[PowerPC] Add support for the extended dcbf form and mnemonics
dcbf has an optional hint-like field, add support for the extended form and the
associated mnemonics (dcbfl and dcbflp).
Partially fixes PR24796.
llvm-svn: 280559
diff --git a/llvm/lib/Target/PowerPC/AsmParser/PPCAsmParser.cpp b/llvm/lib/Target/PowerPC/AsmParser/PPCAsmParser.cpp
index 48b1837..c7a871d 100644
--- a/llvm/lib/Target/PowerPC/AsmParser/PPCAsmParser.cpp
+++ b/llvm/lib/Target/PowerPC/AsmParser/PPCAsmParser.cpp
@@ -874,6 +874,23 @@
Inst = TmpInst;
break;
}
+ case PPC::DCBFx:
+ case PPC::DCBFL:
+ case PPC::DCBFLP: {
+ int L = 0;
+ if (Opcode == PPC::DCBFL)
+ L = 1;
+ else if (Opcode == PPC::DCBFLP)
+ L = 3;
+
+ MCInst TmpInst;
+ TmpInst.setOpcode(PPC::DCBF);
+ TmpInst.addOperand(MCOperand::createImm(L));
+ TmpInst.addOperand(Inst.getOperand(0));
+ TmpInst.addOperand(Inst.getOperand(1));
+ Inst = TmpInst;
+ break;
+ }
case PPC::LAx: {
MCInst TmpInst;
TmpInst.setOpcode(PPC::LA);
diff --git a/llvm/lib/Target/PowerPC/InstPrinter/PPCInstPrinter.cpp b/llvm/lib/Target/PowerPC/InstPrinter/PPCInstPrinter.cpp
index d9d9b4f..d1c4b59 100644
--- a/llvm/lib/Target/PowerPC/InstPrinter/PPCInstPrinter.cpp
+++ b/llvm/lib/Target/PowerPC/InstPrinter/PPCInstPrinter.cpp
@@ -135,6 +135,25 @@
printAnnotation(O, Annot);
return;
}
+
+ if (MI->getOpcode() == PPC::DCBF) {
+ unsigned char L = MI->getOperand(0).getImm();
+ if (!L || L == 1 || L == 3) {
+ O << "\tdcbf";
+ if (L == 1 || L == 3)
+ O << "l";
+ if (L == 3)
+ O << "p";
+ O << " ";
+
+ printOperand(MI, 1, O);
+ O << ", ";
+ printOperand(MI, 2, O);
+
+ printAnnotation(O, Annot);
+ return;
+ }
+ }
if (!printAliasInstr(MI, O))
printInstruction(MI, O);
diff --git a/llvm/lib/Target/PowerPC/PPCInstrInfo.td b/llvm/lib/Target/PowerPC/PPCInstrInfo.td
index cc4c453..a3e85dd 100644
--- a/llvm/lib/Target/PowerPC/PPCInstrInfo.td
+++ b/llvm/lib/Target/PowerPC/PPCInstrInfo.td
@@ -1448,9 +1448,6 @@
def DCBA : DCB_Form<758, 0, (outs), (ins memrr:$dst), "dcba $dst",
IIC_LdStDCBF, [(int_ppc_dcba xoaddr:$dst)]>,
PPC970_DGroup_Single;
-def DCBF : DCB_Form<86, 0, (outs), (ins memrr:$dst), "dcbf $dst",
- IIC_LdStDCBF, [(int_ppc_dcbf xoaddr:$dst)]>,
- PPC970_DGroup_Single;
def DCBI : DCB_Form<470, 0, (outs), (ins memrr:$dst), "dcbi $dst",
IIC_LdStDCBF, [(int_ppc_dcbi xoaddr:$dst)]>,
PPC970_DGroup_Single;
@@ -1464,6 +1461,10 @@
IIC_LdStDCBF, [(int_ppc_dcbzl xoaddr:$dst)]>,
PPC970_DGroup_Single;
+def DCBF : DCB_Form_hint<86, (outs), (ins u5imm:$TH, memrr:$dst),
+ "dcbf $dst, $TH", IIC_LdStDCBF, []>,
+ PPC970_DGroup_Single;
+
let hasSideEffects = 0, mayLoad = 1, mayStore = 1 in {
def DCBT : DCB_Form_hint<278, (outs), (ins u5imm:$TH, memrr:$dst),
"dcbt $dst, $TH", IIC_LdStDCBF, []>,
@@ -1480,6 +1481,8 @@
(DCBT 0, xoaddr:$dst)>;
def : Pat<(int_ppc_dcbtst xoaddr:$dst),
(DCBTST 0, xoaddr:$dst)>;
+def : Pat<(int_ppc_dcbf xoaddr:$dst),
+ (DCBF 0, xoaddr:$dst)>;
def : Pat<(prefetch xoaddr:$dst, (i32 0), imm, (i32 1)),
(DCBT 0, xoaddr:$dst)>; // data prefetch for loads
@@ -3820,6 +3823,10 @@
def DCBTSTDS : PPCAsmPseudo<"dcbtstds $dst, $TH", (ins memrr:$dst, u5imm:$TH)>;
def DCBTSTT : PPCAsmPseudo<"dcbtstt $dst", (ins memrr:$dst)>;
+def DCBFx : PPCAsmPseudo<"dcbf $dst", (ins memrr:$dst)>;
+def DCBFL : PPCAsmPseudo<"dcbfl $dst", (ins memrr:$dst)>;
+def DCBFLP : PPCAsmPseudo<"dcbflp $dst", (ins memrr:$dst)>;
+
def : InstAlias<"crset $bx", (CREQV crbitrc:$bx, crbitrc:$bx, crbitrc:$bx)>;
def : InstAlias<"crclr $bx", (CRXOR crbitrc:$bx, crbitrc:$bx, crbitrc:$bx)>;
def : InstAlias<"crmove $bx, $by", (CROR crbitrc:$bx, crbitrc:$by, crbitrc:$by)>;