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add an option to turn on LSR.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26080 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2006-02-09 05:06:36 +00:00
parent 239862ce99
commit 9413678f91
2 changed files with 62 additions and 1 deletions
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56
lib/Target/Sparc/SparcInstrInfo.td
View File

@ -493,6 +493,7 @@ def UMULrr : F3_1<2, 0b001010,
def UMULri : F3_2<2, 0b001010,
(ops IntRegs:$dst, IntRegs:$b, i32imm:$c),
"umul $b, $c, $dst", []>;
def SMULrr : F3_1<2, 0b001011,
(ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
"smul $b, $c, $dst",
@ -502,6 +503,61 @@ def SMULri : F3_2<2, 0b001011,
"smul $b, $c, $dst",
[(set IntRegs:$dst, (mul IntRegs:$b, simm13:$c))]>;
/*
//===-------------------------
// Sparc Example
defm intinst<id OPC1, id OPC2, bits Opc, string asmstr, SDNode code> {
def OPC1 : F3_1<2, Opc, asmstr, (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
[(set IntRegs:$dst, (code IntRegs:$b, IntRegs:$c))]>;
def OPC2 : F3_2<2, Opc, asmstr, (ops IntRegs:$dst, IntRegs:$b, i32imm:$c),
[(set IntRegs:$dst, (code IntRegs:$b, simm13:$c))]>;
}
defm intinst_np<id OPC1, id OPC2, bits Opc, string asmstr> {
def OPC1 : F3_1<2, Opc, asmstr, (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
[]>;
def OPC2 : F3_2<2, Opc, asmstr, (ops IntRegs:$dst, IntRegs:$b, i32imm:$c),
[]>;
}
def intinstnp< ADDXrr, ADDXri, 0b001000, "addx $b, $c, $dst">;
def intinst < SUBrr, SUBri, 0b000100, "sub $b, $c, $dst", sub>;
def intinstnp< SUBXrr, SUBXri, 0b001100, "subx $b, $c, $dst">;
def intinst <SUBCCrr, SUBCCri, 0b010100, "subcc $b, $c, $dst", SPcmpicc>;
def intinst < SMULrr, SMULri, 0b001011, "smul $b, $c, $dst", mul>;
//===-------------------------
// X86 Example
defm cmov32<id OPC1, id OPC2, int opc, string asmstr, PatLeaf cond> {
def OPC1 : I<opc, MRMSrcReg, (ops R32:$dst, R32:$src1, R32:$src2),
asmstr+" {$src2, $dst|$dst, $src2}",
[(set R32:$dst, (X86cmov R32:$src1, R32:$src2, cond))]>, TB;
def OPC2 : I<opc, MRMSrcMem, (ops R32:$dst, R32:$src1, i32mem:$src2),
asmstr+" {$src2, $dst|$dst, $src2}",
[(set R32:$dst, (X86cmov R32:$src1,
(loadi32 addr:$src2), cond))]>, TB;
}
def cmov<CMOVL32rr, CMOVL32rm, 0x4C, "cmovl", X86_COND_L>;
def cmov<CMOVB32rr, CMOVB32rm, 0x4C, "cmovb", X86_COND_B>;
//===-------------------------
// PPC Example
def fpunop<id OPC1, id OPC2, id FORM, int op1, int op2, int op3, string asmstr,
SDNode code> {
def OPC1 : FORM<op1, op3, (ops F4RC:$frD, F4RC:$frB),
asmstr+" $frD, $frB", FPGeneral,
[(set F4RC:$frD, (code F4RC:$frB))]>;
def OPC2 : FORM<op2, op3, (ops F8RC:$frD, F8RC:$frB),
asmstr+" $frD, $frB", FPGeneral,
[(set F8RC:$frD, (code F8RC:$frB))]>;
}
def fpunop< FABSS, FABSD, XForm_26, 63, 63, 264, "fabs", fabs>;
def fpunop<FNABSS, FNABSD, XForm_26, 63, 63, 136, "fnabs", fnabs>;
def fpunop< FNEGS, FNEGD, XForm_26, 63, 63, 40, "fneg", fneg>;
*/
// Section B.19 - Divide Instructions, p. 115
def UDIVrr : F3_1<2, 0b001110,
(ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),

7
lib/Target/Sparc/SparcTargetMachine.cpp
View File

@ -27,6 +27,8 @@ using namespace llvm;
namespace {
// Register the target.
RegisterTarget<SparcTargetMachine> X("sparc", " SPARC");
cl::opt<bool> EnableLSR("enable-sparc-lsr", cl::Hidden);
}
/// SparcTargetMachine ctor - Create an ILP32 architecture model
@ -65,6 +67,9 @@ bool SparcTargetMachine::addPassesToEmitFile(PassManager &PM, std::ostream &Out,
bool Fast) {
if (FileType != TargetMachine::AssemblyFile) return true;
// Run loop strength reduction before anything else.
if (EnableLSR && !Fast) PM.add(createLoopStrengthReducePass());
// FIXME: Implement efficient support for garbage collection intrinsics.
PM.add(createLowerGCPass());
@ -73,7 +78,7 @@ bool SparcTargetMachine::addPassesToEmitFile(PassManager &PM, std::ostream &Out,
// FIXME: implement the switch instruction in the instruction selector.
PM.add(createLowerSwitchPass());
// Print LLVM code input to instruction selector:
if (PrintMachineCode)
PM.add(new PrintFunctionPass());