[LLVMbugs] [Bug 4612] New: Assert failure: getConstant with a uint64_t value that doesn't fit in the type!
bugzilla-daemon at cs.uiuc.edu
bugzilla-daemon at cs.uiuc.edu
Thu Jul 23 10:05:52 PDT 2009
http://llvm.org/bugs/show_bug.cgi?id=4612
Summary: Assert failure: getConstant with a uint64_t value that
doesn't fit in the type!
Product: clang
Version: unspecified
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P2
Component: LLVM Codegen
AssignedTo: unassignedclangbugs at nondot.org
ReportedBy: docmach+llvm at gmail.com
CC: llvmbugs at cs.uiuc.edu
Created an attachment (id=3236)
--> (http://llvm.org/bugs/attachment.cgi?id=3236)
Code to reproduce bug
When compiling the attached code with -O3 the compilation fails. It succeeds
if no optimization flags are used.
main.c:5:24: warning: implicitly declaring C library function 'malloc' with
type
'void *(unsigned long)'
int * largeArray = malloc(largeSize*sizeof(int));
^
main.c:5:24: note: please include the header <stdlib.h> or explicitly provide a
declaration for 'malloc'
clang-cc: SelectionDAG.cpp:872: llvm::SDValue
llvm::SelectionDAG::getConstant(uint64_t, llvm::MVT, bool): Assertion
`(EltVT.getSizeInBits() >= 64 || (uint64_t)((int64_t)Val >>
EltVT.getSizeInBits()) + 1 < 2) && "getConstant with a uint64_t value that
doesn't fit in the type!"' failed.
0 clang-cc 0x00000000011bdc7f
1 clang-cc 0x00000000011be069
2 libpthread.so.0 0x00007fe5e4aa5a10
3 libc.so.6 0x00007fe5e3dca205 gsignal + 53
4 libc.so.6 0x00007fe5e3dcb723 abort + 387
5 libc.so.6 0x00007fe5e3dc3229 __assert_fail + 233
6 clang-cc 0x0000000000d94e2b
7 clang-cc 0x0000000000db31bd
8 clang-cc 0x0000000000dd944c
9 clang-cc 0x0000000000dd9841
10 clang-cc 0x0000000000ddb5ef
11 clang-cc 0x00000000011529ea
12 clang-cc 0x0000000001152bf6
13 clang-cc 0x0000000001152e60
14 clang-cc 0x000000000044ba1d
15 clang-cc 0x000000000044c1c7
16 clang-cc 0x000000000063457d
17 clang-cc 0x0000000000431209
18 clang-cc 0x000000000043a1d2 main + 5506
19 libc.so.6 0x00007fe5e3db65c6 __libc_start_main + 230
20 clang-cc 0x000000000042ee29
Stack dump:
0. Program arguments: /opt/src/llvm/Release/bin/clang-cc -triple
x86_64-unknown-linux-gnu -S -disable-free -main-file-name main.c
--relocation-model static --disable-fp-elim --unwind-tables=1 --mcpu=x86-64
--fmath-errno=1 -O3 -fdiagnostics-show-option -o /tmp/cc-UKxix3.s -x c main.c
1. <eof> parser at end of file
2. Code generation
3. Running pass 'X86 DAG->DAG Instruction Selection' on function '@main'
clang: error: compiler command failed due to signal 6 (use -v to see
invocation)
This is with llvm r76880 and clang r76881
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