On Tue, 16 Feb 2021, Michael Matz wrote:
(Note that TCC and GCC behave different with non-top-level flex array
members: GCC accepts but discards initializers of these with a warning,
TCC rejects them. That's fine, flex array members are an extension.)
Flexible array members are standard as
Hello,
On Sun, 14 Feb 2021, Dmitry Selyutin wrote:
The first patch introduces a set of routines which any platform which
wants to support atomics must implement. I don't quite like that
there's a lot of code duplication, but I haven't come up with a good
idea on how to avoid it (I've been
Hello,
On Mon, 15 Feb 2021, Herman ten Brugge via Tinycc-devel wrote:
I ran the tests/gcctestsuite.sh script and found one test that dumps core.
($GCC_DIR/gcc/testsuite/gcc.c-torture/compile/pr28865.c)
The reduced testcase is:
struct A { int a; char b[]; };
struct A a = { 1, "1" };
struct B
Hello again,
On Tue, 16 Feb 2021, Michael Matz wrote:
On Sun, 14 Feb 2021, Dmitry Selyutin wrote:
The first patch introduces a set of routines which any platform which
wants to support atomics must implement. I don't quite like that
there's a lot of code duplication, but I haven't come up
Hello,
On Mon, 15 Feb 2021, Elijah Stone wrote:
On Tue, 16 Feb 2021, Michael Matz wrote:
(Note that TCC and GCC behave different with non-top-level flex array
members: GCC accepts but discards initializers of these with a warning,
TCC rejects them. That's fine, flex array members are an
I ran the tests/gcctestsuite.sh script and found one test that dumps core.
($GCC_DIR/gcc/testsuite/gcc.c-torture/compile/pr28865.c)
The reduced testcase is:
struct A { int a; char b[]; };
struct A a = { 1, "1" };
struct B { struct A a; };
struct B b = { { 1, "1" } };
line 2 works and line 4
On Mon, 15 Feb 2021, grischka wrote:
Why not just provide functions as a library and wrap them into macros
from stdatomic.h? No or almost no changes to tcc's generator would be
needed.
I've posted already a WIP version of atomics-as-support library for amd64.
Attached it again.
(It needs
>
> I've posted already a WIP version of atomics-as-support library for amd64.
> Attached it again.
>
This can be implemented for all architectures without writing assembly by
hand for each platform. I actually had such script by the time I started
implementing std atomics; this is basically bunch
At least one architecture I know has different models to implement atomics
(LSE instructions from AArch64); with gcc, the corresponding switch is
-mno-outline-atomics. Once this option is present, compiler inlines
atomics, otherwise a function call is emitted.
