(Marked as a regression because the bug wasn't exposed with earlier versions, for example 3.2.1, well before ivopts.) Adding -fno-gcse trigs more FAILs, but -fno-gcse by itself doesn't expose the bug. To reproduce, run the testsuite with "RUNTESTFLAGS=--target_board=cris-sim/-fno-ivopts" or "RUNTESTFLAGS=--target_board=cris-sim/-fno-ivopts/-fno-gcse". Observe, for 4.3 and the latter, for ieee.exp: Running /tmp/hpautotest-gcc43/gcc/gcc/testsuite/gcc.c-torture/execute/ieee/ieee.exp ... FAIL: gcc.c-torture/execute/ieee/fp-cmp-5.c compilation, -O1 (internal compiler error) FAIL: gcc.c-torture/execute/ieee/fp-cmp-5.c compilation, -O2 (internal compiler error) FAIL: gcc.c-torture/execute/ieee/fp-cmp-8.c compilation, -O1 (internal compiler error) FAIL: gcc.c-torture/execute/ieee/fp-cmp-8.c compilation, -O2 (internal compiler error) FAIL: gcc.c-torture/execute/ieee/fp-cmp-8.c compilation, -O3 -fomit-frame-pointer (internal compiler error) FAIL: gcc.c-torture/execute/ieee/fp-cmp-8.c compilation, -O3 -fomit-frame-pointer -funroll-loops (internal compiler error) FAIL: gcc.c-torture/execute/ieee/fp-cmp-8.c compilation, -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions (internal compiler error) FAIL: gcc.c-torture/execute/ieee/fp-cmp-8.c compilation, -O3 -g (internal compiler error) FAIL: gcc.c-torture/execute/ieee/fp-cmp-8l.c compilation, -O1 (internal compiler error) FAIL: gcc.c-torture/execute/ieee/fp-cmp-8l.c compilation, -O2 (internal compiler error) FAIL: gcc.c-torture/execute/ieee/fp-cmp-8l.c compilation, -O3 -fomit-frame-pointer (internal compiler error) FAIL: gcc.c-torture/execute/ieee/fp-cmp-8l.c compilation, -O3 -g (internal compiler error)
The bug itself is an incomplete fix for PR25947; nothing but REG is recognised for operand 1. -- Summary: [4.2/4.3/4.4 Regression] -fno-ivopts exposes CRIS port bug, more with -fno-gcse Product: gcc Version: 4.3.3 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: target AssignedTo: hp at gcc dot gnu dot org ReportedBy: hp at gcc dot gnu dot org GCC host triplet: x86_64-unknown-linux-gnu GCC target triplet: cris-*-* http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38016