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Make a switch-case a function for the sake of simplicity.

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llvm-svn: 272975
This commit is contained in:
Rui Ueyama
2016-06-16 23:28:08 +00:00
parent e991a49587
commit 2f524fb7c7
1 changed files with 15 additions and 12 deletions
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27
lld/ELF/Target.cpp
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@@ -1007,21 +1007,24 @@ void PPC64TargetInfo::writePlt(uint8_t *Buf, uint64_t GotEntryAddr,
write32be(Buf + 28, 0x4e800420); // bctr
}
static std::pair<uint32_t, uint64_t> toAddr16Rel(uint32_t Type, uint64_t Val) {
uint64_t V = Val - PPC64TocOffset;
switch (Type) {
case R_PPC64_TOC16: return {R_PPC64_ADDR16, V};
case R_PPC64_TOC16_DS: return {R_PPC64_ADDR16_DS, V};
case R_PPC64_TOC16_HA: return {R_PPC64_ADDR16_HA, V};
case R_PPC64_TOC16_HI: return {R_PPC64_ADDR16_HI, V};
case R_PPC64_TOC16_LO: return {R_PPC64_ADDR16_LO, V};
case R_PPC64_TOC16_LO_DS: return {R_PPC64_ADDR16_LO_DS, V};
default: return {Type, Val};
}
}
void PPC64TargetInfo::relocateOne(uint8_t *Loc, uint32_t Type,
uint64_t Val) const {
uint64_t TO = PPC64TocOffset;
// For a TOC-relative relocation, proceed in terms of the corresponding
// For a TOC-relative relocation, proceed in terms of the corresponding
// ADDR16 relocation type.
switch (Type) {
case R_PPC64_TOC16: Type = R_PPC64_ADDR16; Val -= TO; break;
case R_PPC64_TOC16_DS: Type = R_PPC64_ADDR16_DS; Val -= TO; break;
case R_PPC64_TOC16_HA: Type = R_PPC64_ADDR16_HA; Val -= TO; break;
case R_PPC64_TOC16_HI: Type = R_PPC64_ADDR16_HI; Val -= TO; break;
case R_PPC64_TOC16_LO: Type = R_PPC64_ADDR16_LO; Val -= TO; break;
case R_PPC64_TOC16_LO_DS: Type = R_PPC64_ADDR16_LO_DS; Val -= TO; break;
default: break;
}
std::tie(Type, Val) = toAddr16Rel(Type, Val);
switch (Type) {
case R_PPC64_ADDR14: {