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05eb9581b2
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3625 91177308-0d34-0410-b5e6-96231b3b80d8
21 lines
976 B
LLVM
21 lines
976 B
LLVM
; This tests for a bug exposed by the Olden health benchmark where a shift of a
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; pointer was thrown away, causing this whole example to be "optimized" away,
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; which was quite bogus. Check that this is fixed.
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;
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; RUN: as < %s | opt -instcombine | dis | grep reg162
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implementation ; Functions:
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int %test(uint %cann-indvar) {
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%reg189-scale = mul uint %cann-indvar, 4294967295 ; <uint> [#uses=1]
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%reg189 = add uint %reg189-scale, 3 ; <uint> [#uses=1]
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%cast362 = cast uint %reg189 to int ; <int> [#uses=1]
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%cast363 = cast int %cast362 to sbyte* ; <sbyte*> [#uses=2]
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%reg160 = shl sbyte* %cast363, ubyte 1 ; <sbyte*> [#uses=1]
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%reg161 = add sbyte* %reg160, %cast363 ; <sbyte*> [#uses=1]
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%reg162 = shl sbyte* %reg161, ubyte 2 ; <sbyte*> [#uses=1]
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%RV = cast sbyte* %reg162 to int ; <int> [#uses=1]
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ret int %RV
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}
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