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43afab3bdb
The justification of this change is here: http://lists.cs.uiuc.edu/pipermail/llvmdev/2015-March/082989.html According to the current GEP syntax, vector GEP requires that each index must be a vector with the same number of elements. %A = getelementptr i8, <4 x i8*> %ptrs, <4 x i64> %offsets In this implementation I let each index be or vector or scalar. All vector indices must have the same number of elements. The scalar value will mean the splat vector value. (1) %A = getelementptr i8, i8* %ptr, <4 x i64> %offsets or (2) %A = getelementptr i8, <4 x i8*> %ptrs, i64 %offset In all cases the %A type is <4 x i8*> In the case (2) we add the same offset to all pointers. The case (1) covers C[B[i]] case, when we have the same base C and different offsets B[i]. The documentation is updated. http://reviews.llvm.org/D10496 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241788 91177308-0d34-0410-b5e6-96231b3b80d8
11 lines
307 B
LLVM
11 lines
307 B
LLVM
; RUN: not llvm-as < %s >/dev/null 2> %t
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; RUN: FileCheck %s < %t
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; Test that a vector GEP may be used with a scalar base, the result is a vector of pointers
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; CHECK: '%w' defined with type '<2 x i32*>
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define i32 @test(i32* %a) {
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%w = getelementptr i32, i32* %a, <2 x i32> <i32 5, i32 9>
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ret i32 %w
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}
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