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author | xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2014-07-23 08:54:56 +0000 |
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committer | xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2014-07-23 08:54:56 +0000 |
commit | 2a0168fea37b68ad14e2cb60bf215111e49d4870 (patch) | |
tree | 2f59373790d8ce3a5df66ef7a692271cf0666c6c /powerpc/Archi.v | |
parent | 00805153cf9b88aa07cc6694b17d93f5ba2e7de8 (diff) | |
download | compcert-2a0168fea37b68ad14e2cb60bf215111e49d4870.tar.gz compcert-2a0168fea37b68ad14e2cb60bf215111e49d4870.zip |
Merge of "newspilling" branch:
- Support single-precision floats as first-class values
- Introduce chunks Many32, Many64 and types Tany32, Tany64 to
support saving and restoring registers without knowing
the exact types (int/single/float) of their contents, just
their sizes.
- Memory model: generalize the opaque encoding of pointers to
apply to any value, not just pointers, if chunks Many32/Many64
are selected.
- More properties of FP arithmetic proved.
git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2537 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
Diffstat (limited to 'powerpc/Archi.v')
-rw-r--r-- | powerpc/Archi.v | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/powerpc/Archi.v b/powerpc/Archi.v index 0b871d93..070f7cc9 100644 --- a/powerpc/Archi.v +++ b/powerpc/Archi.v @@ -25,10 +25,18 @@ Definition big_endian := true. Notation align_int64 := 8%Z (only parsing). Notation align_float64 := 8%Z (only parsing). -Program Definition default_pl : bool * nan_pl 53 := +Program Definition default_pl_64 : bool * nan_pl 53 := (false, nat_iter 51 xO xH). -Definition choose_binop_pl (s1: bool) (pl1: nan_pl 53) (s2: bool) (pl2: nan_pl 53) := +Definition choose_binop_pl_64 (s1: bool) (pl1: nan_pl 53) (s2: bool) (pl2: nan_pl 53) := false. (**r always choose first NaN *) -Global Opaque big_endian default_pl choose_binop_pl. +Program Definition default_pl_32 : bool * nan_pl 24 := + (false, nat_iter 22 xO xH). + +Definition choose_binop_pl_32 (s1: bool) (pl1: nan_pl 24) (s2: bool) (pl2: nan_pl 24) := + false. (**r always choose first NaN *) + +Global Opaque big_endian + default_pl_64 choose_binop_pl_64 + default_pl_32 choose_binop_pl_32. |