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[X86][BtVer2] Add the ability to add additional uops for folded instructions 

Some instructions take an extra load uop - but not consistently.....

llvm-svn: 343410
This commit is contained in:
Simon Pilgrim 2018-09-30 15:58:56 +00:00
parent 99f436b055
commit 9cec221a1c
1 changed files with 9 additions and 6 deletions
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15
llvm/lib/Target/X86/X86ScheduleBtVer2.td
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@ -100,7 +100,8 @@ def : ReadAdvance<ReadAfterLd, 3>;
// folded loads.
multiclass JWriteResIntPair<X86FoldableSchedWrite SchedRW,
list<ProcResourceKind> ExePorts,
int Lat, list<int> Res = [], int UOps = 1> {
int Lat, list<int> Res = [], int UOps = 1,
int LoadUOps = 0> {
// Register variant is using a single cycle on ExePort.
def : WriteRes<SchedRW, ExePorts> {
let Latency = Lat;
@ -113,13 +114,14 @@ multiclass JWriteResIntPair<X86FoldableSchedWrite SchedRW,
def : WriteRes<SchedRW.Folded, !listconcat([JLAGU], ExePorts)> {
let Latency = !add(Lat, 3);
let ResourceCycles = !if(!empty(Res), [], !listconcat([1], Res));
let NumMicroOps = UOps;
let NumMicroOps = !add(UOps, LoadUOps);
}
}
multiclass JWriteResFpuPair<X86FoldableSchedWrite SchedRW,
list<ProcResourceKind> ExePorts,
int Lat, list<int> Res = [], int UOps = 1> {
int Lat, list<int> Res = [], int UOps = 1,
int LoadUOps = 0> {
// Register variant is using a single cycle on ExePort.
def : WriteRes<SchedRW, ExePorts> {
let Latency = Lat;
@ -132,13 +134,14 @@ multiclass JWriteResFpuPair<X86FoldableSchedWrite SchedRW,
def : WriteRes<SchedRW.Folded, !listconcat([JLAGU], ExePorts)> {
let Latency = !add(Lat, 5);
let ResourceCycles = !if(!empty(Res), [], !listconcat([1], Res));
let NumMicroOps = UOps;
let NumMicroOps = !add(UOps, LoadUOps);
}
}
multiclass JWriteResYMMPair<X86FoldableSchedWrite SchedRW,
list<ProcResourceKind> ExePorts,
int Lat, list<int> Res = [2], int UOps = 2> {
int Lat, list<int> Res = [2], int UOps = 2,
int LoadUOps = 0> {
// Register variant is using a single cycle on ExePort.
def : WriteRes<SchedRW, ExePorts> {
let Latency = Lat;
@ -151,7 +154,7 @@ multiclass JWriteResYMMPair<X86FoldableSchedWrite SchedRW,
def : WriteRes<SchedRW.Folded, !listconcat([JLAGU], ExePorts)> {
let Latency = !add(Lat, 5);
let ResourceCycles = !listconcat([2], Res);
let NumMicroOps = UOps;
let NumMicroOps = !add(UOps, LoadUOps);
}
}