diff options
Diffstat (limited to 'asmcomp/amd64/proc.ml')
| -rw-r--r-- | asmcomp/amd64/proc.ml | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/asmcomp/amd64/proc.ml b/asmcomp/amd64/proc.ml index b6e0fa94ab..cd06559e1e 100644 --- a/asmcomp/amd64/proc.ml +++ b/asmcomp/amd64/proc.ml @@ -259,7 +259,7 @@ let destroyed_at_oper = function | Iop(Iextcall(_, false)) -> destroyed_at_c_call | Iop(Iintop(Idiv | Imod)) | Iop(Iintop_imm((Idiv | Imod), _)) -> [| rax; rdx |] - | Iop(Istore(Single, _)) -> [| rxmm15 |] + | Iop(Istore(Single, _, _)) -> [| rxmm15 |] | Iop(Ialloc _ | Iintop(Imulh | Icomp _) | Iintop_imm((Icomp _), _)) -> [| rax |] | Iswitch(_, _) -> [| rax; rdx |] @@ -290,10 +290,21 @@ let max_register_pressure = function if fp then [| 10; 16 |] else [| 11; 16 |] | Ialloc _ | Iintop(Icomp _) | Iintop_imm((Icomp _), _) -> if fp then [| 11; 16 |] else [| 12; 16 |] - | Istore(Single, _) -> + | Istore(Single, _, _) -> if fp then [| 12; 15 |] else [| 13; 15 |] | _ -> if fp then [| 12; 16 |] else [| 13; 16 |] +(* Pure operations (without any side effect besides updating their result + registers). *) + +let op_is_pure = function + | Icall_ind | Icall_imm _ | Itailcall_ind | Itailcall_imm _ + | Iextcall _ | Istackoffset _ | Istore _ | Ialloc _ + | Iintop(Icheckbound) | Iintop_imm(Icheckbound, _) -> false + | Ispecific(Ilea _) -> true + | Ispecific _ -> false + | _ -> true + (* Layout of the stack frame *) let num_stack_slots = [| 0; 0 |] |