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| author | Bernhard Schommer <bschommer@users.noreply.github.com> | 2018-09-10 15:43:20 +0200 |
|---|---|---|
| committer | Xavier Leroy <xavierleroy@users.noreply.github.com> | 2018-09-10 15:43:20 +0200 |
| commit | 45ca9fe8fcc6a67036369624f57576be22ac7bbd (patch) | |
| tree | 7f4e1e79a1abd7fccfdf965f872e9ae6b4437c52 /test/regression/Results | |
| parent | 49ecf8a3e5b5a4449f4bcbc1d6d4f55c8b5888be (diff) | |
| download | compcert-kvx-45ca9fe8fcc6a67036369624f57576be22ac7bbd.tar.gz compcert-kvx-45ca9fe8fcc6a67036369624f57576be22ac7bbd.zip | |
Attach _Alignas to names and refactor _Alignas checks (#133)
* Refactor common code of alignas.
Instead of working on attributes the function now works directly
on the type since the check always performed an extraction of
attributes from a type.
Bug 23393
* Attach _Alignas to the name.
Bug 23393
* Attach "aligned" attributes to names
So that __attribute((aligned(N))) remains consistent with _Alignas(N).
gcc and clang apply "aligned" attributes to names, with a special case
for typedefs:
typedef __attribute((aligned(16))) int int_al_16;
int_al_16 * p;
__attribute((aligned(16))) int * q;
For gcc, p is naturally-aligned pointer to 16-aligned int and
q is 16-aligned pointer to naturally-aligned int.
For CompCert with this commit, both p and q are 16-aligned pointers
to naturally-aligned int.
* Resurrect the alignment test involving typedef
The test was removed because it involved an _Alignas in a typedef,
which is no longer supported. However the same effect can be achieved
with an "aligned" attribute, which is still supported in typedef.
Diffstat (limited to 'test/regression/Results')
| -rw-r--r-- | test/regression/Results/alignas | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/test/regression/Results/alignas b/test/regression/Results/alignas index 9372096a..620b5e76 100644 --- a/test/regression/Results/alignas +++ b/test/regression/Results/alignas @@ -1,6 +1,7 @@ a: size = 4, address mod 16 = 0 b: size = 12, address mod 16 = 0 bb: size = 12, address mod 16 = 0 +bbb: size = 12, address mod 16 = 0 c: size = 32, address mod 16 = 0 d: size = 32, address mod 64 = 0 e: size = 16, address mod 16 = 0 |