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| author | Xavier Leroy <xavier.leroy@college-de-france.fr> | 2021-04-25 13:57:47 +0200 |
|---|---|---|
| committer | Xavier Leroy <xavierleroy@users.noreply.github.com> | 2021-05-02 18:06:32 +0200 |
| commit | 320c55590cc30d4ef5b2c1a226f0f940a6bdb445 (patch) | |
| tree | ed6ad57e251e164fec31c57a6f2162daabc8305d /x86 | |
| parent | 38b0babd5a642cea8912524debc63edc67fda08b (diff) | |
| download | compcert-kvx-320c55590cc30d4ef5b2c1a226f0f940a6bdb445.tar.gz compcert-kvx-320c55590cc30d4ef5b2c1a226f0f940a6bdb445.zip | |
Support __builtin_unreachable
Not yet used for optimizations.
Diffstat (limited to 'x86')
| -rw-r--r-- | x86/Asmexpand.ml | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/x86/Asmexpand.ml b/x86/Asmexpand.ml index 14cbb373..d757d7c2 100644 --- a/x86/Asmexpand.ml +++ b/x86/Asmexpand.ml @@ -487,9 +487,12 @@ let expand_builtin_inline name args res = (* Synchronization *) | "__builtin_membar", [], _ -> () - (* no operation *) + (* No operation *) | "__builtin_nop", [], _ -> emit Pnop + (* Optimization hint *) + | "__builtin_unreachable", [], _ -> + () (* Catch-all *) | _ -> raise (Error ("unrecognized builtin " ^ name)) |