This code hangs up on amdMmx if it is compiled by dmd 2.069.2, but works well if compiled by dmd 2.068.2. void main() { import core.cpuid; import std.stdio; if (amdMmx) writeln("amdMmx"); } Configuration: Microsoft Windows 7 Professional 6.1.7601 Service Pack 1 64-bit CPU Intel(R) Core(TM) i7-2640M CPU @ 2.80GHz, 2801 МГц NVIDIA NVS 4200M
Confirmed, introduced here https://github.com/D-Programming-Language/druntime/pull/1311/files#diff-39baeb3b0818b89d12ae809762ffdd26L188. https://github.com/D-Programming-Language/druntime/pull/1463
Commits pushed to stable at https://github.com/D-Programming-Language/druntime https://github.com/D-Programming-Language/druntime/commit/97d3999a4f3ab3c8409060bc6bb381fcc2a43c54 fix Issue 15430 - amdMmx hangs up https://github.com/D-Programming-Language/druntime/commit/d0e4dc96a265ae562e98ad81d0a7d56b752b48ef Merge pull request #1463 from MartinNowak/fix15430 fix Issue 15430 - amdMmx hangs up
Commits pushed to master at https://github.com/D-Programming-Language/druntime https://github.com/D-Programming-Language/druntime/commit/97d3999a4f3ab3c8409060bc6bb381fcc2a43c54 fix Issue 15430 - amdMmx hangs up https://github.com/D-Programming-Language/druntime/commit/d0e4dc96a265ae562e98ad81d0a7d56b752b48ef Merge pull request #1463 from MartinNowak/fix15430
Commits pushed to dmd-cxx at https://github.com/dlang/druntime https://github.com/dlang/druntime/commit/97d3999a4f3ab3c8409060bc6bb381fcc2a43c54 fix Issue 15430 - amdMmx hangs up https://github.com/dlang/druntime/commit/d0e4dc96a265ae562e98ad81d0a7d56b752b48ef Merge pull request #1463 from MartinNowak/fix15430