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| author | Xavier Leroy <xavier.leroy@college-de-france.fr> | 2020-12-06 16:46:42 +0100 |
|---|---|---|
| committer | Xavier Leroy <xavier.leroy@college-de-france.fr> | 2020-12-06 16:46:42 +0100 |
| commit | 0df99dc46209a9fe5026b83227ef73280f0dab70 (patch) | |
| tree | 3ca37306ef7cfab93525c2213256cb5b0565d8c9 /aarch64/Asm.v | |
| parent | ef5477a47b49c405744319fbdef0a689b1bf03d4 (diff) | |
| download | compcert-kvx-0df99dc46209a9fe5026b83227ef73280f0dab70.tar.gz compcert-kvx-0df99dc46209a9fe5026b83227ef73280f0dab70.zip | |
AArch64 modeling of registers destroyed by pseudo-instructions
Pfmovimms, Pfmovimmd destroy X16
Pbtbl preserves X17
Inlined built-in functions destroy X16 and X30
Diffstat (limited to 'aarch64/Asm.v')
| -rw-r--r-- | aarch64/Asm.v | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/aarch64/Asm.v b/aarch64/Asm.v index 5ac577b1..346cb649 100644 --- a/aarch64/Asm.v +++ b/aarch64/Asm.v @@ -970,9 +970,9 @@ Definition exec_instr (f: function) (i: instruction) (rs: regset) (m: mem) : out | Pfmov rd r1 => Next (nextinstr (rs#rd <- (rs#r1))) m | Pfmovimms rd f => - Next (nextinstr (rs#rd <- (Vsingle f))) m + Next (nextinstr (rs#X16 <- Vundef #rd <- (Vsingle f))) m | Pfmovimmd rd f => - Next (nextinstr (rs#rd <- (Vfloat f))) m + Next (nextinstr (rs#X16 <- Vundef #rd <- (Vfloat f))) m | Pfmovi S rd r1 => Next (nextinstr (rs#rd <- (float32_of_bits rs##r1))) m | Pfmovi D rd r1 => @@ -1097,7 +1097,7 @@ Definition exec_instr (f: function) (i: instruction) (rs: regset) (m: mem) : out | Vint n => match list_nth_z tbl (Int.unsigned n) with | None => Stuck - | Some lbl => goto_label f lbl (rs#X16 <- Vundef #X17 <- Vundef) m + | Some lbl => goto_label f lbl (rs#X16 <- Vundef) m end | _ => Stuck end @@ -1212,7 +1212,7 @@ Inductive step: state -> trace -> state -> Prop := external_call ef ge vargs m t vres m' -> rs' = nextinstr (set_res res vres - (undef_regs (map preg_of (destroyed_by_builtin ef)) rs)) -> + (undef_regs (IR X16 :: IR X30 :: map preg_of (destroyed_by_builtin ef)) rs)) -> step (State rs m) t (State rs' m') | exec_step_external: forall b ef args res rs m t rs' m', |