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| author | Benjamin Kramer <benny.kra@googlemail.com> | 2013-02-05 19:04:36 +0000 |
|---|---|---|
| committer | Benjamin Kramer <benny.kra@googlemail.com> | 2013-02-05 19:04:36 +0000 |
| commit | faf601ee936a440027447fa11ef400cf53bc1acf (patch) | |
| tree | a7a2ae5d256cb4048a7c081ae723ddde45397d5c /test | |
| parent | 7d80dad40741ecc2e45943f685bf539eeed2ba51 (diff) | |
ConstantFolding: Fix a crash when encoutering a truncating inttoptr.
This was introduced in r173293.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174424 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/Transforms/InstSimplify/ptr_diff.ll | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/test/Transforms/InstSimplify/ptr_diff.ll b/test/Transforms/InstSimplify/ptr_diff.ll index 8651628069..8b4aa79601 100644 --- a/test/Transforms/InstSimplify/ptr_diff.ll +++ b/test/Transforms/InstSimplify/ptr_diff.ll @@ -57,3 +57,22 @@ define <4 x i32> @ptrdiff4(<4 x i8*> %arg) nounwind { %sub = sub <4 x i32> %p1, %p2 ret <4 x i32> %sub } + +%struct.ham = type { i32, [2 x [2 x i32]] } + +@global = internal global %struct.ham zeroinitializer, align 4 + +define i32 @ptrdiff5() nounwind { +bb: + %tmp = getelementptr inbounds %struct.ham* @global, i32 0, i32 1 + %tmp1 = getelementptr inbounds [2 x [2 x i32]]* %tmp, i32 0, i32 0 + %tmp2 = bitcast [2 x i32]* %tmp1 to i32* + %tmp3 = ptrtoint i32* %tmp2 to i32 + %tmp4 = getelementptr inbounds %struct.ham* @global, i32 0, i32 1 + %tmp5 = getelementptr inbounds [2 x [2 x i32]]* %tmp4, i32 0, i32 0 + %tmp6 = ptrtoint [2 x i32]* %tmp5 to i32 + %tmp7 = sub i32 %tmp3, %tmp6 + ret i32 %tmp7 +; CHECK: @ptrdiff5 +; CHECK: ret i32 0 +} |