https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70405
Bug ID: 70405 Summary: -fcompare-debug failure with -mavx512f Product: gcc Version: 6.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: rtl-optimization Assignee: unassigned at gcc dot gnu.org Reporter: zsojka at seznam dot cz Target Milestone: --- Target: x86_64-pc-linux-gnu, i686-pc-linux-gnu Created attachment 38087 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=38087&action=edit reduced testcase Compiler output: $ x86_64-pc-linux-gnu-gcc -O -mavx512f -fcompare-debug testcase.c x86_64-pc-linux-gnu-gcc: error: testcase.c: -fcompare-debug failure (length) The generated assembly differs significantly. Tested revisions: trunk r234391 - FAIL 5-branch r234412 - OK