| Commit message (Collapse) | Author | Age | Files | Lines |
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- Make Mem.unchanged_on transitive.
- Add Mem.drop_perm_unchanged_on.
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- Coqlib: option_rel to lift a relation to option type.
- Coqlib: more lemmas about list_forall2.
- Coqlib: introduce type nlist (nonempty lists) and some operations.
- Maps: a variant of PTree.elements_extensional that uses option_rel.
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The diab compiler seems to interpret the alignment as power of two
instead of the value.
Bug 18490
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As suggested in GPR#84, use '%.15F' to force the printing of more significant digits. (The '%F' format previously used prints only 6.) This is enough to represent the FP number exactly most of the time (but not always).
Once OCaml 4.03 is out and CompCert switches to this version of OCaml, we'll be able to use hexadecimal floats for printing.
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Make casts of pointers to _Bool semantically well defined
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In compCert 2.5 the semantics of pointer comparisons against the NULL pointer was made more accurate by making it undefined if the pointer is invalid (outside bounds). Technical difficulties prevented this change from being propagated to the semantics of casts from pointer types to the _Bool type, which involves an implicit pointer comparison against NULL. Hence, this kind of casts was temporarily given undefined semantics.
This commit makes pointer-to-_Bool casts semantically defined (again), provided the pointer is valid. This reinstates the equivalence between casts to _Bool and comparisons != 0. The technical difficulties mentioned above came from the translation of assignments in a value context in the SimplExpr pass. The pass was lightly modified to work around the issue.
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Support <pointer> +/- <integer> where the pointer value is actually an integer (Vint) that has been converted to pointer type.
Such arithmetic, while not defined in ISO C, appears in the wild. If present in static initializers, it used to cause a compile-time failure ("not a compile-time constant"). Hence this relaxation.
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Compare the underlying array types, otherwise we end up in a
endless recursion.
Bug 18374
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Added the gcc options for the preprocessor:
-Xpreprocessor
-M
-MM
-MF
-MG
-MP
-MT
-MQ
-nostdinc
-imacros
-idirafter
-isystem
-iquote
-P
-C
-CC
Also warn for not supported GCC options in the diab case.
Bug 18066
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Added additional configuration entries to seperate tools from options in the
.ini files. Internally they are just concatenated in Configuration.ml which
allows it to still use old .ini files.
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The Xassembler option passes one option to the assembler and can
be used to pass options to the underlying assembler that the gcc
driver does not recognize.
Bug 18066
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CompCert now recognizes the gcc linker options:
-nostartfiles
-nodefaultlibs
-nostdlib
-s
-Xlinker <opt>
-u <symb>
Bug 18066.
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Two reasons:
- The movs is not supported if rd or rs is r13 (the stack ptr register).
Newer versions of GNU as reject it, older versions were probably
emulating it.
- The purpose of setting the "s" flag on some operations is to
enable 16-bit encoding in Thumb2 mode. However, for "mov"
it is the non-s form that has a 16-bit encoding; the s form
is never more compact.
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The new option -static passes the -static flag to the linker.
Bug 18066.
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Better treatment of names in the clightgen tool
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clightgen now gives semi-readable and relatively stable names of the form _t'1, _t'2, _t'3, etc, to compiler-generated temporaries, instead of the unreadable and unstable NNN%positive notation generated previously.
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This makes it easier to generate semi-meaningful names for compiler-generated temporaries in the clightgen tool.
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The -include option is passed to the preprocessor and -include <file>
is equivalent to writting #include "<file>" as first line in the
primary source file.
Bug 18066.
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Flag -doptions to save machine configuration and command-line flags to a JSON file.
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The new options dumps the compiler options in a json file per.
This includes the clflags, compcert.ini and machine settings.
Bug 17988.
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Since we cannot construct a default initializer for void types
we need to exit earlier.
Bug 18004.
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In parse_int it was not tested if the value of v is smaller than
zero. This allowed it that certain large integers were accepted
due to wrap around.
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Implementing the same behavior as gcc anc clang.
Bug 18004
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The new option -dprepro allows it to keep the preprocessed source code files.
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Gcc defines wint_t in the stddef header (even if it is not stanadard) and
additionally defines it if stddef is reincluded. The fix now defines it
before stddef is checked for reinclusion.
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The typdef, enumerator and function_type types form the DebugTypes and
DwarfTypes shared a some fields. This commits renames them in order to
make them more unique and avoid potential name clashes.
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CompCert now prints if the assembler, linker or preprocessor
command failed and a hint for the user to get the full command
line.
Bug 17894
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The new configuration option -clightgen activates the build of clightgen.
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ssh://ssh.absint.com/common/repositories/git/tools/compcert
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17838
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Follow-up to commit f531d38
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ARM: add __builtin_clzl, __builtin_clzll
IA32: add __builtin_clzl, __builtin_clzll,
__builtin_ctzl, __builtin_ctzll
Add corresponding tests in tests/regression/
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