http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46195
Summary: r165965 regresses i386 darwin
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: howa...@nitro.med.uc.edu
The commit...
Author: hjl
Date: Tue Oct 26 13:56:42 2010
New Revision: 165965
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=165965
Log:
Properly align parameters on stack for x86.
gcc/
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.
gcc/testsuite/
2010-10-26 H.J. Lu <hongjiu...@intel.com>
PR target/44948
* g++.dg/abi/param2.C: Add -Wno-psabi for ilp32 x86.
* g++.dg/vect/pr33860a.cc: Likewise.
* gcc.c-torture/compile/20070522-1.c: Likewise.
* gcc.dg/compat/struct-align-1_x.c: Likewise.
* gcc.dg/compat/struct-align-1_y.c: Likewise.
* gcc.dg/compat/struct-align-2_x.c: Likewise.
* gcc.dg/compat/struct-align-2_y.c: Likewise.
* gcc.dg/pr44136.c: Likewise.
* gcc.c-torture/compile/pr33617.c: Add -Wno-psabi for x86.
* gcc.dg/compat/vector-1_x.c: Likewise.
* gcc.dg/compat/vector-1_y.c: Likewise.
* gcc.dg/compat/vector-2_x.c: Likewise.
* gcc.dg/compat/vector-2_y.c: Likewise.
* gcc.dg/pr43300.c: Likewise.
* gcc.dg/compat/vector-1a_x.c: Add -Wno-psabi.
* gcc.dg/compat/vector-1a_y.c: Likewise.
* gcc.dg/compat/vector-1b_x.c: Likewise.
* gcc.dg/compat/vector-1b_y.c: Likewise.
* gcc.dg/compat/vector-2a_x.c: Likewise.
* gcc.dg/compat/vector-2a_y.c: Likewise.
* gcc.dg/compat/vector-2b_x.c: Likewise.
* gcc.dg/compat/vector-2b_y.c: Likewise.
* gcc.target/i386/pr39162.c: Likewise.
* gcc.target/i386/pr40906-2.c: Likewise.
* gcc.target/i386/sse-5.c: Likewise.
* gcc.dg/pr35442.c: Prune ABI change warnings.
* gcc.c-torture/execute/pr38151.x: New.
* gcc.target/i386/pr44948-1a.c: Likewise.
* gcc.target/i386/pr44948-1b.c: Likewise.
* gcc.target/i386/pr44948-2a.c: Likewise.
* gcc.target/i386/pr44948-2b.c: Likewise.
causes many regressions on x86_64-apple-darwin10 at -m32. These include...
gcc.c-torture/compile/20000818-1.c
gcc.c-torture/compile/20001212-1.c
gcc.c-torture/compile/20031208-1.c
gcc.c-torture/compile/20040709-1.c
gcc.c-torture/compile/20041026-1.c
gcc.c-torture/compile/20080628-1.c
gcc.c-torture/compile/941019-1.c
gcc.c-torture/compile/pr19357.c
gcc.c-torture/compile/pr33855.c
gcc.c-torture/compile/pr36125.c
at all optimization levels for excessive errors and
gcc.c-torture/execute/builtins/complex-1.c
gcc.c-torture/execute/20010605-2.c
gcc.c-torture/execute/20020413-1.c
gcc.c-torture/execute/20030914-1.c
gcc.c-torture/execute/20040709-1.c
gcc.c-torture/execute/20080502-1.c
for compilation, etc. The failures are all of the form...
Executing on host: /sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/gcc/xgcc
-B/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/gcc/ -O0 -w -c -m32 -o
20000818-1.o
/sw/src/fink.build/gcc46-4.6.0-1000/gcc-4.6-20101026/gcc/testsuite/gcc.c-torture/compile/20000818-1.c
(timeout = 300)
/sw/src/fink.build/gcc46-4.6.0-1000/gcc-4.6-20101026/gcc/testsuite/gcc.c-torture/compile/20000818-1.c:
In function 'foo':
/sw/src/fink.build/gcc46-4.6.0-1000/gcc-4.6-20101026/gcc/testsuite/gcc.c-torture/compile/20000818-1.c:2:1:
note: The ABI of passing parameter with 16byte alignment has changed in GCC 4.6
