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| author | Chris Lattner <sabre@nondot.org> | 2010-10-14 00:30:00 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2010-10-14 00:30:00 +0000 |
| commit | a5bbde8efd9710e5daecee69ff48722e637a35b7 (patch) | |
| tree | 610f27040ed691c1156d69912a81e43966d66fe1 | |
| parent | 15ea094474924a8cd8507f8b990de0554de0151f (diff) | |
fix a bug I introduced, no idea how this didn't repro right.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116462 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Support/APInt.cpp | 4 | ||||
| -rw-r--r-- | test/Transforms/ConstProp/overflow-ops.ll | 3 |
2 files changed, 3 insertions, 4 deletions
diff --git a/lib/Support/APInt.cpp b/lib/Support/APInt.cpp index 3807314bac..88f9ac63f7 100644 --- a/lib/Support/APInt.cpp +++ b/lib/Support/APInt.cpp @@ -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; } diff --git a/test/Transforms/ConstProp/overflow-ops.ll b/test/Transforms/ConstProp/overflow-ops.ll index 50dc20566d..5587e9b623 100644 --- a/test/Transforms/ConstProp/overflow-ops.ll +++ b/test/Transforms/ConstProp/overflow-ops.ll @@ -1,5 +1,4 @@ -; RUN: true -; opt < %s -constprop -S | FileCheck %s +; RUN: opt < %s -constprop -S | FileCheck %s %i8i1 = type {i8, i1} |