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| author | Nikhil Benesch <nikhil.benesch@gmail.com> | 2019-02-06 04:48:35 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@gcc.gnu.org> | 2019-02-06 04:48:35 +0000 |
| commit | ce4321c918aa0d17ecd7da6c3deb43524b1729cf (patch) | |
| tree | 33a6eb37062d4aecdffb413b9a1a362331168574 /gcc/go/go-gcc.cc | |
| parent | fbe83e6b4d0308f547ab11de6dc0eda2741cc11f (diff) | |
| download | gcc-ce4321c918aa0d17ecd7da6c3deb43524b1729cf.zip gcc-ce4321c918aa0d17ecd7da6c3deb43524b1729cf.tar.gz gcc-ce4321c918aa0d17ecd7da6c3deb43524b1729cf.tar.bz2 | |
re PR go/89019 (LTO and gccgo cause ICE during free_lang_data)
gcc/go:
PR go/89019
* go-gcc.cc (Gcc_backend::placeholder_struct_type): Mark
placeholder structs as requiring structural equality.
(Gcc_backend::set_placeholder_pointer_type): Propagate the
canonical type from the desired pointer type to the placeholder
pointer type.
gcc/testsuite/:
* lib/go-torture.exp: Test compiling with -flto.
From-SVN: r268572
Diffstat (limited to 'gcc/go/go-gcc.cc')
| -rw-r--r-- | gcc/go/go-gcc.cc | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc/go/go-gcc.cc b/gcc/go/go-gcc.cc index 7fbdd07..4e9e0e3 100644 --- a/gcc/go/go-gcc.cc +++ b/gcc/go/go-gcc.cc @@ -1049,6 +1049,7 @@ Gcc_backend::set_placeholder_pointer_type(Btype* placeholder, } gcc_assert(TREE_CODE(tt) == POINTER_TYPE); TREE_TYPE(pt) = TREE_TYPE(tt); + TYPE_CANONICAL(pt) = TYPE_CANONICAL(tt); if (TYPE_NAME(pt) != NULL_TREE) { // Build the data structure gcc wants to see for a typedef. @@ -1080,6 +1081,12 @@ Gcc_backend::placeholder_struct_type(const std::string& name, get_identifier_from_string(name), ret); TYPE_NAME(ret) = decl; + + // The struct type that eventually replaces this placeholder will require + // structural equality. The placeholder must too, so that the requirement + // for structural equality propagates to references that are constructed + // before the replacement occurs. + SET_TYPE_STRUCTURAL_EQUALITY(ret); } return this->make_type(ret); } |