP_PPCF128, "expl")
HANDLE_LIBCALL(EXP_FINITE_F32, "__expf_finite")
HANDLE_LIBCALL(EXP_FINITE_F64, "__exp_finite")
HANDLE_LIBCALL(EXP_FINITE_F80, "__expl_finite")
HANDLE_LIBCALL(EXP_FINITE_F128, "__expl_finite")
HANDLE_LIBCALL(EXP_FINITE_F128, "__expf128_finite")
HANDLE_LIBCALL(EXP_FINITE_PPCF128, "__expl_finite")
HANDLE_LIBCALL(EXP2_F32, "exp2f")
HANDLE_LIBCALL(EXP2_F64, "exp2")
HANDLE_LIBCALL(EXP2_F80, "exp2l")
HANDLE_LIBCALL(EXP2_F128, "exp2l")
HANDLE_LIBCALL(EXP2_F128, "exp2f128")
HANDLE_LIBCALL(EXP2_PPCF128, "exp2l")
HANDLE_LIBCALL(EXP2_FINITE_F32, "__exp2f_finite")
HANDLE_LIBCALL(EXP2_FINITE_F64, "__exp2_finite")
HANDLE_LIBCALL(EXP2_FINITE_F80, "__exp2l_finite")
HANDLE_LIBCALL(EXP2_FINITE_F128, "__exp2l_finite")
HANDLE_LIBCALL(EXP2_FINITE_F128, "__exp2f128_finite")
HANDLE_LIBCALL(EXP2_FINITE_PPCF128, "__exp2l_finite")
HANDLE_LIBCALL(EXP10_F32, "exp10f")
HANDLE_LIBCALL(EXP10_F64, "exp10")
HANDLE_LIBCALL(EXP10_F80, "exp10l")
HANDLE_LIBCALL(EXP10_F128, "exp10l")
HANDLE_LIBCALL(EXP10_F128, "exp10f128")
HANDLE_LIBCALL(EXP10_PPCF128, "exp10l")
HANDLE_LIBCALL(SIN_F32, "sinf")
HANDLE_LIBCALL(SIN_F64, "sin")
HANDLE_LIBCALL(SIN_F80, "sinl")
HANDLE_LIBCALL(SIN_F128, "sinl")
HANDLE_LIBCALL(SIN_F128, "sinf128")
HANDLE_LIBCALL(SIN_PPCF128, "sinl")
HANDLE_LIBCALL(COS_F32, "cosf")
HANDLE_LIBCALL(COS_F64, "cos")
HANDLE_LIBCALL(COS_F80, "cosl")
HANDLE_LIBCALL(COS_F128, "cosl")
HANDLE_LIBCALL(COS_F128, "cosf128")
HANDLE_LIBCALL(COS_PPCF128, "cosl")
HANDLE_LIBCALL(TAN_F32, "tanf")
HANDLE_LIBCALL(TAN_F64, "tan")
HANDLE_LIBCALL(TAN_F80, "tanl")
HANDLE_LIBCALL(TAN_F128,"tanl")
HANDLE_LIBCALL(TAN_F128,"tanf128")
HANDLE_LIBCALL(TAN_PPCF128, "tanl")
HANDLE_LIBCALL(SINH_F32, "sinhf")
HANDLE_LIBCALL(SINH_F64, "sinh")
HANDLE_LIBCALL(SINH_F80, "sinhl")
HANDLE_LIBCALL(SINH_F128, "sinhl")
HANDLE_LIBCALL(SINH_F128, "sinhf128")
HANDLE_LIBCALL(SINH_PPCF128, "sinhl")
HANDLE_LIBCALL(COSH_F32, "coshf")
HANDLE_LIBCALL(COSH_F64, "cosh")
HANDLE_LIBCALL(COSH_F80, "coshl")
HANDLE_LIBCALL(COSH_F128, "coshl")
HANDLE_LIBCALL(COSH_F128, "coshf128")
HANDLE_LIBCALL(COSH_PPCF128, "coshl")
HANDLE_LIBCALL(TANH_F32, "tanhf")
HANDLE_LIBCALL(TANH_F64, "tanh")
HANDLE_LIBCALL(TANH_F80, "tanhl")
HANDLE_LIBCALL(TANH_F128,"tanhl")
HANDLE_LIBCALL(TANH_F128,"tanhf128")
HANDLE_LIBCALL(TANH_PPCF128, "tanhl")
HANDLE_LIBCALL(ASIN_F32, "asinf")
HANDLE_LIBCALL(ASIN_F64, "asin")
HANDLE_LIBCALL(ASIN_F80, "asinl")
HANDLE_LIBCALL(ASIN_F128, "asinl")
HANDLE_LIBCALL(ASIN_F128, "asinf128")
HANDLE_LIBCALL(ASIN_PPCF128, "asinl")
HANDLE_LIBCALL(ACOS_F32, "acosf")
HANDLE_LIBCALL(ACOS_F64, "acos")
HANDLE_LIBCALL(ACOS_F80, "acosl")
HANDLE_LIBCALL(ACOS_F128, "acosl")
HANDLE_LIBCALL(ACOS_F128, "acosf128")
HANDLE_LIBCALL(ACOS_PPCF128, "acosl")
HANDLE_LIBCALL(ATAN_F32, "atanf")
HANDLE_LIBCALL(ATAN_F64, "atan")
HANDLE_LIBCALL(ATAN_F80, "atanl")
HANDLE_LIBCALL(ATAN_F128,"atanl")
HANDLE_LIBCALL(ATAN_F128,"atanf128")
HANDLE_LIBCALL(ATAN_PPCF128, "atanl")
HANDLE_LIBCALL(ATAN2_F32, "atan2f")
HANDLE_LIBCALL(ATAN2_F64, "atan2")
HANDLE_LIBCALL(ATAN2_F80, "atan2l")
HANDLE_LIBCALL(ATAN2_F128,"atan2l")
HANDLE_LIBCALL(ATAN2_F128,"atan2f128")
HANDLE_LIBCALL(ATAN2_PPCF128, "atan2l")
HANDLE_LIBCALL(SINCOS_F32, nullptr)
HANDLE_LIBCALL(SINCOS_F64, nullptr)
Expand All @@ -250,122 +251,122 @@ HANDLE_LIBCALL(SINCOS_STRET_F64, nullptr)
HANDLE_LIBCALL(POW_F32, "powf")
HANDLE_LIBCALL(POW_F64, "pow")
HANDLE_LIBCALL(POW_F80, "powl")
HANDLE_LIBCALL(POW_F128, "powl")
HANDLE_LIBCALL(POW_F128, "powf128")
HANDLE_LIBCALL(POW_PPCF128, "powl")
HANDLE_LIBCALL(POW_FINITE_F32, "__powf_finite")
HANDLE_LIBCALL(POW_FINITE_F64, "__pow_finite")
HANDLE_LIBCALL(POW_FINITE_F80, "__powl_finite")
HANDLE_LIBCALL(POW_FINITE_F128, "__powl_finite")
HANDLE_LIBCALL(POW_FINITE_F128, "__powf128_finite")
HANDLE_LIBCALL(POW_FINITE_PPCF128, "__powl_finite")
HANDLE_LIBCALL(CEIL_F32, "ceilf")
HANDLE_LIBCALL(CEIL_F64, "ceil")
HANDLE_LIBCALL(CEIL_F80, "ceill")
HANDLE_LIBCALL(CEIL_F128, "ceill")
HANDLE_LIBCALL(CEIL_F128, "ceilf128")
HANDLE_LIBCALL(CEIL_PPCF128, "ceill")
HANDLE_LIBCALL(TRUNC_F32, "truncf")
HANDLE_LIBCALL(TRUNC_F64, "trunc")
HANDLE_LIBCALL(TRUNC_F80, "truncl")
HANDLE_LIBCALL(TRUNC_F128, "truncl")
HANDLE_LIBCALL(TRUNC_F128, "truncf128")
HANDLE_LIBCALL(TRUNC_PPCF128, "truncl")
HANDLE_LIBCALL(RINT_F32, "rintf")
HANDLE_LIBCALL(RINT_F64, "rint")
HANDLE_LIBCALL(RINT_F80, "rintl")
HANDLE_LIBCALL(RINT_F128, "rintl")
HANDLE_LIBCALL(RINT_F128, "rintf128")
HANDLE_LIBCALL(RINT_PPCF128, "rintl")
HANDLE_LIBCALL(NEARBYINT_F32, "nearbyintf")
HANDLE_LIBCALL(NEARBYINT_F64, "nearbyint")
HANDLE_LIBCALL(NEARBYINT_F80, "nearbyintl")
HANDLE_LIBCALL(NEARBYINT_F128, "nearbyintl")
HANDLE_LIBCALL(NEARBYINT_F128, "nearbyintf128")
HANDLE_LIBCALL(NEARBYINT_PPCF128, "nearbyintl")
HANDLE_LIBCALL(ROUND_F32, "roundf")
HANDLE_LIBCALL(ROUND_F64, "round")
HANDLE_LIBCALL(ROUND_F80, "roundl")
HANDLE_LIBCALL(ROUND_F128, "roundl")
HANDLE_LIBCALL(ROUND_F128, "roundf128")
HANDLE_LIBCALL(ROUND_PPCF128, "roundl")
HANDLE_LIBCALL(ROUNDEVEN_F32, "roundevenf")
HANDLE_LIBCALL(ROUNDEVEN_F64, "roundeven")
HANDLE_LIBCALL(ROUNDEVEN_F80, "roundevenl")
HANDLE_LIBCALL(ROUNDEVEN_F128, "roundevenl")
HANDLE_LIBCALL(ROUNDEVEN_F128, "roundevenf128")
HANDLE_LIBCALL(ROUNDEVEN_PPCF128, "roundevenl")
HANDLE_LIBCALL(FLOOR_F32, "floorf")
HANDLE_LIBCALL(FLOOR_F64, "floor")
HANDLE_LIBCALL(FLOOR_F80, "floorl")
HANDLE_LIBCALL(FLOOR_F128, "floorl")
HANDLE_LIBCALL(FLOOR_F128, "floorf128")
HANDLE_LIBCALL(FLOOR_PPCF128, "floorl")
HANDLE_LIBCALL(COPYSIGN_F32, "copysignf")
HANDLE_LIBCALL(COPYSIGN_F64, "copysign")
HANDLE_LIBCALL(COPYSIGN_F80, "copysignl")
HANDLE_LIBCALL(COPYSIGN_F128, "copysignl")
HANDLE_LIBCALL(COPYSIGN_F128, "copysignf128")
HANDLE_LIBCALL(COPYSIGN_PPCF128, "copysignl")
HANDLE_LIBCALL(FMIN_F32, "fminf")
HANDLE_LIBCALL(FMIN_F64, "fmin")
HANDLE_LIBCALL(FMIN_F80, "fminl")
HANDLE_LIBCALL(FMIN_F128, "fminl")
HANDLE_LIBCALL(FMIN_F128, "fminf128")
HANDLE_LIBCALL(FMIN_PPCF128, "fminl")
HANDLE_LIBCALL(FMAX_F32, "fmaxf")
HANDLE_LIBCALL(FMAX_F64, "fmax")
HANDLE_LIBCALL(FMAX_F80, "fmaxl")
HANDLE_LIBCALL(FMAX_F128, "fmaxl")
HANDLE_LIBCALL(FMAX_F128, "fmaxf128")
HANDLE_LIBCALL(FMAX_PPCF128, "fmaxl")
HANDLE_LIBCALL(FMINIMUM_F32, "fminimumf")
HANDLE_LIBCALL(FMINIMUM_F64, "fminimum")
HANDLE_LIBCALL(FMINIMUM_F80, "fminimuml")
HANDLE_LIBCALL(FMINIMUM_F128, "fminimuml")
HANDLE_LIBCALL(FMINIMUM_F128, "fminimumf128")
HANDLE_LIBCALL(FMINIMUM_PPCF128, "fminimuml")
HANDLE_LIBCALL(FMAXIMUM_F32, "fmaximumf")
HANDLE_LIBCALL(FMAXIMUM_F64, "fmaximum")
HANDLE_LIBCALL(FMAXIMUM_F80, "fmaximuml")
HANDLE_LIBCALL(FMAXIMUM_F128, "fmaximuml")
HANDLE_LIBCALL(FMAXIMUM_F128, "fmaximumf128")
HANDLE_LIBCALL(FMAXIMUM_PPCF128, "fmaximum_numl")
HANDLE_LIBCALL(FMINIMUMNUM_F32, "fminimum_numf")
HANDLE_LIBCALL(FMINIMUMNUM_F64, "fminimum_num")
HANDLE_LIBCALL(FMINIMUMNUM_F80, "fminimum_numl")
HANDLE_LIBCALL(FMINIMUMNUM_F128, "fminimum_numl")
HANDLE_LIBCALL(FMINIMUMNUM_F128, "fminimum_numf128")
HANDLE_LIBCALL(FMINIMUMNUM_PPCF128, "fminimum_numl")
HANDLE_LIBCALL(FMAXIMUMNUM_F32, "fmaximum_numf")
HANDLE_LIBCALL(FMAXIMUMNUM_F64, "fmaximum_num")
HANDLE_LIBCALL(FMAXIMUMNUM_F80, "fmaximum_numl")
HANDLE_LIBCALL(FMAXIMUMNUM_F128, "fmaximum_numl")
HANDLE_LIBCALL(FMAXIMUMNUM_F128, "fmaximum_numf128")
HANDLE_LIBCALL(FMAXIMUMNUM_PPCF128, "fmaximum_numl")
HANDLE_LIBCALL(LROUND_F32, "lroundf")
HANDLE_LIBCALL(LROUND_F64, "lround")
HANDLE_LIBCALL(LROUND_F80, "lroundl")
HANDLE_LIBCALL(LROUND_F128, "lroundl")
HANDLE_LIBCALL(LROUND_F128, "lroundf128")
HANDLE_LIBCALL(LROUND_PPCF128, "lroundl")
HANDLE_LIBCALL(LLROUND_F32, "llroundf")
HANDLE_LIBCALL(LLROUND_F64, "llround")
HANDLE_LIBCALL(LLROUND_F80, "llroundl")
HANDLE_LIBCALL(LLROUND_F128, "llroundl")
HANDLE_LIBCALL(LLROUND_F128, "llroundf128")
HANDLE_LIBCALL(LLROUND_PPCF128, "llroundl")
HANDLE_LIBCALL(LRINT_F32, "lrintf")
HANDLE_LIBCALL(LRINT_F64, "lrint")
HANDLE_LIBCALL(LRINT_F80, "lrintl")
HANDLE_LIBCALL(LRINT_F128, "lrintl")
HANDLE_LIBCALL(LRINT_F128, "lrintf128")
HANDLE_LIBCALL(LRINT_PPCF128, "lrintl")
HANDLE_LIBCALL(LLRINT_F32, "llrintf")
HANDLE_LIBCALL(LLRINT_F64, "llrint")
HANDLE_LIBCALL(LLRINT_F80, "llrintl")
HANDLE_LIBCALL(LLRINT_F128, "llrintl")
HANDLE_LIBCALL(LLRINT_F128, "llrintf128")
HANDLE_LIBCALL(LLRINT_PPCF128, "llrintl")
HANDLE_LIBCALL(LDEXP_F32, "ldexpf")
HANDLE_LIBCALL(LDEXP_F64, "ldexp")
HANDLE_LIBCALL(LDEXP_F80, "ldexpl")
HANDLE_LIBCALL(LDEXP_F128, "ldexpl")
HANDLE_LIBCALL(LDEXP_F128, "ldexpf128")
HANDLE_LIBCALL(LDEXP_PPCF128, "ldexpl")
HANDLE_LIBCALL(FREXP_F32, "frexpf")
HANDLE_LIBCALL(FREXP_F64, "frexp")
HANDLE_LIBCALL(FREXP_F80, "frexpl")
HANDLE_LIBCALL(FREXP_F128, "frexpl")
HANDLE_LIBCALL(FREXP_F128, "frexpf128")
HANDLE_LIBCALL(FREXP_PPCF128, "frexpl")
HANDLE_LIBCALL(SINCOSPI_F32, "sincospif")
HANDLE_LIBCALL(SINCOSPI_F64, "sincospi")
HANDLE_LIBCALL(SINCOSPI_F80, "sincospil")
HANDLE_LIBCALL(SINCOSPI_F128, "sincospil")
HANDLE_LIBCALL(SINCOSPI_F128, "sincospif128")
HANDLE_LIBCALL(SINCOSPI_PPCF128, "sincospil")
HANDLE_LIBCALL(MODF_F32, "modff")
HANDLE_LIBCALL(MODF_F64, "modf")
HANDLE_LIBCALL(MODF_F80, "modfl")
HANDLE_LIBCALL(MODF_F128, "modfl")
HANDLE_LIBCALL(MODF_F128, "modff128")
HANDLE_LIBCALL(MODF_PPCF128, "modfl")

// Floating point environment
Expand Down
18 changes: 18 additions & 0 deletions llvm/include/llvm/IR/RuntimeLibcalls.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,17 @@
#include "llvm/TargetParser/Triple.h"

namespace llvm {

/// Library names to use for `fp128` libcalls.
enum class F128LibcallFormat {
/// C23 `*f128` lowering, e.g. `sinf128`
Default = 0,
/// `long double` *l` lowering, e.g. `sinl`.
LongDouble = 1,
// If needed, this could be extended with an option for `q` suffixes from
// libquadmath.
};

namespace RTLIB {

/// RTLIB::Libcall enum - This enum defines all of the runtime library calls
Expand Down Expand Up @@ -97,6 +108,13 @@ struct RuntimeLibcallsInfo {
/// Set default libcall names. If a target wants to opt-out of a libcall it
/// should be placed here.
void initLibcalls(const Triple &TT);

/// Set a specific lowering convention for `fp128` math libcalls.
///
/// By default, `fp128` math functions get lowered to the C23 `sinf128`-
/// style symbols. This allows overriding with `sinl`-style symbols on
/// platforms where `long double` is known to be identical to _Float128.
void setF128LibcallFormat(F128LibcallFormat Format);
};

} // namespace RTLIB
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