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Make __LDBL_MAX__ etc. have the correct type on targets where long double/double/etc. have the same format. PR14285.

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Based on patch by Jeroen Dobbelaere.

llvm-svn: 167649
This commit is contained in:
Eli Friedman
2012-11-10 00:20:38 +00:00
parent e2028139e9
commit c6d2fdbbb1
2 changed files with 68 additions and 68 deletions
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48
clang/lib/Frontend/InitPreprocessor.cpp
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@@ -116,51 +116,51 @@ static T PickFP(const llvm::fltSemantics *Sem, T IEEESingleVal,
}
static void DefineFloatMacros(MacroBuilder &Builder, StringRef Prefix,
const llvm::fltSemantics *Sem) {
const llvm::fltSemantics *Sem, StringRef Ext) {
const char *DenormMin, *Epsilon, *Max, *Min;
DenormMin = PickFP(Sem, "1.40129846e-45F", "4.9406564584124654e-324",
"3.64519953188247460253e-4951L",
"4.94065645841246544176568792868221e-324L",
"6.47517511943802511092443895822764655e-4966L");
DenormMin = PickFP(Sem, "1.40129846e-45", "4.9406564584124654e-324",
"3.64519953188247460253e-4951",
"4.94065645841246544176568792868221e-324",
"6.47517511943802511092443895822764655e-4966");
int Digits = PickFP(Sem, 6, 15, 18, 31, 33);
Epsilon = PickFP(Sem, "1.19209290e-7F", "2.2204460492503131e-16",
"1.08420217248550443401e-19L",
"4.94065645841246544176568792868221e-324L",
"1.92592994438723585305597794258492732e-34L");
Epsilon = PickFP(Sem, "1.19209290e-7", "2.2204460492503131e-16",
"1.08420217248550443401e-19",
"4.94065645841246544176568792868221e-324",
"1.92592994438723585305597794258492732e-34");
int MantissaDigits = PickFP(Sem, 24, 53, 64, 106, 113);
int Min10Exp = PickFP(Sem, -37, -307, -4931, -291, -4931);
int Max10Exp = PickFP(Sem, 38, 308, 4932, 308, 4932);
int MinExp = PickFP(Sem, -125, -1021, -16381, -968, -16381);
int MaxExp = PickFP(Sem, 128, 1024, 16384, 1024, 16384);
Min = PickFP(Sem, "1.17549435e-38F", "2.2250738585072014e-308",
"3.36210314311209350626e-4932L",
"2.00416836000897277799610805135016e-292L",
"3.36210314311209350626267781732175260e-4932L");
Max = PickFP(Sem, "3.40282347e+38F", "1.7976931348623157e+308",
"1.18973149535723176502e+4932L",
"1.79769313486231580793728971405301e+308L",
"1.18973149535723176508575932662800702e+4932L");
Min = PickFP(Sem, "1.17549435e-38", "2.2250738585072014e-308",
"3.36210314311209350626e-4932",
"2.00416836000897277799610805135016e-292",
"3.36210314311209350626267781732175260e-4932");
Max = PickFP(Sem, "3.40282347e+38", "1.7976931348623157e+308",
"1.18973149535723176502e+4932",
"1.79769313486231580793728971405301e+308",
"1.18973149535723176508575932662800702e+4932");
SmallString<32> DefPrefix;
DefPrefix = "__";
DefPrefix += Prefix;
DefPrefix += "_";
Builder.defineMacro(DefPrefix + "DENORM_MIN__", DenormMin);
Builder.defineMacro(DefPrefix + "DENORM_MIN__", Twine(DenormMin)+Ext);
Builder.defineMacro(DefPrefix + "HAS_DENORM__");
Builder.defineMacro(DefPrefix + "DIG__", Twine(Digits));
Builder.defineMacro(DefPrefix + "EPSILON__", Twine(Epsilon));
Builder.defineMacro(DefPrefix + "EPSILON__", Twine(Epsilon)+Ext);
Builder.defineMacro(DefPrefix + "HAS_INFINITY__");
Builder.defineMacro(DefPrefix + "HAS_QUIET_NAN__");
Builder.defineMacro(DefPrefix + "MANT_DIG__", Twine(MantissaDigits));
Builder.defineMacro(DefPrefix + "MAX_10_EXP__", Twine(Max10Exp));
Builder.defineMacro(DefPrefix + "MAX_EXP__", Twine(MaxExp));
Builder.defineMacro(DefPrefix + "MAX__", Twine(Max));
Builder.defineMacro(DefPrefix + "MAX__", Twine(Max)+Ext);
Builder.defineMacro(DefPrefix + "MIN_10_EXP__","("+Twine(Min10Exp)+")");
Builder.defineMacro(DefPrefix + "MIN_EXP__", "("+Twine(MinExp)+")");
Builder.defineMacro(DefPrefix + "MIN__", Twine(Min));
Builder.defineMacro(DefPrefix + "MIN__", Twine(Min)+Ext);
}
@@ -525,9 +525,9 @@ static void InitializePredefinedMacros(const TargetInfo &TI,
DefineType("__CHAR16_TYPE__", TI.getChar16Type(), Builder);
DefineType("__CHAR32_TYPE__", TI.getChar32Type(), Builder);
DefineFloatMacros(Builder, "FLT", &TI.getFloatFormat());
DefineFloatMacros(Builder, "DBL", &TI.getDoubleFormat());
DefineFloatMacros(Builder, "LDBL", &TI.getLongDoubleFormat());
DefineFloatMacros(Builder, "FLT", &TI.getFloatFormat(), "F");
DefineFloatMacros(Builder, "DBL", &TI.getDoubleFormat(), "");
DefineFloatMacros(Builder, "LDBL", &TI.getLongDoubleFormat(), "L");
// Define a __POINTER_WIDTH__ macro for stdint.h.
Builder.defineMacro("__POINTER_WIDTH__",