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fix a bug I introduced, no idea how this didn't repro right.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116462 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2010-10-14 00:30:00 +00:00
parent 15ea094474
commit a5bbde8efd
2 changed files with 3 additions and 4 deletions
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4
lib/Support/APInt.cpp
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@ -2067,8 +2067,8 @@ APInt APInt::ssub_ov(const APInt &RHS, bool &Overflow) const {
}
APInt APInt::usub_ov(const APInt &RHS, bool &Overflow) const {
APInt Res = *this+RHS;
Overflow = Res.ugt(RHS);
APInt Res = *this-RHS;
Overflow = Res.ugt(*this);
return Res;
}

3
test/Transforms/ConstProp/overflow-ops.ll
View File

@ -1,5 +1,4 @@
; RUN: true
; opt < %s -constprop -S | FileCheck %s
; RUN: opt < %s -constprop -S | FileCheck %s
%i8i1 = type {i8, i1}