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Revert "InstCombine: Clean up weird code that talks about a modulus that's long gone."

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This causes crashes during the build of compiler-rt during selfhost. Add a
testcase for coverage.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173279 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer
2013-01-23 17:52:29 +00:00
parent 9381dd1ac9
commit 028dba376a
2 changed files with 22 additions and 1 deletions
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16
test/Transforms/InstCombine/getelementptr.ll
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@ -492,3 +492,19 @@ define void @three_gep_f(%three_gep_t2* %x) {
declare void @three_gep_g(i32*)
declare void @three_gep_h(%three_gep_t2*)
%struct.ham = type { i32, %struct.zot*, %struct.zot*, %struct.zot* }
%struct.zot = type { i64, i8 }
define void @test39(%struct.ham* %arg, i8 %arg1) nounwind {
%tmp = getelementptr inbounds %struct.ham* %arg, i64 0, i32 2
%tmp2 = load %struct.zot** %tmp, align 8
%tmp3 = bitcast %struct.zot* %tmp2 to i8*
%tmp4 = getelementptr inbounds i8* %tmp3, i64 -8
store i8 %arg1, i8* %tmp4, align 8
ret void
; CHECK: @test39
; CHECK: getelementptr inbounds %struct.ham* %arg, i64 0, i32 2
; CHECK: getelementptr inbounds i8* %tmp3, i64 -8
}