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CellSPU: 

- Update DWARF debugging support.

llvm-svn: 63059
This commit is contained in:
Scott Michel 2009-01-26 22:33:37 +00:00
parent 3789a13c30
commit 49483188c3
6 changed files with 75 additions and 70 deletions
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2
llvm/lib/Target/CellSPU/AsmPrinter/SPUAsmPrinter.cpp
View File

@ -602,8 +602,6 @@ bool LinuxAsmPrinter::doFinalization(Module &M) {
I != E; ++I)
printModuleLevelGV(I);
// TODO
// Emit initial debug information.
DW->EndModule();

60
llvm/lib/Target/CellSPU/SPUISelDAGToDAG.cpp
View File

@ -51,16 +51,6 @@ namespace {
return isS10Constant(CN->getSExtValue());
}
#if 0
//! SDNode predicate for sign-extended, 10-bit immediate values
bool
isI32IntS10Immediate(SDNode *N)
{
return (N->getOpcode() == ISD::Constant
&& isI32IntS10Immediate(cast<ConstantSDNode>(N)));
}
#endif
//! ConstantSDNode predicate for i32 unsigned 10-bit immediate values
bool
isI32IntU10Immediate(ConstantSDNode *CN)
@ -79,8 +69,8 @@ namespace {
bool
isI16IntS10Immediate(SDNode *N)
{
return (N->getOpcode() == ISD::Constant
&& isI16IntS10Immediate(cast<ConstantSDNode>(N)));
ConstantSDNode *CN = dyn_cast<ConstantSDNode>(N);
return (CN != 0 && isI16IntS10Immediate(CN));
}
//! ConstantSDNode predicate for i16 unsigned 10-bit immediate values
@ -259,32 +249,21 @@ public:
SDNode *emitBuildVector(SDValue build_vec) {
MVT vecVT = build_vec.getValueType();
SDNode *bvNode = build_vec.getNode();
bool canBeSelected = false;
// Check to see if this vector can be represented as a CellSPU immediate
// constant.
if (vecVT == MVT::v8i16) {
if (SPU::get_vec_i16imm(bvNode, *CurDAG, MVT::i16).getNode() != 0) {
canBeSelected = true;
}
} else if (vecVT == MVT::v4i32) {
if ((SPU::get_vec_i16imm(bvNode, *CurDAG, MVT::i32).getNode() != 0)
|| (SPU::get_ILHUvec_imm(bvNode, *CurDAG, MVT::i32).getNode() != 0)
|| (SPU::get_vec_u18imm(bvNode, *CurDAG, MVT::i32).getNode() != 0)
|| (SPU::get_v4i32_imm(bvNode, *CurDAG).getNode() != 0)) {
canBeSelected = true;
}
} else if (vecVT == MVT::v2i64) {
if ((SPU::get_vec_i16imm(bvNode, *CurDAG, MVT::i64).getNode() != 0)
|| (SPU::get_ILHUvec_imm(bvNode, *CurDAG, MVT::i64).getNode() != 0)
|| (SPU::get_vec_u18imm(bvNode, *CurDAG, MVT::i64).getNode() != 0)) {
canBeSelected = true;
}
}
if (canBeSelected) {
// constant by invoking all of the instruction selection predicates:
if (((vecVT == MVT::v8i16) &&
(SPU::get_vec_i16imm(bvNode, *CurDAG, MVT::i16).getNode() != 0)) ||
((vecVT == MVT::v4i32) &&
((SPU::get_vec_i16imm(bvNode, *CurDAG, MVT::i32).getNode() != 0) ||
(SPU::get_ILHUvec_imm(bvNode, *CurDAG, MVT::i32).getNode() != 0) ||
(SPU::get_vec_u18imm(bvNode, *CurDAG, MVT::i32).getNode() != 0) ||
(SPU::get_v4i32_imm(bvNode, *CurDAG).getNode() != 0))) ||
((vecVT == MVT::v2i64) &&
((SPU::get_vec_i16imm(bvNode, *CurDAG, MVT::i64).getNode() != 0) ||
(SPU::get_ILHUvec_imm(bvNode, *CurDAG, MVT::i64).getNode() != 0) ||
(SPU::get_vec_u18imm(bvNode, *CurDAG, MVT::i64).getNode() != 0))))
return Select(build_vec);
}
// No, need to emit a constant pool spill:
std::vector<Constant*> CV;
@ -411,7 +390,7 @@ SPUDAGToDAGISel::InstructionSelect()
}
/*!
\arg Op The ISD instructio operand
\arg Op The ISD instruction operand
\arg N The address to be tested
\arg Base The base address
\arg Index The base address index
@ -790,9 +769,10 @@ SPUDAGToDAGISel::Select(SDValue Op) {
if ((Op0.getOpcode() == ISD::SRA || Op0.getOpcode() == ISD::SRL)
&& OpVT == MVT::i32
&& Op0.getValueType() == MVT::i64) {
// Catch the (truncate:i32 ([sra|srl]:i64 arg, c), where c >= 32 to
// take advantage of the fact that the upper 32 bits are in the
// i32 preferred slot and avoid all kinds of other shuffle gymnastics:
// Catch (truncate:i32 ([sra|srl]:i64 arg, c), where c >= 32
//
// Take advantage of the fact that the upper 32 bits are in the
// i32 preferred slot and avoid shuffle gymnastics:
ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Op0.getOperand(1));
if (CN != 0) {
unsigned shift_amt = unsigned(CN->getZExtValue());
@ -1113,8 +1093,8 @@ SDNode *SPUDAGToDAGISel::SelectI64Constant(SDValue& Op, MVT OpVT) {
// The degenerate case where the upper and lower bits in the splat are
// identical:
SDValue Op0 = i64vec.getOperand(0);
ReplaceUses(i64vec, Op0);
ReplaceUses(i64vec, Op0);
return CurDAG->getTargetNode(SPU::ORi64_v2i64, OpVT,
SDValue(emitBuildVector(Op0), 0));
} else if (i64vec.getOpcode() == SPUISD::SHUFB) {

7
llvm/lib/Target/CellSPU/SPUISelLowering.cpp
View File

@ -293,7 +293,7 @@ SPUTargetLowering::SPUTargetLowering(SPUTargetMachine &TM)
// FDIV on SPU requires custom lowering
setOperationAction(ISD::FDIV, MVT::f64, Expand); // to libcall
// SPU has [U|S]INT_TO_FP
// SPU has [U|S]INT_TO_FP for f32->i32, but not for f64->i32, f64->i64:
setOperationAction(ISD::SINT_TO_FP, MVT::i32, Custom);
setOperationAction(ISD::SINT_TO_FP, MVT::i16, Promote);
setOperationAction(ISD::SINT_TO_FP, MVT::i8, Promote);
@ -2281,6 +2281,7 @@ LowerByteImmed(SDValue Op, SelectionDAG &DAG) {
DAG.getNode(ISD::BUILD_VECTOR, VT, tcVec, tcVecSize));
}
}
// These operations (AND, OR, XOR) are legal, they just couldn't be custom
// lowered. Return the operation, rather than a null SDValue.
return Op;
@ -2417,7 +2418,7 @@ static SDValue LowerFP_TO_INT(SDValue Op, SelectionDAG &DAG,
return ExpandLibCall(LC, Op, DAG, false, Dummy, TLI);
}
return SDValue();
return Op; // return unmolested, legalized op
}
//! Lower ISD::SINT_TO_FP, ISD::UINT_TO_FP for i32
@ -2443,7 +2444,7 @@ static SDValue LowerINT_TO_FP(SDValue Op, SelectionDAG &DAG,
return ExpandLibCall(LC, Op, DAG, false, Dummy, TLI);
}
return SDValue();
return Op; // return unmolested, legalized
}
//! Lower ISD::SETCC

3
llvm/lib/Target/CellSPU/SPUInstrFormats.td
View File

@ -290,6 +290,9 @@ class RR_Int_v4i32<bits<11> opcode, string opc, InstrItinClass itin,
class Pseudo<dag OOL, dag IOL, string asmstr, list<dag> pattern>
: SPUInstr<OOL, IOL, asmstr, NoItinerary> {
let OutOperandList = OOL;
let InOperandList = IOL;
let AsmString = asmstr;
let Pattern = pattern;
let Inst{31-0} = 0;
}

5
llvm/lib/Target/CellSPU/SPUInstrInfo.td
View File

@ -35,9 +35,8 @@ let hasCtrlDep = 1, Defs = [R1], Uses = [R1] in {
//===----------------------------------------------------------------------===//
def DWARF_LOC : Pseudo<(outs), (ins i32imm:$line, i32imm:$col, i32imm:$file),
"${:comment} .loc $file, $line, $col",
[(dwarf_loc (i32 imm:$line), (i32 imm:$col),
(i32 imm:$file))]>;
".loc $file, $line, $col",
[(dwarf_loc (i32 imm:$line), (i32 imm:$col), (i32 imm:$file))]>;
//===----------------------------------------------------------------------===//
// Loads:

24
llvm/lib/Target/CellSPU/SPUTargetAsmInfo.cpp
View File

@ -15,8 +15,10 @@
#include "SPUTargetMachine.h"
#include "llvm/Function.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/Dwarf.h"
using namespace llvm;
using namespace llvm::dwarf;
SPULinuxTargetAsmInfo::SPULinuxTargetAsmInfo(const SPUTargetMachine &TM) :
SPUTargetAsmInfo<ELFTargetAsmInfo>(TM) {
@ -27,12 +29,34 @@ SPULinuxTargetAsmInfo::SPULinuxTargetAsmInfo(const SPUTargetMachine &TM) :
// This corresponds to what the gcc SPU compiler emits, for consistency.
CStringSection = ".rodata.str";
// Has leb128, .loc and .file
HasLEB128 = true;
HasDotLocAndDotFile = true;
// BSS section needs to be emitted as ".section"
BSSSection = "\t.section\t.bss";
BSSSection_ = getUnnamedSection("\t.section\t.bss",
SectionFlags::Writeable | SectionFlags::BSS,
true);
SupportsDebugInformation = true;
NeedsSet = true;
SupportsMacInfoSection = false;
DwarfAbbrevSection = "\t.section .debug_abbrev,\"\",@progbits";
DwarfInfoSection = "\t.section .debug_info,\"\",@progbits";
DwarfLineSection = "\t.section .debug_line,\"\",@progbits";
DwarfFrameSection = "\t.section .debug_frame,\"\",@progbits";
DwarfPubNamesSection = "\t.section .debug_pubnames,\"\",@progbits";
DwarfPubTypesSection = "\t.section .debug_pubtypes,\"\",progbits";
DwarfStrSection = "\t.section .debug_str,\"MS\",@progbits,1";
DwarfLocSection = "\t.section .debug_loc,\"\",@progbits";
DwarfARangesSection = "\t.section .debug_aranges,\"\",@progbits";
DwarfRangesSection = "\t.section .debug_ranges,\"\",@progbits";
DwarfMacInfoSection = "\t.section .debug_macinfo,\"\",progbits";
// Exception handling is not supported on CellSPU (think about it: you only
// have 256K for code+data. Would you support exception handling?)
SupportsExceptionHandling = false;
}
/// PreferredEHDataFormat - This hook allows the target to select data