diff options
| author | Xavier Leroy <xavier.leroy@college-de-france.fr> | 2020-12-06 10:30:51 +0100 |
|---|---|---|
| committer | Xavier Leroy <xavier.leroy@college-de-france.fr> | 2020-12-06 12:18:57 +0100 |
| commit | ef5477a47b49c405744319fbdef0a689b1bf03d4 (patch) | |
| tree | 47de3060e1e67749e67ec4d7b16046cb5227b1fc /powerpc/TargetPrinter.ml | |
| parent | e6e036b3f285d2f3ba2a5036a413eb9c7d7534cd (diff) | |
| download | compcert-kvx-ef5477a47b49c405744319fbdef0a689b1bf03d4.tar.gz compcert-kvx-ef5477a47b49c405744319fbdef0a689b1bf03d4.zip | |
Remove Pfcfi, Pfcfiu, Pfctiu pseudoinstructions
Also remove the Ofloatofint, Ofloatofintu, and Ointuoffloat
PowerPC operations.
The pseudoinstructions were used to implement these operations,
as follows:
Pfcfi : Ofloatofint i.e. the conversion signed int32 -> float64
Pfcfiu : Ofloatofintu i.e. the conversion unsigned int32 -> float64
Pfctiu : Ointuoffloat i.e. the conversion float64 -> unsigned int32
These pseudoinstructions were expanded (in Asmexpand.ml) in terms of
Pfcfid : signed int64 -> float64
Pfctidz : float64 -> signed int64
and int32/int64 conversions.
This commit performs this expansion during instruction selection
(SelectOp.vp):
floatofint(n) becomes floatoflong(longofint(n))
floatofintu(n) becomes floatoflong(longuofint(n))
intuoffloat(n) becomes cast32unsigned(longoffloat(n))
Then there is no need for the 3 removed operations and the 3 removed
pseudoinstructions.
More importantly, the correctness of these expansions is now proved as
part of instruction selection, using the corresponding results from
Floats.v.
Diffstat (limited to 'powerpc/TargetPrinter.ml')
| -rw-r--r-- | powerpc/TargetPrinter.ml | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/powerpc/TargetPrinter.ml b/powerpc/TargetPrinter.ml index 0f608d25..43d2447d 100644 --- a/powerpc/TargetPrinter.ml +++ b/powerpc/TargetPrinter.ml @@ -553,22 +553,16 @@ module Target (System : SYSTEM):TARGET = fprintf oc " fadds %a, %a, %a\n" freg r1 freg r2 freg r3 | Pfcmpu(r1, r2) -> fprintf oc " fcmpu %a, %a, %a\n" creg 0 freg r1 freg r2 - | Pfcfi(r1, r2) -> - assert false | Pfcfl(r1, r2) -> assert false | Pfcfid(r1, r2) -> fprintf oc " fcfid %a, %a\n" freg r1 freg r2 - | Pfcfiu(r1, r2) -> - assert false | Pfcti(r1, r2) -> assert false | Pfctid(r1, r2) -> assert false | Pfctidz(r1, r2) -> fprintf oc " fctidz %a, %a\n" freg r1 freg r2 - | Pfctiu(r1, r2) -> - assert false | Pfctiw(r1, r2) -> fprintf oc " fctiw %a, %a\n" freg r1 freg r2 | Pfctiwz(r1, r2) -> |