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Add a reduced testcase for the infinite loop fixed in r113763.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113770 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson 2010-09-13 18:28:40 +00:00
parent 330444e52b
commit da53582d11
1 changed files with 33 additions and 0 deletions
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33
test/Transforms/InstCombine/crash.ll
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@ -252,3 +252,36 @@ entry:
%conv6 = zext i1 %cmp5 to i32 ; <i32> [#uses=0]
ret void
}
%s1 = type { %s2, %s2, [6 x %s2], i32, i32, i32, [1 x i32], [0 x i8] }
%s2 = type { i64 }
define void @test13() nounwind ssp {
entry:
%0 = getelementptr inbounds %s1* null, i64 0, i32 2, i64 0, i32 0
%1 = bitcast i64* %0 to i32*
%2 = getelementptr inbounds %s1* null, i64 0, i32 2, i64 1, i32 0
%.pre = load i32* %1, align 8
%3 = lshr i32 %.pre, 19
%brmerge = or i1 undef, undef
%4 = and i32 %3, 3
%5 = add nsw i32 %4, 1
%6 = shl i32 %5, 19
%7 = add i32 %6, 1572864
%8 = and i32 %7, 1572864
%9 = load i64* %2, align 8
%trunc156 = trunc i64 %9 to i32
%10 = and i32 %trunc156, -1537
%11 = and i32 %10, -6145
%12 = or i32 %11, 2048
%13 = and i32 %12, -24577
%14 = or i32 %13, 16384
%15 = or i32 %14, 98304
store i32 %15, i32* undef, align 8
%16 = and i32 %15, -1572865
%17 = or i32 %16, %8
store i32 %17, i32* undef, align 8
%18 = and i32 %17, -449
%19 = or i32 %18, 64
store i32 %19, i32* undef, align 8
unreachable
}