diff options
Diffstat (limited to 'lib/hipe/arm/hipe_arm_subst.erl')
| -rw-r--r-- | lib/hipe/arm/hipe_arm_subst.erl | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/lib/hipe/arm/hipe_arm_subst.erl b/lib/hipe/arm/hipe_arm_subst.erl index 7510c197bd..a41a907a4c 100644 --- a/lib/hipe/arm/hipe_arm_subst.erl +++ b/lib/hipe/arm/hipe_arm_subst.erl @@ -13,7 +13,7 @@ %% limitations under the License. -module(hipe_arm_subst). --export([insn_temps/2]). +-export([insn_temps/2, insn_lbls/2]). -include("hipe_arm.hrl"). %% These should be moved to hipe_arm and exported @@ -31,6 +31,7 @@ -type am3() :: #am3{}. -type arg() :: temp() | integer(). -type funv() :: #arm_mfa{} | #arm_prim{} | temp(). +-type label() :: non_neg_integer(). -type insn() :: tuple(). % for now -type subst_fun() :: fun((temp()) -> temp()). @@ -103,3 +104,22 @@ funv_temps(SubstTemp, T=#arm_temp{}) -> SubstTemp(T). -spec arg_temps(subst_fun(), arg()) -> arg(). arg_temps(_SubstTemp, Imm) when is_integer(Imm) -> Imm; arg_temps(SubstTemp, T=#arm_temp{}) -> SubstTemp(T). + +-type lbl_subst_fun() :: fun((label()) -> label()). + +%% @doc Maps over the branch targets in an instruction +-spec insn_lbls(lbl_subst_fun(), insn()) -> insn(). +insn_lbls(SubstLbl, I) -> + case I of + #b_label{label=Label} -> + I#b_label{label=SubstLbl(Label)}; + #pseudo_bc{true_label=T, false_label=F} -> + I#pseudo_bc{true_label=SubstLbl(T), false_label=SubstLbl(F)}; + #pseudo_call{sdesc=Sdesc, contlab=Contlab} -> + I#pseudo_call{sdesc=sdesc_lbls(SubstLbl, Sdesc), + contlab=SubstLbl(Contlab)} + end. + +sdesc_lbls(_SubstLbl, Sdesc=#arm_sdesc{exnlab=[]}) -> Sdesc; +sdesc_lbls(SubstLbl, Sdesc=#arm_sdesc{exnlab=Exnlab}) -> + Sdesc#arm_sdesc{exnlab=SubstLbl(Exnlab)}. |