Request for review(XXS): 6946892 c1 shouldn't sign-extend to upper 32bits on x64

Igor Veresov igor.veresov at
Fri Apr 23 21:13:50 PDT 2010

C1 does sign-extension when it loads ints and shorts from memory to 
64-bit registers. This causes problems for C2 because it relies on the 
fact the int passed in a 64-bit register is zero-extended.



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