https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101512
Bug ID: 101512 Summary: [11/12 Regression] ICE in maybe_trim_constructor_store, at tree-ssa-dse.c:379 Product: gcc Version: 12.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: gs...@t-online.de Target Milestone: --- Changed between 20200503 and 20200510 : $ cat z1.c int n(); typedef unsigned long V __attribute__ ((vector_size (64))); V foo (int i, V v) { i = ((V)(V){n()})[n()]; return v + i; } $ gcc-11-20200503 -c z1.c -O2 -mavx512f $ $ gcc-12-20210718 -c z1.c -O2 -mavx512f during GIMPLE pass: dse z1.c: In function 'foo': z1.c:8:1: internal compiler error: in maybe_trim_constructor_store, at tree-ssa-dse.c:379 8 | } | ^ 0xcf24be maybe_trim_constructor_store ../../gcc/tree-ssa-dse.c:379 0xcf24be maybe_trim_partially_dead_store ../../gcc/tree-ssa-dse.c:605 0xcf24be dse_optimize_stmt ../../gcc/tree-ssa-dse.c:1146 0xcf24be execute ../../gcc/tree-ssa-dse.c:1237