dag combine crash on x86-64 ABI created i128

[EdSchouten]

Bugzilla Link	3763
Resolution	FIXED
Resolved on	Mar 09, 2009 15:23
Version	trunk
OS	FreeBSD
Blocks	#4068
Attachments	Testcase
CC	@pwo

Extended Description

When compiling the attached code with -O2, you get the following error:

Assertion failed: (getMinSignedBits() <= 64 && "Too many bits for int64_t"), function getSExtValue, file llvm/include/llvm/ADT/APInt.h, line 1051.
Stack dump:
0. Program arguments: clang -S -disable-free --relocation-model=static --disable-fp-elim --unwind-tables=0 --fmath-errno=1 -O2 -o - -x c test.c

1. parser at end of file
2. Code generation
3. Running pass 'X86 DAG->DAG Instruction Selection' on function '@evUTCTime'

[EdSchouten]

Forgot to mention: this is on AMD64.

[lattner]

testcase
reduced testcase, repro with llc

[lattner]

Fixed:
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20090309/074891.html