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Bug 1192277 - remove check for LLVM PR 8927; r=glandium

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The PR was fixed in early 2011.  clang 3.3, the oldest version of clang
that we build with, was released in mid-2013.  It's safe to say that all
versions of clang now have this fix, and we can delete the check.
This commit is contained in:
Nathan Froyd 2015-08-07 19:35:43 -04:00
parent 96c7e20fe3
commit d903c2ee7e
4 changed files with 0 additions and 56 deletions
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1
aclocal.m4 vendored
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@ -19,7 +19,6 @@ builtin(include, build/autoconf/mozprog.m4)dnl
builtin(include, build/autoconf/mozheader.m4)dnl
builtin(include, build/autoconf/mozcommonheader.m4)dnl
builtin(include, build/autoconf/lto.m4)dnl
builtin(include, build/autoconf/llvm-pr8927.m4)dnl
builtin(include, build/autoconf/frameptr.m4)dnl
builtin(include, build/autoconf/compiler-opts.m4)dnl
builtin(include, build/autoconf/expandlibs.m4)dnl

52
build/autoconf/llvm-pr8927.m4
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@ -1,52 +0,0 @@
dnl This Source Code Form is subject to the terms of the Mozilla Public
dnl License, v. 2.0. If a copy of the MPL was not distributed with this
dnl file, You can obtain one at http://mozilla.org/MPL/2.0/.
dnl Check if the compiler suffers from http://llvm.org/pr8927. If so, ask the
dnl user to upgrade.
AC_DEFUN([MOZ_LLVM_PR8927],
[
AC_MSG_CHECKING(for llvm pr8927)
ac_have_llvm_pr8927="no"
AC_LANG_SAVE
AC_LANG_C
_SAVE_CFLAGS=$CFLAGS
CFLAGS="-O2"
AC_TRY_RUN([
struct foobar {
int x;
};
static const struct foobar* foo() {
static const struct foobar d = { 0 };
return &d;
}
static const struct foobar* bar() {
static const struct foobar d = { 0 };
return &d;
}
__attribute__((noinline)) int zed(const struct foobar *a,
const struct foobar *b) {
return a == b;
}
int main() {
return zed(foo(), bar());
}
], true,
ac_have_llvm_pr8927="yes",
true)
CFLAGS="$_SAVE_CFLAGS"
AC_LANG_RESTORE
if test "$ac_have_llvm_pr8927" = "yes"; then
AC_MSG_RESULT(yes)
echo This compiler would miscompile firefox, please upgrade.
echo see http://developer.mozilla.org/en-US/docs/Developer_Guide/Build_Instructions/Mac_OS_X_Prerequisites
echo for more information.
exit 1
else
AC_MSG_RESULT(no)
fi
])

2
configure.in
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@ -2643,8 +2643,6 @@ esac
AC_SUBST(WRAP_SYSTEM_INCLUDES)
AC_SUBST(VISIBILITY_FLAGS)
MOZ_LLVM_PR8927
dnl Checks for header files.
dnl ========================================================
AC_HEADER_DIRENT

1
js/src/aclocal.m4 vendored
View File

@ -18,7 +18,6 @@ builtin(include, ../../build/autoconf/mozprog.m4)dnl
builtin(include, ../../build/autoconf/mozheader.m4)dnl
builtin(include, ../../build/autoconf/mozcommonheader.m4)dnl
builtin(include, ../../build/autoconf/lto.m4)dnl
builtin(include, ../../build/autoconf/llvm-pr8927.m4)dnl
builtin(include, ../../build/autoconf/frameptr.m4)dnl
builtin(include, ../../build/autoconf/compiler-opts.m4)dnl
builtin(include, ../../build/autoconf/expandlibs.m4)dnl