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Calculate alignment for local variables.

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llvm-svn: 51826
This commit is contained in:
Eli Friedman
2008-05-31 21:20:41 +00:00
parent 380df93fd6
commit 252e5f1b29
2 changed files with 14 additions and 2 deletions
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8
clang/lib/CodeGen/CGDecl.cpp
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@@ -129,8 +129,12 @@ void CodeGenFunction::EmitLocalBlockVarDecl(const VarDecl &D) {
if (!Target.useGlobalsForAutomaticVariables()) {
// A normal fixed sized variable becomes an alloca in the entry block.
const llvm::Type *LTy = ConvertType(Ty);
// TODO: Alignment
DeclPtr = CreateTempAlloca(LTy, D.getName());
llvm::AllocaInst * Alloc = CreateTempAlloca(LTy, D.getName());
unsigned align = getContext().getTypeAlign(Ty);
if (const AlignedAttr* AA = D.getAttr<AlignedAttr>())
align = std::max(align, AA->getAlignment());
Alloc->setAlignment(align >> 3);
DeclPtr = Alloc;
} else {
// Targets that don't support recursion emit locals as globals.
const char *Class =