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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 /ia32/Asm.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 'ia32/Asm.v')
-rw-r--r-- | ia32/Asm.v | 10 |
1 files changed, 5 insertions, 5 deletions
@@ -474,17 +474,17 @@ Definition exec_instr (c: code) (i: instruction) (rs: regset) (m: mem) : outcome | Pmovsd_fi rd n => Next (nextinstr (rs#rd <- (Vfloat n))) m | Pmovsd_fm rd a => - exec_load Mfloat64 m a rs rd + exec_load Mfloat64al32 m a rs rd | Pmovsd_mf a r1 => - exec_store Mfloat64 m a rs r1 + exec_store Mfloat64al32 m a rs r1 | Pfld_f r1 => Next (nextinstr (rs#ST0 <- (rs r1))) m | Pfld_m a => - exec_load Mfloat64 m a rs ST0 + exec_load Mfloat64al32 m a rs ST0 | Pfstp_f rd => Next (nextinstr (rs#rd <- (rs ST0) #ST0 <- Vundef)) m | Pfstp_m a => - exec_store Mfloat64 m a rs ST0 + exec_store Mfloat64al32 m a rs ST0 | Pxchg_rr r1 r2 => Next (nextinstr (rs#r1 <- (rs r2) #r2 <- (rs r1))) m (** Moves with conversion *) @@ -709,7 +709,7 @@ Inductive extcall_arg (rs: regset) (m: mem): loc -> val -> Prop := extcall_arg rs m (S (Outgoing ofs Tint)) v | extcall_arg_float_stack: forall ofs bofs v, bofs = Stacklayout.fe_ofs_arg + 4 * ofs -> - Mem.loadv Mfloat64 m (Val.add (rs (IR ESP)) (Vint (Int.repr bofs))) = Some v -> + Mem.loadv Mfloat64al32 m (Val.add (rs (IR ESP)) (Vint (Int.repr bofs))) = Some v -> extcall_arg rs m (S (Outgoing ofs Tfloat)) v. Definition extcall_arguments |