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add a predicate to determine if a global var reference requires a 

PIC-base to be added in.

llvm-svn: 75238
This commit is contained in:
Chris Lattner 2009-07-10 07:33:30 +00:00
parent dc842c06c2
commit d3f32c725b
1 changed files with 16 additions and 0 deletions
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16
llvm/lib/Target/X86/X86InstrInfo.h
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@ -199,6 +199,22 @@ inline static bool isGlobalStubReference(unsigned char TargetFlag) {
return false;
}
}
/// isGlobalRelativeToPICBase - Return true if the specified global value
/// reference is relative to a 32-bit PIC base (X86ISD::GlobalBaseReg). If this
/// is true, the addressing mode has the PIC base register added in (e.g. EBX).
inline static bool isGlobalRelativeToPICBase(unsigned char TargetFlag) {
switch (TargetFlag) {
case X86II::MO_GOTOFF: // isPICStyleGOT: local global.
case X86II::MO_GOT: // isPICStyleGOT: other global.
case X86II::MO_PIC_BASE_OFFSET: // Darwin local global.
case X86II::MO_DARWIN_NONLAZY_PIC_BASE: // Darwin/32 external global.
case X86II::MO_DARWIN_HIDDEN_NONLAZY_PIC_BASE: // Darwin/32 hidden global.
return true;
default:
return false;
}
}
/// X86II - This namespace holds all of the target specific flags that
/// instruction info tracks.