Split the LdStGeneral PPC itin. class into LdStLoad and LdStStore.

Loads and stores can have different pipeline behavior, especially on
embedded chips. This change allows those differences to be expressed.
Except for the 440 scheduler, there are no functionality changes.
On the 440, the latency adjustment is only by one cycle, and so this
probably does not affect much. Nevertheless, it will make a larger
difference in the future and this removes a FIXME from the 440 itin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153821 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 27 insertions, 27 deletions

diff --git a/lib/Target/PowerPC/PPCInstrInfo.td b/lib/Target/PowerPC/PPCInstrInfo.td
index 1b15df058c..3a6dbcaab3 100644
--- a/lib/Target/PowerPC/PPCInstrInfo.td
+++ b/lib/Target/PowerPC/PPCInstrInfo.td
@@ -640,7 +640,7 @@ def STWCX : XForm_1<31, 150, (outs), (ins GPRC:$rS, memrr:$dst),
                    isDOT;
 
 let isTerminator = 1, isBarrier = 1, hasCtrlDep = 1 in
-def TRAP  : XForm_24<31, 4, (outs), (ins), "trap", LdStGeneral, [(trap)]>;
+def TRAP  : XForm_24<31, 4, (outs), (ins), "trap", LdStLoad, [(trap)]>;
 
 //===----------------------------------------------------------------------===//
 // PPC32 Load Instructions.
@@ -649,17 +649,17 @@ def TRAP  : XForm_24<31, 4, (outs), (ins), "trap", LdStGeneral, [(trap)]>;
 // Unindexed (r+i) Loads. 
 let canFoldAsLoad = 1, PPC970_Unit = 2 in {
 def LBZ : DForm_1<34, (outs GPRC:$rD), (ins memri:$src),
-                  "lbz $rD, $src", LdStGeneral,
+                  "lbz $rD, $src", LdStLoad,
                   [(set GPRC:$rD, (zextloadi8 iaddr:$src))]>;
 def LHA : DForm_1<42, (outs GPRC:$rD), (ins memri:$src),
                   "lha $rD, $src", LdStLHA,
                   [(set GPRC:$rD, (sextloadi16 iaddr:$src))]>,
                   PPC970_DGroup_Cracked;
 def LHZ : DForm_1<40, (outs GPRC:$rD), (ins memri:$src),
-                  "lhz $rD, $src", LdStGeneral,
+                  "lhz $rD, $src", LdStLoad,
                   [(set GPRC:$rD, (zextloadi16 iaddr:$src))]>;
 def LWZ : DForm_1<32, (outs GPRC:$rD), (ins memri:$src),
-                  "lwz $rD, $src", LdStGeneral,
+                  "lwz $rD, $src", LdStLoad,
                   [(set GPRC:$rD, (load iaddr:$src))]>;
 
 def LFS : DForm_1<48, (outs F4RC:$rD), (ins memri:$src),
@@ -673,22 +673,22 @@ def LFD : DForm_1<50, (outs F8RC:$rD), (ins memri:$src),
 // Unindexed (r+i) Loads with Update (preinc).
 let mayLoad = 1 in {
 def LBZU : DForm_1<35, (outs GPRC:$rD, ptr_rc:$ea_result), (ins memri:$addr),
-                   "lbzu $rD, $addr", LdStGeneral,
+                   "lbzu $rD, $addr", LdStLoad,
                    []>, RegConstraint<"$addr.reg = $ea_result">,
                    NoEncode<"$ea_result">;
 
 def LHAU : DForm_1<43, (outs GPRC:$rD, ptr_rc:$ea_result), (ins memri:$addr),
-                   "lhau $rD, $addr", LdStGeneral,
+                   "lhau $rD, $addr", LdStLoad,
                    []>, RegConstraint<"$addr.reg = $ea_result">,
                    NoEncode<"$ea_result">;
 
 def LHZU : DForm_1<41, (outs GPRC:$rD, ptr_rc:$ea_result), (ins memri:$addr),
-                   "lhzu $rD, $addr", LdStGeneral,
+                   "lhzu $rD, $addr", LdStLoad,
                    []>, RegConstraint<"$addr.reg = $ea_result">,
                    NoEncode<"$ea_result">;
 
 def LWZU : DForm_1<33, (outs GPRC:$rD, ptr_rc:$ea_result), (ins memri:$addr),
-                   "lwzu $rD, $addr", LdStGeneral,
+                   "lwzu $rD, $addr", LdStLoad,
                    []>, RegConstraint<"$addr.reg = $ea_result">,
                    NoEncode<"$ea_result">;
 
@@ -708,25 +708,25 @@ def LFDU : DForm_1<51, (outs F8RC:$rD, ptr_rc:$ea_result), (ins memri:$addr),
 //
 let canFoldAsLoad = 1, PPC970_Unit = 2 in {
 def LBZX : XForm_1<31,  87, (outs GPRC:$rD), (ins memrr:$src),
-                   "lbzx $rD, $src", LdStGeneral,
+                   "lbzx $rD, $src", LdStLoad,
                    [(set GPRC:$rD, (zextloadi8 xaddr:$src))]>;
 def LHAX : XForm_1<31, 343, (outs GPRC:$rD), (ins memrr:$src),
                    "lhax $rD, $src", LdStLHA,
                    [(set GPRC:$rD, (sextloadi16 xaddr:$src))]>,
                    PPC970_DGroup_Cracked;
 def LHZX : XForm_1<31, 279, (outs GPRC:$rD), (ins memrr:$src),
-                   "lhzx $rD, $src", LdStGeneral,
+                   "lhzx $rD, $src", LdStLoad,
                    [(set GPRC:$rD, (zextloadi16 xaddr:$src))]>;
 def LWZX : XForm_1<31,  23, (outs GPRC:$rD), (ins memrr:$src),
-                   "lwzx $rD, $src", LdStGeneral,
+                   "lwzx $rD, $src", LdStLoad,
                    [(set GPRC:$rD, (load xaddr:$src))]>;
                    
                    
 def LHBRX : XForm_1<31, 790, (outs GPRC:$rD), (ins memrr:$src),
-                   "lhbrx $rD, $src", LdStGeneral,
+                   "lhbrx $rD, $src", LdStLoad,
                    [(set GPRC:$rD, (PPClbrx xoaddr:$src, i16))]>;
 def LWBRX : XForm_1<31,  534, (outs GPRC:$rD), (ins memrr:$src),
-                   "lwbrx $rD, $src", LdStGeneral,
+                   "lwbrx $rD, $src", LdStLoad,
                    [(set GPRC:$rD, (PPClbrx xoaddr:$src, i32))]>;
 
 def LFSX   : XForm_25<31, 535, (outs F4RC:$frD), (ins memrr:$src),
@@ -744,13 +744,13 @@ def LFDX   : XForm_25<31, 599, (outs F8RC:$frD), (ins memrr:$src),
 // Unindexed (r+i) Stores.
 let PPC970_Unit = 2 in {
 def STB  : DForm_1<38, (outs), (ins GPRC:$rS, memri:$src),
-                   "stb $rS, $src", LdStGeneral,
+                   "stb $rS, $src", LdStStore,
                    [(truncstorei8 GPRC:$rS, iaddr:$src)]>;
 def STH  : DForm_1<44, (outs), (ins GPRC:$rS, memri:$src),
-                   "sth $rS, $src", LdStGeneral,
+                   "sth $rS, $src", LdStStore,
                    [(truncstorei16 GPRC:$rS, iaddr:$src)]>;
 def STW  : DForm_1<36, (outs), (ins GPRC:$rS, memri:$src),
-                   "stw $rS, $src", LdStGeneral,
+                   "stw $rS, $src", LdStStore,
                    [(store GPRC:$rS, iaddr:$src)]>;
 def STFS : DForm_1<52, (outs), (ins F4RC:$rS, memri:$dst),
                    "stfs $rS, $dst", LdStUX,
@@ -764,33 +764,33 @@ def STFD : DForm_1<54, (outs), (ins F8RC:$rS, memri:$dst),
 let PPC970_Unit = 2 in {
 def STBU  : DForm_1a<39, (outs ptr_rc:$ea_res), (ins GPRC:$rS,
                              symbolLo:$ptroff, ptr_rc:$ptrreg),
-                    "stbu $rS, $ptroff($ptrreg)", LdStGeneral,
+                    "stbu $rS, $ptroff($ptrreg)", LdStStore,
                     [(set ptr_rc:$ea_res,
                           (pre_truncsti8 GPRC:$rS, ptr_rc:$ptrreg, 
                                          iaddroff:$ptroff))]>,
                     RegConstraint<"$ptrreg = $ea_res">, NoEncode<"$ea_res">;
 def STHU  : DForm_1a<45, (outs ptr_rc:$ea_res), (ins GPRC:$rS,
                              symbolLo:$ptroff, ptr_rc:$ptrreg),
-                    "sthu $rS, $ptroff($ptrreg)", LdStGeneral,
+                    "sthu $rS, $ptroff($ptrreg)", LdStStore,
                     [(set ptr_rc:$ea_res,
                         (pre_truncsti16 GPRC:$rS, ptr_rc:$ptrreg, 
                                         iaddroff:$ptroff))]>,
                     RegConstraint<"$ptrreg = $ea_res">, NoEncode<"$ea_res">;
 def STWU  : DForm_1a<37, (outs ptr_rc:$ea_res), (ins GPRC:$rS,
                              symbolLo:$ptroff, ptr_rc:$ptrreg),
-                    "stwu $rS, $ptroff($ptrreg)", LdStGeneral,
+                    "stwu $rS, $ptroff($ptrreg)", LdStStore,
                     [(set ptr_rc:$ea_res, (pre_store GPRC:$rS, ptr_rc:$ptrreg, 
                                                      iaddroff:$ptroff))]>,
                     RegConstraint<"$ptrreg = $ea_res">, NoEncode<"$ea_res">;
 def STFSU : DForm_1a<37, (outs ptr_rc:$ea_res), (ins F4RC:$rS,
                              symbolLo:$ptroff, ptr_rc:$ptrreg),
-                    "stfsu $rS, $ptroff($ptrreg)", LdStGeneral,
+                    "stfsu $rS, $ptroff($ptrreg)", LdStStore,
                     [(set ptr_rc:$ea_res, (pre_store F4RC:$rS,  ptr_rc:$ptrreg, 
                                           iaddroff:$ptroff))]>,
                     RegConstraint<"$ptrreg = $ea_res">, NoEncode<"$ea_res">;
 def STFDU : DForm_1a<37, (outs ptr_rc:$ea_res), (ins F8RC:$rS,
                              symbolLo:$ptroff, ptr_rc:$ptrreg),
-                    "stfdu $rS, $ptroff($ptrreg)", LdStGeneral,
+                    "stfdu $rS, $ptroff($ptrreg)", LdStStore,
                     [(set ptr_rc:$ea_res, (pre_store F8RC:$rS, ptr_rc:$ptrreg, 
                                           iaddroff:$ptroff))]>,
                     RegConstraint<"$ptrreg = $ea_res">, NoEncode<"$ea_res">;
@@ -801,29 +801,29 @@ def STFDU : DForm_1a<37, (outs ptr_rc:$ea_res), (ins F8RC:$rS,
 //
 let PPC970_Unit = 2 in {
 def STBX  : XForm_8<31, 215, (outs), (ins GPRC:$rS, memrr:$dst),
-                   "stbx $rS, $dst", LdStGeneral,
+                   "stbx $rS, $dst", LdStStore,
                    [(truncstorei8 GPRC:$rS, xaddr:$dst)]>, 
                    PPC970_DGroup_Cracked;
 def STHX  : XForm_8<31, 407, (outs), (ins GPRC:$rS, memrr:$dst),
-                   "sthx $rS, $dst", LdStGeneral,
+                   "sthx $rS, $dst", LdStStore,
                    [(truncstorei16 GPRC:$rS, xaddr:$dst)]>, 
                    PPC970_DGroup_Cracked;
 def STWX  : XForm_8<31, 151, (outs), (ins GPRC:$rS, memrr:$dst),
-                   "stwx $rS, $dst", LdStGeneral,
+                   "stwx $rS, $dst", LdStStore,
                    [(store GPRC:$rS, xaddr:$dst)]>,
                    PPC970_DGroup_Cracked;
                    
 let mayStore = 1 in {
 def STWUX : XForm_8<31, 183, (outs), (ins GPRC:$rS, GPRC:$rA, GPRC:$rB),
-                   "stwux $rS, $rA, $rB", LdStGeneral,
+                   "stwux $rS, $rA, $rB", LdStStore,
                    []>;
 }
 def STHBRX: XForm_8<31, 918, (outs), (ins GPRC:$rS, memrr:$dst),
-                   "sthbrx $rS, $dst", LdStGeneral,
+                   "sthbrx $rS, $dst", LdStStore,
                    [(PPCstbrx GPRC:$rS, xoaddr:$dst, i16)]>, 
                    PPC970_DGroup_Cracked;
 def STWBRX: XForm_8<31, 662, (outs), (ins GPRC:$rS, memrr:$dst),
-                   "stwbrx $rS, $dst", LdStGeneral,
+                   "stwbrx $rS, $dst", LdStStore,
                    [(PPCstbrx GPRC:$rS, xoaddr:$dst, i32)]>,
                    PPC970_DGroup_Cracked;