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author | Benjamin Kramer <benny.kra@googlemail.com> | 2013-06-01 11:26:39 +0000 |
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committer | Benjamin Kramer <benny.kra@googlemail.com> | 2013-06-01 11:26:39 +0000 |
commit | 8e851920c0dc16d10db3c4330152a27787aba785 (patch) | |
tree | 02e9f658bec510c5b8aeaa87083e8a53419765a6 /lib/Support/APInt.cpp | |
parent | 77e5c2a1791b4f0338820e377bd255858bde64d5 (diff) | |
download | external_llvm-8e851920c0dc16d10db3c4330152a27787aba785.zip external_llvm-8e851920c0dc16d10db3c4330152a27787aba785.tar.gz external_llvm-8e851920c0dc16d10db3c4330152a27787aba785.tar.bz2 |
APInt: Simplify code. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183073 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Support/APInt.cpp')
-rw-r--r-- | lib/Support/APInt.cpp | 38 |
1 files changed, 2 insertions, 36 deletions
diff --git a/lib/Support/APInt.cpp b/lib/Support/APInt.cpp index 108675d..89f96bd 100644 --- a/lib/Support/APInt.cpp +++ b/lib/Support/APInt.cpp @@ -2304,24 +2304,7 @@ namespace { static unsigned int partMSB(integerPart value) { - unsigned int n, msb; - - if (value == 0) - return -1U; - - n = integerPartWidth / 2; - - msb = 0; - do { - if (value >> n) { - value >>= n; - msb += n; - } - - n >>= 1; - } while (n); - - return msb; + return findLastSet(value, ZB_Max); } /* Returns the bit number of the least significant set bit of a @@ -2329,24 +2312,7 @@ namespace { static unsigned int partLSB(integerPart value) { - unsigned int n, lsb; - - if (value == 0) - return -1U; - - lsb = integerPartWidth - 1; - n = integerPartWidth / 2; - - do { - if (value << n) { - value <<= n; - lsb -= n; - } - - n >>= 1; - } while (n); - - return lsb; + return findFirstSet(value, ZB_Max); } } |