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llvm: cast optional null ptr representation to generic address space

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The panic handler expects that this value is represented with the
generic address space, so cast the global to the generic address-
space before caching and returning the value.
This commit is contained in:
Robin Voetter 2023-07-01 20:25:25 +02:00
parent 0a6cd257b9
commit 13c0624f23
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1 changed files with 10 additions and 3 deletions
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13
src/codegen/llvm.zig
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@ -2435,18 +2435,25 @@ pub const Object = struct {
.ty = ty.toType(), .ty = ty.toType(),
.val = null_opt_usize.toValue(), .val = null_opt_usize.toValue(),
}); });
const llvm_wanted_addrspace = toLlvmAddressSpace(.generic, target);
const llvm_actual_addrspace = toLlvmGlobalAddressSpace(.generic, target);
const global = o.llvm_module.addGlobalInAddressSpace( const global = o.llvm_module.addGlobalInAddressSpace(
llvm_init.typeOf(), llvm_init.typeOf(),
"", "",
toLlvmGlobalAddressSpace(.generic, target), llvm_actual_addrspace,
); );
global.setLinkage(.Internal); global.setLinkage(.Internal);
global.setUnnamedAddr(.True); global.setUnnamedAddr(.True);
global.setAlignment(ty.toType().abiAlignment(mod)); global.setAlignment(ty.toType().abiAlignment(mod));
global.setInitializer(llvm_init); global.setInitializer(llvm_init);
o.null_opt_addr = global; const addrspace_casted_global = if (llvm_wanted_addrspace != llvm_actual_addrspace)
return global; global.constAddrSpaceCast(o.context.pointerType(llvm_wanted_addrspace))
else
global;
o.null_opt_addr = addrspace_casted_global;
return addrspace_casted_global;
} }
/// If the llvm function does not exist, create it. /// If the llvm function does not exist, create it.