[PATCH] D137439: [RISCV] Remove some unneeded widening FP vector pseudo instructions. NFC

[Craig Topper via Phabricator via llvm-commits]

craig.topper created this revision.
craig.topper added reviewers: michaelmaitland, frasercrmck, rogfer01, kito-cheng.
Herald added subscribers: sunshaoce, VincentWu, StephenFan, vkmr, evandro, luismarques, apazos, sameer.abuasal, s.egerton, Jim, benna, psnobl, jocewei, PkmX, the_o, brucehoult, MartinMosbeck, edward-jones, zzheng, jrtc27, shiva0217, niosHD, sabuasal, simoncook, johnrusso, rbar, asb, hiraditya, arichardson.
Herald added a project: All.
craig.topper requested review of this revision.
Herald added subscribers: pcwang-thead, eopXD, MaskRay.
Herald added a project: LLVM.

We don't need LMUL=8 versions of these.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D137439

Files:
  llvm/lib/Target/RISCV/RISCVInstrInfoVPseudos.td


Index: llvm/lib/Target/RISCV/RISCVInstrInfoVPseudos.td
===================================================================
--- llvm/lib/Target/RISCV/RISCVInstrInfoVPseudos.td
+++ llvm/lib/Target/RISCV/RISCVInstrInfoVPseudos.td
@@ -120,15 +120,17 @@
                            !eq(eew, 64) : [V_M1, V_M2, V_M4, V_M8]);
 }
 
-class FPR_Info<RegisterClass regclass, string fx, list<LMULInfo> mxlist> {
+class FPR_Info<RegisterClass regclass, string fx, list<LMULInfo> mxlist,
+               list<LMULInfo> mxlistfw> {
   RegisterClass fprclass = regclass;
   string FX = fx;
   list<LMULInfo> MxList = mxlist;
+  list<LMULInfo> MxListFW = mxlistfw;
 }
 
-def SCALAR_F16 : FPR_Info<FPR16, "F16", MxSet<16>.m>;
-def SCALAR_F32 : FPR_Info<FPR32, "F32", MxSet<32>.m>;
-def SCALAR_F64 : FPR_Info<FPR64, "F64", MxSet<64>.m>;
+def SCALAR_F16 : FPR_Info<FPR16, "F16", MxSet<16>.m, [V_MF4, V_MF2, V_M1, V_M2, V_M4]>;
+def SCALAR_F32 : FPR_Info<FPR32, "F32", MxSet<32>.m, [V_MF2, V_M1, V_M2, V_M4]>;
+def SCALAR_F64 : FPR_Info<FPR64, "F64", MxSet<64>.m, []>;
 
 defvar FPList = [SCALAR_F16, SCALAR_F32, SCALAR_F64];
 
@@ -2012,7 +2014,7 @@
 
 multiclass VPseudoBinaryW_VF {
   foreach f = FPListW in
-    foreach m = f.MxList in
+    foreach m = f.MxListFW in
       defm "_V" # f.FX : VPseudoBinary<m.wvrclass, m.vrclass,
                                        f.fprclass, m,
                                        "@earlyclobber $rd">;
@@ -2040,7 +2042,7 @@
 
 multiclass VPseudoBinaryW_WF {
   foreach f = FPListW in
-    foreach m = f.MxList in
+    foreach m = f.MxListFW in
       defm "_W" # f.FX : VPseudoBinary<m.wvrclass, m.wvrclass,
                                        f.fprclass, m>;
 }
@@ -2868,7 +2870,7 @@
 multiclass VPseudoTernaryW_VF {
   defvar constraint = "@earlyclobber $rd";
   foreach f = FPListW in
-    foreach m = f.MxList in
+    foreach m = f.MxListFW in
       defm "_V" # f.FX : VPseudoTernaryWithPolicy<m.wvrclass, f.fprclass,
                                                   m.vrclass, m, constraint>;
 }


-------------- next part --------------
A non-text attachment was scrubbed...
Name: D137439.473261.patch
Type: text/x-patch
Size: 2035 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20221104/ffb99603/attachment.bin>