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Remove "JumpTableDataSection" from TAI, instead, have AsmPrinter

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compute it based on what it knows.  As part of this, rename getSectionForMergeableConstant
to getSectionForConstant because it works for non-mergable constants also.

The only functionality change from this is that Xcore will start dropping
its jump tables into readonly section instead of data section in -static mode.
This should be fine as the linker resolves the relocations.  If this is a
problem, let me know and we'll come up with another solution.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77833 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2009-08-01 23:46:12 +00:00
parent 0da3f4f742
commit 83d77faf6e
9 changed files with 33 additions and 46 deletions
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23
include/llvm/Target/TargetLoweringObjectFile.h
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@@ -45,7 +45,9 @@ protected:
const MCSection *BSSSection;
/// ReadOnlySection - Section that is readonly and can contain arbitrary
/// initialized data.
/// initialized data. Targets are not required to have a readonly section.
/// If they don't, various bits of code will fall back to using the data
/// section for constants.
const MCSection *ReadOnlySection;
public:
@@ -76,11 +78,9 @@ public:
return GV != 0;
}
/// getSectionForMergeableConstant - Given a mergeable constant with the
/// specified size and relocation information, return a section that it
/// should be placed in.
virtual const MCSection *
getSectionForMergeableConstant(SectionKind Kind) const;
/// getSectionForConstant - Given a constant with the SectionKind, return a
/// section that it should be placed in.
virtual const MCSection *getSectionForConstant(SectionKind Kind) const;
/// getKindForNamedSection - If this target wants to be able to override
/// section flags based on the name of the section specified for a global
@@ -158,11 +158,9 @@ public:
virtual void Initialize(MCContext &Ctx, const TargetMachine &TM);
/// getSectionForMergeableConstant - Given a mergeable constant with the
/// specified size and relocation information, return a section that it
/// should be placed in.
virtual const MCSection *
getSectionForMergeableConstant(SectionKind Kind) const;
/// getSectionForConstant - Given a constant with the SectionKind, return a
/// section that it should be placed in.
virtual const MCSection *getSectionForConstant(SectionKind Kind) const;
virtual SectionKind getKindForNamedSection(const char *Section,
SectionKind K) const;
@@ -194,8 +192,7 @@ public:
SelectSectionForGlobal(const GlobalValue *GV, SectionKind Kind,
Mangler *Mang, const TargetMachine &TM) const;
virtual const MCSection *
getSectionForMergeableConstant(SectionKind Kind) const;
virtual const MCSection *getSectionForConstant(SectionKind Kind) const;
/// shouldEmitUsedDirectiveFor - This hook allows targets to selectively
/// decide not to emit the UsedDirective for some symbols in llvm.used.