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| author | Logan Chien <loganchien@google.com> | 2011-11-25 08:46:08 +0800 |
|---|---|---|
| committer | Logan Chien <loganchien@google.com> | 2011-11-25 13:43:44 +0800 |
| commit | 1429059dc0129c1cec938c29d6fce89e14293241 (patch) | |
| tree | ec4c55e5138c7eb9ad0313d4af895ad0c56d0978 /lib/Support/ConstantRange.cpp | |
| parent | 1035c3e84815607b4f8994cab03ae62cc8519a63 (diff) | |
| parent | 705f2431a086bbe662bca0035938e774378de3ec (diff) | |
| download | external_llvm-1429059dc0129c1cec938c29d6fce89e14293241.zip external_llvm-1429059dc0129c1cec938c29d6fce89e14293241.tar.gz external_llvm-1429059dc0129c1cec938c29d6fce89e14293241.tar.bz2 | |
Merge with LLVM upstream r145126 (Nov 25th 2011)
Change-Id: I30d08ae004a4c3c74092ad2537ab30cce4280e1d
Diffstat (limited to 'lib/Support/ConstantRange.cpp')
| -rw-r--r-- | lib/Support/ConstantRange.cpp | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/lib/Support/ConstantRange.cpp b/lib/Support/ConstantRange.cpp index c29cb53..5743479 100644 --- a/lib/Support/ConstantRange.cpp +++ b/lib/Support/ConstantRange.cpp @@ -466,10 +466,8 @@ ConstantRange ConstantRange::signExtend(uint32_t DstTySize) const { /// correspond to the possible range of values as if the source range had been /// truncated to the specified type. ConstantRange ConstantRange::truncate(uint32_t DstTySize) const { - unsigned SrcTySize = getBitWidth(); - assert(SrcTySize > DstTySize && "Not a value truncation"); - APInt Size(APInt::getLowBitsSet(SrcTySize, DstTySize)); - if (isFullSet() || getSetSize().ugt(Size)) + assert(getBitWidth() > DstTySize && "Not a value truncation"); + if (isFullSet() || getSetSize().getActiveBits() > DstTySize) return ConstantRange(DstTySize, /*isFullSet=*/true); return ConstantRange(Lower.trunc(DstTySize), Upper.trunc(DstTySize)); |