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| author | Tim Shen <timshen91@gmail.com> | 2017-01-27 02:11:07 +0000 |
|---|---|---|
| committer | Tim Shen <timshen91@gmail.com> | 2017-01-27 02:11:07 +0000 |
| commit | 601ba8c58362dc09c3ff36d88478a2fa098b88fe (patch) | |
| tree | 827a336eecc420af975f4f6031ab26c8a7272ea7 /llvm/lib/Support/APFloat.cpp | |
| parent | c5b2e00d0675df6cc0415442b0ff2c5ebb09d28d (diff) | |
| download | bcm5719-llvm-601ba8c58362dc09c3ff36d88478a2fa098b88fe.tar.gz bcm5719-llvm-601ba8c58362dc09c3ff36d88478a2fa098b88fe.zip | |
[APFloat] Reduce some dispatch boilerplates. NFC.
Summary: This is an attempt to reduce the verbose manual dispatching code in APFloat. This doesn't handle multiple dispatch on single discriminator (e.g. APFloat::add(const APFloat&)), nor handles multiple dispatch on multiple discriminators (e.g. APFloat::convert()).
Reviewers: hfinkel, echristo, jlebar
Subscribers: mehdi_amini, llvm-commits
Differential Revision: https://reviews.llvm.org/D29161
llvm-svn: 293255
Diffstat (limited to 'llvm/lib/Support/APFloat.cpp')
| -rw-r--r-- | llvm/lib/Support/APFloat.cpp | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/llvm/lib/Support/APFloat.cpp b/llvm/lib/Support/APFloat.cpp index 1349eb6ac0b..2fe3b070023 100644 --- a/llvm/lib/Support/APFloat.cpp +++ b/llvm/lib/Support/APFloat.cpp @@ -26,6 +26,15 @@ #include <cstring> #include <limits.h> +#define APFLOAT_DISPATCH_ON_SEMANTICS(METHOD_CALL) \ + do { \ + if (usesLayout<IEEEFloat>(getSemantics())) \ + return U.IEEE.METHOD_CALL; \ + if (usesLayout<DoubleAPFloat>(getSemantics())) \ + return U.Double.METHOD_CALL; \ + llvm_unreachable("Unexpected semantics"); \ + } while (false) + using namespace llvm; /// A macro used to combine two fcCategory enums into one key which can be used @@ -4418,11 +4427,7 @@ APFloat::Storage::Storage(IEEEFloat F, const fltSemantics &Semantics) { } APFloat::opStatus APFloat::convertFromString(StringRef Str, roundingMode RM) { - if (usesLayout<IEEEFloat>(getSemantics())) - return U.IEEE.convertFromString(Str, RM); - if (usesLayout<DoubleAPFloat>(getSemantics())) - return U.Double.convertFromString(Str, RM); - llvm_unreachable("Unexpected semantics"); + APFLOAT_DISPATCH_ON_SEMANTICS(convertFromString(Str, RM)); } hash_code hash_value(const APFloat &Arg) { @@ -4512,3 +4517,5 @@ APFloat::opStatus APFloat::convertToInteger(APSInt &result, } } // End llvm namespace + +#undef APFLOAT_DISPATCH_ON_SEMANTICS |
