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author | xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2012-07-23 15:01:54 +0000 |
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committer | xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2012-07-23 15:01:54 +0000 |
commit | 4297fcb821c3188449b64184af73e41491a6118f (patch) | |
tree | 3f31e0bd4bcfa107a345c1670e65290e785ee091 /common/AST.v | |
parent | 7c9500e438384c6c0ce478c8c73b3887137ac924 (diff) | |
download | compcert-4297fcb821c3188449b64184af73e41491a6118f.tar.gz compcert-4297fcb821c3188449b64184af73e41491a6118f.zip |
- Revised non-overflow constraints on memory injections so that
injections compose (Values, Memdata, Memory)
- Memory chunks: Mfloat64 now has alignment 8; introduced Mfloat64al32
that works like old Mfloat64 (i.e. has alignment 4); simplified
handling of memcpy builtin accordingly.
git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1983 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
Diffstat (limited to 'common/AST.v')
-rw-r--r-- | common/AST.v | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/common/AST.v b/common/AST.v index bcd63a25..6425cb0f 100644 --- a/common/AST.v +++ b/common/AST.v @@ -80,7 +80,8 @@ Inductive memory_chunk : Type := | Mint16unsigned : memory_chunk (**r 16-bit unsigned integer *) | Mint32 : memory_chunk (**r 32-bit integer, or pointer *) | Mfloat32 : memory_chunk (**r 32-bit single-precision float *) - | Mfloat64 : memory_chunk. (**r 64-bit double-precision float *) + | Mfloat64 : memory_chunk (**r 64-bit double-precision float *) + | Mfloat64al32 : memory_chunk. (**r 64-bit double-precision float, 4-aligned *) (** The type (integer/pointer or float) of a chunk. *) @@ -93,6 +94,7 @@ Definition type_of_chunk (c: memory_chunk) : typ := | Mint32 => Tint | Mfloat32 => Tfloat | Mfloat64 => Tfloat + | Mfloat64al32 => Tfloat end. (** Initialization data for global variables. *) |