diff options
Diffstat (limited to 'lib/Target/X86/X86Subtarget.cpp')
| -rw-r--r-- | lib/Target/X86/X86Subtarget.cpp | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/lib/Target/X86/X86Subtarget.cpp b/lib/Target/X86/X86Subtarget.cpp index 7d1f972b4e..6eb0235e15 100644 --- a/lib/Target/X86/X86Subtarget.cpp +++ b/lib/Target/X86/X86Subtarget.cpp @@ -38,8 +38,8 @@ AsmWriterFlavor("x86-asm-syntax", cl::init(X86Subtarget::Unset), /// symbols are indirect, loading the value at address GV rather then the /// value of GV itself. This means that the GlobalAddress must be in the base /// or index register of the address, not the GV offset field. -bool X86Subtarget::GVRequiresExtraLoad(const GlobalValue* GV, - const TargetMachine& TM, +bool X86Subtarget::GVRequiresExtraLoad(const GlobalValue *GV, + const TargetMachine &TM, bool isDirectCall) const { // Windows targets only require an extra load for DLLImport linkage values, // and they need these regardless of whether we're in PIC mode or not. @@ -72,6 +72,19 @@ bool X86Subtarget::GVRequiresExtraLoad(const GlobalValue* GV, return false; } +/// PCRelGVRequiresExtraLoad - True if accessing the GV from a PC-relative +/// operand like a call target requires an extra load. +bool X86Subtarget::PCRelGVRequiresExtraLoad(const GlobalValue *GV, + const TargetMachine &TM) const { + // Windows targets only require an extra load for DLLImport linkage values, + // and they need these regardless of whether we're in PIC mode or not. + if (isTargetCygMing() || isTargetWindows()) + return GV->hasDLLImportLinkage(); + + return false; +} + + /// True if accessing the GV requires a register. This is a superset of the /// cases where GVRequiresExtraLoad is true. Some variations of PIC require /// a register, but not an extra load. |