On 8/6/19 11:30 AM, Steve Ellcey wrote:
Ed,I have run into an ICE that I tracked down to this patch: commit 02fefffe6b78c4c39169206aa40fb53f367ecba8 Author: emsr <emsr@138bc75d-0d04-0410-961f-82ee72b054a4> Date: Thu Aug 1 15:25:42 2019 +0000 2019-08-01 Edward Smith-Rowland <3dw...@verizon.net> Implement C++20 p0202 - Add Constexpr Modifiers to Functions in <algorithm> and <utility> Headers. Implement C++20 p1023 - constexpr comparison operators for std::array. Before I try to create a smaller test example (the current failure happens when I build https://github.com/llnl/RAJAPerf.git) I was wondering if you have already seen this ICE: /extra/sellcey/raja-build-error/RAJAPerf/src/apps/WIP-COUPLE.cpp: In member function 'virtual void rajaperf::apps::COUPLE::runKernel(rajaperf::VariantID)': /extra/sellcey/raja-build-error/RAJAPerf/src/apps/WIP-COUPLE.cpp:217:1: internal compiler error: Segmentation fault 217 | } // end namespace rajaperf | ^ 0xe81ddf crash_signal ../../gcc/gcc/toplev.c:326 0x968d14 lookup_page_table_entry ../../gcc/gcc/ggc-page.c:632 0x968d14 ggc_set_mark(void const*) ../../gcc/gcc/ggc-page.c:1531 0xbfeadf gt_ggc_mx_symtab_node(void*) /extra/sellcey/gcc-tot/obj-gcc/gcc/gtype-desc.c:1302 0xd9d2a7 gt_ggc_ma_order ./gt-passes.h:31 0xd9d2a7 gt_ggc_ma_order ./gt-passes.h:26 0xb6f49f ggc_mark_root_tab ../../gcc/gcc/ggc-common.c:77 0xb6f6c3 ggc_mark_roots() ../../gcc/gcc/ggc-common.c:94 0x9696af ggc_collect() ../../gcc/gcc/ggc-page.c:2201 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <https://gcc.gnu.org/bugs/> for instructions.
I've been building C++14 code (and C++17 and C++20 code) with this patch for half a year and no ICE.
I don't see how the patch could impact pre C++20 code. Ed
