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Unified Diff: runtime/vm/flow_graph_compiler_ia32.cc

Issue 798643003: Pass condition result explicitly. Do not imply the existence of a status (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/
Patch Set: Created 6 years ago
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Index: runtime/vm/flow_graph_compiler_ia32.cc
===================================================================
--- runtime/vm/flow_graph_compiler_ia32.cc (revision 42293)
+++ runtime/vm/flow_graph_compiler_ia32.cc (working copy)
@@ -1375,10 +1375,11 @@
}
-void FlowGraphCompiler::EmitEqualityRegConstCompare(Register reg,
- const Object& obj,
- bool needs_number_check,
- intptr_t token_pos) {
+Condition FlowGraphCompiler::EmitEqualityRegConstCompare(
+ Register reg,
+ const Object& obj,
+ bool needs_number_check,
+ intptr_t token_pos) {
ASSERT(!needs_number_check ||
(!obj.IsMint() && !obj.IsDouble() && !obj.IsBigint()));
@@ -1385,7 +1386,7 @@
if (obj.IsSmi() && (Smi::Cast(obj).Value() == 0)) {
ASSERT(!needs_number_check);
__ testl(reg, reg);
- return;
+ return EQUAL;
}
if (needs_number_check) {
@@ -1402,19 +1403,20 @@
Isolate::kNoDeoptId,
token_pos);
}
+ // Stub returns result in flags (result of a cmpl, we need ZF computed).
__ popl(reg); // Discard constant.
__ popl(reg); // Restore 'reg'.
- return;
+ } else {
+ __ CompareObject(reg, obj);
}
-
- __ CompareObject(reg, obj);
+ return EQUAL;
}
-void FlowGraphCompiler::EmitEqualityRegRegCompare(Register left,
- Register right,
- bool needs_number_check,
- intptr_t token_pos) {
+Condition FlowGraphCompiler::EmitEqualityRegRegCompare(Register left,
+ Register right,
+ bool needs_number_check,
+ intptr_t token_pos) {
if (needs_number_check) {
StubCode* stub_code = isolate()->stub_code();
__ pushl(left);
@@ -1442,6 +1444,7 @@
} else {
__ cmpl(left, right);
}
+ return EQUAL;
}
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