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author | David Blaikie <dblaikie@gmail.com> | 2011-12-01 20:58:30 +0000 |
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committer | David Blaikie <dblaikie@gmail.com> | 2011-12-01 20:58:30 +0000 |
commit | 54c9462c7797e3ff9358d33151fcd319a03d21af (patch) | |
tree | dce421ddf26b05071d8292a3f19b337b67636df9 /llvm/lib/Support/APInt.cpp | |
parent | 87c665fb8d78b085fd11ba0795393a18f5a79391 (diff) | |
download | bcm5719-llvm-54c9462c7797e3ff9358d33151fcd319a03d21af.tar.gz bcm5719-llvm-54c9462c7797e3ff9358d33151fcd319a03d21af.zip |
Fix unreachable return & simplify some branches.
llvm-svn: 145627
Diffstat (limited to 'llvm/lib/Support/APInt.cpp')
-rw-r--r-- | llvm/lib/Support/APInt.cpp | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/llvm/lib/Support/APInt.cpp b/llvm/lib/Support/APInt.cpp index 55cb433d893..506225f0640 100644 --- a/llvm/lib/Support/APInt.cpp +++ b/llvm/lib/Support/APInt.cpp @@ -1440,15 +1440,11 @@ APInt APInt::sqrt() const { APInt nextSquare((x_old + 1) * (x_old +1)); if (this->ult(square)) return x_old; - else if (this->ule(nextSquare)) { - APInt midpoint((nextSquare - square).udiv(two)); - APInt offset(*this - square); - if (offset.ult(midpoint)) - return x_old; - else - return x_old + 1; - } else - llvm_unreachable("Error in APInt::sqrt computation"); + assert(this->ule(nextSquare) && "Error in APInt::sqrt computation"); + APInt midpoint((nextSquare - square).udiv(two)); + APInt offset(*this - square); + if (offset.ult(midpoint)) + return x_old; return x_old + 1; } |