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| author | Patrick Palka <ppalka@redhat.com> | 2021-03-30 22:57:11 -0400 |
|---|---|---|
| committer | Patrick Palka <ppalka@redhat.com> | 2021-03-30 22:57:11 -0400 |
| commit | a3bf6ce7f2e17f2c977c13df23eb718e7b433dcd (patch) | |
| tree | 6530f01c3cbe5630c0e79f11dbc363933ec0980d /libiberty/testsuite | |
| parent | 0bbf0edbfc782f8e4e416d5fbd1b52a515adb585 (diff) | |
| download | gcc-a3bf6ce7f2e17f2c977c13df23eb718e7b433dcd.zip gcc-a3bf6ce7f2e17f2c977c13df23eb718e7b433dcd.tar.gz gcc-a3bf6ce7f2e17f2c977c13df23eb718e7b433dcd.tar.bz2 | |
c++: Adjust mangling of __alignof__ [PR88115]
r11-4926 made __alignof__ get mangled differently from alignof,
encoding __alignof__ as a vendor extended operator. But this
mangling is problematic for the reasons mentioned in
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88115#c6.
This patch changes our mangling of __alignof__ to instead use the
new "vendor extended expression" syntax that's proposed in
https://github.com/itanium-cxx-abi/cxx-abi/issues/112. Clang does
the same thing already, so after this patch Clang and GCC agree
about the mangling of __alignof__(type) and __alignof__(expr).
gcc/cp/ChangeLog:
PR c++/88115
* mangle.c (write_expression): Adjust the mangling of
__alignof__.
include/ChangeLog:
PR c++/88115
* demangle.h (enum demangle_component_type): Add
DEMANGLE_COMPONENT_VENDOR_EXPR.
libiberty/ChangeLog:
PR c++/88115
* cp-demangle.c (d_dump, d_make_comp, d_expression_1)
(d_count_templates_scopes): Handle DEMANGLE_COMPONENT_VENDOR_EXPR.
(d_print_comp_inner): Likewise.
<case DEMANGLE_COMPONENT_EXTENDED_OPERATOR>: Revert r11-4926
change.
<case DEMANGLE_COMPONENT_UNARY>: Likewise.
* testsuite/demangle-expected: Adjust __alignof__ tests.
gcc/testsuite/ChangeLog:
PR c++/88115
* g++.dg/cpp0x/alignof7.C: Adjust expected mangling.
Diffstat (limited to 'libiberty/testsuite')
| -rw-r--r-- | libiberty/testsuite/demangle-expected | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libiberty/testsuite/demangle-expected b/libiberty/testsuite/demangle-expected index e6b5b64..19a0d62 100644 --- a/libiberty/testsuite/demangle-expected +++ b/libiberty/testsuite/demangle-expected @@ -1471,10 +1471,10 @@ _Z2F2IZ1FvEUlvE_EN1AIT_E1XES2_ A<F()::{lambda()#1}>::X F2<F()::{lambda()#1}>(F()::{lambda()#1}) # PR 88115 -_Z1fIiEvDTv111__alignof__T_E +_Z1fIiEvDTu11__alignof__T_EE void f<int>(decltype (__alignof__(int))) -_Z1fIiEvDTv111__alignof__tlT_EE +_Z1fIiEvDTu11__alignof__XtlT_EEEE void f<int>(decltype (__alignof__(int{}))) _Z1gI1AEv1SIXadsrT_oncviEE |