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changeset 313:a498b736a0bd trunk

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[svn r334] Produce an error for zero-size types instead of segfaulting.
author ChristianK
date Sun, 29 Jun 2008 22:22:37 +0200
parents 553f844ae5b9
children 8d98e42ece93
files gen/toir.cpp
diffstat 1 files changed, 5 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- a/gen/toir.cpp	Sun Jun 29 22:07:15 2008 +0200
+++ b/gen/toir.cpp	Sun Jun 29 22:22:37 2008 +0200
@@ -72,6 +72,11 @@
             else {
                 // allocate storage on the stack
                 const LLType* lltype = DtoType(vd->type);
+                if(gTargetData->getTypeSizeInBits(lltype) == 0) 
+                {
+                    error("Allocating a variable of type %s and size zero is not implemented. (the behaviour of alloca with zero size is undefined)", vd->type->toChars());
+                    fatal();
+                }
                 llvm::AllocaInst* allocainst = new llvm::AllocaInst(lltype, vd->toChars(), p->topallocapoint());
                 //allocainst->setAlignment(vd->type->alignsize()); // TODO
                 assert(!vd->ir.irLocal);