Fix xcode build for real.

Fix xcode build for real.

R=vegorov@google.com

Committed: https://code.google.com/p/dart/source/detail?r=39909

[Florian Schneider, 2014-09-05 11:11:10]

fschneider@google.com changed reviewers:
+ vegorov@google.com

[Vyacheslav Egorov (Google), 2014-09-05 11:18:50]

https://codereview.chromium.org/540303002/diff/1/runtime/vm/flow_graph_compil...
File runtime/vm/flow_graph_compiler.cc (right):

https://codereview.chromium.org/540303002/diff/1/runtime/vm/flow_graph_compil...
runtime/vm/flow_graph_compiler.cc:1359: uword blocked_mask = ((blocked >
kNoRegister) ? 1 << blocked : 0)
how about this:

static inline uword rmask(Register r) {
  return (r != kNoRegister) ? (1 << r) : 0;
}

uword blocked_mask = rmask(blocked)
                   | 1 << CTX                       
                   | 1 << SPREG 
                   | 1 << FPREG 
                   | rmask(TMP) 
                   | rmask(TMP2) 
                   | rmask(PP)

[Vyacheslav Egorov (Google), 2014-09-05 11:29:45]

lgtm

https://codereview.chromium.org/540303002/diff/40001/runtime/vm/flow_graph_co...
File runtime/vm/flow_graph_compiler.cc (right):

https://codereview.chromium.org/540303002/diff/40001/runtime/vm/flow_graph_co...
runtime/vm/flow_graph_compiler.cc:1355: return reg != kNoRegister ? 1 << reg :
0;
(1 << reg)

(reg != kNoRegister)

[Florian Schneider, 2014-09-05 11:30:43]

Committed patchset #3 (id:40001) manually as r39909 (presubmit successful).