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Bug 1191884 - remove now-unnecessary check for GCC PR49911; r=glandium

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This PR was fixed in the GCC 4.7 development cycle.  Since we require
GCC 4.7 now, we no longer have to check for this bug.
This commit is contained in:
Nathan Froyd 2015-08-06 20:41:38 -04:00
parent edce567d24
commit e46a140f9e
5 changed files with 0 additions and 75 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/gcc-pr49911.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

71
build/autoconf/gcc-pr49911.m4
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@ -1,71 +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 is gcc and has PR49911. If so
dnl disable vrp.
AC_DEFUN([MOZ_GCC_PR49911],
[
if test "$GNU_CC"; then
AC_MSG_CHECKING(for gcc PR49911)
ac_have_gcc_pr49911="no"
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
_SAVE_CXXFLAGS=$CXXFLAGS
CXXFLAGS="-O2"
AC_TRY_RUN([
extern "C" void abort(void);
typedef enum {
eax, ecx, edx, ebx, esp, ebp,
esi, edi }
RegisterID;
union StateRemat {
RegisterID reg_;
int offset_;
};
static StateRemat FromRegister(RegisterID reg) {
StateRemat sr;
sr.reg_ = reg;
return sr;
}
static StateRemat FromAddress3(int address) {
StateRemat sr;
sr.offset_ = address;
if (address < 46 && address >= 0) {
abort();
}
return sr;
}
struct FrameState {
StateRemat dataRematInfo2(bool y, int z) {
if (y) return FromRegister(RegisterID(1));
return FromAddress3(z);
}
};
FrameState frame;
StateRemat x;
__attribute__((noinline)) void jsop_setelem(bool y, int z) {
x = frame.dataRematInfo2(y, z);
}
int main(void) {
jsop_setelem(0, 47);
}
], true,
ac_have_gcc_pr49911="yes",
true)
CXXFLAGS="$_SAVE_CXXFLAGS"
AC_LANG_RESTORE
if test "$ac_have_gcc_pr49911" = "yes"; then
AC_MSG_RESULT(yes)
CFLAGS="$CFLAGS -fno-tree-vrp"
CXXFLAGS="$CXXFLAGS -fno-tree-vrp"
else
AC_MSG_RESULT(no)
fi
fi
])

1
configure.in
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@ -2643,7 +2643,6 @@ esac
AC_SUBST(WRAP_SYSTEM_INCLUDES)
AC_SUBST(VISIBILITY_FLAGS)
MOZ_GCC_PR49911
MOZ_LLVM_PR8927
dnl Check for __force_align_arg_pointer__ for SSE2 on gcc

1
js/src/aclocal.m4 vendored
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@ -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/gcc-pr49911.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

1
js/src/configure.in
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@ -2158,7 +2158,6 @@ esac
AC_SUBST(WRAP_SYSTEM_INCLUDES)
AC_SUBST(VISIBILITY_FLAGS)
MOZ_GCC_PR49911
MOZ_LLVM_PR8927
dnl Checks for header files.