diff options
Diffstat (limited to 'clang/lib/Basic/Targets')
| -rw-r--r-- | clang/lib/Basic/Targets/ARM.cpp | 32 | ||||
| -rw-r--r-- | clang/lib/Basic/Targets/ARM.h | 3 |
2 files changed, 35 insertions, 0 deletions
diff --git a/clang/lib/Basic/Targets/ARM.cpp b/clang/lib/Basic/Targets/ARM.cpp index 437a77afdc9..92e5e26eba3 100644 --- a/clang/lib/Basic/Targets/ARM.cpp +++ b/clang/lib/Basic/Targets/ARM.cpp @@ -879,6 +879,38 @@ ArrayRef<TargetInfo::GCCRegAlias> ARMTargetInfo::getGCCRegAliases() const { return llvm::makeArrayRef(GCCRegAliases); } +bool ARMTargetInfo::validateGlobalRegisterVariable( + StringRef RegName, unsigned RegSize, bool &HasSizeMismatch) const { + bool isValid = llvm::StringSwitch<bool>(RegName) + .Case("r6", true) + .Case("r7", true) + .Case("r8", true) + .Case("r9", true) + .Case("r10", true) + .Case("r11", true) + .Case("sp", true) + .Default(false); + HasSizeMismatch = false; + return isValid; +} + +bool ARMTargetInfo::isRegisterReservedGlobally(StringRef RegName) const { + // The "sp" register does not have a -ffixed-sp option, + // so reserve it unconditionally. + if (RegName.equals("sp")) + return true; + + // reserve rN (N:6-11) registers only if the corresponding + // +reserve-rN feature is found + const std::vector<std::string> &Features = getTargetOpts().Features; + const std::string SearchFeature = "+reserve-" + RegName.str(); + for (const std::string &Feature : Features) { + if (Feature.compare(SearchFeature) == 0) + return true; + } + return false; +} + bool ARMTargetInfo::validateAsmConstraint( const char *&Name, TargetInfo::ConstraintInfo &Info) const { switch (*Name) { diff --git a/clang/lib/Basic/Targets/ARM.h b/clang/lib/Basic/Targets/ARM.h index ce87a626593..90fb20f8f7a 100644 --- a/clang/lib/Basic/Targets/ARM.h +++ b/clang/lib/Basic/Targets/ARM.h @@ -161,6 +161,9 @@ public: ArrayRef<const char *> getGCCRegNames() const override; ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override; + bool validateGlobalRegisterVariable(StringRef RegName, unsigned RegSize, + bool &HasSizeMismatch) const override; + bool isRegisterReservedGlobally(StringRef RegName) const override; bool validateAsmConstraint(const char *&Name, TargetInfo::ConstraintInfo &Info) const override; std::string convertConstraint(const char *&Constraint) const override; |
