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author | Matt Arsenault <Matthew.Arsenault@amd.com> | 2013-08-16 02:59:17 +0000 |
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committer | Matt Arsenault <Matthew.Arsenault@amd.com> | 2013-08-16 02:59:17 +0000 |
commit | beccdd3ede609758a8c0074e01a7610d9d66e139 (patch) | |
tree | 77446c5ea8e8c4176c933d9555649324e91e2b50 /test/Transforms/InstCombine | |
parent | 4e31acb558a7f157244a11ae382c0138ee12d60b (diff) | |
download | llvm-beccdd3ede609758a8c0074e01a7610d9d66e139.tar.gz llvm-beccdd3ede609758a8c0074e01a7610d9d66e139.tar.bz2 llvm-beccdd3ede609758a8c0074e01a7610d9d66e139.tar.xz |
Add missing test for GEP + bitcast transformation
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188529 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/InstCombine')
-rw-r--r-- | test/Transforms/InstCombine/getelementptr.ll | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/getelementptr.ll b/test/Transforms/InstCombine/getelementptr.ll index 3033bf1a7b..a0e3375cf8 100644 --- a/test/Transforms/InstCombine/getelementptr.ll +++ b/test/Transforms/InstCombine/getelementptr.ll @@ -573,4 +573,28 @@ define i1 @pr16483([1 x i8]* %a, [1 x i8]* %b) { ; CHECK-NEXT: icmp ult [1 x i8]* %a, %b } +; The element size of the array matches the element size of the pointer +define i64 @test_gep_bitcast_array_same_size_element([100 x double]* %arr, i64 %N) { +; CHECK-LABEL: @test_gep_bitcast_array_same_size_element( +; CHECK: getelementptr [100 x double]* %arr, i64 0, i64 %V +; CHECK: bitcast + %cast = bitcast [100 x double]* %arr to i64* + %V = mul i64 %N, 8 + %t = getelementptr i64* %cast, i64 %V + %x = load i64* %t + ret i64 %x +} + +; The element size of the array is different the element size of the pointer +define i8 @test_gep_bitcast_array_different_size_element([100 x double]* %arr, i64 %N) { +; CHECK-LABEL: @test_gep_bitcast_array_different_size_element( +; CHECK: getelementptr [100 x double]* %arr, i64 0, i64 %N +; CHECK: bitcast + %cast = bitcast [100 x double]* %arr to i8* + %V = mul i64 %N, 8 + %t = getelementptr i8* %cast, i64 %V + %x = load i8* %t + ret i8 %x +} + ; CHECK: attributes [[NUW]] = { nounwind } |