diff options
| author | Brian Paul <[email protected]> | 2019-05-01 14:22:57 -0600 |
|---|---|---|
| committer | Brian Paul <[email protected]> | 2019-05-01 20:06:54 -0600 |
| commit | 413e55b5b99d7d135624f461797d450745b3bfbf (patch) | |
| tree | 713ef87c9725edabd984b14f2b07ac585665add6 /src/compiler | |
| parent | 96540e4f0a99252bcd402a216525df84d9d74364 (diff) | |
glsl: work around MinGW 7.x compiler bug
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.
Reviewed-by: Jose Fonseca <[email protected]>
Reviewed-by: Neha Bhende <[email protected]>
Diffstat (limited to 'src/compiler')
| -rw-r--r-- | src/compiler/glsl/builtin_variables.cpp | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/compiler/glsl/builtin_variables.cpp b/src/compiler/glsl/builtin_variables.cpp index 17ee80cd419..1b9963a530a 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" +#pragma GCC optimize("O1") +#endif + + #include "ir.h" #include "ir_builder.h" #include "linker.h" |