superfluous TEST instruction

[Vladimir Kozlov]

RFE: 5044093

Vladimir

Ulf Zibis wrote:
> If I understand the Intel manual right, the zero flag is already set 
> from the SHR instruction, so newly testing on 0 by TEST instruction 
> seems superfluous.
> 
> Am I wrong ?
> 
> 
>   0x00b88942: shr    $0x10,%eax         ;*iushr
>                                         ; - 
> java.lang.Character::isBMPCodePoint at 3 (line 2737)
>                                         ; - 
> java.lang.Character::charCount at 1 (line 2907)
>                                         ; - 
> java.lang.Character::charCount at 26 (line 2946)
>   0x00b88945: test   %eax,%eax
>   0x00b88947: je     0x00b88973         ;*ifeq
>                                         ; - 
> java.lang.Character::charCount at 4 (line 2907)
>                                         ; - 
> java.lang.Character::charCount at 26 (line 2946)
> 
> 
> -Ulf
> 
>