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Unified Diff: src/x64/lithium-codegen-x64.cc

Issue 22578002: Handle Symbols in the LBranch instruction on x64. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 7 years, 4 months ago
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Index: src/x64/lithium-codegen-x64.cc
diff --git a/src/x64/lithium-codegen-x64.cc b/src/x64/lithium-codegen-x64.cc
index d4c125bcdc6e9a62ab74cfd01ee7c9504ec456f9..16430be21aa6e46673ae2cdcec86444da7379c1c 100644
--- a/src/x64/lithium-codegen-x64.cc
+++ b/src/x64/lithium-codegen-x64.cc
@@ -1996,6 +1996,12 @@ void LCodeGen::DoBranch(LBranch* instr) {
__ bind(&not_string);
}
+ if (expected.Contains(ToBooleanStub::SYMBOL)) {
+ // Symbol value -> true.
+ __ CmpInstanceType(map, SYMBOL_TYPE);
+ __ j(equal, instr->TrueLabel(chunk_));
+ }
+
if (expected.Contains(ToBooleanStub::HEAP_NUMBER)) {
// heap number -> false iff +0, -0, or NaN.
Label not_heap_number;
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