Version 3.25.28.12 (merged r20544, r20645, r20664, r20553)

src/x64/macro-assembler-x64.cc

Index: src/x64/macro-assembler-x64.cc
diff --git a/src/x64/macro-assembler-x64.cc b/src/x64/macro-assembler-x64.cc
index 6f313f7a66383d953c52046a7af75b76c0e7687d..0ccb1e3e04f5bc1aba12f7558fc822d188ae5afa 100644
--- a/src/x64/macro-assembler-x64.cc
+++ b/src/x64/macro-assembler-x64.cc
@@ -3212,6 +3212,8 @@ void MacroAssembler::TruncateHeapNumberToI(Register result_reg,
   }
 
   bind(&done);
+  // Keep our invariant that the upper 32 bits are zero.
+  movl(result_reg, result_reg);
 }
 
 
@@ -3228,6 +3230,8 @@ void MacroAssembler::TruncateDoubleToI(Register result_reg,
   addp(rsp, Immediate(kDoubleSize));
 
   bind(&done);
+  // Keep our invariant that the upper 32 bits are zero.
+  movl(result_reg, result_reg);
 }