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authorJF Bastien <jfb@chromium.org>2015-12-23 16:07:43 -0800
committerJF Bastien <jfb@chromium.org>2015-12-23 16:07:43 -0800
commitd049ae31248fd3db11717a3ea006c5d1f59c913d (patch)
tree60c61e360e5bbfd2d80862f93f5bec23372174bb
parentcef89df8e5ad80a0fb881af31804eef854909552 (diff)
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bits: return 32 on ctz32/clz32 of 0 instead of -1
-rw-r--r--src/bits.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/bits.h b/src/bits.h
index 0ae83db3f..98bb96a4f 100644
--- a/src/bits.h
+++ b/src/bits.h
@@ -81,7 +81,7 @@ template<> inline int CountTrailingZeroes<uint32_t>(uint32_t v) {
};
return v ?
(int)tbl[((uint32_t)((v & -(int32_t)v) * 0x077CB531U)) >> 27] :
- -1;
+ 32;
}
template<> inline int CountLeadingZeroes<uint32_t>(uint32_t v) {
@@ -99,7 +99,7 @@ template<> inline int CountLeadingZeroes<uint32_t>(uint32_t v) {
v = v | (v >> 16);
return v ?
(int)tbl[((uint32_t)(v * 0x07C4ACDDU)) >> 27] :
- -1;
+ 32;
}
} // namespace wasm