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| author | Bernhard Schommer <bschommer@users.noreply.github.com> | 2019-08-12 16:16:10 +0200 |
|---|---|---|
| committer | Xavier Leroy <xavierleroy@users.noreply.github.com> | 2019-08-12 16:16:10 +0200 |
| commit | 040d9c67942c73d875eec9a2ab131fbae6e8f984 (patch) | |
| tree | 13a98dd663fb8b7a7824d3fc629a9ab2e9301e98 /cfrontend/C2C.ml | |
| parent | 2ce5e496b8d4c838c87c9f00a84ed23d1abc26fc (diff) | |
| download | compcert-kvx-040d9c67942c73d875eec9a2ab131fbae6e8f984.tar.gz compcert-kvx-040d9c67942c73d875eec9a2ab131fbae6e8f984.zip | |
bswap builtins: give semantics to them, support bswap64 on all targets
* Added semantic for byte swap builtins
The `__builtin_bswap`, `__builtin_bswap16`, `__builtin_bswap32`, `__builtin_bswap64` builtin function are now standard builtin functions with a defined semantics.
The semantics is given in terms of the decode/encode functions used for the memory model.
* Added bswap64 expansion to PowerPC 32 bits.
* Added bswap64 expansion for ARM.
Diffstat (limited to 'cfrontend/C2C.ml')
| -rw-r--r-- | cfrontend/C2C.ml | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/cfrontend/C2C.ml b/cfrontend/C2C.ml index 2e6bbe67..c1dfa9f4 100644 --- a/cfrontend/C2C.ml +++ b/cfrontend/C2C.ml @@ -161,7 +161,9 @@ let builtins_generic = { @ [ (* Integer arithmetic *) - "__builtin_bswap", + "__builtin_bswap64", + (TInt(IULongLong, []), [TInt(IULongLong, [])], false); + "__builtin_bswap", (TInt(IUInt, []), [TInt(IUInt, [])], false); "__builtin_bswap32", (TInt(IUInt, []), [TInt(IUInt, [])], false); |