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28 lines
1.2 KiB
Diff
28 lines
1.2 KiB
Diff
diff -urN chromium-38.0.2125.101.orig/v8/src/utils.h chromium-38.0.2125.101/v8/src/utils.h
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--- chromium-38.0.2125.101.orig/v8/src/utils.h 2014-10-08 18:43:51.379129324 +0400
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+++ chromium-38.0.2125.101/v8/src/utils.h 2014-10-08 18:47:01.820047847 +0400
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@@ -1351,20 +1351,10 @@
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void CopyCharsUnsigned(sinkchar* dest, const sourcechar* src, int chars) {
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sinkchar* limit = dest + chars;
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#ifdef V8_HOST_CAN_READ_UNALIGNED
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- if (sizeof(*dest) == sizeof(*src)) {
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- if (chars >= static_cast<int>(kMinComplexMemCopy / sizeof(*dest))) {
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- MemCopy(dest, src, chars * sizeof(*dest));
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- return;
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- }
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- // Number of characters in a uintptr_t.
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- static const int kStepSize = sizeof(uintptr_t) / sizeof(*dest); // NOLINT
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- DCHECK(dest + kStepSize > dest); // Check for overflow.
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- while (dest + kStepSize <= limit) {
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- *reinterpret_cast<uintptr_t*>(dest) =
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- *reinterpret_cast<const uintptr_t*>(src);
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- dest += kStepSize;
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- src += kStepSize;
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- }
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+ if ((sizeof(*dest) == sizeof(*src)) &&
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+ (chars >= static_cast<int>(kMinComplexMemCopy / sizeof(*dest)))) {
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+ MemCopy(dest, src, chars * sizeof(*dest));
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+ return;
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}
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#endif
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while (dest < limit) {
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