RFR: C2 should use heapword-sized object math

[Christine Flood]

ok

On Thu, Nov 30, 2017 at 5:48 AM, Roman Kennke <rkennke at redhat.com> wrote:
> Ok
>
> Am 30. November 2017 11:13:55 MEZ schrieb Aleksey Shipilev <shade at redhat.com>:
>>I'm playing with 32-bit builds. This one fixes one of the compiler
>>bugs:
>>
>>diff -r 46091fe1a0bc src/hotspot/share/opto/macro.cpp
>>--- a/src/hotspot/share/opto/macro.cpp Mon Nov 27 18:42:57 2017 +0100
>>+++ b/src/hotspot/share/opto/macro.cpp Thu Nov 30 11:12:52 2017 +0100
>>@@ -1449,7 +1449,7 @@
>>     Node* init_size_in_bytes = size_in_bytes;
>>     if (UseShenandoahGC) {
>>      // Allocate several words more for the Shenandoah brooks pointer.
>>-      size_in_bytes = new AddLNode(size_in_bytes,
>>_igvn.MakeConX(BrooksPointer::byte_size()));
>>+      size_in_bytes = new AddXNode(size_in_bytes,
>>_igvn.MakeConX(BrooksPointer::byte_size()));
>>       transform_later(size_in_bytes);
>>     }
>>
>>Testing: hotspot_gc_shenandoah (fastdebug, Linux x86_64)
>>
>>Thanks,
>>-Aleksey
>
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