On 2019-05-01 at 21:35, Brian Paul <bri...@vmware.com> wrote:
> I'm not sure what triggered this, but building with
> scons platform=windows toolchain=crossmingw machine=x86 build=profile
> with MinGW g++ 7.3 or 7.4 causes an internal compiler error.
>
> We can work around it by forcing -O1 optimization.
> ---
> src/compiler/glsl/builtin_variables.cpp | 15 +++++++++++++++
> 1 file changed, 15 insertions(+)
>
> diff --git a/src/compiler/glsl/builtin_variables.cpp
> b/src/compiler/glsl/builtin_variables.cpp
> index 17ee80c..1b9963a 100644
> --- a/src/compiler/glsl/builtin_variables.cpp
> +++ b/src/compiler/glsl/builtin_variables.cpp
> @@ -21,6 +21,21 @@
> * DEALINGS IN THE SOFTWARE.
> */
>
> +
> +/**
> + * Building this file with MinGW g++ 7.3 or 7.4 with:
> + * scons platform=windows toolchain=crossmingw machine=x86
> build=profile
> + * triggers an internal compiler error.
> + * Overriding the optimization level to -O1 works around the issue.
> + * MinGW 5.3.1 does not seem to have the bug, neither does 8.3. So
> for now
> + * we're simply testing for version 7.x here.
> + */
> +#if defined(__MINGW32__) && __GNUC__ == 7
> +#warning "disabling optimizations for this file to work around
> compiler bug in MiGW gcc 7.x"
Typo: s/MiGW/MinGW/
> +#pragma GCC optimize("O1")
> +#endif
> +
> +
> #include "ir.h"
> #include "ir_builder.h"
> #include "linker.h"
> --
> 1.8.5.6
>
> _______________________________________________
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> mesa-dev@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/mesa-dev
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