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split "JumpTableDirective" (an existing hack) into a PIC and nonPIC

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version.  This allows TAI implementations to specify the directive to use
based on the mode being codegen'd for.

The real fix for this is to remove JumpTableDirective, but I don't feel
like diving into the jumptable snarl just now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78709 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2009-08-11 20:30:58 +00:00
parent b3ac6e40d9
commit dfab291702
5 changed files with 12 additions and 15 deletions
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10
include/llvm/Target/TargetAsmInfo.h
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@ -184,9 +184,11 @@ namespace llvm {
//===--- Section Switching Directives ---------------------------------===//
/// JumpTableDirective - if non-null, the directive to emit before a jump
/// table.
/// JumpTableDirective - if non-null, the directive to emit before jump
/// table entries. FIXME: REMOVE THIS.
const char *JumpTableDirective;
const char *PICJumpTableDirective;
//===--- Global Variable Emission Directives --------------------------===//
@ -418,8 +420,8 @@ namespace llvm {
const char *getAscizDirective() const {
return AscizDirective;
}
const char *getJumpTableDirective() const {
return JumpTableDirective;
const char *getJumpTableDirective(bool isPIC) const {
return isPIC ? PICJumpTableDirective : JumpTableDirective;
}
const char *getAlignDirective() const {
return AlignDirective;

10
lib/Target/ARM/AsmPrinter/ARMAsmPrinter.cpp
View File

@ -923,9 +923,7 @@ void ARMAsmPrinter::printJTBlockOperand(const MachineInstr *MI, int OpNum) {
O << TAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
<< '_' << JTI << '_' << MO2.getImm() << ":\n";
const char *JTEntryDirective = TAI->getJumpTableDirective();
if (!JTEntryDirective)
JTEntryDirective = TAI->getData32bitsDirective();
const char *JTEntryDirective = TAI->getData32bitsDirective();
const MachineFunction *MF = MI->getParent()->getParent();
const MachineJumpTableInfo *MJTI = MF->getJumpTableInfo();
@ -947,10 +945,8 @@ void ARMAsmPrinter::printJTBlockOperand(const MachineInstr *MI, int OpNum) {
<< "_set_" << MBB->getNumber();
else if (TM.getRelocationModel() == Reloc::PIC_) {
printBasicBlockLabel(MBB, false, false, false);
// If the arch uses custom Jump Table directives, don't calc relative to JT
if (!TAI->getJumpTableDirective())
O << '-' << TAI->getPrivateGlobalPrefix() << "JTI"
<< getFunctionNumber() << '_' << JTI << '_' << MO2.getImm();
O << '-' << TAI->getPrivateGlobalPrefix() << "JTI"
<< getFunctionNumber() << '_' << JTI << '_' << MO2.getImm();
} else {
printBasicBlockLabel(MBB, false, false, false);
}

2
lib/Target/Alpha/AlphaTargetAsmInfo.cpp
View File

@ -17,6 +17,6 @@ using namespace llvm;
AlphaTargetAsmInfo::AlphaTargetAsmInfo() {
AlignmentIsInBytes = false;
PrivateGlobalPrefix = "$";
JumpTableDirective = ".gprel32";
PICJumpTableDirective = ".gprel32";
WeakRefDirective = "\t.weak\t";
}

4
lib/Target/Mips/MipsTargetAsmInfo.cpp
View File

@ -24,7 +24,5 @@ MipsTargetAsmInfo::MipsTargetAsmInfo(const MipsTargetMachine &TM) {
PrivateGlobalPrefix = "$";
CommentString = "#";
ZeroDirective = "\t.space\t";
if (TM.getRelocationModel() == Reloc::PIC_)
JumpTableDirective = "\t.gpword\t";
PICJumpTableDirective = "\t.gpword\t";
}

1
lib/Target/TargetAsmInfo.cpp
View File

@ -54,6 +54,7 @@ TargetAsmInfo::TargetAsmInfo() {
AlignmentIsInBytes = true;
TextAlignFillValue = 0;
JumpTableDirective = 0;
PICJumpTableDirective = 0;
GlobalDirective = "\t.globl\t";
SetDirective = 0;
LCOMMDirective = 0;