Error: suffix or operands invalid for `sar'

[regehr]

Bugzilla Link	3242
Resolution	FIXED
Resolved on	Dec 20, 2008 11:22
Version	unspecified
OS	Linux
CC	@sunfishcode

Extended Description

Seen using r61273 on Ubuntu Hardy on x86.

regehr@john-home:/volatile/tmp79$ llvm-gcc -O0 small.c
small.c: In function ‘func_105’:
small.c:23: warning: right shift count >= width of type
/tmp/ccOHrIz8.s: Assembler messages:
/tmp/ccOHrIz8.s:36: Error: suffix or operands invalid for `sar'
regehr@john-home:/volatile/tmp79$ cat small.c
typedef char int8_t;
typedef int int32_t;
typedef char uint32_t;
uint32_t
func_105 (int32_t p_106)
{
1, func_51 (1) || 0x5296D32418DFC5AELL
&& 0x5296D32418DFC5AELL > +0x5296D32418DFC5AELL
&& -9223372036854775807LL - 1 + 0x5296D32418DFC5AELL
|| 0x5296D32418DFC5AELL && 0x5296D32418DFC5AELL < +0x5296D32418DFC5AELL
&& 0x5296D32418DFC5AELL <
+0x5296D32418DFC5AELL ? : 0x5296D32418DFC5AELL * 0 >=
sizeof (int8_t) * 8 ? 1 : p_106 >> (0x5296D32418DFC5AELL
&& 0x5296D32418DFC5AELL >
+0x5296D32418DFC5AELL
&& +0x5296D32418DFC5AELL
|| 0x5296D32418DFC5AELL
&& 0x5296D32418DFC5AELL <
+0x5296D32418DFC5AELL
&& 0x5296D32418DFC5AELL <
+0x5296D32418DFC5AELL ?
0x5296D32418DFC5AELL :
0x5296D32418DFC5AELL), 1 ? 1 : 1, 1;
}

[sunfishcode]

Undefined behavior doesn't mean we get to emit invalid asm :-). Fixed here:
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20081215/071388.html