Bug 12509 – Compiler performance highly depends on declared array size - for struct with long static array of structs

Created attachment 1342 Source file to reproduce DMD 2.065 under winXP/32 compiles following example very slow > dmd main.d (compliles very slow) Not reproduced with 64bit compiler on linux --- main.d -------------------------- module main; struct Foo // must be struct to reproduce { uint foo; // any data can be here } struct Bar // must be struct to reproduce { // DMD 2.065 hang with 100% CPU load // works ok if array size is reduced Foo[0x20000] _array; // 0x4000 - < 1 second // 0x8000 - 5 seconds // 0xC000 - 15 seconds // 0xE000 - 20 seconds // 0x10000 - 25 seconds // 0x20000 - 1:45 } int main(string[] argv) { return 0; } ---------------------------------------

*** Issue 12525 has been marked as a duplicate of this issue. ***

This is a regression in 2.064.2.

Introduced in https://github.com/D-Programming-Language/dmd/pull/2605

Commits pushed to master at https://github.com/D-Programming-Language/dmd https://github.com/D-Programming-Language/dmd/commit/f111434251af84e90abc709a49527ec76b9e1a97 fix Issue 12509 - Compiler performance highly depends on declared array size - for struct with long static array of structs https://github.com/D-Programming-Language/dmd/commit/db2291fc32b08187fb5862eefe3160a3e6b3dd90 Merge pull request #3425 from 9rnsr/fix12509 [REG2.064] Issue 12509 - Compiler performance highly depends on declared array size - for struct with long static array of structs