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Disable -mpreferred-stack-boundary options for Windows. 

From-SVN: r166120
This commit is contained in:
Richard Henderson 2010-10-31 18:14:46 -07:00 committed by Richard Henderson
parent f81c977403
commit cc825d987a
4 changed files with 26 additions and 17 deletions
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9
gcc/testsuite/ChangeLog
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@ -1,3 +1,12 @@
2010-10-31 Richard Henderson <rth@redhat.com>
* lib/target-supports.exp
(check_effective_target_automatic_stack_alignment): True for
x86 but not windows.
* g++.dg/torture/stackalign/stackalign.exp: Use it to protect
use of the preferred-stack-boundary arguments.
* gcc.dg/torture/stackalign/stackalign.exp: Likewise.
2010-10-31 H.J. Lu <hongjiu.lu@intel.com> 2010-10-31 H.J. Lu <hongjiu.lu@intel.com>
PR target/46142 PR target/46142

12
gcc/testsuite/g++.dg/torture/stackalign/stackalign.exp
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@ -18,19 +18,15 @@
# This harness is for tests that should be run at all optimisation levels. # This harness is for tests that should be run at all optimisation levels.
load_lib g++-dg.exp load_lib g++-dg.exp
dg-init
# Only run on targets which support automatic stack alignment.
if { ![check_effective_target_automatic_stack_alignment] } then {
return
}
set additional_flags "" set additional_flags ""
if { [istarget i?86*-*-*] || [istarget x86_64-*-*] } then {
# If automatic stack alignment is supported, force it on.
if { [check_effective_target_automatic_stack_alignment] } then {
lappend additional_flags "-mstackrealign" lappend additional_flags "-mstackrealign"
lappend additional_flags "-mpreferred-stack-boundary=5" lappend additional_flags "-mpreferred-stack-boundary=5"
} }
dg-init
gcc-dg-runtest [lsort [glob $srcdir/$subdir/*.C]] $additional_flags gcc-dg-runtest [lsort [glob $srcdir/$subdir/*.C]] $additional_flags
if { [check_effective_target_fpic] } then { if { [check_effective_target_fpic] } then {
lappend additional_flags "-fpic" lappend additional_flags "-fpic"

11
gcc/testsuite/gcc.dg/torture/stackalign/stackalign.exp
View File

@ -19,15 +19,12 @@
load_lib gcc-dg.exp load_lib gcc-dg.exp
# Only run on targets which support automatic stack alignment.
if { ![check_effective_target_automatic_stack_alignment] } then {
return
}
set additional_flags "" set additional_flags ""
if { [istarget i?86*-*-*] || [istarget x86_64-*-*] } then { if { [check_effective_target_automatic_stack_alignment] } then {
lappend additional_flags "-mstackrealign" lappend additional_flags "-mstackrealign"
lappend additional_flags "-mpreferred-stack-boundary=5" lappend additional_flags "-mpreferred-stack-boundary=5"
}
if { [istarget i?86*-*-*] || [istarget x86_64-*-*] } then {
lappend additional_flags "-mno-mmx" lappend additional_flags "-mno-mmx"
} }
@ -40,7 +37,7 @@ if { [check_effective_target_fpic] } then {
gcc-dg-runtest [lsort [glob $srcdir/$subdir/*.c]] $pic_additional_flags gcc-dg-runtest [lsort [glob $srcdir/$subdir/*.c]] $pic_additional_flags
} }
if { [istarget i?86*-*-*] || [istarget x86_64-*-*] } then { if { [check_effective_target_automatic_stack_alignment] } then {
lappend additional_flags "-mforce-drap" lappend additional_flags "-mforce-drap"
gcc-dg-runtest [lsort [glob $srcdir/$subdir/*.c]] $additional_flags gcc-dg-runtest [lsort [glob $srcdir/$subdir/*.c]] $additional_flags
if { [check_effective_target_fpic] } then { if { [check_effective_target_fpic] } then {

11
gcc/testsuite/lib/target-supports.exp
View File

@ -3551,8 +3551,15 @@ proc check_effective_target_4byte_wchar_t { } {
# Return 1 if the target supports automatic stack alignment. # Return 1 if the target supports automatic stack alignment.
proc check_effective_target_automatic_stack_alignment { } { proc check_effective_target_automatic_stack_alignment { } {
# Not "stack alignment" per se, but proper stack alignment of decls. # Ordinarily x86 supports automatic stack alignment ...
return 1; if { [istarget i?86*-*-*] || [istarget x86_64-*-*] } then {
if { [istarget *-*-mingw*] || [istarget *-*-cygwin*] } {
# ... except Win64 SEH doesn't. Succeed for Win32 though.
return [check_effective_target_ilp32];
}
return 1;
}
return 0;
} }
# Return 1 if avx instructions can be compiled. # Return 1 if avx instructions can be compiled.