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| author | Bernhard Schommer <bschommer@users.noreply.github.com> | 2017-05-03 11:18:32 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2017-05-03 11:18:32 +0200 |
| commit | 7873af34a9520ee5a8a6f10faddf3255a4ff02b2 (patch) | |
| tree | 74500c845c99b39ba91a5507656060dea60404ea /arm/Conventions1.v | |
| parent | 25ea686abc4cce13aba92196dbeb284f727b6e0e (diff) | |
| download | compcert-kvx-7873af34a9520ee5a8a6f10faddf3255a4ff02b2.tar.gz compcert-kvx-7873af34a9520ee5a8a6f10faddf3255a4ff02b2.zip | |
Hybrid 64bit/32bit PowerPC port
This commit adds code generation for 64bit PowerPC architectures which execute
32bit applications.
The main difference to the normal 32bit PowerPC port is that it uses the
available 64bit instructions instead of using the runtime library functions.
However pointers are still 32bit and the 32bit calling convention is used.
In order to use this port the target architecture must be either in Server
execution mode or if in Embedded execution mode the high order 32 bits of GPRs
must be implemented in 32-bit mode. Furthermore the operating system must
preserve the high order 32 bits of GPRs.
Diffstat (limited to 'arm/Conventions1.v')
| -rw-r--r-- | arm/Conventions1.v | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arm/Conventions1.v b/arm/Conventions1.v index ecf03e1d..86be8c95 100644 --- a/arm/Conventions1.v +++ b/arm/Conventions1.v @@ -60,6 +60,8 @@ Definition destroyed_at_call := Definition dummy_int_reg := R0. (**r Used in [Coloring]. *) Definition dummy_float_reg := F0. (**r Used in [Coloring]. *) +Definition callee_save_type := mreg_type. + Definition is_float_reg (r: mreg): bool := match r with | R0 | R1 | R2 | R3 @@ -136,7 +138,10 @@ Lemma loc_result_pair: forall sg, match loc_result sg with | One _ => True - | Twolong r1 r2 => r1 <> r2 /\ sg.(sig_res) = Some Tlong /\ subtype Tint (mreg_type r1) = true /\ subtype Tint (mreg_type r2) = true /\ Archi.splitlong = true + | Twolong r1 r2 => + r1 <> r2 /\ sg.(sig_res) = Some Tlong + /\ subtype Tint (mreg_type r1) = true /\ subtype Tint (mreg_type r2) = true + /\ Archi.ptr64 = false end. Proof. intros; unfold loc_result; destruct (sig_res sg) as [[]|]; destruct Archi.big_endian; auto. |