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Diffstat (limited to 'js/src/jit/mips64/MacroAssembler-mips64.cpp')
-rw-r--r--js/src/jit/mips64/MacroAssembler-mips64.cpp9
1 files changed, 7 insertions, 2 deletions
diff --git a/js/src/jit/mips64/MacroAssembler-mips64.cpp b/js/src/jit/mips64/MacroAssembler-mips64.cpp
index 657fce93c..e16e5d03f 100644
--- a/js/src/jit/mips64/MacroAssembler-mips64.cpp
+++ b/js/src/jit/mips64/MacroAssembler-mips64.cpp
@@ -1839,8 +1839,13 @@ void
MacroAssemblerMIPS64Compat::tagValue(JSValueType type, Register payload, ValueOperand dest)
{
MOZ_ASSERT(dest.valueReg() != ScratchRegister);
- if (payload != dest.valueReg())
- ma_move(dest.valueReg(), payload);
+ if (type == JSVAL_TYPE_INT32 || type == JSVAL_TYPE_BOOLEAN) {
+ ma_dext(dest.valueReg(), payload, Imm32(0), Imm32(32));
+ } else {
+ if (payload != dest.valueReg()) {
+ ma_move(dest.valueReg(), payload);
+ }
+ }
ma_li(ScratchRegister, ImmTag(JSVAL_TYPE_TO_TAG(type)));
ma_dins(dest.valueReg(), ScratchRegister, Imm32(JSVAL_TAG_SHIFT), Imm32(64 - JSVAL_TAG_SHIFT));
}