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Local variables are now added with bogus lexical scopes to reflect
the actually lexical scopes. Also this commit fixes assembler problems
of the das when a user section with the name ".text" is defined.
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Conflicts:
cparser/Unblock.ml
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As observed by B. Schommer, it is not enough to track scopes for every source line, as blocks can occur on a single line (think macros). Hence:
- Revert debug annotations of kind 1 to contain only line number info.
Generate them only when the line number changes.
- Use debug annotations of kind 6 to record the list of active scopes
(as BA_int integer arguments to __builtin_annot). Generate them
before every nontrivial statement, even if on the same line as others.
- Remove the generation of "variable x is declared in scope N" debug
annotations. This can be tracked separately and more efficiently.
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Instead of creating separate annotations for the local variables
we call the Debug.add_lvar_scope and we construct a mapping from
function id + scope id to scope information.
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C2C: the code that insert debug builtins with the line numbers is now
in Unblock. Handle calls to __builtin_debug.
Unblock: generate __builtin_debug(1) for line numbers, carrying
the list of active scopes as extra arguments.
Generate __builtin_debug(6) for local variable declarations,
carrying the corresponding scope number as extra argument.
Constprop: avoid duplicating debug arguments that are constants already.
PrintAsmaux: show this extra debug info as comments.
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Bitfields: better translation of initializers and compound literals; run this pass before unblocking.
Transform.stmt: extend with ability to treat unblocked code.
test/regression: more bitfield tests.
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The passing of struct/union arguments by value implemented in the verified
part of CompCert is not compatible with the ARM, PowerPC and x86 ABI.
Here we enrich the StructReturn source-to-source emulation pass
so that it implements the calling conventions defined in these ABIs.
Plus: for x86, implement the returning of struct/union results by value
in a way compatible with the ABI.
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git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2615 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
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Elab: Handle C99 designated initializers.
C2C, Initializers: more precise intermediate AST for initializers.
git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2439 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
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cparser: add primitive support for enum types.
bitfield emulation: for bitfields with enum type, choose signed/unsigned as appropriate
git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2074 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
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cparser: renamed Errors to Cerrors; removed packing into Cparser.
git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1856 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
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git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1269 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
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