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Unified Diff: runtime/vm/intermediate_language_x64.cc

Issue 285403004: Adds intrinsics for arm64. (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/
Patch Set: Created 6 years, 7 months ago
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Index: runtime/vm/intermediate_language_x64.cc
===================================================================
--- runtime/vm/intermediate_language_x64.cc (revision 36300)
+++ runtime/vm/intermediate_language_x64.cc (working copy)
@@ -2594,6 +2594,8 @@
Register result) {
if (!range->IsWithin(-0x20000000000000LL, 0x20000000000000LL)) {
ASSERT(overflow != NULL);
+ // TODO(zra): This can be tightened to one compare/branch using:
+ // overflow = (result + 2^52) > 2^53 with an unsigned comparison.
__ CompareImmediate(result, Immediate(-0x20000000000000LL), PP);
__ j(LESS, overflow);
__ CompareImmediate(result, Immediate(0x20000000000000LL), PP);
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