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| author | Stephen Hines <srhines@google.com> | 2015-03-23 12:10:34 -0700 |
|---|---|---|
| committer | Stephen Hines <srhines@google.com> | 2015-03-23 12:10:34 -0700 |
| commit | ebe69fe11e48d322045d5949c83283927a0d790b (patch) | |
| tree | c92f1907a6b8006628a4b01615f38264d29834ea /include/llvm/Support/Casting.h | |
| parent | b7d2e72b02a4cb8034f32f8247a2558d2434e121 (diff) | |
| download | external_llvm-ebe69fe11e48d322045d5949c83283927a0d790b.tar.gz external_llvm-ebe69fe11e48d322045d5949c83283927a0d790b.tar.bz2 external_llvm-ebe69fe11e48d322045d5949c83283927a0d790b.zip | |
Update aosp/master LLVM for rebase to r230699.
Change-Id: I2b5be30509658cb8266be782de0ab24f9099f9b9
Diffstat (limited to 'include/llvm/Support/Casting.h')
| -rw-r--r-- | include/llvm/Support/Casting.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/include/llvm/Support/Casting.h b/include/llvm/Support/Casting.h index beed31a408..6ba5efa475 100644 --- a/include/llvm/Support/Casting.h +++ b/include/llvm/Support/Casting.h @@ -243,6 +243,26 @@ inline typename cast_retty<X, Y *>::ret_type cast(Y *Val) { // accepted. // template <class X, class Y> +LLVM_ATTRIBUTE_UNUSED_RESULT inline typename std::enable_if< + !is_simple_type<Y>::value, typename cast_retty<X, const Y>::ret_type>::type +cast_or_null(const Y &Val) { + if (!Val) + return nullptr; + assert(isa<X>(Val) && "cast_or_null<Ty>() argument of incompatible type!"); + return cast<X>(Val); +} + +template <class X, class Y> +LLVM_ATTRIBUTE_UNUSED_RESULT inline typename std::enable_if< + !is_simple_type<Y>::value, typename cast_retty<X, Y>::ret_type>::type +cast_or_null(Y &Val) { + if (!Val) + return nullptr; + assert(isa<X>(Val) && "cast_or_null<Ty>() argument of incompatible type!"); + return cast<X>(Val); +} + +template <class X, class Y> LLVM_ATTRIBUTE_UNUSED_RESULT inline typename cast_retty<X, Y *>::ret_type cast_or_null(Y *Val) { if (!Val) return nullptr; @@ -282,6 +302,20 @@ dyn_cast(Y *Val) { // value is accepted. // template <class X, class Y> +LLVM_ATTRIBUTE_UNUSED_RESULT inline typename std::enable_if< + !is_simple_type<Y>::value, typename cast_retty<X, const Y>::ret_type>::type +dyn_cast_or_null(const Y &Val) { + return (Val && isa<X>(Val)) ? cast<X>(Val) : nullptr; +} + +template <class X, class Y> +LLVM_ATTRIBUTE_UNUSED_RESULT inline typename std::enable_if< + !is_simple_type<Y>::value, typename cast_retty<X, Y>::ret_type>::type +dyn_cast_or_null(Y &Val) { + return (Val && isa<X>(Val)) ? cast<X>(Val) : nullptr; +} + +template <class X, class Y> LLVM_ATTRIBUTE_UNUSED_RESULT inline typename cast_retty<X, Y *>::ret_type dyn_cast_or_null(Y *Val) { return (Val && isa<X>(Val)) ? cast<X>(Val) : nullptr; |