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13 lines
628 B
Diff
13 lines
628 B
Diff
asm clobbers do not work for clang < 9 and apple-clang < 11 (found by SpaceIm)
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--- snappy.cc
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+++ snappy.cc
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@@ -1026,7 +1026,7 @@
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size_t literal_len = *tag >> 2;
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size_t tag_type = *tag;
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bool is_literal;
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-#if defined(__GNUC__) && defined(__x86_64__)
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+#if defined(__GNUC__) && defined(__x86_64__) && ( (!defined(__clang__) && !defined(__APPLE__)) || (!defined(__APPLE__) && defined(__clang__) && (__clang_major__ >= 9)) || (defined(__APPLE__) && defined(__clang__) && (__clang_major__ > 11)) )
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// TODO clang misses the fact that the (c & 3) already correctly
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// sets the zero flag.
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asm("and $3, %k[tag_type]\n\t"
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