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Type: Bug
Resolution: Fixed
Priority: P4
Fix Version/s: hs18
Affects Version/s: hs18
Component/s: hotspot
Labels:
- verify-waive-setup

Subcomponent:
compiler
Resolved In Build:
b04
CPU:

x86
OS:

generic

Issue	Fix Version	Assignee	Priority	Status	Resolution	Resolved In Build
JDK-2192542	7	Igor Veresov	P4	Closed	Fixed	b92
JDK-2198025	6u23	Igor Veresov	P4	Resolved	Fixed	b01
JDK-2199978	6u22m	Igor Veresov	P4	Resolved	Fixed	b01
JDK-2193583	6u21p	Igor Veresov	P4	Resolved	Fixed	b03

C1 does sign-extension when it loads ints and shorts from memory to 64-bit registers. This cases problems for C2 in tiered, because it relies on the fact the int passed in a 64 bit register is zero-extended.
Webrev: http://cr.openjdk.java.net/~iveresov/6946892/webrev.00/

backported by

JDK-2193583 c1 shouldn't do sign-extend to upper 32bits on x64

Resolved

JDK-2198025 c1 shouldn't do sign-extend to upper 32bits on x64

Resolved

JDK-2199978 c1 shouldn't do sign-extend to upper 32bits on x64

Resolved

JDK-2192542 c1 shouldn't do sign-extend to upper 32bits on x64

Closed

Assignee:: Igor Veresov

Reporter:: Igor Veresov

Votes:: 0 Vote for this issue

Watchers:: 0 Start watching this issue

Created:: 2010-04-23 12:25

Updated:: 2010-09-24 14:25

Resolved:: 2010-05-04 18:43

Imported:: 16/Sep/12 10:28 PM

Indexed:: 19/Jul/12 4:36 PM

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