https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68269
Bug ID: 68269 Summary: [5/6 regression] FAIL: gcc.dg/pr68129_1.c (internal compiler error) Product: gcc Version: 6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: rtl-optimization Assignee: unassigned at gcc dot gnu.org Reporter: sch...@linux-m68k.org Target Milestone: --- Target: ia64-*-* Both -O and -fno-split-wide-types are required to trigger the ICE. $ gcc/xgcc -Bgcc/ ../gcc/testsuite/gcc.dg/pr68129_1.c -O -fno-split-wide-types -S -o pr68129_1.s ../gcc/testsuite/gcc.dg/pr68129_1.c: In function ‘foo’: ../gcc/testsuite/gcc.dg/pr68129_1.c:10:1: internal compiler error: in simplify_const_binary_operation, at simplify-rtx.c:3950 } ^ 0x4000000000c3a8bf simplify_const_binary_operation(rtx_code, machine_mode, rtx_def*, rtx_def*) ../../gcc/simplify-rtx.c:3950 0x4000000000c3a54f simplify_binary_operation(rtx_code, machine_mode, rtx_def*, rtx_def*) ../../gcc/simplify-rtx.c:1990 0x4000000000c4376f simplify_gen_binary(rtx_code, machine_mode, rtx_def*, rtx_def*) ../../gcc/simplify-rtx.c:194 0x40000000014fc92f expand_field_assignment ../../gcc/combine.c:7234 0x40000000014ffc3f can_combine_p ../../gcc/combine.c:1910 0x400000000152e55f try_combine ../../gcc/combine.c:2961 0x400000000153c06f combine_instructions ../../gcc/combine.c:1267 0x400000000153c06f rest_of_handle_combine ../../gcc/combine.c:14278 0x400000000153c06f execute ../../gcc/combine.c:14321