http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46280
Summary: [4.6 regression] Several testcases FAIL with 16byte
alignment ABI warning on Solaris 8/9 x86
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: r...@gcc.gnu.org
CC: h...@gcc.gnu.org
Host: i386-pc-solaris2.[89]
Target: i386-pc-solaris2.[89]
Build: i386-pc-solaris2.[89]
Between 20101022 and 20101029, several testcases started to FAIL on Solaris 8
and 9/x86, e.g.
+FAIL: g++.dg/eh/simd-2.C (test for excess errors)
Excess errors:
/vol/gcc/src/hg/trunk/local/gcc/testsuite/g++.dg/eh/simd-2.C:13:8: note: The
ABI of passing parameter with 16byte alignment has changed in GCC 4.6
This is almost certainly related to this patch
2010-10-26 H.J. Lu <hongjiu...@intel.com>
PR target/44948
* config/i386/i386.c (ix86_old_function_arg_boundary): New.
(ix86_function_arg_boundary): Always align parameters on stack
in 64bit and align parameters with alignment >= 16byte on stack
in 32bit. Warn alignment change.
and the fact that those targets default to -march=pentiumpro instead of
-march=pentium4, since the tests pass with -march=pentium4.
Here's the list of affected testcases:
g++.dg/eh/simd-2.C
g++.dg/opt/combine.C
g++.dg/torture/pr36444.C
g++.dg/torture/pr36445.C
gcc.c-torture/compile/pr34856.c
gcc.c-torture/compile/pr39928-1.c
gcc.c-torture/compile/vector-1.c
gcc.c-torture/compile/vector-2.c
gcc.c-torture/execute/va-arg-25.c
gcc.c-torture/execute/vector-1.c
gcc.c-torture/execute/vector-2.c
gcc.dg/pr32912-1.c
gcc.dg/tree-ssa/forwprop-5.c
gcc.dg/tree-ssa/fre-vce-1.c
gcc.dg/tree-ssa/sra-4.c
gcc.dg/tree-ssa/vector-1.c
gcc.dg/tree-ssa/vector-2.c
gcc.target/i386/vect-args.c
