Changes in directory llvm/include/llvm/CodeGen:
AsmPrinter.h updated: 1.66 -> 1.67
---
Log message:
Fix the asmprinter so that a globalvalue can specify an explicit alignment
smaller than the preferred alignment, but so that the target can actually
specify a minimum alignment if needed. This fixes some objc protocol
failures Devang tracked down.
---
Diffs of the changes: (+12 -2)
AsmPrinter.h | 14 ++++++++++++--
1 files changed, 12 insertions(+), 2 deletions(-)
Index: llvm/include/llvm/CodeGen/AsmPrinter.h
diff -u llvm/include/llvm/CodeGen/AsmPrinter.h:1.66
llvm/include/llvm/CodeGen/AsmPrinter.h:1.67
--- llvm/include/llvm/CodeGen/AsmPrinter.h:1.66 Wed May 2 20:11:53 2007
+++ llvm/include/llvm/CodeGen/AsmPrinter.h Thu May 31 13:57:45 2007
@@ -248,8 +248,18 @@
/// EmitAlignment - Emit an alignment directive to the specified power of
/// two boundary. For example, if you pass in 3 here, you will get an 8
/// byte alignment. If a global value is specified, and if that global has
- /// an explicit alignment requested, it will override the alignment
request.
- void EmitAlignment(unsigned NumBits, const GlobalValue *GV = 0) const;
+ /// an explicit alignment requested, it will unconditionally override the
+ /// alignment request. However, if ForcedAlignBits is specified, this
value
+ /// has final say: the ultimate alignment will be the max of
ForcedAlignBits
+ /// and the alignment computed with NumBits and the global.
+ ///
+ /// The algorithm is:
+ /// Align = NumBits;
+ /// if (GV && GV->hasalignment) Align = GV->getalignment();
+ /// Align = std::max(Align, ForcedAlignBits);
+ ///
+ void EmitAlignment(unsigned NumBits, const GlobalValue *GV = 0,
+ unsigned ForcedAlignBits = 0) const;
protected:
/// EmitZeros - Emit a block of zeros.
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