Package: clang-3.2
Version: 1:3.2-1~exp7
Severity: normal
Dear Maintainer,
I'm almost completely certain that this regressed after upgrading
from 3.2-1~exp5 to 1:3.2-1~exp7
I *am* certain that clang 3.2 on another system (Gentoo) does not
experience this problem.
The complete error message is:
fatal error: error in backend: Cannot select: 0x1e09520: i32 = fabs 0x1e0e020
[ORD=16] [ID=31]
0x1e0e020: i32 = zero_extend 0x1e0db20 [ID=30]
0x1e0db20: i8 = X86ISD::SETCC 0x1e0da20, 0x1e05c80:1 [ID=28]
0x1e0da20: i8 = Constant<9> [ID=13]
0x1e05c80: i32,i32 = X86ISD::SUB 0x1e09920, 0x1e05a80 [ID=26]
0x1e09920: i32 = add 0x1e05e80, 0x1e09b20 [ORD=12] [ID=24]
0x1e05e80: i32,ch = load 0x1e09320, 0x1e05980,
0x1e06280<LD4[%33](align=8)(tbaa=!"any pointer")> [ORD=11] [ID=23]
0x1e05980: i32 = FrameIndex<5> [ORD=8] [ID=3]
0x1e06280: i32 = undef [ORD=10] [ID=5]
0x1e09b20: i32 = Constant<-12> [ORD=12] [ID=8]
0x1e05a80: i32 = X86ISD::Wrapper 0x1e09620 [ID=18]
0x1e09620: i32 = TargetGlobalAddress<[0 x i32]*
@_ZNSs4_Rep20_S_empty_rep_storageE> 0 [ID=16]
In function: _Z9term_funcv
Compiling to .ll first succeeds, but then gives a slightly different message
when compiling that to .o:
ladmin.ll:38:18: error: invalid forward reference to function 'llvm.fabs.i32'
with wrong type!
%16 = call i32 @llvm.fabs.i32(i32 %15, i32 0) nounwind
Preprocessing with gcc 4.6, 4.7, or 4.8 makes no difference.
Command line:
$ clang++ -m32 -std=c++0x -O2 -c -o ladmin.o ladmin.cpp
/// BEGIN ladmin.cpp
#include <string>
struct const_string
{
const_string(const std::string& s);
const_string(std::string&&) = delete;
};
void ladmin_log(const_string);
void term_func(void)
{
ladmin_log(
static_cast<const std::string&>(
(
std::string()
)
)
);
}
/// END ladmin.cpp
-- System Information:
Debian Release: 7.0
APT prefers testing
APT policy: (500, 'testing'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 3.2.0-4-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages clang-3.2 depends on:
ii compiler-rt 1:3.2-1~exp7
ii libc6 2.16-0experimental1
ii libclang-common-dev 1:3.2-1~exp7
ii libffi5 3.0.10-3
ii libgcc-4.7-dev 4.7.2-14
ii libgcc1 1:4.8-20130105-1
ii libllvm3.2 3.2~rc3-1~exp1
ii libobjc-4.7-dev 4.7.2-14
ii libstdc++6 4.8-20130105-1
ii libstdc++6-4.7-dev 4.7.2-14
Versions of packages clang-3.2 recommends:
ii llvm-3.2-dev 3.2~rc3-1~exp1
ii python 2.7.3-4
clang-3.2 suggests no packages.
-- no debconf information
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