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simplify code and reduce indentation.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100369 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2010-04-04 23:31:58 +00:00
parent 6189ed10c1
commit 786d17a0cf
1 changed files with 30 additions and 33 deletions
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63
lib/CodeGen/AsmPrinter/DwarfPrinter.cpp
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@ -70,43 +70,40 @@ void DwarfPrinter::EmitFrameMoves(MCSymbol *BaseLabel,
// If advancing cfa.
if (Dst.isReg() && Dst.getReg() == MachineLocation::VirtualFP) {
if (!Src.isReg()) {
if (Src.getReg() == MachineLocation::VirtualFP) {
Asm->EmitCFAByte(dwarf::DW_CFA_def_cfa_offset);
} else {
Asm->EmitCFAByte(dwarf::DW_CFA_def_cfa);
Asm->EmitULEB128(RI->getDwarfRegNum(Src.getReg(), isEH), "Register");
}
assert(!Src.isReg() && "Machine move not supported yet.");
int Offset = -Src.getOffset();
Asm->EmitULEB128(Offset, "Offset");
if (Src.getReg() == MachineLocation::VirtualFP) {
Asm->EmitCFAByte(dwarf::DW_CFA_def_cfa_offset);
} else {
llvm_unreachable("Machine move not supported yet.");
}
} else if (Src.isReg() &&
Src.getReg() == MachineLocation::VirtualFP) {
if (Dst.isReg()) {
Asm->EmitCFAByte(dwarf::DW_CFA_def_cfa_register);
Asm->EmitULEB128(RI->getDwarfRegNum(Dst.getReg(), isEH), "Register");
} else {
llvm_unreachable("Machine move not supported yet.");
Asm->EmitCFAByte(dwarf::DW_CFA_def_cfa);
Asm->EmitULEB128(RI->getDwarfRegNum(Src.getReg(), isEH), "Register");
}
Asm->EmitULEB128(-Src.getOffset(), "Offset");
continue;
}
if (Src.isReg() && Src.getReg() == MachineLocation::VirtualFP) {
assert(Dst.isReg() && "Machine move not supported yet.");
Asm->EmitCFAByte(dwarf::DW_CFA_def_cfa_register);
Asm->EmitULEB128(RI->getDwarfRegNum(Dst.getReg(), isEH), "Register");
continue;
}
unsigned Reg = RI->getDwarfRegNum(Src.getReg(), isEH);
int Offset = Dst.getOffset() / stackGrowth;
if (Offset < 0) {
Asm->EmitCFAByte(dwarf::DW_CFA_offset_extended_sf);
Asm->EmitULEB128(Reg, "Reg");
Asm->EmitSLEB128(Offset, "Offset");
} else if (Reg < 64) {
Asm->EmitCFAByte(dwarf::DW_CFA_offset + Reg);
Asm->EmitULEB128(Offset, "Offset");
} else {
unsigned Reg = RI->getDwarfRegNum(Src.getReg(), isEH);
int Offset = Dst.getOffset() / stackGrowth;
if (Offset < 0) {
Asm->EmitCFAByte(dwarf::DW_CFA_offset_extended_sf);
Asm->EmitULEB128(Reg, "Reg");
Asm->EmitSLEB128(Offset, "Offset");
} else if (Reg < 64) {
Asm->EmitCFAByte(dwarf::DW_CFA_offset + Reg);
Asm->EmitULEB128(Offset, "Offset");
} else {
Asm->EmitCFAByte(dwarf::DW_CFA_offset_extended);
Asm->EmitULEB128(Reg, "Reg");
Asm->EmitULEB128(Offset, "Offset");
}
Asm->EmitCFAByte(dwarf::DW_CFA_offset_extended);
Asm->EmitULEB128(Reg, "Reg");
Asm->EmitULEB128(Offset, "Offset");
}
}
}