http://llvm.org/bugs/show_bug.cgi?id=3426
Summary: lli fails cast assertion.
Product: new-bugs
Version: unspecified
Platform: PC
URL: http://shootout.alioth.debian.org/u32q/benchmark.php?tes
t=binarytrees&lang=gcc&id=5
OS/Version: Linux
Status: NEW
Keywords: regression
Severity: critical
Priority: P2
Component: new bugs
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
Compiling and trying to run the bitcode of the binarytrees benchmark crashes
lli.
The following bitcode was compiled both with version 2.2 and 2.4 from Debian
unstable and experimental respectively.
$ lli -version
Low Level Virtual Machine (http://llvm.org/):
llvm version 2.4 (Debian 2.4-1~exp1)
Optimized build with assertions.
Compiling to a native binary with llvm-gcc works fine.
Using version 2.2 there was no errors (in fact lli was faster than gcc)
Step 1, compile
$ llvm-gcc binarytrees.c -emit-llvm -c -o binarytrees.bc
Step 2, run with a large input (for me, the limit is at 18, 17 and below works
and 18 and above crashes)
$ lli binarytrees.bc 18
stretch tree of depth 19 check: -1
lli: /build/buildd/llvm-2.4/include/llvm/Support/Casting.h:199: typename
llvm::cast_retty<To, From>::ret_type llvm::cast(const Y&) [with X =
llvm::Instruction, Y = llvm::User*]: Assertion `isa<X>(Val) && "cast<Ty>()
argument of incompatible type!"' failed.
lli[0x85972aa]
/lib/libc.so.6(abort+0x188)[0xb7d6dd78]
/lib/libc.so.6(__assert_fail+0xf0)[0xb7d65590]
lli[0x84b0a2b]
[0x9e69bc0]
[0xa]
Aborted
Running the file with the latest lli (from svn)
$ /usr/local/bin/lli binarytrees.bc 18
stretch tree of depth 19 check: -1
lli: /build/llvm/include/llvm/Support/Casting.h:199: typename
llvm::cast_retty<To, From>::ret_type llvm::cast(const Y&) [with X =
llvm::Instruction, Y = llvm::User*]: Assertion `isa<X>(Val) && "cast<Ty>()
argument of incompatible type!"' failed.
0 lli 0x08973066
1 lli 0x089733a8
2 0xb7f68400 __kernel_sigreturn + 0
3 libc.so.6 0xb7d05d78 abort + 392
4 libc.so.6 0xb7cfd590 __assert_fail + 240
5 lli 0x086510a7
6 lli 0x088163f5
7 lli 0x08816cf1
8 lli 0x08817de1
9 lli 0x089101ad llvm::FPPassManager::runOnFunction(llvm::Function&) +
249
10 lli 0x08910c22 llvm::FunctionPassManagerImpl::run(llvm::Function&) +
116
11 lli 0x08910d83 llvm::FunctionPassManager::run(llvm::Function&) + 137
12 lli 0x085b3f23 llvm::JIT::runJITOnFunction(llvm::Function*) + 119
13 lli 0x085b4315 llvm::JIT::getPointerToFunction(llvm::Function*) + 649
14 lli 0x085bd431
15 lli 0x0855b8f1 X86CompilationCallback2 + 142
16 lli 0x0855b529
17 lli 0xb6d57ffd
18 libc.so.6 0xb7da4bee clone + 94
Aborted
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