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* lib/target-supports.exp 

(check_effective_target_pcc_bitfield_type_matters): New proc.
	* gcc.dg/bitfld-3.c: Gate on target pcc_bitfield_type_matters.

From-SVN: r106375
This commit is contained in:
Hans-Peter Nilsson 2005-11-02 02:49:24 +00:00 committed by Hans-Peter Nilsson
parent aa5c7673b8
commit edc5687ec1
3 changed files with 45 additions and 1 deletions
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4
gcc/testsuite/ChangeLog
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@ -1,5 +1,9 @@
2005-11-02 Hans-Peter Nilsson <hp@axis.com>
* lib/target-supports.exp
(check_effective_target_pcc_bitfield_type_matters): New proc.
* gcc.dg/bitfld-3.c: Gate on target pcc_bitfield_type_matters.
* lib/target-supports.exp (check_effective_default_packed): New proc.
* g++.dg/ext/packed3.C, g++.dg/ext/packed8.C, g++.dg/other/crash-4.C:
Gate expected errors on target ! default_packed.

2
gcc/testsuite/gcc.dg/bitfld-3.c
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@ -1,5 +1,5 @@
/* Test for bitfield alignment in structs and unions. */
/* { dg-do run } */
/* { dg-do run { target pcc_bitfield_type_matters } } */
/* { dg-options "-O2" } */
extern void abort (void);

40
gcc/testsuite/lib/target-supports.exp
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@ -344,6 +344,46 @@ proc check_effective_target_default_packed { } {
return $et_default_packed_saved
}
# Return 1 if target has PCC_BITFIELD_TYPE_MATTERS defined. See
# documentation, where the test also comes from.
proc check_effective_target_pcc_bitfield_type_matters { } {
global et_pcc_bitfield_type_matters_saved
global et_pcc_bitfield_type_matters_target_name
if { ![info exists et_pcc_bitfield_type_matters_target_name] } {
set et_pcc_bitfield_type_matters_target_name ""
}
# If the target has changed since we set the cached value, clear it.
set current_target [current_target_name]
if { $current_target != $et_pcc_bitfield_type_matters_target_name } {
verbose "check_effective_target_pcc_bitfield_type_matters: `$et_pcc_bitfield_type_matters_target_name'" 2
set et_pcc_bitfield_type_matters_target_name $current_target
if [info exists et_pcc_bitfield_type_matters_saved] {
verbose "check_effective_target_pcc_bitfield_type_matters: removing cached result" 2
unset et_pcc_bitfield_type_matters_saved
}
}
if [info exists et_pcc_bitfield_type_matters_saved] {
verbose "check_effective_target_pcc_bitfield_type_matters: using cached result" 2
} else {
verbose "check_effective_target_pcc_bitfield_type_matters: compiling source" 2
# PCC_BITFIELD_TYPE_MATTERS isn't just about unnamed or empty
# bitfields, but let's stick to the example code from the docs.
set et_pcc_bitfield_type_matters_saved \
[string match "" [get_compiler_messages pcc_bitfield_type_matters assembly {
struct foo1 { char x; char :0; char y; };
struct foo2 { char x; int :0; char y; };
int s[sizeof (struct foo1) != sizeof (struct foo2) ? 1 : -1];
} ]]
}
verbose "check_effective_target_pcc_bitfield_type_matters: returning $et_pcc_bitfield_type_matters_saved" 2
return $et_pcc_bitfield_type_matters_saved
}
# Return 1 if -fpic and -fPIC are supported, as in no warnings or errors
# emitted, 0 otherwise. Whether a shared library can actually be built is
# out of scope for this test.