https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113751
Bug ID: 113751 Summary: -mapxf -mfma4 generates wrong assembly code Product: gcc Version: 14.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: hjl.tools at gmail dot com CC: crazylht at gmail dot com Target Milestone: --- Target: x86-64 [hjl@gnu-icx-1 creduce-1]$ cat x.i struct { double a[8] } a; double b, c, d; int e, f, g; void h() { f = e; d = a.a[g + 1]; c = a.a[g] + a.a[g + 3] * (a.a[g + 4] * (a.a[g + 5] * (a.a[g + 6] * (a.a[g + 7] * a.a[g + 8] + b)))); d += e > a.a[g + 11]; } [hjl@gnu-icx-1 creduce-1]$ /export/build/gnu/tools-build/gcc-x32-gitlab/release/usr/gcc-14.0.1-x32/bin/gcc -O3 -mfma4 -mapxf x.i -w -c /tmp/cchsm1V9.s: Assembler messages: /tmp/cchsm1V9.s:38: Error: extended GPR cannot be used as base/index for `vfmaddsd' [hjl@gnu-icx-1 creduce-1]$