Displaying 3 results from an estimated 3 matches for "parseunnamedglobal".
2016 May 26
1
Potential ambiguity in the grammar of LLVM IR assembly
...ting back to me.
The language grammar as defined by the LLVM Language Reference Manual
[1] does not include the details of the LLVM IR parser reference
implementation.
The following extract from "lib/AsmParser/LLParser.cpp" illustrates that
unnamed globals are allowed [2].
> /// ParseUnnamedGlobal:
> /// OptionalVisibility (ALIAS | IFUNC) ...
> /// OptionalLinkage OptionalVisibility OptionalDLLStorageClass
> /// ... ->
global variable
> /// GlobalID '=' OptionalVisibility (ALIAS | IFUNC) ...
> /// G...
2016 May 26
0
Potential ambiguity in the grammar of LLVM IR assembly
On 25 May 2016 at 16:10, Robin Eklind via llvm-dev
<llvm-dev at lists.llvm.org> wrote:
> declare void @foo() unnamed_addr
> global i32 42
Doesn't a global have to be named? The syntax in the IR reference
doesn't make it optional:
@<GlobalVarName> = [Linkage] [Visibility] [DLLStorageClass]
[ThreadLocal] ...
Cheers.
Tim.
2016 May 25
4
Potential ambiguity in the grammar of LLVM IR assembly
Hello everyone,
While developing a parser for LLVM IR, I seem to have stumbled upon a
potential ambiguity in the LLVM IR assembly language grammar. Most
likely there is something which I may have overlooked, so wanted to
reach out to a more experienced crowed for some feedback.
How would the following set of tokens be interpreted [1]?
declare
void
@foo()
unnamed_addr
global
i32
42
As far as