Reviewers: Benedikt Meurer, akos.palfi.imgtec, balazs.kilvady, danno,
Jakob, paul.l...,
Message:
PTAL.
Description:
Change bit pattern of hole nan to reflect different sNan encoding on mips
HW.
TEST=
BUG=
Please review this at https://codereview.chromium.org/945813002/
Base URL: https://chromium.googlesource.com/v8/v8.git@master
Affected files (+7, -1 lines):
M src/globals.h
Index: src/globals.h
diff --git a/src/globals.h b/src/globals.h
index
32396d89ea3d2415a2e10938d3a83049055b9740..8fd7c0822c73bde9be342c82250b3db55a5c050d
100644
--- a/src/globals.h
+++ b/src/globals.h
@@ -696,9 +696,15 @@ enum ScopeType {
ARROW_SCOPE // The top-level scope for an arrow function literal.
};
-
+// The mips architecture prior to revision 5 has inverted encoding for
sNaN.
+#if (V8_TARGET_ARCH_MIPS && !defined(_MIPS_ARCH_MIPS32R6)) || \
+ (V8_TARGET_ARCH_MIPS64 && !defined(_MIPS_ARCH_MIPS64R6))
+const uint32_t kHoleNanUpper32 = 0xFFFF7FFF;
+const uint32_t kHoleNanLower32 = 0xFFFF7FFF;
+#else
const uint32_t kHoleNanUpper32 = 0xFFF7FFFF;
const uint32_t kHoleNanLower32 = 0xFFF7FFFF;
+#endif
const uint64_t kHoleNanInt64 =
(static_cast<uint64_t>(kHoleNanUpper32) << 32) | kHoleNanLower32;
--
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